Smokey Quartz is the luxe focus of this open link necklace lovely layered or long solo or paired with any Tacori pendant enhancer.Design Details - Precious Metals: Silver Gemstones: Smokey Quartz Approximate carats as pictured: 39.15ctw Size: 0.40"l Gemstones also available: Clear Quartz Over Red Onyx Chalcedony Clear Quartz Over Green Onyx Available in Sterling Silver with 18k Yellow Gold Accents