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Ideal Cuts

<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="780"><tbody><tr><td valign="top" style="width: 12.9658%;">
 Popularity
 </td>
 <td valign="top" style="width: 86.9565%;">
 Round cut diamond&nbsp;is the most popular diamond shape. On account of its brilliance, it is often recognized as a
 symbol of the diamond trade itself.
 </td>
 </tr>
 <tr>
 <td valign="top">
 Cut
 </td>
 <td valign="top">
 A total depth of 59-62.5% and a total table
 of 53%-58.5% is preferred in round brilliant cut diamonds. Please see the
 chart below for detailed information and analysis.
 </td>
 </tr>
 <tr>
 <td valign="top">
 Fluorescence
 </td>
 <td valign="top">
 Often a negative factor, it can be helpful in some cases. See more below.
 </td>
 </tr>
 <tr>
 <td valign="top">
 Certification
 </td>
 <td valign="top">
 <a href="https://www.petragems.com/education/gia-vs-ags/" target="_blank">GIA and AGS</a>&nbsp;are
 the best grading labs. Buy a diamond that is graded by one of these two labs. Carefully review the section below on how to read a grading report.
 </td>
 </tr>
 <tr>
 <td valign="top">
 Color
 </td>
 <td valign="top">
 While D to F are top color grades, we also
 recommend&nbsp;<a href="https://www.petragems.com/education/g-color-diamonds/">G color</a>. Additionally,
 H and I are fantastic budget color options to consider.
 </td>
 </tr>
 <tr>
 <td valign="top">
 Clarity
 </td>
 <td valign="top">
 Preferably, flawless to&nbsp;<a href="https://www.petragems.com/blog/what-is-a-vvs-diamond/">VSS</a>/VS1 clarity
 ranges are great, but VS2 is also safe. SI1/SI2 are good budget options. When
 considering SI2 clarity diamonds, carefully review the clarity
 characteristics and location of inclusions to determine if the stone is eye
 clean.
 </td>
 </tr>
 <tr>
 <td valign="top">Settings 
 
 
 </td>
 <td valign="top">Round settings are available in many styles, from classics to halos, vintage to infinity, and swirl designs. Here is a&nbsp;list of our top&nbsp;<a href="https://www.petragems.com/round-engagement-rings/">round cut diamond engagement rings.</a></td>
 </tr><tr>
 <td valign="top">
 Balancing 4Cs
 </td>
 <td valign="top">
 If budget is not a primary concern, look for
 a round diamond with&nbsp;specs like this one (<a href="https://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-4520944.htm?a_aid=5c83f569cab95" class="external" rel="nofollow">option
 1</a>, FL-VS1/D-E range). Conversely, if an excellent quality large stone is desired within a
 reasonable budget range, specs like these are what we would recommend (<a href="https://www.jamesallen.com/loose-diamonds/round-cut/1.20-carat-g-color-vs2-clarity-true-hearts-cut-sku-16701927?a_aid=5c83f22427304" class="external" rel="nofollow">option
 2</a>, VS-SI1/F-G range). If the budget is tight and the goal is to buy a big stone with
 decent gem quality, buy something like this (<a href="https://www.bluenile.com/diamond-details/LD11754060?a_aid=5c83f22427304" class="external" rel="nofollow">option 3</a>, SI1-SI2/H-I range). For buyers looking for a big stone with a limited budget, consider compromising on color while
 maximizing clarity and cut&nbsp;(<a href="https://www.jamesallen.com/loose-diamonds/round-cut/2.01-carat-m-color-vs1-clarity-excellent-cut-sku-14838160?a_aid=5c83f22427304" class="external" rel="nofollow">option
 4</a>, VS2-FL/J-M range).
 </td>
 </tr>
 </tbody>
</table>

Round Cut Key Insights

Retailers might use phrases like "heart &amp; arrows" and "hearts on fire." However, the fundamental standards and techniques for cutting a round brilliant diamond remain relatively consistent. So long as buyers adhere to the prescribed proportions outlined below, they can adeptly identify a well-cut round diamond regardless of its brand name.<img src="https://admin.petragems.com/api/Images/img-1688238559.jpeg" alt="round cut perfect shallow deep cut" width="593px" height="260px" title="round diamond perfect vs deep cut" style="width: 593px; height: 260px;">While we extensively discuss 4Cs and other critical quality factors concerning round diamonds in the sections below, we advise against compromising the quality of a round diamond's cut. Cutters employ various techniques to maximize yield from the original rough diamond, which might entail shortcuts that adversely affect the diamond's quality. Our proportions chart below serves as an invaluable safeguard against such practices.



