Diamonds are a scientists' best friend

Researchers at the University of Melbourne in Australia have made the world's smallest diamond ring - 5 micrometers across and 300 nanometers thick - in order to build powerful computers that use properties of quantum physics. More on the story here.

The scientist explained:

The diamond offers a fantastic platform in order to make qubits because diamonds offer us a gift from nature . . .

5 micrometers? Don't expect a lot of excitement about this from women. Maybe the cut and clarity will make up for it.