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This book guides you through all aspects of the world of gems
A complete set for making four
High-performance formula for scratch-free finishing
MINI polishing machine is complete of lighting with protective anti-failure shield
Destiné aux professionnels du secteur – diamantaires
Presidium Gem Tester II Pliers & Shears This book guides you throughPresidium Gem Tester II Identify Diamonds & Colored Gemstones with Confidence The Presidium Gem Tester II (PGT II) is a trusted tool for jewelers, gemologists, and enthusiasts, offering a fast and reliable way to identify diamonds, moissanites, and distinguish up to 16 common colored gemstones based on thermal conductivity. Ruby, sapphire, emerald, garnet, amethyst, citrine, tourmaline, topaz, spinel, alexandrite, peridot, tanzanite, zircon,