Presidium Gem Tester II (PGT II) - Testing Ruby, Diamond, Sapphire, Gemstone, Peridot

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Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones : Arts, Crafts & Sewing

💎 Blue 💎 sapphire 💎 engagement 💎 ring 💎 with 💎 pearshape 💎 diamond 💎

PRESIDIUM マルチテスター III ダイヤモンドテスター

How to Calibrate Presidium Gem Tester ii (PGT II)

The DuoTester II combines the Presidium Reflectivity Meter and the Presidium Gem Tester/Colored Stone Estimator into one convenient identifying

Presidium DuoTester II

Presidium Duo Tester II Assisted Thermal Calibration & Comprehensive Gemstone Testing

Presidium DuoTester w/o Diamond SImulants

Gem Tester II: Quick Diamond/Moissanite Identification & Colored Gemstone Separation

Set of 5 Topaz From Brazil VS in 4 Mm 1.70 Carat

PRESIDIUM マルチテスター III ダイヤモンドテスター

Testing Jewelry with the Presidium Gem Tester II

PRESIDIUM マルチテスター III ダイヤモンドテスター

M&M Merchandisers - GemOro #0770 Testerossa Tutorial & Tips