Singapore Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Instrument Tools - AliExpress

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

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Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Identification Instrument Tools

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

New PRESIDIUM Jewelry Jewellery Jade Crystal Diamond Selector Identification Tester Testing Scanner Pen Tool Gem Detector - AliExpress

Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Identification Instrument Tools

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Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Identification Instrument Tools

Singapore PRESIDIUM Gem Tester II, testing 16 kinds of gems - AliExpress

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Singapore Presidium Colored Gemstone Testers Duo PDT Refractometer Diamond Jewelry Appraisal Identification Instruments Tools

New PRESIDIUM Jewelry Jewellery Jade Crystal Diamond Selector Identification Tester Testing Scanner Pen Tool Gem Detector - AliExpress