What does diamond color 7 mean? Learn to read codes. When does the clarity of a diamond become more important?

The main indicators that influence the evaluation of gemstones are color, clarity, cut and weight of the gemstone, expressed in carats.

To easily remember all of the above, you need to know one convenient rule, the so-called 4C rule, from English - color, clarity, cut and carat weight, which in translation means color, clarity, cut and weight in carats. It is very convenient to rely on the 4C rule when describing the advantages of a gemstone and motivating its pricing, because It is on these 4 characteristics that the principle of evaluating precious stones is based.

In our country, for the official assessment of precious stones, the so-called technical conditions (TS) are used; this assessment according to the TS is also based on the 4C principle - color, clarity, cut and weight.

Cut According to their shape, diamonds are divided into round and fancy. The standard round brilliant cut with 57 facets (KR-57) is accepted; there is also a round 17-facet cut (KR-17), which is used for small stones. Since diamond has unique optical properties, the requirements for the quality of its cut in proportions are quite high. This is how the number and angles of inclination of the faces and the total height of the stone are usually very strictly specified. However, in practice it is very difficult to cut a diamond in such a way that all proportions have optimal values, therefore the quality of the cut is divided into groups “A”, “B”, “C” and “D”, indicating the deviation of the proportions from the optimal ones in descending order.

Weight- a metric carat equal to 0.2 grams is used as a unit of weight. There are three size and weight groups of diamonds: small (up to 0.29 carats inclusive), medium (from 0.30 to 0.99 carats inclusive) and large (from 1.00 carats or more). The greater the weight of the stone, the more expensive it is, and there are sharp jumps when moving from one size and weight group to another.

Diamonds whose weight is less than the weighing limit on the scales are calculated through the diameter of the stone according to the table of standard cut shapes:

Diameter, mm	Weight, car (ct)	Diameter, mm	Weight, car (ct)

Color- when determining a diamond’s color group and clarity group, one should take into account its size and weight group. Thus, there are seven color groups for the color groups of small round Kr-57 diamonds and 9 color groups for medium and large diamonds. Where 1 is absolutely colorless stones, and 7 and 9 are brown stones.

Groups of color of small diamonds of round Kr-57 and fancy cut shapes:

Color groups of medium and large diamonds:

Group	Color
	colorless higher ones, as well as with a tint of blue
	colorless
	with a subtle tint
	with a slight tint of yellowness
	with slight yellowish, greenish, aquamarine, purple and gray tints, as well as a slight brown tint
	with visible yellow, green, aquamarine and gray shades
	with a visible brown tint
	clearly visible yellow, green, lemon, aquamarine and gray shades
	very lightly colored yellow
	faintly colored yellow
	lightly colored yellow
	light yellow

	lightly colored brown
	lightly colored brown
	brown
	dark brown

Particularly noteworthy are stones of fancy colors (yellow, orange, cognac, purple, green, pink, red, light blue or dark blue). Natural stones of such colors are extremely rare and expensive. The exception is black diamonds, which entered the market relatively recently; they are cheaper than colorless stones because they do not have the same play as transparent stones.

Purity- depending on the presence of internal clarity characteristics (such as inclusions), diamonds are divided into clarity groups, taking into account viewing through a 10x magnification magnifying glass. The number of purity groups depends on weight.

Based on the existing technical conditions, the evaluation of a diamond is written in the following form: for example 1 Br KR-57 0.06 4/3 A.

What means: one round diamond with 57 facets, weighing 0.06 carats, color group 4 (i.e. with a slight tint of yellowness), clarity group 3 (i.e. with very, very small inclusions), group cut A.

Let's try to decipher the designation 2BrKr57 - 0.2ct - 3/5A

It looks like this:

« 2Br" means the number of stones in the product, in this case there are two of them and these are diamonds.

“Kr57” shows the type of stone cut:
“Kr57” - Round 57 edges,
“Kr17” - Round 17 edges,
“Kr33” - Round 33 sides.
There are not only round diamonds, but also other shapes:
“M-55” - marquise cut, elongated stone, somewhat reminiscent of the shape
pumps
"G-56" - pear-shaped
“I-57” - “emerald” cut, elongated, rectangular shape
“P-65” - “Princess” square stone with 65 facets

And many others.

0.2 ct - total carat of identical stones. If the stones in the product are of different sizes or purity, then each stone is assigned its own carat value.

