AU750 D0.167CT Markings as above. The diamond is 0.167ct, but it is a high-quality diamond, so it has a strong presence and is very beautiful. It's not too big, so I think it's easy to use casually. Product Details: [Diamond] 0.167CT [Material] AU750 [Circle] 15 I purchased it, but I haven't had many opportunities to wear it, but there are some minor scratches. (Please check the 10th photo) Please understand that this is a used item before purchasing. There is a box, but no accessories such as a warranty. Please refrain from purchasing if you are nervous about home storage.