This beautiful bracelet has 15 links with each having two diamond-cut "XX"s on them (The first X also has a line through the middle, making it look more floral-like), and is marked on one of the links "10K VS." (The lobster clasp is also marked 10K.) It is possible that it is a mark for "Van S Authentics" (1930 - ?). The bracelet is 7-inches long and slightly over 1/4-inch wide. A few of the links are somewhat dark on the back sides, but they may have always been that way (looks more that way than that they are dark from age). Otherwise, it is in excellent condition (the blue tint you see in the pics is just reflection.) It weighs 5 grams. Also each link has a copyright symbol on it. A lovely bracelet, quite elegant, and a perfect gift for your partner.