Art Deco Platinum and Diamond Three-stone Ring, Gattle, prong-set with three old European-cut diamonds weighing approx. 1.29, 1.87, and 1.31 cts., the scrolling shoulders bead-set with eight old single-cut diamond melee, engraved highlights, open gallery with millegrain accents, approx. total diamond wt. 4.55 cts.
Art Deco Platinum, Sapphire, and Diamond Plaque Brooch, Marcus & Co., centering three step-cut sapphires, with baguette- and fancy-cut diamond edges, and set throughout with transitional-cut diamonds, approx. total diamond wt. 4.30 cts., lg. 2 1/8 in., signed, in original box.
Art Nouveau Opal, Diamond, and Enamel Brooch, Marcus & Co., centering an opal matrix cabochon within a scrollwork frame, and suspending a conforming drop, set with seventy-six old mine- and old European-cut diamonds, approx. total wt. 4.00 cts., platinum and 18kt gold moun