Stone Bead Necklace Rose Quartz Snowflake Obsidian Cloisonne Gradient 30"

Beautiful stone bead necklace with beads composed of different stones and other materials. I see snowflake obsidian, rose quartz, probably onyx and agate, and some beads are cloisonne. 30" long and in excellent condition. Marked 925S on the clasp, but metal is gold tone, so I assume plated sterling silver.