February 2-4—TUCSON, ARIZONA: Show and sale; United States Faceters Guild; Old Pueblo Lapidary Club, Thu. 10-5, Fri. 10-5, Sat. 10-9; A great event to learn Faceting, or hone your skills, presentations on dopping, heating, using software, stone evaluation, machine demonstration, door prizes, stone competition, and the Faceters Hob Nob to finish it off Saturday night
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 Post subject: CIBJO's Guide for Natural and Cultured Pearls
PostPosted: Sat Dec 03, 2022 1:22 pm 
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CIBJOs Guide for Classifying Natural and Cultured Pearls
https://www.cibjo.org/wp-content/upload ... -Guide.pdf



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