From Gemvara, Once a Boston Tech Crown Jewel, Bought by Richline Group:

Jewelry ring stock image
Jewelry ring stock image

Photo “Oblong Ring -3” by Flickr user zeevveez, used under Creative Commons license. Photo cropped to fit Xconomy publishing system standards. https://www.flickr.com/photos/zeevveez/3097959957/ https://creativecommons.org/licenses/by/2.0/