Floyd / INV/ALT Design
Unlike past cup-handle rings that've appeared on this site, these cups are still fully intact so the Swarovski-laden handle adorns your finger only as long as you're nursing a drink. They're temporary rings but permanent mugs. By Japan's Floyd, the "cup rings" are available at Style Store (in Japanese) for ¥3,675 (roughly US$30) each.
Below, also by Floyd, are some non-traditional diamond rings. How often do you see gem clusters where each stone has its own setting?
Even more jewellery: