14k Solid Yellow Gold 7mm Simulated Birthstone Solitaire Pendant Necklace Unsure what length chain to buy? 18 inches is the standard length and will look great on most people To purchase the pendant by itself (without a chain), choose the "0.0 inches" length This necklace is made of solid 14k gold (not plated or filled), featuring high quality cubic zirconia stones. Our cubic zirconia is bright and clear with an unmatched sparkle, so it will easily convince others it's the real thing.