⭐️Silver-tone Celtic? Geometric? Pendant/Charm w/ Blue "Stone"

One-sided, bright silver-tone pendant/charm. Silver 925 bail. It has a smooth back and the front has a little blue "stone" (probably plastic) in the middle. Upcycled from broken jewelry. Has a bit of wear, please see photos. Can be put on a cord as a pendant, or attached to the elastic of a planner like a Traveler's Notebook. Pendant only, no chain or cord. Sold as is, comes from a cat-friendly home. Pendants/charms marked with a ⭐️ are 2/10$