1.72 Old Mine Cushion Diamond Engagement Ring 14kThis solitaire engagement ring features a 1. 72 carat old mine cushion cut diamond in 14 karat yellow gold. The fancy brown diamond has VS2 clarity, meaning any inclusions are difficult to see even under magnification. Set in four prongs, the antique cushion cut reflects light through larger facets that create a soft, romantic glow rather than the sharp brilliance of modern cuts. The center stone sits within a double ridge border that frames the