Margot McKinney Jewelry opal and multi-stone ring. Polished 18-karat rose gold hardware and settings. Prong-set opal center with multihued stones. Diamonds and peridots with yellow, pink and orange sapphires. 8. 59 total opal carat weight. 3. 58 total orange sapphire carat weight. 2. 37 total pink sapphire carat weight. 1. 66 total yellow sapphire carat weight. 0. 31 total peridot carat weight. 0. 28 total diamond carat weight. Made in Australia.