A diamond and ruby brooch, by Tiffany & Co., 1960s, modelled as three birds perched around a nest, the bi-coloured feathers pave-set with brilliant-cut diamonds, to the textured gold tails and ruby-set eye detail, the nest of textured gold, centring three pearl eggs, signed Tiffany & Co., mounted in 18 carat white and yellow gold, diamonds approximately 2.00 carats total, gross weight 26.7 grams, width 4.8 cm