Trying to identify this ring

Does anyone know the origin of this ring based on these pics?


<img src=/uploads/db1846/original/1X/f08502faa662caa1c68d98524694b5795a9fac29.jpg">

<img src=/uploads/db1846/original/1X/a25f701cb4884b7f9a568ef81536858e328a82ad.jpg">

<img src=/uploads/db1846/original/1X/155d15aa71fb04915712fcc8aaab7c2ff39c9384.jpg">

This is a sterling silver “stack ring” and part of the Carolyn Pollack collection as sold on QVC.