Hello, and thank you to all. Mother had these for years and treasured them. The intricate clasp is tentatively identified as platinum with small diamonds and sapphires. It opens by pressing on one of the leaves. I can't find any marks on the clasp. There are 119, about 10mm pearls, which I suppose are baroque from their shape and luster. Would love any information or insight from this knowledgeable assembly. Thank you so much.