Brilliant Cut
Round diamonds are the most popular choice for Engagement Rings. Round Diamonds most efficiently manipulate light and therefore have the ability to provide the most shine and brilliance. A diamond's brilliance is determined by the way light behaves when it enters the top of the diamond. An excellent cut diamond will reflect all of the light that enters a diamond and provide the most shine and brilliance possible.
If a diamond is too shallow, a portion of the light will leave through the bottom of the stone and if the diamond is too deep, the light will be refracted out the side of the stone. This is why it is important to chose a diamond with a proper depth percentage to ensure brilliance.
Round diamonds are classified as excellent, ideal, very good, fair, and poor.
An excellent cut is the highest grade a diamond can receive from the Gemology Institute of American or GIA. Excellent Cut Diamonds have optimal proportions and give the most brilliance and light return.
An ideal cut diamond meets the most stringent requirements from the GIA. The diamond reflects all the light and returns the most brilliance possible.
A very good cut diamond has depth and table percentages that fall just outside the "ideal" requirements set by the GIA. This diamond returns almost all the light and is similar to an ideal cut diamond. A very good cut diamond will sell for less than an ideal cut diamond yet possess very similar characteristics
A good cut diamond reflects most of the light that enters it. A good cut diamond gives you good brilliance and will sell at a much lower price than an ideal or very good cut diamond. "Good" cuts are popular choices for engagement rings.
A fair cut diamond reflects a decent amount of light and will sell for much less than an ideal or very good cut diamond. A fair cut is a popular choice for people who want a decent cost savings to purchase a larger stone.
Suggested Guide for evaluating Diamond Cut
EXCELLENT CUTS FOR ROUND BRILLIANT CUT DIAMONDS [ranges taken from a sampling of over 10,000 diamonds]
Depth... 59.1% to 62.7% [Ideal 60% to 62.9%]
Table... 53% to 61% [Ideal 53% to 57%]
Girdle Thickness... thin, medium or slightly thick
Symmetry... excellent or very good
Polish... excellent or very good
Culet Size... none, very small or small
VERY GOOD CUTS FOR ROUND BRILLIANT CUT DIAMONDS
Depth... 58% to 64%
Table... 52% to 63%
Girdle Thickness... very thin, thin, medium, slightly thick or thick
Symmetry... excellent, very good or good
Polish... excellent, very good or good
Culet Size... none, very small, small or medium
GOOD CUTS FOR ROUND BRILLIANT CUT DIAMONDS
Depth... 57.7% to 64.2%
Table... 55% to 66%
Girdle Thickness... extremely thin, very thin, thin, medium, slightly thick, thick or very thick
Symmetry... excellent, very good, good or fair
Polish... excellent, very good, good or fair
Culet Size... none, very small, small, medium, slightly large or large
FAIR CUTS FOR ROUND BRILLIANT CUT DIAMONDS
Depth... 55.5% to 71%
Table... 54% to 67%
Girdle Thickness... extremely thin, very thin, thin, medium, slightly thick, thick, very thick or extremely thick
Symmetry... excellent, very good, good, fair or poor
Polish... excellent, very good, good, fair or poor
Culet Size... none, very small, small, medium, slightly large, large or very large
POOR CUTS FOR ROUND BRILLIANT CUT DIAMONDS
Depth... 50.8% to 79% [can exceed these limits]
Table... 53% to 70% [can exceed these limits]
Girdle Thickness... extremely thin,very thin,thin, medium, slightly thick, thick, very thick or extremely thick
Symmetry... excellent, very good, good, fair or poor
Polish... excellent, very good, good, fair or poor
Culet Size... none, very small, small, medium, slightly large, large, very large or extremely large
About the Author:
Eric is a diamond engagement ring expert with Since1910.com. As a fifth generation jewelry store with over 99 years of experience, we provide expert diamond guidance. We are members of the Prestigious American Gem Society, Jewelers Vigilance Committee, Better Business Bureau and Retail jewelers of America.
