Herkimer Diamond Quartz Crystals A / A+ Grade 10mm - 12mm | 2 Gram Lot (3 - 4 crystals)

Herkimer Diamond Quartz Crystals Please read for all details : Grade : A / A+ - Minor inclusions and imperfections. Weight : 2 Gram Lot Size : 10mm - 12mm each Approx 3 - 4 crystals per lot These were mined at HDM in Middleville NY These rare double terminated quartz come from right here in Central NY. We live 1 hour from the mines and work closely with our independent mine sources to get the best crystals available. IVC has been one of the premier sources for these crystals since 2006. Gem Crystals (A, A+ or AA grade) over 1/2" (12.5mm) are very rare, even rarer at 1" in size with good clarity, 2"+ clear is rarely seen. Optical Clarity is rare especially single crystals with no contacts or attached crystals.   Help with Measurements  : 1" = 25mm = 2.5cm             1 lb / pound = 453 grams 1/2" = 12.5mm                     1 g / gram = 5 carats 1/4" = 6.35mm                     1 ct / carat = 0.20 grams Most stones are measured in Grams & mm (Millimeters). Please use t