Product Details Stone Description: 8 to 10mm genuine raw gemstone Stone Setting Material: 4 prong 24k yellow gold 925 sterling silver Chain Description: 16" + 2" extension = 18 inches, yellow gold over sterling silver Perfect chain necklace piece to have in your collection Perfect for gifting, it comes with a jewelry box Money-back guaranteed if it is not what you expect We provide good customer service, please contact us for any questions that you may have Click on the “Uniquelan Jewelry” link on our product title, to visit our storefront, We have all kinds of unique jewelry that you will love. For Raw stones: It is usually difficult to have a particular shape and color for raw untreated stones. We specialize in different types of Raw Gemstones, and crystal. what you receive, will not look exactly like the one in the picture as displayed. But it will look as beautiful and very similar.