The prolific Icelandic designer Sruli Recht has created a new jewelry masterpiece that is a stunning achievement of modern design. The R¿ng Rough Diamond Rings by Sruli Recht are a collection of modular rings that feature a 10 carat mobius strip band and three interchangeable uncut diamond settings. On a whim, the wearer can swap out the rough, uncut black diamond for a white or orange diamond at will. If you recognize the name Sruli Recht, he’s been around the blogosphere quite a bit lately with his Carbon Dater black diamond pen and his Umbuster brass knuckles umbrella. Check out the new R¿ng at TheCoolist.