Carat is a unit of measurement for the mass of a diamond and other precious stones. 1 carat = 200 milligrams = 0.200 grams. Large diamonds are much rarer than small diamonds, so large diamonds are much more valuable. Thus, a 2-carat diamond costs more than two one-carat diamonds with the same characteristics. In fact, the value of a diamond tends to increase dramatically as the weight of the diamond increases.

« 3/5 "- these numbers mean the quality characteristics of the stone. The color is written first, the purity of the stone second.

Color

Diamonds come in a variety of colors, but the clearer a diamond is on the standard scale, the more expensive it is.
In reality, there are no completely colorless diamonds; the term “colorless” describes diamonds that are on the normal color scale.

For the cheat sheet:

Diamonds with a color rating of 1 to 4 can be called “completely colorless” and have a slight hint of icy white color.

From 5 to 7 - we can say that they are “colorless”, with a slight pearly or smoky tint, visible only in comparison to being completely colorless.

Color 8 has a light sunny yellow tint.

Color 9 is close to coffee color.

It should be noted that there are also fancy shades of diamonds: pink, blue, turquoise.

Purity

Diamonds without visible defects (scratches, marks, minerals and other small characteristics that reduce the quality of the diamond) are more valuable. However, most inclusions are not visible without 10x magnification. Clarity grading is based on the location, size, type and number of flaws found in the diamond.

Diamond Clarity Rating:

Diamonds with a clarity rating of 1 to 4 can be described as “crystal clear,” with no more than three inconspicuous natural inclusions permitted, recognizable only by an experienced gemologist using a microscope with 45x magnification.

Clarity 5-6 is an almost transparent diamond, which allows for subtle natural inclusions that can only be recognized by a specialist using a sophisticated optical instrument with 10x magnification.

Clarity 7 is a Transparent diamond that allows for subtle natural inclusions or subtle changes in structure or unnoticeable graphite inclusions visible only under a sophisticated optical instrument with 10x magnification.

« A" - Cut

The cut of a diamond has the greatest effect on a diamond's sparkle and brilliance. Most gemologists believe that the cut of a diamond is one of its most important characteristics. Width and depth have a significant effect on how light passes into the diamond and is reflected as sparkle. An ideally good cut reflects light from the top of the stone, bringing out the play of light. If the cut is superficial, then the light is scattered to the sides and the diamond loses its sparkle. If the cut is too deep, the light disappears at the bottom and the diamond appears dark and dull. The “A” cut is considered the most ideal.

AGREEMENT ON PROCESSING PERSONAL DATA

Personal data privacy policy

This Personal Data Privacy Policy (hereinafter referred to as the Privacy Policy) applies to all information that a website located on a domain name (as well as its subdomains) (hereinafter referred to as the SITE) can receive about the User while using the site (as well as its subdomains) , its programs and its products.

1. DEFINITION OF TERMS

1.1 The following terms are used in this Privacy Policy:

1.1.1. "Site administration"(hereinafter referred to as the Administration) - authorized employees to manage the Site, acting on behalf of STOLICA DIAMOND LLC (hereinafter referred to as the Company), who organize and (or) carry out the processing of personal data, and also determine the purposes of processing personal data, the composition of personal data subject to processing, actions (operations) performed with personal data.

1.1.2. "Personal Information"- any information relating to a directly or indirectly identified or identifiable individual (subject of personal data).

1.1.3. “Processing of personal data”- any action (operation) or set of actions (operations) performed using automation tools or without the use of such means with personal data, including collection, recording, systematization, accumulation, storage, clarification (updating, changing), extraction, use, transfer (distribution, provision, access), depersonalization, blocking, deletion, destruction of personal data.

1.1.4. "Confidentiality of personal data"- obligatory for the operator or other person who has access to personal data to comply with the requirement not to allow their distribution without the consent of the subject of personal data or the presence of another legal basis.

1.1.5. "Website" is a collection of interconnected web pages located on the Internet at a unique address (URL): , as well as its subdomains.

1.1.6. "Subdomains"- these are pages or a set of pages located on third-level domains belonging to the site, as well as other temporary pages, at the bottom of which the contact information of the Administration is indicated

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1.1.9. "IP address"- a unique network address of a node in a computer network through which the User gains access to the SITE.

1.1.10. “Product” is a product that the User orders on the website and pays through payment systems.

