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You are here: Home / Books / ID of Transparent Red, Pink, and Purple Gems with Portable Instruments

ID of Transparent Red, Pink, and Purple Gems with Portable Instruments

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Authors: Branko Deljanin and John Chapman, 2019

This guide is for wholesalers, gemologists, jewelers and appraisers to be used as a quick reference for portable standard instruments to separate red, pink and purple transparent natural and synthetic gems using four portable in-expensive instruments: 1. 10x Loupe. 2. PL-Inspector/Jewellery Inspector 3. Portable polariscope 4. Spectroscope.

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Gemmological Research Industries Inc. is a consulting company that specializes in the identification, grading and evaluation of gem quality rough, polished and mounted diamonds, gems, research and training of all segments of jewellery industry.

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