White Gold and Diamond Smile Necklace N18D14209 Gold and Diamond Smile Necklace JNECK00368 14 Karat Yellow and White Gold Diamond Smile Necklace For Sale at 1stDibs Tiffany and Co. Tiffany T Smile Diamond 18k White Gold Necklace at. Color: Silver, Pink gold, Gold Stone: Cubic zirconia Ref. 686912123 Material: High Quality Silver Alloy 14K Gold Plated S925 Sterling Silver 18K Gold Plated 18K Real Gold (Contact us if you want to buy 18K real gold products). The product does not change color during daily use, such as bathing or swimming because it is plated with a thick layer of 14K 18K Gold and evenly coated. But please be careful not to expose the product to strong detergents for a long time. Alternatively, you can choose to purchase the original box that came with the product in the shipping option at checkout. Customers do not have to pay any additional fees after successful order payment, including local taxes and shipping charges incurred. We want you to be thrilled with your new purchase. If you are unsatisfied with an item and need to return it, we're here to help.