Genuine Thai black spinel bead necklace 18 inches 925 Sterling 33 carats

For your consideration, is this beautiful sparkling Thai black spinel faceted beaded necklace. 18 inches long stamped 925 platinum over sterling silver and approximately 33 CT’s. Each Rondell gemstone is approximately 3 mm. Beautiful elegant yet with the simplicity to where casual or dressed up. It features a lobster claw clasp for ease and dependability of closure. This gorgeous necklace is brand new and never been worn.