2. GENERAL PROVISIONS

2.1. Use of the site by the User means acceptance of this Privacy Policy and the terms of processing of the User’s personal data.

2.2. In case of disagreement with the terms of the Privacy Policy, the User must stop using the site.

2.3. This Privacy Policy applies to the site. The site does not control and is not responsible for third party sites that the User can access via links available on the site.

2.4. The Administration does not verify the accuracy of the personal data provided by the User.

3. SCOPE OF THE PRIVACY POLICY

3.1. This Privacy Policy establishes the Administration’s obligations to non-disclose and ensure a regime for protecting the confidentiality of personal data that the User provides at the Administration’s request when registering on the site, when subscribing to an e-mail newsletter and/or when placing an order.

3.2. Personal data permitted for processing under this Privacy Policy is provided by the User by filling out forms on the website and includes the following information:

3.2.1. last name, first name, patronymic of the User;

3.2.2. User's contact phone number;

3.2.3. email address (e-mail)

3.2.4. place of residence of the User (if necessary)

3.2.5. delivery address of the Product (if necessary)

3.3. The site protects Data that is automatically transmitted when visiting pages:

IP address;

Information from cookies;

Browser information

Access time;

Referrer (address of previous page).

3.3.1. Disabling cookies may result in the inability to access parts of the site that require authorization.

3.3.2. The site collects statistics about the IP addresses of its visitors. This information is used to prevent, identify and resolve technical problems.

3.4. Any other personal information not specified above (visit history, browsers used, operating systems, etc.) is subject to secure storage and non-distribution, except for the cases provided for in paragraphs. 5.2. and 5.3. of this Privacy Policy.

4. PURPOSES OF COLLECTING USER’S PERSONAL INFORMATION

4.1. The Administration may use the User’s personal data for the purposes of:

4.1.1. Identification of the User registered on the site for his further authorization, placing an order and other actions.

4.1.2. Providing the User with access to personalized site data.

4.1.3. Establishing feedback with the User, including sending notifications, requests regarding the use of the site, provision of services and processing of requests and applications from the User.

4.1.4. Determining the location of the User to ensure security and prevent fraud.

4.1.5. Confirmation of the accuracy and completeness of personal data provided by the User.

4.1.6. Creating an account to use parts of the site, if the User has agreed to create an account.

4.1.7. Notifications to the User by email.

4.1.8. Providing the User with effective technical support if problems arise when using the site.

4.1.9. Providing the User, with his consent, with special offers, pricing information, newsletters and other information on behalf of the site.

5. METHODS AND TERMS OF PROCESSING PERSONAL INFORMATION

5.1. The processing of the User's personal data is carried out without a time limit, in any legal way, including in personal data information systems using automation tools or without the use of such tools.

5.2. The User agrees that the Administration has the right to transfer personal data to third parties, in particular, courier services, postal organizations (including electronic), telecommunication operators, solely for the purpose of fulfilling the User’s order placed on the website, including delivery of Goods, documentation or e-mail messages.

5.3. The User's personal data may be transferred to authorized government bodies of the Russian Federation only on the grounds and in the manner established by the legislation of the Russian Federation.

5.4. In the event of loss or disclosure of personal data, the Administration has the right not to inform the User about the loss or disclosure of personal data.

5.5. The Administration takes the necessary organizational and technical measures to protect the User’s personal information from unauthorized or accidental access, destruction, modification, blocking, copying, distribution, as well as from other unlawful actions of third parties.

5.6. The Administration, together with the User, takes all necessary measures to prevent losses or other negative consequences caused by the loss or disclosure of the User’s personal data.

6. RIGHTS AND OBLIGATIONS OF THE PARTIES

6.1. The user has the right:

6.1.1. Make a free decision to provide your personal data necessary to use the site and consent to their processing.

6.1.2. Update, supplement the provided information about personal data if this information changes.

6.1.3. The user has the right to receive from the Administration information regarding the processing of his personal data, unless such right is limited in accordance with federal laws. The user has the right to demand from the Administration clarification of his personal data, blocking or destruction of it if the personal data is incomplete, outdated, inaccurate, illegally obtained or is not necessary for the stated purpose of processing, as well as take measures provided by law to protect his rights.

