ETA: Holy crap, they have a thicker version that's only $125! I don't like it nearly as much, but I'm tempted.
ETA2: Omg and there are matching cuffs and earrings!
ETA3: And they come in black gold! I didn't even know that existed!
ETA4: Okay, it's official. This cuff proves that Gehry is the all-time master of metal. This is absolutely gorgeous.
ETA5: And agate, apparently.