Used in this jewelry, were hand harvested by myself in. And are GUARANTEED to be AUTHENTIC Herkimer Diamond Quartz. The AAA Flawless Herkimer Jewel is Set in a. There is a manufactuer stamp to certify this. It is a Kabana brand, very elegant, quality designed 14 Karat Gold solitare ring.The Authentic, Hand Dug Herkimer Diamond Quartz, was professionally faceted with a "Round Brilliant" cut. A elegant ring box is included with the ring, as well as a free raw herkimer crystal. The item "Genuine 2.5 Carat Herkimer Diamond set in a PURE 14K YELLOW GOLD RING (Size 7)" is in sale since Monday, November 27, 2017. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Diamond". The seller is "the_north_east_mineral_exchange" and is located in Mohawk, New York. This item can be shipped worldwide.