These naturally colorful Southwestern Sterling Silver dangle earrings feature intricate concha style flower designs with a genuine oval Red Spiny Oyster gemstone adorning the center and an oxidized, polished finish. Lever back clutches for pierced ears are secure and comfortable. While every gemstone in the world is naturally unique, we carefully select the stones for each piece. We have been creating jewelry since 1975, and we're proud to share our legacy with you. Made from nickel-free Sterling Silver with 92.5% silver metal, this original piece was designed in Albuquerque, New Mexico, Usa. If oxidation or tarnish darkens the piece over time, simply wipe with a polishing cloth to restore to desired finish. Store in the convenient anti-tarnish zip top bag provided in your shipment.