6.2. The administration is obliged:

6.2.1. Use the information received solely for the purposes specified in clause 4 of this Privacy Policy.

6.2.2. Ensure that confidential information is kept secret, not disclosed without the prior written permission of the User, and also not sell, exchange, publish, or disclose in other possible ways the transferred personal data of the User, with the exception of paragraphs. 5.2 and 5.3. of this Privacy Policy.

6.2.3. Take precautions to protect the confidentiality of the User's personal data in accordance with the procedure usually used to protect this type of information in existing business transactions.

6.2.4. Block personal data relating to the relevant User from the moment of application or request from the User, or his legal representative or the authorized body for the protection of the rights of personal data subjects for the period of verification, in the event of detection of unreliable personal data or unlawful actions.

7. RESPONSIBILITY OF THE PARTIES

7.1. The Administration, which has not fulfilled its obligations, is responsible for losses incurred by the User in connection with the unlawful use of personal data, in accordance with the legislation of the Russian Federation, except for the cases provided for in paragraphs. 5.2., 5.3. and 7.2. of this Privacy Policy.

7.2. In case of loss or disclosure of Confidential Information, the Administration is not responsible if this confidential information:

7.2.1. Became public domain until it was lost or disclosed.

7.2.2. Was received from a third party before it was received by the Resource Administration.

7.2.3. Was disclosed with the consent of the User.

7.3. The user bears full responsibility for compliance with the requirements of the legislation of the Russian Federation, including laws on advertising, on the protection of copyright and related rights, on the protection of trademarks and service marks, but not limited to the above, including full responsibility for the content and form of materials.

7.4. The user acknowledges that responsibility for any information (including, but not limited to: data files, texts, etc.) to which he may have access as part of the site lies with the person who provided such information.

7.5. The User agrees that the information provided to him as part of the site may be an object of intellectual property, the rights to which are protected and belong to other Users, partners or advertisers who post such information on the site. The User may not modify, rent, loan, sell, distribute or create derivative works based on such Content (in whole or in part), unless such actions have been expressly authorized in writing by the owners of such Content in accordance with terms of a separate agreement.

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7.7. The Administration is not liable to the User for any loss or damage incurred by the User as a result of the deletion, failure or inability to save any Content and other communication data contained on the site or transmitted through it.

7.8. The administration is not responsible for any direct or indirect losses resulting from:

Use or inability to use the site or individual services;

Unauthorized access to the User's communications;

Statements or conduct of any third party on the Site.

7.9. The administration is not responsible for any information posted by the user on the site, including, but not limited to: information protected by copyright, without the express consent of the copyright owner.

8. DISPUTE RESOLUTION

8.1. Before filing a claim in court regarding disputes arising from the relationship between the User and the Administration, it is mandatory to submit a claim (a written proposal or an electronic proposal for a voluntary settlement of the dispute).

8.2. The recipient of the claim, within 30 calendar days from the date of receipt of the claim, notifies the claimant in writing or electronically of the results of consideration of the claim.

8.3. If an agreement is not reached, the dispute will be referred to the Moscow Arbitration Court. If the dispute is not within the jurisdiction of arbitration courts, such a dispute is subject to consideration in the Zamoskvoretsky District Court of Moscow.

8.4. The current legislation of the Russian Federation applies to this Privacy Policy and the relationship between the User and the Administration.

9. ADDITIONAL TERMS

9.1. The Administration has the right to make changes to this Privacy Policy without the User’s consent.

9.2. The new Privacy Policy comes into force from the moment it is posted on the website, unless otherwise provided by the new edition of the Privacy Policy.

9.3. Any suggestions or questions regarding this Privacy Policy should be addressed to: [email protected].

9.4. The current Privacy Policy is available on the page at http://

Moscow city,

LLC "CAPITAL DIAMOND"

Christina Tsurtsumiya

2015-05-05 15:00:00

“It remains unharmed in the strongest fire, it is the light of the sun, condensed in the earth and cooled by time, it plays with all colors, but itself remains transparent, like a drop of water...” These words were written long before the well-known phrase of Marilyn Monroe, but do not lose relevance today.

Needless to say, what every woman would like to have. The price of products with precious minerals, and primarily with cut diamonds, largely depends on the quality of the stone. Therefore, it is very important to be able to correctly decipher the characteristics indicated on the product tag.

Diamond grading system: 4 “C”

When conducting an expert assessment of a stone, a gemologist takes into account 4 mandatory criteria, called the 4 “Cs”.

