Gem Tester Gemstone Tester for All Stones 22×11×8 Rhg181 1.30-1.81 Professional Gemstone Ldentification Gem Refractometer

Specification: Condition: 100% Brand New Item Type: Refractometer Material: ABS Refractive Index Range: 1.30-1.81 RI Color: As Pictures Shown Size

Presidium PGT-CSE Gem Tester & Colored Stone Estimator

Gem Refractometer, Professional High Accuracy Jewelry Gem Refractometer Quick Identification 1.30 to 1.81 Measuring Range, Jewelry Refractometer for Identifying and Authenticating Polished Gems : Industrial & Scientific

Diamond Tester, Portable Electronic Diamond Tester for Diamond

Jewelry Refractometer, 1.30 to 1.81 Professional Gemstone

Presidium Instruments Gem Tester II (PGT II) with

Gemstone Portable LED Flat Light Presentation Coloured Stone Professional Jewelry Identification Tools

This tester is designed to distinguish diamond, moissanite from other fake stones quickly. It has a fine elastic tipped probe for testing and able to identify stones as small as 2pt.

High Accuracy Professional 2pt Jewel Stone Combo Gem Jewelry Jeweler Tester Test Selection Tool Kit Selector Meter Device for Diamond Moissanite Metal

Diamond & Gem Testers – SEP Tools

Yieryi Gem Instrument Gem Tool Gem Refractometer Diamond Detector

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Handheld Heavy Duty Calcite Dichroscope, Trichoic Gem & Gemstones Gemological Testing, 15mm Diameter Gemologist - AliExpress