This is a necklace purchased from a jewelry specialty store, Jewelry Maki. I am selling it because I haven't had the opportunity to wear it. It features a beautiful, high-clarity pear-shaped ruby surrounded by melee diamonds, with 10 additional diamonds set above. Material: Pt850, with the Jewelry Maki hallmark Stones: Ruby (approx. 7mm x 5mm) There are markings on the back of the ruby, which appear to be Pt.850 and possibly D0.36, but they are difficult to read. To prevent substitution, returns are not accepted. Please refrain from purchasing if you are concerned about any minor details.