• 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

American Ideal Cut corresponds to Superb Ideal Cut

Corresponds to approximately 16% of the top diamond quality based on cut. The range for the proportions as defined by the American Gem society: Table Diameter: 52.4% to 57.5%, Crown Angle: 33.7 degrees to 35.8 degrees, Girdle Thickness: Thin to Slightly Thick (.51% to 2.95%), Pavilion depth percentage: 42.2 % to 43.8%, Culet: (Pointed) None, Very small to Medium, Total Depth: 58.7% to 62.3%.Noting good symmetry and polish. These percentage ranges justify the beauty and quality of the diamond. An Ideal American cut will reflect nearly all light and is truly a top quality, striking and highly prized cut.

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