I found this ring today at COS. They have such lovely things in at the moment. The store is flooded with sea greens and deep blues as well as crisp white shirts and black pinnies. I can't wait to go back and find some things for my birthday. This stack/ hinged ring was part of a jewelry series. I loved the matching bangle but it was too big for me. I like the way you can wear it two ways. Out stretched or stacked up tight. You've got to love a bit of versatility.