This exquisite diamond ring is set with 0.50 grams of shielded diamond. All diamonds sparkle enchanting and are 100% * in texture. All our products come with a free gift box, * 100% customer satisfaction. The black diamond used in this product is color enhanced. Black diamonds may have one or two small blemishes or white spots. The black diamonds in this product are half face and natural. These black diamonds are consistent with rose-cut diamonds or scrap diamonds. The black diamonds in this jewelry item are not gem grade and the number of facets included varies from 0 to 16. Natural black diamonds are rare. dazzlingrock sells only heat-treated black diamonds, which are treated using the high-pressure heat treatment (hpht) method. In the hpht treatment, the diamond will be heated to about 1260 degrees, at which point the diamond will turn black. hpht processing is complete and permanent. SKU # k1775