Build a one-of-a-kind Cushion Cut, 1.6 Carat engagement ring with a stone from our wide selection of loose diamonds. After choosing your stone, pair it with the metal and setting of your choice, from Art Deco-inspired diamond halos to simple solitaire engagement rings. Discover the details behind your diamond's 4C grades in its personalized GIA or AGSL certification report. Contact our free, non-commissioned virtual gemologist service or our expert customer service team if you run into any issues or questions along the way. Preview your custom wedding ring or diamond engagement ring for free at any of our authorized local jewelers.