Gem Cut Yield Calculator
Estimate expected polished gemstone weight from rough stone weight, shape, and target cut.
Inputs
ct
Results
Polished Weight
1.95 ct
Yield39%
Weight Loss3.05 ct
Loss61%
Rough ShapeOctahedron
Target CutRound Brilliant
SawingYes - saw to maximize yield
How to Use This Calculator
- Enter the Rough Weight in carats and select the Rough Shape (octahedron, macle, irregular, crystal fragment).
- Select the Target Cut (round brilliant, oval, emerald cut, pear, or cushion).
- Select the Inclusion Level (clean, minor, or significant inclusions).
- Review the estimated Yield Percentage and Polished Weight in carats from the rough.
- Use the yield to calculate minimum rough value needed for profitable cutting.
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