A LATE 19TH CENTURY RUSSIAN EMERALD AND DIAMOND BROOCH
The oval plaque with cabochon emerald centre, flanked to either side by single old-cut diamond collets and further ruby cabochon points, raised on a dimpled ground, to the polished bevelled border, circa 1890, Russian marks for gold, St Petersburg, 3.8cm wide
Maker's mark EK
A LATE 19TH CENTURY RUSSIAN EMERALD AND DIAMOND BROOCH
The oval plaque with cabochon emerald centre, flanked to either side by single old-cut diamond collets and further ruby cabochon points, raised on a dimpled ground, to the polished bevelled border, circa 1890, Russian marks for gold, St Petersburg, 3.8cm wide
Maker's mark EK