Gain Express JEM-II Diamond Tester with Ultraviolet (UV) Light

This diamond selector remains unresponsive to materials like imitation crystals, or simulants like cubic zirconia, moissanite, and lab-grown diamonds, upon contact with the surface. It is the easiest answer for the vast majority of retail jewelers, pawn brokers, and chain stores when faced with the decision of which diamond selector to buy.

Do diamonds shine in the dark? - Quora

GAIN EXPRESS Handheld DIAMOND TESTER with UV Ultraviolet Light

Will A Lab-created Diamond Pass A Diamond Tester? - Diamond101

This gems testing tools are designed for quick, precise, and safe diamond testing. Battery Tester / Checker. Brake Fluid Tester. Water Quality Tester.

PROBADOR DE DIAMANTES SELECTOR MOISSANITA Probador de luz ultravioleta UV JEM-II + JEM-III

JEM-II Gain Express Diamond - GEM STONE PHilippines

JEM-II Diamond Tester with Ultraviolet (UV) Light – Gain Express

Vacuum-Ultraviolet Photon Detections - ScienceDirect

JEM-II Gain Express Diamond - GEM STONE PHilippines

5 Ways to Tell if a Diamond is Real - wikiHow