Presidium Electronic Refractive Index Meter II Southwestern This is a new #2

This is a new #2 cut Valtitan half round ring hand file

Dependable for automated operations

Each measures approximately 3 x 3 mm (1/8" x 1/8")

White zircon is the birthstone for April

Presidium Electronic Refractive Index Meter II Southwestern This is a new #2Presidium Electronic Refractive Index Meter II DESKTOP DIGITAL TESTER THAT USES REFRACTIVE INDEX TO QUICKLY SEPARATE GEMSTONES, DIAMONDS, MOISSANITES AND OTHER DIAMOND SIMULANTS. BY MEASURING THE QUANTITY OF LIGHT REFLECTED THROUGH THE STONE, THE PRESIDIUM REFRACTIVE INDEX METER II (PRIM II) IS ABLE TO SEPARATE DIAMONDS, MOISSANITES AND OTHER COLORED GEMSTONES VIA THE REFRACTIVE INDEX (R. I) OF THESE POLISHED GEMSTONES. UNLIKE A TRADITIONAL