Carat Weight Calculator

Gemstone weight calculation tool. Gem Carat Weight Calculator allows fast, accurate weight calculations to be done by taking a few simple measurements for kinds of crystals. By combining industry accepted formulae, proprietary gemstone and facet / cut data, we bringing to you an accurate calculations. Shapes to choose from: Cabochon Cut, Emerald,Marquise,Oval, Pear, Rectangular Cushions, Rectangular Faceted, Rectangular Step Cut, Round Faceted, Square Cushions, Square Cut, Square Step Cut. And also Alexandrite, Black Opal, Citrine, Diamond, Goshenite, Jade and 80!! more