Antique Russian Enamel Diamond 2.98 Carats Ring

A 14 karat yellow gold, silver topped gold, enamel and diamond ring, Russian, Moscow, 1840s. Designed as a bombe ring centering a silver topped gold set old mine cut diamond surrounded by an additional fourteen (14) old mine cut diamonds, decorated around the central stones and at the shoulders with deep blue enamel with an arabesque design of gold. Total diamond weight approximately 2.98 carats. Size approximately 10 1/2. Gross weight approximately 15.60 grams.