8.18 Carat Diamond Tennis Necklace in 14K Yellow Gold.  This dazzling 17” diamond tennis necklace features 8.18 carats of natural diamonds in 14k yellow gold. Fitted in a row around the entirety of the chain, each near-colorless diamond sits in a shared prong setting made of warm, 14k yellow gold. With impressive brilliance and clarity, this modern necklace would make an unforgettable gift for any loved one!