Sterling Silver Filigree Art Gray Moonstone Gemstone Butterfly Design Woman Cocktail Ring Ring Face Length is 0.80 inches and Width is 0.70 inches Gray Moonstone Gemstone is 7X14 mm cabochon oval cut. This metal embroidery filigree ring is oxidized and highly polished. Filigree is made of delicate metal strands that have been skillfully fashioned to create an outstanding combination of old and modern art. Originating in Mesopotamia, Anatolia.