Gorgeous tanzanite cluster ring with 6.25 carats of natural gemstones. It has a comfortable undergallery and is an eye catcher. Signed D'Joy 925. The setting is platinum over sterling silver. Size 6 ***Tanzanite is exclusively mined in one area of the world: Merelani, a small region in northern Tanzania, near Mount Kilimanjaro. The area is only 17 kilometers long and has been divided into four mining blocks (A-D) by the Tanzanian government. Tanzanite is recognized as one of the world's rarest gemstones. ** All of my jewelry comes in a nice ring box and is in excellent condition. I take the time to check each prong and hand polish the rings before I pack them up for shipping. Please keep this in mind when you send me offers. I put a lot of time and energy into every order. I will also send you a pair of earrings or another type of jewelry as a gift with your purchase. I'll always ask you for your opinion so that the gift is something you will enjoy. Customer satisfaction is my top priority!