Mauri Pioppo’s Cosmos Ring sets a luminous moonstone between four tiny diamonds, letting the stone do what moonstone does best: change with the changing light. Milky one moment, blue the next, almost translucent from another angle. There is something wonderfully rebellious about that shimmer. It refuses to stay one thing. That may be what I love most about this ring. Sure its a statement piece, but the message is a sweet reminder of the ongoing phases, flus and strange beauty of change.