A nifty easy-to-use analog gauge for measuring gemstone dimensions with ability to convert to estimated carat weight for round brilliant diamonds (up to 29 carats), so no need to dismount your mounted diamonds! Also able to give US ring size.
Presidium Dial Gauge measures from 0.0 to 23.0mm in 0.1mm divisions. It features an easy-to-read millimeter and carat scale, and is only dial gauge in the industry that combines dual measurements for gemstones in millimeters with corresponding carat conversion for round brilliant-cut gemstones.
It also contains an inner scale display for US ring size measurements.
Manufactured to the highest quality and features a patented anvil with a non-metallic lubrication-free rack and pinion technology that resists wear and tear and maintains its precision and accuracy.
Jewelry Pin Attachment is supplied with original product in carrying case.
Product comes with 1-year warranty.
No batteries needed.