This product is a unique pair of S S .925 Ethiopian Black Opal and Tahitian Pearl earrings with a leverback closure. The earrings feature round and rondelle-shaped stones, with a total carat weight of 10.01 and larger. The main stone color is blue/purple Tahitian Pearl & the Ethiopian Black Opal is 6mm and the metal is sterling silver .925. Made in the USA , these dangle earrings are nickel-free and feature four gemstones in total. The design is inspired by nature, making it a beautiful and artistic accessory for various occasions such as Mother's Day, Christmas, anniversaries, birthdays, and Valentine's Day.