HENRIK WIGSTROM (1862-1923). 14k yellow and rose gold umbrella knob, the white enameled body alternating with rose gold flutes, adorned with garlands of laurel leaves in chased yellow gold, highlighted with rose-cut diamonds set in silver, and surmounted by a large oval-cut amethyst with faceted breech and cabochon top, the circular base with tapping. Oval jeweler's hallmark H.W. for Henrik Wigstrom, one of the most important masters who worked for Carl Fabergé, active between 1903 and 1917. Hallmark 56 Zolotnik Saint-Petersburg (1908-1926). Russian work of the beginning of XXth century (between 1908 and 1917). Height : 4,3 cm 4.3 cm - Diameter of the base : 1.1 cm - Gross weight : 40.4 g