the brooch designed in a curved motif and with a modified shield novelty cut diamond (8.66 x 10.18 x 3.71 mm) weighing 2.28 carats (actual) (L color, VS2 clarity) and with a modified shield novelty cut sapphire (8.88 x 10.27 x 3.98 mm) weighing 2.85 carats (actual) set to terminals, set to the center with a square step cut diamond weighing approximately .75 carat (H color, I1 clarity), and set throughout with old European cut, single cut, and transitional cut diamonds weighing approximately 2.0 total carats (H-I color, VS2-SI2 clarity), completed with a single locking pin stem and with small triangular bail, stamped 585 and with hallmarks for Vienna, Austria indicating mixed metals and with maker's mark. Sapphire with AGL Document stating Natural Corundum / Sapphire with Ceylon origin and no gemological evidence of treatment.

1 x 2 7/8 in.

7.1 dwt.

GIA Report number 6234340051 dated July 05, 2024
AGL Document number 1141919 dated 30 July 2024

Private Collection, North Carolina

Privileged to work with the Imperial Court jewelers in Vienna, Austria and flourishing between approximately 1895-1922, Josef Siess Söhne was influenced by the Art Nouveau and Jugendstil movements of the time, and collaborated with fellow Vienna Secessionist artists including Gustav Klimt and Joseph Olbrich. An Art Deco carved emerald and diamond brooch from his workshop and gifted to Baroness Clarice de Rothschild by her husband, Baron Alphonse de Rothschild, is in the collection of the Museum of Fine Arts, Boston.

Sapphire displays a bluish violet hue, medium light tone and slightly grayish saturation.

$4,000 - 8,000