Stauer NWOT cushion cut Helenite & lab Diamond Aura stones in 925 silver setting

Stauer NWOT genuine cushion Helenite & lab Diamond Aura stones in 925 sterling silver 4 prong setting Stunningly radiant cushion cut genuine Helenite center stone with checkerboard faceting appx. 14x10mm and 26 lab created round Diamond Aura stones plus 2 marquise shaped on the shanks. Marked Stauer and 925. No visible wear marks. Ring box included. Helenite is a man-made glass gem from the ashes of the Mount St. Helen volcanic eruption in 1980. Pet and smoke free environment