Late 60s Oversized Gradient Brown Round Sunglasses

This is gorgeous pair of late 60s early 70s round oversized sunglasses made of lucite. Both the lenses and frames are gradient brown - the frames are brown on the arms and outside of the lenses, and move to a clear brown at the nose. The lenses are gradient style as well, dark at the top and lighter at the bottom. They are marked Diana-Katia on the arm. Very Jackie O, statement vibes! in good vintage condition - minor scratching on lenses.