This Oscar Heyman estate ring from the 1980s is a breathtaking beauty of magnificent proportions! A spectacular 8.38ct Emerald Cut diamond is prong set within the platinum mounting. Surrounding the diamond is a border of vivid sapphires, which include Baguette and Trillion Cut stones weighing approximately 1.50ctw combined. The stunning diamond has L color, SI2 clarity, and exhibits medium blue fluorescence. The rectangular face of the ring has clipped corners, giving it a subtle, yet…