Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Opal & Diamond Ring in 9ct Gold £389.00 Sold Central opal, surrounded by two layers of tiny diamonds. The ring is set in 9ct gold and is hallmarked. Ring Size: K 1/2 Sold Added! Central opal, surrounded by two layers of tiny diamonds. The ring is set in 9ct gold and is hallmarked. Ring Size: K 1/2