A  silvery grey Tungsten Ring with a blue/grey chequerboard pattern . The grey of the Tungsten glints silver or black depending on the light , as seen in the image ,where the black rims also may appear silver . The blue chequerboard design also glints and changes in the light . Hence the rings is quite enigmatic. 

Tungsten is extracted from the mineral Wolframite and is approximately twice as hard, and double the density, of steel. It ranks about 9 on Mohs scale of hardness. 

Weight:12.7 grams   Width:  0.7cm   Size:  U