These earrings are made using glass fire opals in a fiery pink color with flashes of darker pink, yellow, greens and more. Each stone is 2 carats in weight and is set in a crown setting that is 18K gold plate over brass. The stud itself measures 5/8 inches long with a snug fitting prong setting. The stone with setting is .8 cm (8mm) wide) Fire opals have a slight "haze" over the top of the stone that makes them appear "milky" and give them some of their opalescence. These are new earrings and have never been worn. Your satisfaction is guaranteed or your money back. These ship within 1- 2 business days from New Jersey, USA in a well protected padded envelope.