This is a pair of beautiful blue and clear rhinestone earrings. They are not marked but the backs look like sterling silver and the posts look to be gold filled. The center blue rhinestone has an open back so the light shines through it making it very bright and clear. The earrings measure 1/2 of an inch in diameter. The earrings are in very good condition but may need cleaning or polishing. Please let me know if you have any questions. Thanks for stopping by.