Colors Gemstone Tester PRESIDIUM Gem indicator PGI

Presidium Gem Indicator (PGI)

MUST READ INSTRUCTIONS BEFORE USING | Presidium is available for any troubleshooting assistance THINNEST RETRACTABLE PROBE TIP | Retractable

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones

Presidium Gem Tester II (pgt II)

Presidium Gem Indicator Calibration Disk Replacement for Reliable Testing

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

Micrometer from 0 to 10 MM watch

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

Diamond and Gemstones Tester