Beautiful and well made. The mark looks like an “s” with two bear paws to me. The cross is probably silver. But they never marked it sterling, so not sure. And I don’t have a silver tester. The chain probably doesn’t go with it, but they were together when I bought them, so I’ll keep them together. The necklace is unmarked. So probably not sterling on the necklace. It’s all in used condition. It has wear and oxidation. Overall, it’s a pretty nice piece. Please see photos for condition. Thanks and have a wonderful day