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Presidium Instruments Gem Tester II (PGT II) Now With Assisted Thermal Calibration (ATC) For Identifying Diamonds/Moissanites And Common Colored

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Rs Mizar Replacement Chemical Kit For M-24 Gold Tester

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Sigma Metalytics Precious Metal Verifier Investor-Case, Warranty, Free

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The Sigma Metalytics Precious Metal Verifier PMV Investor Full Small, Large, And Bullion Wands

Jsp Gold Silver Acid Testing Kit Electronic Scale Diamond Sapphire Tester Magnet

Gold Acid Testing Kit + Electronic Diamond Tester Checker + Digital Test Scale

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Grobet Electronic Professional Gold Tester, No. 56.762