70s Givenchy Paris New York silver clip on earrings with blue/green faceted glass stone

Lovely set, amazing shape, clearly rarely worn and carefully stored. Stone is a bright blue/green, with no chips. Base is silver in what looks like a small brick pattern. 

Measure 3/8” wide, 7/8” high, and 1/2” deep. Each has original white ear pad on clip back. 

Each has brand logo and name stamped on back.