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A late 19th century sapphire and diamond pin, by Koch and two diamond brooches
A late 19th century sapphire and diamond pin, by Koch and two diamond brooches

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A late 19th century sapphire and diamond pin, by Koch and two diamond brooches
The pin with a pear-shaped sapphire terminal with rose-cut diamond base, on a tapered reeded bar with diamond-set accents, circa 1890, 7.5cm long; one brooch an openwork circular plaque set with a central old brilliant-cut diamond within a radiating rose-cut diamond scroll surround, circa 1900, cased, 2.3cm wide; the other a bar brooch with central old brilliant-cut diamond-set wing motif applied with a red enamel cross, 5.0cm wide
Pin signed R. Koch

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