A Victorian three stone graduated diamond and enamel ring, c.1860

A Victorian three stone graduated diamond and enamel ring, c.1860,
with a cushion cut diamond, grain set to the centre. A cushion cut diamond grain set to each side, with pairs of rose cut diamond set points. A blue champlevé enamel line bordering the diamonds, to fleur-de-lys enamel shoulders, to a tapered head and shank. Partial hand engraved message to the inside shoulders dated 1868. Tested as approximately 18ct gold. Head 7.30mm wide, 6.11g.
Finger size N½