The first parameter is carat weight (stone weight). As you know, the generally accepted measure of the mass of jewelry stones is a carat, equal to 0.2 grams. The word “carat” itself comes from the name of the pod tree, the seeds of which were originally used to measure minerals.

The second is color. To a layman, diamonds appear completely transparent, but in fact their shades vary.

The third parameter is clarity. The purity of a mineral is determined by the presence of inclusions in its composition, as well as their characteristics.

The fourth parameter is cut—the cut of the diamond.

It is these indicators that are the basis for determining the quality of the diamond and, accordingly, the cost of the entire product. And now first things first.

Let's decipher the characteristics

The certificate for set jewelry stones is a tag. It is on it that the main characteristics of diamonds are indicated, encrypted in a special code. Each code corresponds to either one or several identical stones fixed into the product.

The first number indicates the number of diamonds with identical characteristics.

This is followed by a code for the type of stone cut, which includes the letter designation of the diamond shape and the number of facets. Then the total carat weight of the stones with these characteristics set into the product is written. The next two numbers, indicated through a fraction, indicate the class of color and purity, respectively (according to Russian technical specifications). Next, the quality of the diamond cut is noted in accordance with the standard cut.

Cut quality

At the beginning of the 20th century, Russian-born mathematician Marcel Tolkowsky published a study “Diamond Design”, in which he presented the proportions of an ideal diamond cut from the point of view of refraction of rays, which ensures maximum shimmer of light. Thus, round diamonds with 57 facets became known as “Tolkowsky diamonds” and were designated Kr-57. It is this type of cut that is called Russian all over the world and is considered the world standard.

For small diamonds, a round shape with 17 facets (Kr-17) is considered ideal. This cut allows you to maintain the most optimal ratio of the quality characteristics of the stone with its price.

In Russia, diamond cutting parameters are regulated by TU 117-4.2099-2002. The document indicates some geometric parameters of diamonds, according to which the stones are classified into one of four categories: from A to G. The highest quality cut, in which all recognized standard parameters are observed, is designated by the letter “A”. Thus, the diamonds in SOKOLOV jewelry have exactly this cut.

Diamond color

There are several shades of diamond. Some of them have differences that are so insignificant, in the eyes of the average person, that only an experienced gemologist can distinguish between them.

In Russia, the criteria for assessing the color of a diamond are regulated by TU 117-4.2009-2002. Shades of the stone vary from bluish-white to cognac and are designated by numbers from 1 to 9. Assessing color, like determining other characteristics of a diamond, is a painstaking process that requires the highly professionalism of a gemologist. This is evidenced by the terms “barely perceptible”, “brightly visible”, “insignificant shade”, etc. used in the technical specifications, on the basis of which a diamond is assigned to one or another color group.

In accordance with the current technical conditions, the color of diamonds with 17 facets, from 57 to 0.29 carats, and 57 facets from 0.30 carats is assessed differently. Therefore, the shade of a small 4th color crystal will be more saturated than the color of a larger 4th class diamond from 0.30 carats.

Among 17-sided stones, the most optimal in terms of price and quality are considered to be group 2 diamonds (“with a subtle tint” or “with a slight yellow tint”). And for larger crystals with 57 faces, this is color class 3. According to the American GIA system (from the name of the Gemological Institute of America), these numbers correspond to the designations F, G and H.

Color scale for diamonds of different sizes

Description	Diamond color group
	Kr-17	Kr-57
		up to 0.3ct	from 0.3ct
Bluish white	1	1	1
With a subtle tint			2
	2	2	3
With a slight yellow tint		3	4
With a little tint	3		5
White, with visible color tint		4	6
With a brightly visible color tint			7
Yellow		5	8-1 - 8-5*
Brown color	4	6	9-1 - 9-4*
		7

*The second number after the main one indicates the color intensity in one color group.

Diamond Clarity

Just like determining the color of a stone, assessing its clarity does not occur the same for all diamonds. Russian specifications describe in detail the nature of inclusions (their volume, quantity, location, etc.) that influence the classification of a diamond into a specific clarity class.

For Kr-17 diamonds used in jewelry, the optimal clarity groups are 2 and 3. For Kr-57 up to 0.29 carats these are groups 4 and 5, and for larger diamonds with 57 facets - 4-6.

