This is a necklace made of natural sardonyx. It has a simple and elegant design. - Color: Red - Material: Natural stone, sardonyx - Design: Single-strand necklace of natural stones Sardonyx: A stone that brings about a fortunate marriage. Attracts marital harmony, friendship, and good luck. As you can see, there is rust on the magnetic clasp. The stones are beautiful and I believe they are of high quality. Thank you for looking.