Stamped 925 And 10k Yellow Gold - Blue Sapphires. There Is A Makers Mark Next To The 10kt Stamp But I Am Unable To Make It Out. Really Exquisite. Any Questions Just Ask Search Terms Below (Not To Describe The Item): Sterling, Gold, Karat, Grams, 14k, 14kt, 18k, 18kt, Designer, Necklace, Crucifix, Gem, Gems, Gemstone, Diamond