from the Ross-Simons website: 3mm fire opals line these vibrant hoop earrings. Crafted in polished 18kt yellow gold over sterling silver, they'll bring the heat to any outfit! Hanging length is 7/8". Vault lock safety. Hinged post, fire opal hoop earrings. ---please see picture of matching ring (size 7.5) that will be included in your order. it is missing one Opal. --- pictures from website included because I'm not a great photographer. The first picture is of item for sale.