A Russian turquoise pin brooch
A Russian turquoise pin brooch
Silver and 14k gold brooch set with 13 turquoise carrés, six old-cut diamonds (in total ca. 0.50 ct) and rose-cut diamonds. Hallmarks: Russian fineness 56 zolotnik, St. Petersburg assay mark, maker's mark "FK" with star. L 5.2 cm. Weight 9.0 g.
St. Petersburg, circa 1900.