A magical river of blues, teals and greens run through this spectacular Australian Boulder Opal. Set in 14k yellow gold with our Ouroboros band this beauty is finished with petite white diamonds and tsavorite garnets. Approx stone size: 21mm x 15mm Approx ct weight: 9cts Mohs hardness: 5.5-6 This one of a kind piece is handmade with love in Emily's Hudson Valley studio. If you have questions about sizing, shipping or need help deciding on your perfect piece please reach out to us!