Gem Refractometer Gemology Gemologist RGM-100 w/ 789nm Flashlight RI 1.800 Ade Advanced Optics 0% 0

0%                   0

not plastic like some other units in the marketplace

a User's Guide in a foam-lined hard case

aka Blue/Green Spinel (1

Range: 0 to 100

Gem Refractometer Gemology Gemologist RGM-100 w/ 789nm Flashlight RI 1.800 Ade Advanced Optics 0% 0Item Description: RGM 100 Portable Gemological Refractometer with a flashlight COMES WITH 10 Gram Vial (1. 8ml) of 1. 800 Index Fluid Comes with instructions! Written by our staff, not converted from another language! Comes with a Gemstone Refractive Index Chart! Comes in a black zipper case! Product Specs: Measuring Range : 1. 30 1. 81 RI Minimum Graduation : (RI) 0. 01 RI Dimension : 125mm x 70mm x 40mmScale Division : 0. 01 nD Weight : 0. 4 kg