When Grandma passes on her diamonds, the recipient feels oh so special having a piece of her to keep close by. When Grandma is the diamonds, you’re talking a whole new level of heirloom jewelry. Algordanza is a Swiss startup that takes cremated human remains and transforms them into diamonds. Before you scrunch up your face, keep in mind that diamonds are little more than pressurized carbon atoms that have been baked and squeezed beneath the earth’s mantle under extreme pressure and heat for thousands, if not millions, of years. Human bodies are roughly 18 percent carbon, so these memorial diamonds not only make sense, but they are almost indistinguishable from the “real” thing.