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Gem Tester II: Quick Diamond/Moissanite Identification & Colored Gemstone Separation
Presidium Electronic Gemstone Computer Gauge PGCG Measure Loose Diamond Mounted Jewelry Estimate Weight Accuracy 0.01mm - AliExpress
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Gem Polishing Machine Children's Electric DIY Stone Polishing Machine Physical Science Experiment Set Test Toy - AliExpress
Smart Pro Gem Eye I Diamond Tester / Jade Treasure Hardness Test Professional Efficient Gemstone Detector
Singapore Presidium Synthetic Diamond Screener SDS II Colorless Diamond Tester CVD HTHP Type IIa Lab Created Jewelry Instrument
New PRESIDIUM Jewelry Jewellery Jade Crystal Diamond Selector Identification Tester Testing Scanner Pen Tool Gem Detector - AliExpress
Singapore Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Instrument Tools
Presidium Refractive Index Meter II
Singapore Presidium Colored Gemstone Testers Duo PDT Refractometer Diamond Jewelry Appraisal Identification Instruments Tools