Tri Opal Diamond Accent "J” Hoop Earrings 18K Gold over Sterling Silver Beautiful Opals are known for their vibrant play-of-color, each stone unique, shimmering with a celestial light sending a brilliant aura throughout these glamorous earrings. These iridescent opal and diamond accent J hoop earrings illuminate any look. Created in 18K gold over sterling silver stamped under the gallery. Lined with beautiful natural opals with a touch of diamond accents - artfully set to enhance size and sparkle. The J hoop earrings are secure with pushback post closures.