Presidium Gemstone Dial Gauge PDG Bangle Twelve 3/8" double shoulder spring

Twelve 3/8" double shoulder spring bars

9 cm x 25 mm)

This is a new #0 cut equalling hand file

The number 6 can be used as 9

Presidium Gemstone Dial Gauge PDG Bangle Twelve 3/8" double shoulder springA 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), without the need to dismount your mounted diamonds! The PDG also has an inner scale display for US ring size measurements. Measures from 0. 0 to 23. 0mm Accuracy: 0. 1mm Tolerance: 0. 02mm with simple zero realignment Analog gauge with mm ct ring size display Patented anvil Smooth slider