Collette Z Sterling Silver Clear Crystal Quartz Round Station 32-inch Necklace (White - 32 Inch - Quartz - White). This stunning necklace features round-cut clear quartz gemstones that are surrounded with a rim of black-plated .925 sterling silver. The necklace secures with a lobster claw clasp. Style: Necklace Gemstone colors: White Gemstone shapes: Round 13 prong-set round-cut clear crystal quartz each measure 14.32 mm Metal: Sterling silver Finish: High polish Clasp: Lobster claw Metal weight: 28.3 grams Necklace dimensions: 17.35 mm wide x 32 inches long All carat weights and measurements are approximate and may vary slightly from the listed dimensions. Treatment code E. See Gemstone Treatments for further information.