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CARAT CALCULATORS
Java Script must be enabled in your Web brouser to use the following calculators.

To accurately measure a gemstones weight there is no substitution for a precision scale.
Enter weight in grams:
= carats

Below is a calculator designed to estimate the weight of a gemstone using the gemstone type, cut, and the three dimensions (length, width, and depth). Please keep in mind, the Carat Estimator is only meant to be used as a reference tool to estimate a gemstones weight. It is not a precision instrument and should not be used as such. The results are only an estimate, not the exact weight, so expect to see some variability from the actual weight.

Carat Estimator
All fields must be filled!
Select from dropdowns.
Type:
Cut:
Enter length, width and depth in millimeters.
Length: mm
Width: mm
Depth: mm
Weight = carats
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