Margot McKinney Jewelry opal and multi-stone ring. Polished 18-karat yellow gold band and settings. Prong-set opal center with mixed-cut stones. Diamonds, peridots and tsavorites with pink and blue sapphires. 3. 35 total peridot carat weight. 2. 28 total tsavorite carat weight. 2. 00 total blue sapphire carat weight. 0. 35 total pink sapphire carat weight. 0. 18 total diamond carat weight. Made in Australia.