Herkimer Diamond Raw Cut Ring

This mineral owes its name to Herkimer County, New York, USA, the principal place where it is found. The small, double-terminated crystals are short and stubby, formed in a hard rock matrix giving them their strength. They may be exceptionally clear and colorless or contain rainbow inclusions, air bubbles, or black carbon deposits. A small percentage of these crystals contain enhydro inclusions of water. Some are smoky rather than clear, and similar-looking crystals have been found at other sites, but generally do not have the same hardness or high gloss of genuine Herkimer Diamonds.