NOUVEAU 1910 18K PLIQUE A JOUR ENAMEL & DIAMOND RING: 18K yellow gold ring contains three round brilliant cut diamonds, approx. .11 Ct. The diamonds average VS in clarity and G in color. Green, blue, pink and iridescent plique a jour enamel. Sold with the original presentation box of Nouveau 1910. Size: Weight: 6.6 grams.