Gem Estimator Sizer Gauge

The diamond weight estimator is perfect for determining the size of loose or unmounted stones when other methods are unavailable. This estimator works for emerald, marquis, pear, round and baguette stones, as well as brilliant full cuts. Simply lay the gem estimator on your stone pad and place the diamond in question on the appropriate outline, and you will be able to instantly tell the approximate weight of your stone.