Here's another impressive 'configurator' built on Blend4Web. Excellent image quality!
Blend4Web Team writes:
Our partner studio VisCircle known for their high quality 3D web configurators created this beautiful interactive online boutique of MEISTER, a Swiss-based brand of jewelry. You can choose one from the massive variety of rings and costumize it the way you want! Once again, skillful hands are creating miracles with Blend4Web :)