Maria Callas Arie E Romanze Da Opere Celebri International Joker Chrome Diopside & Green Enamel Ornate Egg Necklace. About This Item A beautiful and intricately designed egg necklace generously decorated with vibrant enameling, silver beading and different cuts of striking green chrome diopside gemstones. As a symbol of new life and regeneration, egg jewellery motifs are the perfect statement pieces to add to your collection. Gemstone Information Chrome diopside gemstones are tinged green by chromium. Also lovingly named as 'Siberian emeralds' with their enticing green colours, chrome diopside gems are must haves for collectors of beautiful things.