Cartier High Jewelry Panthère de Cartier Double Head Ring in 18K White Gold with Ruby, Diamonds, Emeralds, Onyx. Cartier High Jewelry Panthere Ring – 18k white gold, one 20.77-carat cabochon-cut ruby, emeralds, onyx, brilliant-cut diamonds. Metal: 18K white gold Gemstones: Ruby, Diamonds, Emeralds, Onyx Price: Please contact us for factory direct selling price. Buy Real solid 18k gold and genuine …