The Jo-Di Gauge can be used with all popular shapes of diamonds – without removing the stone from the mounting!
This is the only millimeter caliper gauge that “reads” round, emerald, pear and marquise-shaped diamonds.
The unit is made of anodized black aluminum, with easy-to-read numbers and large-type tables. This set comes with gauge, reference book, and case.
WARNING!
Cancer, Reproductive Harm and Birth Defects – www.P65Warnings.ca.gov
