Untreated Montana Sapphire Band Ring 950 Platinum size 7

This natural silvery-blue sapphire is untreated/unheated, from Montana, USA. It features pear and emerald cuts of teal-blue, to light violetish blue, depending on the light source. The stones are about 4x3mm and total about .81ctw. Sapphires are set in a 95% platinum setting that is a size 7 weighing 3g. It is British hallmarked and will come with a certificate of authenticity.