Below are some of the diamond vintage ring designs that you can consider to make your special day rocking. Princess Cut Three-Stone Diamond Vintage Ring Princess cut diamonds are the ideal choice for you if you want your ring to exhibit ultimate sparkle. Additionally, the center stone is flanked by two accent diamonds on either side in order to enhance the size and look of the ring. Halo Flower Diamond Vintage Ring In this type of diamond engagement ring designs, the main gemstone is set on a flat platinum surface that contains some beautiful and intricate patterns, which resembles a flower. The shank of the diamond ring is also embellished with sophisticated milgrain and filigree works. Two-Tone Diamond Vintage Ring Using two-tone metal is the perfect way to make your diamond engagement ring stand out from the rest of the crowd. In this design, a split shank of white gold and rose gold is used to secure the diamond and to give the ring a bold appeal.