RUSSIAN YELLOW GOLD (56-FINE), OLD MINE-CUT DIAMOND, AND NATURAL PEARL, HINGED OVAL BANGLE BRACELET.19th century. Signed by goldsmith, "PH" in punchmark. Slender bangle centers cross-over design top section with natural pearl surrounded by ten old mine-cut diamonds, with four additional diamonds centered on rope-twist enhancements. Estimate $600-800