1 Carat Cushion Cut Engagement Ring in Yellow Gold1 Carat Cushion Cut Engagement Ring in Yellow Gold. This darling modern engagement ring features a 1. 13 carat cushion cut diamond that is set east west in 14 karat yellow gold. Along with the center stone, the shoulders feature a lovely line of round diamonds set atop incredible scrolling open filigree work with milgrain detail on the edges. From a side view this ring is incredibly impressive, the metal work and the view of the undercarriage are