Australian Opal Oval Shape Inlaid Stud Earrings. Fine Quality Australian Opal. 14Kt Yellow Gold. Inlay Earrings Features: Natural Australian Opal, cut and polished by hand in our shop. Straight from the mine to you. Fine quality has a blended color spread with intermittent play of color. Our exclusive Australian Opal earrings designs, by James Hawkes. 100% made in our shop, by the best inlay artisans in the world. Made to last for generations. Made in the USA. For customers who want the best. Solid 14Kt gold, not plated. Fastening: friction posts and butterfly backs. 100% recycled gold. Average weight: 2.5 grams. Measures: 12.1mm x 8.6mm (from top to bottom and widest width). Free shipping for retail orders over $200. Actual item pictured and available. Ships within 1 business day, delivered in 1-2 business days.