made in Moscow in the 1930s
An Art Deco 14K gold brooch features a huge and very rare Russian precious Imperial topaz from the Ural Mountains set in a scalloped double frame embellished with old rose cut diamonds. The stone has a golden orange color and measures 25 x 16 x 7.3 mm (approximately 20.73 ct).
Marked on pin with Moscow assay mark from the 1930s.
There is a loop behind the pin guard for a chain (can be worn as a pendant).
Width 35 mm (1 3/8 in.)