Carat Weight. Given the cut and
dimensions of a stone, estimate its weight in Carats.
Optimized on over 1,000 individual
gemstones. A full 300 stones to choose from. All
measurements in mm and Carats.
Stone Identification.
Given the dimensions and the weight, we estimate the specific gravity of
your stone and produce a guess at its identity. All measurements in mm and
Carats.
Notes
1
This uses the relatively
crude Standard Formula, with larger
indicated uncertainty than on other cuts. You need only enter the basic
Measurements and Belly Shape.
2
Square cushion. Enter
corner & belly measurements as Length and Width. Also uses the Standard
Formula. You need only enter the basic Measurements and Belly Shape.
3
Side Shape. Enter curvature
of sides, used only for Pear and Heart cuts (so far).
4
Cabochon, Spheroid and
Octahedron. You need only enter the basic Measurements.
