Beautiful Art Deco brooch with blue spinel Made of gold-plated silver, hallmarked with 835 & maker's mark Measurements c. 28mm/22mm/10mm The stone measures about 10mm diam. Weight c. 4,37g In very good for its age pre-owned condition, some patina, normal signs of wear-please see scan The stone has been tested with gemstone tester PGTII-please, see the last photo Gemstones are commonly treated to enhance colour or clarity. This has not been researched for this specific item The accuracy of the displayed colours depends on the hardware and software. Colours may differ slightly from the original product Shipping with DHL(tracked & insured)