Rare Diamond and Paraiba Tourmaline Circle Pendant. 46,500 Times More Rare Than Diamonds! Extraordinary and rare, Paraiba Tourmaline was undiscovered until 1989. Sourced only in one remote area in Brazil, it’s peerless electric blue color and unmatched rarity make it one of the world’s most sought after gems. Through exclusive arrangement, Louis XV is the only North American jeweler to offer this exclusive collection of fine Paraiba and Diamond jewels.