It is important to consider that the groups have a fairly wide range. In simple words: five five different. Therefore, do not rush to conclusions if you see a cleanliness class that is too “low,” in your opinion. In this case, it is better to check with the jewelry manufacturer for more detailed information about diamond suppliers, cutting features and other aspects that affect the quality of the stone.

Characteristics of purity groups	Diamond Clarity Group
	KR-17	KR-57		GIA
		Up to 0.29ct	From 0.29ct
Without defects	1	1	1	IF
Defects: one bright point in the central zone, visible only when viewed from the pavilion; no more than two subtle light dots or one subtle stripe in the middle or peripheral zone	2	2	2	WS-1
Defects: no more than three minor light spots in the central area; no more than two defects in the form of minor dark dots or stripes in the middle and peripheral zones		3	3	WS-2
Defects: no more than two minor dark spots in the central part; no more than four small light dots, no more than two stripes or one strip and three small light dots in any zone; minor crack in the peripheral area			4
Defects: one small light cloud or one small crack in the central zone or no more than six defects in the form of small light stripes; no more than three minor cracks in the middle and peripheral zones	3	4	5	VS-1
				VS-2
Defects in any zones: no more than eight small scattered light defects in the form of dots, stripes, small cracks, bubbles, microseams and growth lines, or up to five small dark dots, or one minor graphite inclusion		5	6	SI-1
Defects in any zones: no more than eight small scattered defects (including those faintly visible to the naked eye) in the form of dots, stripes, small cracks, dust clouds or one small graphite inclusion			7
Numerous defects in any zones: no more than two small graphite inclusions, or no more than two small cracks, or no more than one small cloud in combination with a graphite inclusion, or one small crack in combination with a graphite inclusion, or several small cracks in combination with graphite turning on			7a	SI-2
				SI-3
Numerous defects in any zones: except for graphite inclusions, including in the form of cracks visible to the naked eye	4	6	8	I-1
Numerous defects in any zones: in the form of graphite inclusions or graphite inclusions in combination with cracks visible to the naked eye			9	I-2
Defects in any zones: of various types, visible to the naked eye, transparent for viewing at least 60% of the diamond pavilion facets		7	10
Defects in any zones: of various types, visible to the naked eye, less than 60% of the diamond pavilion facets are transparent for viewing	5	8	11	I-3

Black diamonds

In recent years, jewelry with black diamonds has come into fashion. Some people mistakenly believe that these minerals are low-grade.

The cost of black diamonds is indeed much lower, but they are rarer. Thanks to this, jewelry with them is often considered exclusive. When selecting black diamonds, the color saturation of the stone, uniformity of color, and absence of chips and cracks are taken into account.

Choose diamond jewelry wisely and delight yourself and your loved ones with precious gifts.

Inna Koval 07/22/2019

All the best and most beautiful for girls. All women should have a diamond. It makes the female sex self-confident and of course more beautiful. Answer

Olga 07/21/2019

Mysterious black diamonds, shimmering with a mysterious brilliance, are mesmerizing. Amazing stones captivate with their refined beauty and perfection in every facet. Absorbing rays of light, black diamonds sparkle, harmonizing with the starry shine of white diamonds and gold. Answer

Olga 07/03/2019

A diamond is a stone that will always be the standard of taste and status of its owner. Years will pass, but diamonds will always be the most expensive and sought-after stones in jewelry. I am conservative in tastes, both in the choice of clothes and in the choice of jewelry. In my opinion, the best addition to any classic dress or evening dress would be gold with diamonds or gold with pearls. As a modern option, you can consider ceramic jewelry made of ceramics in gold and with precious diamond inserts. Answer

Ekaterina K 06/29/2019

I love diamond for its versatility and fantastic beauty. A cut diamond looks like a star. You don't have to worry about the color of your clothes - it goes with everything. Diamonds also go well with other stones - sapphires, rubies. Answer

Albina Khasanova 25.05.2019

Ceramics and diamonds are my favorites. I really like this material. Rings are very fashionable and modern; when paired with diamonds, they become more attractive. I would love to purchase such a product. Answer

Albina Khasanova 25.05.2019

I really like the combination of gold. White and rose or yellow gold go great together. I liked the decorations in the article. And the diamonds and geometric curves simply make the product incredibly beautiful. Answer Christina Tsurtsumiya

2015-05-05 15:00:00

Needless to say, every woman would like to have diamond jewelry. The price of products with precious minerals, and primarily with cut diamonds, largely depends on the quality of the stone. Therefore, it is very important to be able to correctly decipher the characteristics indicated on the product tag.

