gold and chalcedony ring

A large 18 carat gold ring with a big chalcedony and 10 gold dots made with 10 gold nails set in the agate, signed: Herail, for Francois Herail who was one of the founders of Poiray.
France, circa 1970.

ring size: 16.75 mm. 6 1/2 US
weight: 19.2 grams
dimensions: 5.5 – 15.5 cm.