Effy Tanzanite & Diamond “Royale” Ring

Tanzanite is found in exactly one place on earth — a few square miles at the foot of Kilimanjaro — and geologists estimate it will be mined out within a generation. That scarcity is part of what makes this Effy ring quietly special: a natural round tanzanite of 1.07 carats, that unmistakable velvety violet-blue, set in 14K solid white gold and ringed by a halo of diamonds totaling nearly half a carat. The halo does real work here, throwing white light around the stone so its blue reads even deeper. It’s a size 6, new and unworn, signed 14K and Effy inside. A stone rarer than diamond, in solid gold, from a house known for its color work — and priced like an everyday luxury rather than the collector’s item it quietly is. For anyone drawn to blue stones, tanzanite is the one to own while you still can.