The largest frame size in Prism’s collection, these ‘London’ frames are a favorite of us here at Frame Geek because of their uniquely contrasted tortoiseshell pattern. What’s most unique about Prism – the brainchild of Anna Laub – is that all the frames are designed as accessories, much like a pair of shoes or jewelry. The result is some moderately priced, yet high quality pieces that venture outside the more conservative confines of traditional eyeglass frames.