Select
Gemstone -------------------------- Diamond Ruby Sapphire Emerald Tanzanite Aquamarine Spinel Morganite Topaz Amethyst Citrine Rhodolite Almandine Spessartite Pyrope Andalusite Chrysoberyl Demantoid Hessonite Peridot Tourmaline Spodumene Alexandrite Moissanite Apatite Benitoite Grossular Iolite Kunzite Zircon Zoisite Beryl
Gem Cut -------------------------- Round Brilliant Oval Rect Cushion Square Cushion Rect Emerald Square Emerald Square Baguette Pear Marquise Heart Triangle

Measurements

Diameter *

or

Length
Width

and

Depth

Variables
Girdle Thickness -------------------------- Slightly Thick Thick Very Thick Extremely Thick
Pavilion Bulge -------------------------- Slight Noticeable Obvious Extreme

Estimated Weight

*Some rounds are very slightly oval. Add the 2 most extreme measurements then divide by 2.
Choose your mounting by mm size not carat weight.