Our red coral ring is made by order. They are genuine oxidized 925 sterling silver. The bezel and the granulations of the ring are made by hand with bronze material so that it gains an antique appereance.. If you prefer thr rings without bronze materials please write what you would like in the buyer’s notes upon check out. The colors and stripes of the genuine gemstones vary beacuse of its nature. Make sure that we choose the most beautiful stones from the lots for your satisfaction. ,There is no doubt that you will wear these hand made rings with happiness beacuse they also made with love.