Erica Anenberg Twosome Ring

Erica Anenberg's blue sparkle twosome ring retails for $112 at National Jean Company.

Erica Anenberg at ShopStyle

Forever 21's version has clear stones instead of blue, but other than that, it's a great alternative for a lot less cash. This ring retails for $4.80 and you can click on the photo below to purchase.

Forever 21 at ShopStyle