Montana Sapphire and Diamond Ring Sterling Silver size 7

This little ring has been made using unheated/untreated natural gems. The focal stone is Montana sapphire from the us. There is some color zoning but it's a darling little gem measuring roughly 6x4mm pearl weighing .42ct.

Flanking the center stone are four natural diamonds weighing .05ctw. The gems have been set in sterling silver. The ring weighs 1.8g and is a size 7.