Tanzanite was first discovered in 1967. There is a theory that it was accidentally discovered by Maasai tribesmen in the Merelani Hills in northern Tanzania, Africa. Because it resembled blue sapphire, it was initially hoped that a sapphire deposit had been found. However, when gemologists examined the crystals, they found that it was blue-colored zoisite. Under the trade name Tanzanite, it is classified as blue zoisite as a mineral. For a while after the discovery of Tanzanite, its value was not recognized. However, Tiffany & Co. in New York recognized the value of the beautiful and vivid colored crystals and became a major distributor, which brought it to the public's attention. The name "Tanzanite" was also given by Tiffany, as the color of the ore resembles the Tanzanian night sky and in homage to Tanzania, the place of origin. In the 1980s, it became a hit in the United States and gained worldwide recognition. Tanzanite exhibits pleochroism, appearing more blue or purple depending on the viewing angle. This ring has excellent transparency and allows you to see the pleochroism! The design is a simple yet gorgeous one, with cubic zirconia on both sides of the main tanzanite. Also, the gold and silver colors make it easy to match with any accessory. Size: Stone size: Approximately 6.1 x 4mm Silver 925 Gold part: K18 coating Free size