Erica Anenberg is quite well-known for her "Twosome" line of rings all around Hollywood. First sold in 2001 at Maxfield Los Angeles, they were originally created for Maxfield's rock n' roll clientele. Nowadays, everyone's wearing them from celebs to music artists to everyday Janes. I think I'll pick me up a pair soon...
Hope Block Twosome™ ring
14K Gold Plated Classic Sparkle Twosome™ ring
14K Gold Plated Endless Twosome™ ring
14K Gold Plated Crystal Cluster Twosome™ ring