Natural chalcedony agate & larimar sterling silver size 7 ring

This is an absolutely gorgeous natural / genuine / untreated chalcedony agate & larimar sterling silver size 7 ring. The center stone is made of light blue larimar and is an oval cabochon encased with sterling silver. It has natural veins and grooves inside it. The ring mount is made of lavender blue color natural chalcedony agate. Looks bluish purple in daylight and greyish purple in incandescent light. Stamped GSJ and 925 inside the ring and weighs 20.5 grams. In excellent vintage condition