Sparkling sophisitcation. This dazzling white gold necklace is complemented with beautiful white fire opal gemstone that stands out in a chic graduated design.18K White gold plated brass1ct. Round-shape lab-created opalTotal number of stones: 918in. Cable-link chain with 2in. extenderLobster claspCharm dimensions: 0.4"L x 1.8"WCARE INSTRUCTIONS: Wipe clean with soft dry cloth, can use water, do not use alcohol, or any other things that contain chemicals to clean