This Clear Quartz over Green Onyx pendant has brilliant shine and radiates elegance and style. Hanging from an 18" silver chain with an 18kt gold gem seal detail this necklace will take your breath away. (Chain included)Design Details - Precious Metals: Silver Gemstones: Clear Quartz Over Green Onyx Approximate carats as pictured: 23.50cts Size: 0.90"w X 0.90"l Gemstones also available: Smokey Quartz Neolite Turquoise Clear Quartz Over Red Onyx Available in Sterling Silver with 18k Yellow Gold Accents