The contemporary Large Black Onyx Rectangle Necklace from Anna Beck is a versatile addition to your jewellery collection, featuring a deep black onyx stone in a chic, rectangular shape. Black Onyx is thought to have a calming quality and protect the wearer from negative energy. Each cut of stone is unique; the actual colour may vary slightly. Chain Length: 16-18". Stone Size: 19mm x 25mm. Handmade in Bali. Metal: 18ct gold plated sterling silver. Presented in official Anna Beck packaging.