75% pure gold, hallmarked 750 or 18K, with nickel-free alloy. Cuffs, bangles, chains, tennis-style gold - every bracelet is 18 karat solid gold. There's no plating to wear off, no gold-filled brass to discolor, no vermeil silver core that turns your wrist green in year three. Solid 18K worn daily for decades still has 100% of its gold.