WHITE GOLD AND 4 CT. DIAMOND BROCH WITH A FABERGÉ CASE Russia, St Petersburg, late 19th- early 20th century

14K white gold brooch designed as oak leaves and acorns set 2 pear cut diamonds weighing approximately 2 ct. each and rose cut diamonds weighing approximately 1 ct. Hallmarks: maker’s mark in Cyrillic ‘OK’ possibly for Knut Oscar, city mark of St. Petersburg, ‘56’ gold standard 4.5 x 2.2 cm gross weight: 11.03 gr.