AN ART DECO EMERALD AND DIAMOND JABOT PIN, BY MARCUS & CO. - Each terminal set with a carved cabochon emerald, within a circular, baguette and marquise-cut diamond pierced openwork shield-shaped plaque, accented by cabochon onyx and triangular-shaped cabochon emeralds, mounted in platinum, (may also be worn as a pair of clips), circa 1920.
*AN ART DECO EMERALD AND DIAMOND CLIP BROOCH, BY TIFFANY & CO. Set with an oval cabochon emerald, within a circular and baguette-cut diamond geometric frame, mounted in platinum, circa 1925 Signed Tiffany & Co.
AN ART DECO EMERALD, SAPPHIRE AND DIAMOND JABOT BROOCH, BY CARTIER Of geometric design, the shield-shaped plaque centering upon an old European-cut diamond panel, enhanced by a calibré-cut sapphire stylized arrowhead, extending a carved emerald demi-surround, of foliate motif, with a navette-shaped diamond and calibré-cut sapphire accents, to the detachable terminal, of similar design, mounted in platinum, circa 1925
An Art Deco Platinum, Pearl, Ruby and Diamond Necklace/brooch, E. Intricate openwork central platinum geometric plaque with millegrain accents suspending two pearl and three diamond pendants, plaque is suspended from two platinum navette sha
Platinum-Topped Gold, Sapphire and Diamond Pendant-Brooch, Marcus & Co. Centred by a pear-shaped sapphire weighing approximately carats, within scrollwork surrounds set with old European-cut diamonds weighing approximately carats, signed Marcus