<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="780" style="width: 98.3257%; margin-left: 0.608828%;">
 <tbody>
 <tr>
 <td valign="top" style="width: 26.6304%; border-color: rgb(0, 0, 0);">
 Depth %
 Poor/Fair: &lt;56/&gt;65%
 Good: 57.6-58/63.4-64.5
 Very Good: 58-59/62.8-63.3
 Excellent: 59-62.6
 </td>
 <td valign="top" style="width: 25.2329%; border-color: rgb(0, 0, 0);">
 Table %
 Poor/Fair: &lt;50/&gt;68.5&gt;
 Good: 51-52/62-64
 Very Good: 51-52/59-62
 Excellent: 53-58.5
 </td>
 </tr>
 <tr>
 <td valign="top" style="border-color: rgb(0, 0, 0);">
 Culet
 Poor/Fair: Medium
 Good: Small
 Very Good: None/Very Small
 Excellent: None
 </td>
 <td valign="top" style="border-color: rgb(0, 0, 0);">
 Crown Angle
 Poor/Fair: &lt;28.5/&gt;38.5
 Good: 30-32/36-38
 Very Good: 32-34/35-36
 Excellent: 34-35
 </td>
 </tr>
 <tr>
 <td valign="top" style="border-color: rgb(0, 0, 0);">
 Pavilion Angle
 Poor/Fair: &lt;39/&gt;46
 Good: 41-42/44-45.3
 Very Good: 41.3-42.6/43.3-43.8
 Excellent: 40-41.2
 </td>
 <td valign="top" style="border-color: rgb(0, 0, 0);">
 Girdle
 Poor/Fair: Ex. Thin – Ex. Thick
 Good: Very thin - thick
 Very Good: Very thin - slightly thick
 Excellent: Thin - slightly thick
 </td>
 </tr>
 </tbody>
</table><a href="https://www.petragems.com/education/round-cut-diamonds" target="_blank"><img src="https://admin.petragems.com/api/Images/Picture46.jpg" alt="Round Cut Diagram" width="524px" height="286px" title="round cut diamond chart" style="width: 524px; height: 286px;"></a>Round Cut Diamond Illustration by&nbsp;<a href="https://en.wikipedia.org/wiki/Gemological_Institute_of_America" target="_blank" class="external" rel="nofollow">GIA</a>.
 Copyrights: GIA

James Allen's cutting-edge&nbsp;<a href="https://www.jamesallen.com/loose-diamonds/all-diamonds/?Cut=TrueHearts?a_aid=5c83f22427304/" class="external" rel="nofollow">40X 360°HD technology</a> helps assess the cut quality of round diamonds. This innovative tool empowers buyers to evaluate diamond's cut, color, and clarity, enabling buyers to precisely pinpoint the placement of inclusions and identify problematic black crystals and other flaws. Buyers can also access 360-degree 3D videos of thousands of diamonds through this platform.<a href="https://www.petragems.com/education/round-cut-diamonds" target="_blank"><img src="https://admin.petragems.com/api/Images/Picture49.jpg" alt="ideal cut proportions" width="476px" height="113px" title="ideal proportions for round cut" style="width: 476px; height: 113px;"></a>Excellent vs. Super Ideal Proportions

