Not only is this Pilates ring listed at a great price (and it's currently on sale), but it also comes in four adorable colors to help make working out way more fun. The 14-inch magic circle ring ...

A circle of cut diamonds make up Olivia Collings’ feminine Carnation antique ring set atop a gold filigree band; $10,500. OliviaCollingsAntiques.com and Barneys.com.