Shop our stunning selection of Asscher Cut, D Color diamonds, perfect for a diamond engagement ring or stud earrings. 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. Each of our diamonds is examined and certified by a reputable third-party agency, such as the GIA or AGSL. Contact our free, non-commissioned virtual gemologist service or our excellent customer service team if you run into any issues or questions along the way. Try your diamond or handcrafted wedding ring before you buy it with Ritani's free in-store preview program, available at any of our authorized local jewelers.