Article Source: ArticlesBase.com - Round Brilliant Diamonds and Evaluating Diamond Cut
Collecting American Brilliant Cut Glass Pitchers
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18K gold filled diamond brilliant cut crystal solitaire engagement ring Sz7/O $0.99 |
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2.20 F SI1 ROUND BRILLIANT CUT DIAMOND ENGAGEMENT RING 18K WHITE GOLD $5,235.00 |
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Classic 18K gold filled diamond brilliant cut crystal solitaire lady ring Sz6/M $0.99 |
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18K gold filled black diamond brilliant cut crystal solitaire woman ring Sz9/R $0.99 |
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2.01 F SI1 ROUND BRILLIANT CUT DIAMOND ENGAGEMENT RING 14K WHITE GOLD $5,359.00 |
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18K Solid Yellow Gold .20 CARAT ROUND BRILLIANT-CUT DIAMOND Ring -size 10 $469.95 |
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Antique ABP American Brilliant Cut Glass Butter Dome $275.00 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $21.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $21.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $21.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $21.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $21.99 |
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"Heart Strings" 14kt White Gold and Brilliant Cut Diamond Heart Pendant $333.00 |
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2.32 Carat Brilliant Round Cut Diamond Loose Gem Stone SI3 H-I $16,995.00 |
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18K gold filled diamond brilliant cut peridot solitaire engagement ring Sz9/R $0.99 |
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2.17ct Round Brilliant Cut Diamond Engagement Anniversary Ring $10,495.00 |
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1.01ct Round Brilliant Cut Diamond Engagement Anniversary Ring $10,995.00 |
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GIA CERTIFIED 1.51Cts VS1 N European Brilliant Cut Diamond Loose $5,100.00 |
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Crystal Bowl / Faux Brilliant Cut / Vintage $5.95 |
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2.70 E VS2 PRINCESS BRILLIANT CUT DIAMOND ENGAGEMENT RING 14K WHITE GOLD $15,164.00 |
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BRILLIANT CUT SIMULATED DIAMOND SOLITAIRE STUD EARRINGS 0.50C $5.50 |
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7.44ct Round Brilliant Cut Diamond Engagement Anniversary Ring $79,950.00 |
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1.00 F VS2 PRINCESS BRILLIANT CUT DIAMOND ENGAGEMENT RING 14K WHITE GOLD $1,699.00 |
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2.52 CT BRILLIANT CUT SIMULATED DIAMOND WORLD'S FINEST GEMS AT WHOLESALE PRICES $175.00 |
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LOT OF 13 LOOSE BRILLIANT CUT DIAMONDS * MELEE * 1.34 CARAT $170.50 |
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1 CARAT**EMERALD & BRILLIANT CUT** WEDDING ENGAGEMENT RING 18K GP CZ Size 8 $8.75 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $22.49 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $22.49 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $22.49 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $22.49 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $22.49 |
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Sterling Silver Brilliant Cut CZ Ring Emerald Color $21.99 |
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Sterling Silver Brilliant Cut CZ Ring Emerald Color $21.99 |
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Sterling Silver Brilliant Cut CZ Ring Emerald Color $21.99 |
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Sterling Silver Brilliant Cut CZ Ring Emerald Color $21.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $20.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $20.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $20.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $20.99 |
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Sterling Silver Brilliant Cut CZ Solitaire Bridal Ring $20.99 |
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4.88ct Fancy Light Brown Round Brilliant Cut Diamond Engagement Anniversary Ring $19,975.00 |
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nr original 1920s platinum vtg antique 18ct gold brilliant cut diamond deco ring $201.21 |
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3 ABP American Brilliant Cut Glass Finger Bowls~Strawberry Diamond (GW2) $65.00 |
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1.35ct Round Brilliant Cut Diamond Band $3,295.00 |
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1.63 H VS2 PRINCESS BRILLIANT CUT DIAMOND ENGAGEMENT RING 14K WHITE GOLD $4,656.00 |
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35Ct. BRILLIANT NATURAL ROYAL GREEN COLOMBIAN EMERALD PRECIOUS PEAR CUT GEMSTONE $6.00 |
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Titanium Engagement ring with Brilliant Cut CZ 0.85 Ct. $99.00 |
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Antique Brilliant Cut Glass Shaped Compote 19/20C $144.99 |
