Gemstone Weight Calculator
Estimate carat weight from measurements (mm) and specific gravity, using the standard formula: Weight (ct) = L × W × D × SG × Shape Factor.
Looking for natural, certified gemstones?
Shop Natural GemstonesEstimate carat weight from measurements (mm) and specific gravity, using the standard formula: Weight (ct) = L × W × D × SG × Shape Factor.
Looking for natural, certified gemstones?
Shop Natural Gemstones