Malachite Gemstone 925 Sterling Silver Artisan Made Handcrafted Filigree Art Statement Ring Ring Face Length is 0.55" Natural Malachite Gemstone is 12 mm round cabochon cut. This metal embroidery filigree ring is oxidized and highly polished. Comes with a velvet pouch, silver polish cloth and a luxurious gift box. 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. It is made of delicate metal strands that have been skillfully fashioned to create an outstanding combination of old and modern art.