Diamond grading system: 4 “C”

When conducting an expert assessment of a stone, a gemologist takes into account 4 mandatory criteria, called the 4 “Cs”.

The second is color. To a layman, diamonds appear completely transparent, but in fact their shades vary.

The third parameter is clarity. The purity of a mineral is determined by the presence of inclusions in its composition, as well as their characteristics.

The fourth parameter is cut—the cut of the diamond.

It is these indicators that are the basis for determining the quality of the diamond and, accordingly, the cost of the entire product. And now first things first.

Let's decipher the characteristics

The first number indicates the number of diamonds with identical characteristics.

Cut quality

For small diamonds, a round shape with 17 facets (Kr-17) is considered ideal. This cut allows you to maintain the most optimal ratio of the quality characteristics of the stone with its price.

Diamond color

There are several shades of diamond. Some of them have differences that are so insignificant, in the eyes of the average person, that only an experienced gemologist can distinguish between them.

Color scale for diamonds of different sizes

Description	Diamond color group
	Kr-17	Kr-57
		up to 0.3ct	from 0.3ct
Bluish white	1	1	1
With a subtle tint			2
	2	2	3
With a slight yellow tint		3	4
With a little tint	3		5
White, with visible color tint		4	6
With a brightly visible color tint			7
Yellow		5	8-1 - 8-5*
Brown color	4	6	9-1 - 9-4*
		7

*The second number after the main one indicates the color intensity in one color group.

Diamond Clarity

For Kr-17 diamonds used in jewelry, the optimal clarity groups are 2 and 3. For Kr-57 up to 0.29 carats these are groups 4 and 5, and for larger diamonds with 57 facets - 4-6.

Characteristics of purity groups	Diamond Clarity Group
	KR-17	KR-57		GIA
		Up to 0.29ct	From 0.29ct
Without defects	1	1	1	IF
Defects: one bright point in the central zone, visible only when viewed from the pavilion; no more than two subtle light dots or one subtle stripe in the middle or peripheral zone	2	2	2	WS-1
Defects: no more than three minor light spots in the central area; no more than two defects in the form of minor dark dots or stripes in the middle and peripheral zones		3	3	WS-2
Defects: no more than two minor dark spots in the central part; no more than four small light dots, no more than two stripes or one strip and three small light dots in any zone; minor crack in the peripheral area			4
Defects: one small light cloud or one small crack in the central zone or no more than six defects in the form of small light stripes; no more than three minor cracks in the middle and peripheral zones	3	4	5	VS-1
				VS-2
Defects in any zones: no more than eight small scattered light defects in the form of dots, stripes, small cracks, bubbles, microseams and growth lines, or up to five small dark dots, or one minor graphite inclusion		5	6	SI-1
Defects in any zones: no more than eight small scattered defects (including those faintly visible to the naked eye) in the form of dots, stripes, small cracks, dust clouds or one small graphite inclusion			7
Numerous defects in any zones: no more than two small graphite inclusions, or no more than two small cracks, or no more than one small cloud in combination with a graphite inclusion, or one small crack in combination with a graphite inclusion, or several small cracks in combination with graphite turning on			7a	SI-2
				SI-3
Numerous defects in any zones: except for graphite inclusions, including in the form of cracks visible to the naked eye	4	6	8	I-1
Numerous defects in any zones: in the form of graphite inclusions or graphite inclusions in combination with cracks visible to the naked eye			9	I-2
Defects in any zones: of various types, visible to the naked eye, transparent for viewing at least 60% of the diamond pavilion facets		7	10
Defects in any zones: of various types, visible to the naked eye, less than 60% of the diamond pavilion facets are transparent for viewing	5	8	11	I-3

Black diamonds

In recent years, jewelry with black diamonds has come into fashion. Some people mistakenly believe that these minerals are low-grade.

Choose diamond jewelry wisely and delight yourself and your loved ones with precious gifts.

Inna Koval 07/22/2019

All the best and most beautiful for girls. All women should have a diamond. It makes the female sex self-confident and of course more beautiful. Answer

Olga 07/21/2019

Olga 07/03/2019

Ekaterina K 06/29/2019

Albina Khasanova 25.05.2019