Oval Openwork Sapphire Ring

Small old openwork oval ring in 750/1000e (18k) yellow gold centered with a small calibrated sapphire in a closed setting, supported on each side by three small white stones in a closed setting. French work at the end of the 19th century.
Condition: good general condition, a micro scratch on the sapphire visible under a magnifying glass x 10, a few micro scratches
Dimensions: 14mm / 8mm
Hallmarks: French goldsmith's hallmark, eagle's head hallmark almost erased, owl re-hallmarked for 18k gold
Finger size: 56
Gross weight: 2.30 gr
ref.524