Imperial Russian 84 Silver & Red Guilloche Enamel Brooch W/Mine Cut Diamond & Blue Sapphire Accents Marked "KF" (in Cyrillic) & Work Master MP (Mikhail Perkhin) in Faberge Casket - This gorgeous piece is made of solid 84 Russian silver (Pre-Revolution standard for silver), and is finished with an absolutely stunning vibrant red guilloche enamel. The center of the piece boasts the Russian Imperial Warrant crest, set with a genuine mine cut diamond accent. The piece is also accented with a 3mm (approximate) genuine blue sapphire cabochon, which finishes the piece beautifully. The bottom of the piece is marked "Faberge" in Cyrillic, and also bears the work master's mark "MP" for Mikhail Perkhin, who was active from 1860 to 1903 and was a senior Faberge work master. The brooch also has inventory scratch marks on the bottom of the piece, and will come housed in a Faberge leather casket. The piece measures approx. 1.75"L x 1.5"W, and is in stunning condition. (WEIGHT: 24.6 grams)