CARVED JADE AND DIAMOND BROOCH, CIRCA 1930.  The jade plaque carved with an intricate knot symbolizing luck, bordered by segments of baguette and single-cut diamonds at the sides, weighing a total of approximately 1.15 carats, mounted in platinum. Art Deco Jewelry Rings, Bijoux Art Deco, Jade Jewelry, Sea Glass Jewelry, High Jewelry, Luxury Jewelry, Gemstone Jewelry, Jewelry Design, Vintage Jewellery