A Vintage 18 Karat Yellow Gold, Platinum, Coral, Diamond and Enamel Ring, Angela Cummings for Tiffany & Co., containing one sugarloaf cabochon cut orange red coral, the tapered shoulders and shank embellished with deep blue enamel between raised gold boundaries overlaid with a platinum spine containing 30 round brilliant and round single cut diamonds weighing approximately 0.85 carat total.Hand Inscribed: Tiffany 18K. 10.60 dwts.