18 Kt. Butterfly Brooch with Diamonds.Sapphires, Rubies and Emeralds two Old European-cut, four round full-cut, faceted diamonds, total diamond weight 1.52 cts., color I-J, clarity SI 1-2, accented with blue and yellow sapphires, rubies and emeralds, 18 kt. yellow gold mount with double-pin back,
Marcus & Co. Art Nouveau Brooch. Circa 1905, Sterling, Marcus & Co., New York. This stunning Marcus & Co. Art Nouveau brooch features sublime iridescent abalone and lovely Montana sapphires. The amorphous shapes interspersed with twig and berry style elements is radically design forward. The abstract motif foreshadows the biomorphic movement.