Antique 18K French gold single snake ring with Diamond pave head and Ruby eyes. I particularly love its curving and looping body that forms the ring shank. 

Diamonds are sparkly, eye clean, and very well executed in the pave work. 

Ring size: 6.5.  Sizable 
Metal: 18K yellow gold
Eagle hallmark on ring shank. Eagle’s head hallmark was used for small objects in 750/000 gold. Paris 1838-1847
Weight: 3.8 grams