This handy gauge allows you to estimate the weight of all popular shapes of diamonds without removing the stone from the mounting. The only caliper gauge that reads round, emerald, pear and marquis shaped diamonds. Made of steel etched with clear numbers. Styled after the original "Jo-Di" gauge, diamond weight is estimated by measuring the girdle of the stone, then using the conversion booklet.
- Diamond weight gauge
- Measures from 0-60mm
- Gauge size 4-3/8" x 2-1/4" x 3/16"
- Booklet size 5-5/8" X 3" X 0.5" Inches