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Herkimer Diamond Collection
Herkimer diamonds are not actually diamonds but double terminated quartz crystals discovered within exposed outcrops of dolomite in and around Herkimer County, NY, and the Mohawk River Valley. The "diamond" in their name is due to their incredible clarity and natural faceting.
Herkimer diamonds became widely recognized after workmen discovered them in large quantities while cutting into the Mohawk River Valley dolomite in the late 18th century. Geologists discovered exposed dolomite in Herkimer County outcroppings and began mining there, leading to the "Herkimer diamond" moniker. Double-point quartz crystals may be found in sites around the world, but only those mined in Herkimer County can be given this name. All of the stones used in our Herkimer Diamond Collection are AAA quality stones mined right in Herkimer county, NY.