These are beautiful 15.90 carat Swiss blue topaz & diamond 18k yellow gold screw back earrings. These earrings feature fabulous super Swiss blue topaz stones that equate to 15.50 carats as well as 0.40 carts of bright white diamonds. These earrings measure approximately 1.10 inches long. Topaz is the gemstone associated with November. These earrings are handmade and one of a kind.