Solitaire diamond engagement rings are set with one diamond, and the brilliant (round) cut is the most popular. The round cut of diamond shows the natural fire and sparkle at its best. Proposing with a diamond engagement ring is still the classic and most stylish way to ask a woman for her hand in marriage. In this section we offer you a wide selection of traditional and more contemporary diamond engagement rings set with brilliant cut diamonds. We also offer engagement rings with princess cut diamonds (square), or fancy cuts such as marquise, pear and asscher shaped stones.