Tanzanite exists because of a few square kilometers at Merelani in northern Tanzania, found in 1967 and never found anywhere else. Every tanzanite ring is single source scarcity you can point to on a map, in a color that lives between blue and violet and shifts with the light. December claims it as a birthstone; collectors claim it year round. Each ring here holds natural, earth mined tanzanite, documented by a gemological appraisal signed by a certified GIA Graduate Gemologist, and exists in exactly one copy. One honest note: at 6.5 to 7 on the Mohs scale, tanzanite is a stone for considered wear rather than gardening gloves, so treat it like the rarity it is. Free insured worldwide shipping and a 7 day inspection window are standard. Tanzanite's place near the top of our gemstone rarity ladder is no accident, and more violet blue lives in the full tanzanite collection.