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Diamond Proportions Hearts & Arrows Ideal Cut American Ideal Cut International Fine Trade Cut American Average Cut or Average Cut Below Average Cut AGA Round Diamond Proportions chart AGA Princess Diamond Proportions chart AGA Pear, Heart, Oval, Marquise Diamond Proportions Chart AGA Emerald & Radiant Diamond Proportions Chart Marcel Tolkowsky AGS Proportions Charts for Brilliant Cut

Diamond Shapes | Diamond Weight | Diamond Proportions | Diamond Color | Diamond Clarity Interesting Diamonds facts AGA Accredited Gem Appraisers Cut Grading Chart for Round Brilliant Cut   Hearts & Arrows Ideal Cut American Ideal Cut International Fine Trade Cut US domestic Average Cut Below Average Cut Cut classes Phenomenon Class 1A Class 1B Class 2A Class 2B Class 3A Class 3B Class 4A Class 4B Table, % 53%-63% are weght specific in 1A, 1B, 2A grades <=.49ct <=.49ct <=.49ct <=.49ct all weights all weights all weights all weights all weights 53-57.5 53-59 59.1-62 52.9-52 62.1-63 51.9-51.5 63.1-64 51.4-51 64.1-67 50.9-50.5 67.1-70 50.4-50 70.1-72 49.9-49 >72 <49 >=.50ct >=.50ct >=.50ct >=.50ct 53-58 53-58 58.1-60 52.9-52 60.1-63 51.9-51.5 Crown angle, ° 34.3-34.7 34.3-34.7 34-34.2 34.8-35 32.1-33.9 35.1-35.8 31.6-32 35.9-36.4 31.5-30.1 36.5-37.9 29.6-30 38-39.4 29-29.5 39.5-40.5 <29 >40.5 Crown height, % <=.49ct <=.49ct <=.49ct <=.49ct all weights all weights all weights all weights all weights 14-16.3 14-16.3 12.8-13.9 or 16.4-16.8 11.6-12.7 or 16.9-17.9 11.1-11.5 or 18.0-18.1 9.6-11 or 18.2-19.3 8.5-9.5 or 19.4-20.5 7.8-8.4 or 20.6-21.8 <7.8 or >21.8 >=.50ct >=.50ct >=.50ct >=.50ct 14.3-16.3 14.3-16.3 13.5-14.2 or 16.4-16.8 11.6-13.4 or 16.9-17.9 Pavilion Depth, % 42.8-43.2 42.8-43.2 42.5-42.7 43.3-43.5 42-42.4 43.6-44 41.5-49 44.1-44.9 41-41.4 45-45.5 40.5-40.9 45.6-46 38-40.4 46.1-48 <38 >48 Girdle Thikness, % Word description and percentages Thin, Medium, Slightly thick 1.7-3 Slightly thin to slightly thick 1.5-4.5 Thin to slightly thick 1-4.5 Thin to thick 1-5.5 Very thin to very thick 0.4-7 Extra thin to extra thick 0-7 Total Depth, % Determined by factors already considered above 58.7-62.3 58.7-62.3 58.3-58.69 62.31-62.99 57.9-58.29 63-63.5 57.5-57.89 63.51-63.8 57-57.46 63.81-64.1 56.5-56.99 64.11-65 55-56.49 65.1-67 <55 >67 Polish/Symmetry Excellent Excellent or Very Good Excellent to Good Good or Fair Poor Stock Diamond Search 80 000 Diamonds online Negotiable prices Just Ask!

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