A silver and Royal blue guilloche enamel and foiled rose-cut diamond

A silver and Royal blue guilloche enamel and foiled rose-cut diamond brooch. Probably made using an early 19th century brooch. Domed rectangular plaque with bevelled corners, overlaid with translucent royal-blue guilloché enamel. Closed-set with five foil-backed rose-cut diamonds, the central pear-cut stone (approx. 11.0 × 8.1 mm) surrounded by 26 small rose-cut diamonds. Modern brooch fitting with hinged double pin. The clip stamped: "Deposé". 2.8 × 3.5 cm. Weight 20.19 g.

Estimate:$2,245.29

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