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Founder's Guide: Tips, Tricks, & Expert Knowledge

Custom jewelry design sketches, technical CAD blueprints, opal pendant necklaces, diamond eternity bands, and loose gemstones on a design desk at Motek Jewelry in Airmont NY

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Opal & Tourmaline Care: Setting Physics & Loose Stones | Motek Jewelry

By Bentzion YOctober 21, 2026

Discover the optical science, mineral physics, and setting mechanics of October's birthstones—Opal and Tourmaline. Learn how bench jewelers secure loose stones and retip prongs at Motek Jewelry in Airmont, NY.