925 Sterling silver is an alloy of silver containing 92.5% by mass of silver and 7.5% by mass of other metals, usually copper. This beautiful charm is cast of solid .925 sterling silver. It is compatible with Pandor, Troll, Chamilia, Biagi, and other jewelry, and interchangeable with Pandor charms / beads! Made of 925 Sterling silver, perfect gift for any occasion. Note Wisdom Essence Beads Fits Pandora Charm Bead Bracelet DIY Crystal Beads Original 925 Sterling Silver Fashion Fine Jewelry