The
above chart is critical in discerning a
super ideal cut diamond from an ideal or excellent cut counterpart,
particularly when evaluating two diamonds both graded as excellent cut by GIA.
To make an accurate distinction, review the
crown and pavilion angles, as well as the girdle size. Beyond the evident
significance of <a href="https://www.petragems.com/education/diamond-depth-and-table/">depth and table</a>, each of these factors contributes to
the nuanced variations in cut quality.<img src="	https://admin.petragems.com/api/Images/img-1688495785.jpeg" alt="round cut ideal scope HCA heart and arrows" width="361" title="heart and arrows round cut" height="372">For further insights, check&nbsp;our article on the <a href="https://www.petragems.com/education/is-diamond-cut-important/">importance of diamond cut</a>. If budget constraints factor, there is leeway to consider a cut grade as low as "very good," provided certain conditions are met. A stone that isn't excessively deep—avoiding an overly small appearance—or excessively shallow—thus retaining brilliance and fire—can be a suitable compromise. Here's an <a href="https://www.jamesallen.com/loose-diamonds/round-cut/1.50-carat-f-color-vs2-clarity-very-good-cut-sku-18152725?a_aid=5c83f22427304/" class="external" rel="nofollow">example</a> of a very good cut diamond closely resembling an excellently cut one. Should buyers locate a diamond with comparable cut proportions, they shoit without it being graded as "excellent cut" by GIA.&nbsp;

Ideal Round Cut Diamond Proportions

Color is considered as second most significant factor after cut when assessing a diamond's quality. White diamonds span from colorless (D-F)
 and near-colorless (G-J) to Z, encompassing shades ranging from faint to
 light yellow. While individuals with the means often favor colorless diamonds, G and H color diamonds offer remarkable choices.
 Opting for an H or I color diamond opens the possibility of utilizing faint to
 medium <a href="https://www.petragems.com/education/diamond-fluorescence/">blue fluorescence</a>, a trait that complements yellow hues and enhances the
 diamond's perceived whiteness. Additional insights can be gleaned from our
 comprehensive <a href="https://www.petragems.com/education/diamond-color/">diamond color scale and chart</a>.<img src="https://admin.petragems.com/api/Images/Picture51.jpg" alt="diamond color chart" width="680" height="360" title="diamond color scale" style="width: 680px; height: 360px;">

Pro tip: Should a buyer have to decide between a VVS1 clarity H color diamond and a VS1 clarity G color diamond, the former (VS1 G) is a better choice when all other factors are held constant. Exercise caution with
 strong blue fluorescence, particularly in D-G color round diamonds. This type
 of fluorescence can often detract from the overall appeal of high-color-grade diamonds. The chart below serves as a valuable reference for a more detailed analysis of color in round cut diamonds based on carat weight.



<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="780">
 <tbody>
 <tr>
 <td valign="top" style="width: 14.2081%;">
 <a href="https://www.jamesallen.com/loose-diamonds/round-cut/1.21-carat-g-color-vvs1-clarity-excellent-cut-sku-18184302?a_aid=5c83f22427304">&lt; 0.50 Carat</a> 
 Poor/Far: &gt;M/ L-M 
 Good: I-K 
 Very Good: G-I 
 Excellent: D-G
 </td>
 <td valign="top" style="width: 14.6739%;">
 0.51 – 1.0 Carat 
 Poor/Fair: J-K /
 &gt;L 
 Good: I 
 Very Good: H 
 Excellent: D-G
 </td>
 </tr>
 <tr>
 <td valign="top">
 1.0 – 2.0 Carat 
 Poor/Fair: &gt;J 
 Good: I/H 
 Very Good: G 
 Excellent: D-F
 </td>
 <td valign="top">
 &gt;2.0 Carat 
 Poor/Fair: &gt;J 
 Good: H-I 
 Very Good: F-G 
 Excellent: D-E
 </td>
 </tr>
 <tr>
 <td valign="top" colspan="2">
 Fluorescence 
 Poor/Fair: Strong 
 Good: Medium 
 Very Good: Faint 
 Excellent: None</td></tr></tbody></table>

Round Cut Diamonds Color

GIA's <a href="https://www.petragems.com/education/diamond-clarity/">clarity grading scale</a> for diamonds
 range from flawless (FL) to I3, with FL being the highest and I3 being the
 lowest grade. Ensuring minimal visible inclusions is pivotal to a diamond's
 overall aesthetic and brilliance. Assessing clarity, among the 4Cs, is a highly technical&nbsp;task.

Which types of inclusions are deemed acceptable, and which
 should be avoided?

In brief, avoid prominent black
 crystals while also confirming that inclusions do not appear on the diamond's
 table. Furthermore,&nbsp; small inclusions uniformly
 dispersed across the stone are best—this characteristic ensures that inclusions remain
 indivisible to the naked eye. Lastly,&nbsp;verify that the
 diamond's clarity grade is not based on clouds.

