4 carat cushion sapphire engagement ring Art Deco.  This fantastic original Art Deco platinum ring features a stunning Ceylon blue sapphire. The 4.48 carat cushion cut sapphire is delicately prong set, allowing maximum light and color to show. Surrounding the Ceylon blue sapphire are thirty-two (32) single cut diamonds, which add additional sparkle from every angle. This fabulous Art Deco engagement ring is a true example of Art Deco craftsmanship and style!