A three-carat Lucida-cut ring from Tiffany & Co. Three's Company ... Toni Braxton's oval-shaped center stone from drummer Keri Lewis has a heart-shaped accent on either side.

The Wavy Heart Ring ($115) features an abstract wavy band that showcases a prong-set heart-cut cubic zirconia with a partial halo of pavé stones and is enwrapped in 14-karat gold plating.

and Pear are emerging as couples seek personalization in their rings. Whether it's the geometric boldness of a Hexagon, the romance of a Heart cut, or the clean brilliance of a Radiant ...