Although not necessarily unfavorable inclusions,&nbsp;if a diamond's clarity grade hinges solely on clouds, the stone can take on a hazy, oily appearance devoid of the desired
 sparkle.<a href="https://www.jamesallen.com/education/diamond/4cs-clarity/?a_aid=5c83f22427304" target="_blank"><img src="https://admin.petragems.com/api/Images/Picture50.jpg" alt="diamond clarity chart" width="685" height="401" title="diamond clarity scale" style="width: 685px; height: 401px;"></a>The chart below is a
 general guide for evaluating clarity in round diamonds:

<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="780">
 <tbody>
 <tr>
 <td valign="top" style="width: 14.5963%;">
 &lt;0.5 Carat 
 Poor/Fair: &gt;I1/ I1 
 Good: SI2 
 Very Good: SI1-VS2 
 Excellent: FL-VS1
 </td>
 <td valign="top" style="width: 15.9938%;">
 0.51 – 1.0 Carat 
 Poor/Fair: &gt; I1 
 Good: SI2 
 Very Good: SI1-VS2 
 Excellent: FL-VS1
 </td>
 </tr>
 <tr>
 <td valign="top">
 1.0 – 2.0 Carat 
 Poor/Fair: &gt;I1 
 Good: SI2-SI1 
 Very Good: VS2 
 Excellent: FL-VS1
 </td>
 <td valign="top">
 &gt;2.0 Carat 
 Poor/Fair: &gt;I1 
 Good: SI2-SI1 
 Very Good: VS1-VS2 
 Excellent: FL-WS2</td></tr></tbody></table> Avoid a round diamond whose clarity grade is "based on clouds." These diamonds often lack the vibrant brilliance that characterizes a desirable gem. To ascertain whether a diamond's clarity grade is based on clouds, refer to the comment section within the GIA report, where it will indicate such findings. It is crucial to differentiate between the presence of clouds as inclusions, which typically pose no major concern, and a clarity grade based on clouds.

Round Cut Diamonds Clarity

In addition to the well-known 4Cs, it is imperative for buyers to be familiar with the following key aspects of a round cut diamond grading report or certificate, as highlighted in the image below.<img src="	https://admin.petragems.com/api/Images/img-1692906382.jpeg" alt="Round Cut Diamond GIA report" width="943" height="525" title="Round Cut Diamond Certificate">Watch <a href="https://www.jamesallen.com/loose-diamonds/round-cut/1.02-carat-f-color-vs2-clarity-true-hearts-cut-sku-17179284?a_aid=5c83f22427304" class="external" rel="nofollow">HD Video</a> of this Diamond. Measurements: This is important because it will inform the buyer of the surface size of the diamond (how big the diamond will appear in millimeters).Fluorescence: This should be considered as the 5th C. In this particular example, since the color is F, avoiding fluorescence is advisable. However, medium blue fluorescence is not as problematic as strong blue fluorescence.Comments: This section will display clarity-related factors and will also highlight whether a diamond is clarity-enhanced (through methods such as laser drilling or color enhancement, etc.). Additionally, watch for comments like "clarity grade based on clouds," which is a concerning sign in clarity grades of VS2 and below. The laser inscription of the report number on the girdle is above the comment section (an optional service for additional verification).Proportions: This chart is the most crucial for assessing the cut of a diamond. Specifically, pay attention to the table percentage (58% in the example - excellent), depth percentage (61.1% - excellent), crown angle (34° - excellent), pavilion angle (40.8° - excellent), girdle (medium, 3.5% - excellent), and culet (none - excellent).Clarity Characteristics: This section will indicate the type of inclusions and their locations. It can assist buyers in avoiding diamonds with visible inclusions at the center. These details are also helpful for matching the report with the diamond, as these inclusions act as the diamond's birthmarks.

