Reposhing this item I purchased from @dblake3. Loved it, but ready to rotate for something new. Questions? Leave a comment below! Size 6.5 Stunning Blue Pear Diamond 3.80 CT set in sterling silver. Certificate of Authenticity Included These are genuine Diamonds found in mines mainly in Brazil. They are more porous than White Diamonds and are found upper layers of the ground relative to the White Diamonds that are mined deep. these Diamonds are found brown and or cloudy. They are made from earth mined rough rockl. stone color varies from a brown, clue eytvc. To bring out the true color &clarity they are treated by natural process of high heat & high-pressure. (HPHT) whichbrings out the true color and brilliamce. No artificial colors or chemicals included in the process. They are not irradiated. The process may or may not alter the composition BUT It remains a true Diamond nevertheless. If you use a jeweler's loupe you can see this by their molecular structure.