Gold daisy cluster ring, late 19th century

An 18k gold daisy cluster ring, set with old-cut diamonds. The central diamond weighs 0.75 carats, within a surround of diamonds totaling approximately 1.5 carats.
French craftsmanship, late 19th century.
Gross weight: 4.4 g.
Ring size: 58 (EU) / P½ (UK) / 8¼ (US).
Bearing the master hallmark of Charles Fontana et Cie.
In its box.