How to Read Round Cut GIA Report

When striving to secure the finest diamond within a
 predetermined budget, navigating the intricate interplay of the <a href="https://www.petragems.com/education/how-compromise-diamonds/">4Cs</a>—carat
 weight, cut, clarity, and color—often poses a perplexing challenge for
 shoppers. To aid in addressing this quandary, consider the ensuing four
 scenarios prior to reaching a final verdict:<a href="https://www.petragems.com/round-engagement-rings/"><img src="	https://admin.petragems.com/api/Images/img-1688143945.jpeg" alt="round shape diamond in a swirl engagement ring" width="397" title="round diamond in engagement ring" height="256"></a>

<ol start="1" type="1">
 <li class="MsoNormal">Investment
 Grade (Pinnacle of Quality and Rarity): In this
 range, discerning buyers accord paramount importance to diamonds of
 unblemished clarity (flawless/<a href="https://www.petragems.com/blog/what-is-a-vvs-diamond/">VVS</a>) and colorless attributes (D-E). They
 seek diamonds with&nbsp;<a href="https://www.petragems.com/ideal-cut-diamond-proportions/">ideal proportions</a>, backed by esteemed GIA and AGS
 certifications, and displaying no fluorescence. This category caters to
 those valuing the highest quality and rarity in their diamond selection.</li>
 <li class="MsoNormal">High-Quality
 Large Diamonds (Optimal Value): Within this
 range, purchasers set their sights on diamonds with VS2/VS1 clarity and
 G/H color, coupled with negligible to faint fluorescence. The focal point
 here is securing excellent value by obtaining substantial diamonds that
 don't compromise on quality. Aiming for the most "bang for the
 buck" guides their pursuit.</li>
 <li class="MsoNormal">Striking a
 Balance Between Size and Beauty: This scenario
 sees shoppers in pursuit of the most impressive diamond, while
 concurrently maintaining a threshold of quality. As an illustration, these
 buyers opt for a 1.5 carat diamond instead of a 1 carat variant. For
 instance, they may select a 1.5&nbsp;carat round diamond featuring SI1 clarity,
 I color, medium blue fluorescence, and a very good cut, rather than a
 1 carat diamond with E VVS1 clarity. This approach harmonizes size and
 quality.</li>
 <li class="MsoNormal">Maximizing Size
 on a Restricted Budget: Buyers with limited financial
 leeway emphasize the diamond's size and its radiance, willingly
 accommodating some visible inclusions or a faint yellow tint if the stone
 remains affordable. Their focus may lead them to acquire a 2-3 carat K-M
 color diamond, characterized by inclusions such as non-black carbon
 crystals like feathers near the girdle. Augmented by strong blue
 fluorescence to enhance the color, and a very good to excellent cut for
 optimal luminosity and dispersion, this approach places paramount
 importance on size.</li></ol>

Balancing Round Diamonds 4Cs

Since 1750, round diamonds have undergone several
 changes, particularly in facet size and proportion variations. Ongoing
 modifications occur in the dimensions of a diamond's table, total
 depth, culet, crown, and the length of lower half facets. Nevertheless,
 diamonds from each era exhibit distinct and unique appearances.

Most buyers opt for round brilliant cut diamonds
 as they align with their contemporary aesthetic preferences. Round
 brilliant cut diamonds exhibit a closely-knit play of light and possess dark
 patterns due to their elongated lower half facets, a trait gemologists call "splintery."

Conversely, older cuts like the old European cut feature a
 small table, a prominent culet, a steep crown, and shorter lower half facets,
 resulting in a "blocky" or "checkerboard" pattern.<a href="https://www.petragems.com/education/round-cut-diamonds" target="_blank"><img src="https://admin.petragems.com/api/Images/Picture48.jpg" alt="Round vs. Old European Cut" width="590" height="360" title="round vs. Europeans cut"></a>

The Gemological Institute of America established the cut
 grading system specifically for unmodified round brilliant cut diamonds. To
 distinguish between the earlier iterations and the
 contemporary style, the term "unmodified round brilliant" refers to a
 symmetrical round cut diamond featuring 58 facets that are cut according to modern standards.

While GIA assigns five distinct cut grades (excellent, very good,
 good, fair, and poor) to assess the cut quality of modern round diamond,&nbsp;AGS utilizes six cut grades by incorporating the "ideal
 cut" into the spectrum.

