Very rare Art Deco rounded pin brooch by Hayden W. Wheeler & Co., New York, circa 1930s, crafted in solid .900 platinum with impeccable millegrain work and fitted with a horizontal hinged pin bar and mechanical safety lock. Centered with a fine European rose-cut round diamond (0.75 ct, E color, VS1), surrounded by 60 graduated European rose-cut diamonds in calibrated French pavé totaling 2.71 ctw (E/F color, VS2). Accented by three channel-set stations of 29 calibre French-cut vivid royal-blue sapphires totaling approx. 0.87 ctw (origin noted as possibly Kashmir or Pailin). Weight 9.3 grams; 37mm diameter. Stamped with maker’s mark and signed “H W PLAT”. Very good conditions. All our diamonds and colored gemstones are naturally earth-mined. Any synthetic (lab-grown) stones will be clearly indicated in the description. Upon Request, Auction House may provide an appraisal. This will carry an additional cost. Appraisals are made by our in house GIA certified Gemologist.