Eugene Feuillatre - French Art Nouveau Diamond, Opal, 18 karat Gold and Enamel Ring. The ring has a center black opal surrounded by 8 rose-cut diamonds and 4 enamel wings. The closed gallery is decorated with a gold/enamel scrollwork design.
Gold, Peridot, Diamond, and Pearl Entwined Snake Brooch, circa 1900
Necklace by Philippe Wolfers.
Art Nouveau Opal ring, from the catalog at Tadema Gallery French, the diamond surround is so exquisite
Image result for krementz jewelry
Art Nouveau Plique-à-Jour Enamel, Pearl, Diamond, and Silver Pendant
This is not contemporary - image from a gallery of vintage and/or antique objects. ART NOUVEAU Butterfly Ring Two Colour Gold Aquamarine Diamond
North India: Carved emerald, pearl, enamel and gold ring century). The Mughal emperors and other Indian princely families had a passion for precious stones and pearls. And among the stones most prized were emeralds, particularly carved emeralds.