Key Differences between Old European vs. Modern Round Brilliant include:Old European cut 

<ul type="disc">
 <li class="MsoNormal">Lower
 half facet length: 60 percent or less</li>
 <li class="MsoNormal">Table
 size: 53 percent or less</li>
 <li class="MsoNormal">Crown
 angle: 40 percent or greater</li>
 <li class="MsoNormal">Culet
 size: slightly large</li>
</ul>

Round brilliant cut with 58 facets to be
 classified as a modern brilliant cut must adhere to the following criteria:

<ul type="disc">
 <li class="MsoNormal">Lower
 half length: 60 percent or less</li>
 <li class="MsoNormal">Culet
 size: medium or slightly larger</li>
 <li class="MsoNormal">Star
 length: 60 percent or less.</li></ul>

Round Brilliant vs. Old European Cut

The diamond trade has undergone significant evolution in the
 past decade. The internet and the wealth of online information have empowered
 first-time buyers, eliminating the need to rely solely on local retailers for
 acquiring high-quality diamonds at reasonable prices. Instead, they can swiftly
 access diamond prices from various websites, enabling them to determine a
 competitive price range.

To illustrate, determining the cost of a<a href="https://www.petragems.com/blog/how-much-does-a-2-carat-diamond-cost/"> 2 carat round cut</a>
 diamond with VS1 clarity, G color, excellent cut, and no fluorescence graded by
 <a href="https://www.petragems.com/education/gia-vs-ags/">GIA or AGS</a> is now relatively straightforward. Prospective buyers can explore
 prices on platforms like <a href="https://www.petragems.com/james-allen-review/">James Allen</a> and <a href="https://www.petragems.com/blue-nile-review/">Blue Nile</a> to establish a
 reasonable value for the 2 carat diamond. When buying round cut diamonds online, retailers should offer solid return
 options, lifetime warranties, and upgrade policies.
 A brand's reputation carries weight due to quality assurance
 considerations and the enduring support they offer. It might be worth investing
 an additional 5% for this assurance. Furthermore, opt for a seller offering
 complimentary repairs when a stone is dislodged from the mounting or when resizing the ring is necessary. For further insights, refer to our detailed&nbsp;article on the <a href="https://www.petragems.com/education/best-place-to-buy-diamonds-or-engagement-rings-online/">best places to buy diamonds</a>.



Lastly, the popularity of <a href="https://www.petragems.com/education/lab-grown-diamonds/">lab-grown diamonds</a> is on the rise,
 presenting viable budget-friendly alternatives to natural diamonds.

Buying Round Diamonds Online

What characterizes a round cut diamond?

As previously mentioned, round diamonds stand as the most
 prevalent diamond shape. Due to their expansive surface area, they typically
 carry a higher price tag compared to fancy cut stones. Crafting a 1 carat round
 brilliant cut diamond necessitates a larger rough diamond than that required
 for a 1 carat <a href="https://www.petragems.com/education/princess-cut-diamonds/">princess cut diamond</a>.

What are the optimal proportions for a round cut diamond?

Kindly refer to our&nbsp;<a href="https://www.petragems.com/ideal-cut-diamond-proportions/">proportion</a> chart to determine&nbsp;the ideal round cut diamond
 proportions.

What should I emphasize when considering the 4Cs while purchasing
 a diamond?

The four scenarios we've discussed offer valuable insight
 into <a href="https://www.petragems.com/education/how-compromise-diamonds/">prioritizing the 4Cs</a> when seeking a round diamond.

Which certifications hold the highest reliability for
 diamonds?

As previously indicated, GIA and AGS stand out as the best diamond grading labs globally.

How does fluorescence impact a diamond?

To comprehensively grasp the matter of <a href="https://www.petragems.com/education/diamond-fluorescence/">fluorescence</a>, please
 delve into our detailed article on the subject. This is a significant
 consideration, as its effect can be either adverse or advantageous, contingent
 on the diamond's color.

Which shape serves as a viable alternative to round
 diamonds?

An <a href="https://www.petragems.com/education/oval-cut-diamonds/">oval cut diamond</a> presents itself as an exceptional
 substitute for round cut diamonds, owing to their inherent resemblances.

Is purchasing diamonds online a secure option?

Indeed, buying <a href="https://www.petragems.com/diamonds/">loose diamonds</a> online is now notably
 secure. The establishment of a standardized grading system has considerably
 facilitated the process of procuring diamonds online.

FAQ on Round Diamonds

Round cut diamonds, also known as round brilliant cut
    diamonds, account for approximately 60-70%
    of all globally traded polished diamonds, and GIA intro

In-Depth Round Brilliant Cut Diamond Buying Guide

Sharif Khan

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