Military medal Ordinance in gold and diamonds

Rare pendant, military Ordinance medal in 18Kt gold and silver (owl and swan hallmark), entirely set with pink diamonds, as well as enamel. A silver laurel wreath surrounds a gold medallion bearing the effigy of the Republic, surrounded by a blue enamel circle with the inscription: French Republic. 19th Century Victorian work. More recent bail. Gross weight: 1.80 g Height: 2.50 cm Condition: slight oxidation and micro scratches on the metal parts and slight gaps on the enamel, see photos.