Peter is a prolific cutter and will be sharing his knowledge regarding the orientation of gemstone rough for color. 2022 USFG Tucson Symposium.
Негізгі бет Peter Torraca - This Side Up: Orienting Rough for Color (Part 1 of 2)
Peter is a prolific cutter and will be sharing his knowledge regarding the orientation of gemstone rough for color. 2022 USFG Tucson Symposium.
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