Ring Art Deco target diamonds on platinum and white gold

Ring target in white gold 18Kt and paltinium (hallmark: owl), the center of which is adorned with a diamond estimated to weigh approximately 0.20 Ct (color estimated H, purity estimated VS), set in a circle of diamonds rose-cut stones, estimated total weight approx. 0.15 Ct. Art Deco work, circa 1935. Gross weight: 2.35gDesign height: 1.10 cmSizeSize: 48 3/4 (diameter 15.50 / US 4.75). Condition: very slight micro-scratches on the gold and silver parts. paltinium, and slight abrasion on diamonds, see pictures.   The name of the diamond is derived from the ancient Greek adamas meaning "indomitable". It is composed of almost pure carbon, like graphite. How is it that the same chemical element can produce two such different allotropes? Find out in our article. All our engagement rings.