Colored Gems Weight Estimation Tables

 Weight Estimation Tables for Colored Gems

To obtain approximate weights of the following shapes of colored stones multiply by the following measurements to millimeters. A listing of the specific gravities is below.

Round Faceted = ...................Diameter x diameter x depth x SG x .0018 Oval Faceted = .......................Diameter x diameter x depth x SG x .0020 Emerald Faceted = .................Length x width x depth x SG x .0025 Rectangle Faceted = .............Length x width x depth x SG x .0026 Square Faceted = ...................Length x width x depth x SG x .0025 Marquise Faceted = ...............Length x width x depth x SG x .0017 Pear Faceted = ........................Length x width x depth x SG x .0018 Heart Faceted = ......................Length x width x depth x SG x .0018