A rare and exquisite treat from Cartier's master designer Aldo Cipullo, these vintage sapphire earrings are a must-have for any lover of high jewelry. From the "Circles" collection, these earrings feature a gorgeous geometric design that is formed with concentric circles of high polish yellow gold and frosty carved rock crystal with a central row of platinum set sapphires — that are very likely to be Montana sapphires — of brilliant blue tone.