Big 37ct Natural Mint Green Australian Jade Chrysoprase Sterling Sterling Ring

One of a kind chrysoprase ring. "Chrysoprase is one of the rarest and most valuable forms of chalcedony, which is a cryptocrystalline variety of quartz" US size: 8.25 Main gemstone: natural Australian chrysoprase Main stone: 24 x 21 mm (37 ct) Treatment: not enhanced Other stones: cubic zirconia Metal: 925 sterling silver Plating: black rhodium and gold Face ring: 26 x 24 mm Total weight: 16.5 g (gem(s)+setting) R137