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ABP Brilliant Cut Glass Ice Cream Tray Harvard Daisy $97.97 |
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1 Carat G SI Natural Certified Excellent Cut Round Brilliant Loose Diamond $1,515.00 |
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NEW 1/2 ct. Blue I1 Round Brilliant Cut Diamond Earring Studs in 14K White Gold $202.75 |
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LOT OF 2 MATCHING LOOSE BRILLIANT CUT DIAMONDS 0.06 CARAT EACH 0.12 TDW VS / F-G $40.00 |
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LOT OF 4 MATCHING LOOSE BRILLIANT CUT DIAMONDS 0.07 CARAT EACH 0.28 TDW VS / F-G $41.99 |
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.96 Carat ROUND BRILLIANT CUT E SI2 LOOSE DIAMOND $1,649.00 |
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1 CARAT**EMERALD & BRILLIANT CUT** WEDDING ENGAGEMENT RING 18K GP CZ Size 9 $9.00 |
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LOT OF 4 MATCHING LOOSE BRILLIANT CUT DIAMONDS 0.03 CARAT EACH 0.12 TDW VS / F-G $0.06 |
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14K White Gold Round Brilliant Cut Diamond Engagement Ring. $899.00 |
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LOT OF 4 MATCHING LOOSE BRILLIANT CUT DIAMONDS 0.04 CARAT EACH 0.16 TDW VS / F-G $9.50 |
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LOT OF 5 MATCHING LOOSE BRILLIANT CUT DIAMONDS 0.06 CARAT EACH 0.30 TDW VS / F-G $24.02 |
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Antique American Brilliant Cut Glass Trumpet Vase w/ Sunflowers $104.99 |
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14K White Gold 1.12 Carat Round Brilliant Cut DIAMOND Solitaire Engagement Ring $5,995.00 |
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ABP American Brilliant Cut Tazza Compote TALL 1/2" Thik $124.99 |
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BRILLIANT1.81 Ct. Oval Cut 8*6 Natural Gemsotne Top Crimson Rose Red Ruby $7.99 |
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4 Ct. Round Brilliant Cut Moissanite Classic 4 Prong Solitaire Ring - 14KTT Gold $1,695.00 |
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WOMEN FASHION BRILLIANT-CUT BRIDA&ENGAGEMENT&WEDDING CZ RINGS SIZE 7 $16.95 |
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Ladies 10K Yellow Gold Ring with 60 Brilliant Cut Diamonds 2 TCW $495.00 |
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Sterling Silver Brilliant Cut 3 Stone CZ High Polished $19.99 |
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Sterling Silver Brilliant Cut 3 Stone CZ High Polished $19.99 |
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Sterling Silver Brilliant Cut 3 Stone CZ High Polished $19.99 |
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Sterling Silver Brilliant Cut 3 Stone CZ High Polished $19.99 |
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Sterling Silver Brilliant Cut 3 Stone CZ High Polished $19.99 |
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.75 CT Round Brilliant Cut Diamond Engagement Solitaire Ring 18k Yellow Gold $1,200.00 |
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THICK BRILLIANT CUT CRYSTAL - 4 PART SERVER TRAY HANDLE $35.99 |
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THICK BRILLIANT CUT CRYSTAL - OBLONG DISH $24.99 |
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American Brilliant Cut Glass Bowl Gorham Sterling Rim $275.00 |
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1.93ct Round Brilliant Cut Diamond Engagement Anniversary Ring $14,495.00 |
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2.40 CT ROUND BRILLIANT CUT GENUINE DIAMOND ENGAGEMENT RING SOLID WHITE GOLD $4,730.00 |
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1.06 Ct. Round Brilliant Cut Diamond Stud Earrings $1,970.00 |
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1.03 Ct. Round Brilliant Cut Diamond Stud Earrings $2,080.00 |
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0.94 Ct. Round Brilliant Cut Diamond Stud Earrings $1,775.00 |
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1.01 Ct. Brilliant Round Cut Diamond Stud Earrings 14K $2,100.00 |
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3.06 Ct. Round Brilliant Cut Diamond Stud Earrings $12,185.00 |
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4.05 Ct. Round Brilliant Cut Diamond Stud Earrings $24,330.00 |
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3.58 Ct. Round Brilliant Cut Diamond Stud Earrings $20,205.00 |
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2.16 Ct. Round Brilliant Cut Diamond Stud Earrings $6,415.00 |
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3.21 Ct. Round Brilliant Cut Diamond Stud Earrings $11,485.00 |
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1.60 Ct. Round Brilliant Cut Diamond Stud Earrings $3,685.00 |
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1.73 Ct. Round Brilliant Cut Diamond Stud Earrings $4,370.00 |
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1.85 Ct. Round Brilliant Cut Diamond Stud Earrings $4,930.00 |
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1.51 Ct. Round Brilliant Cut Diamond Stud Earrings $3,120.00 |