18K YELLOW GOLD, RUBY, TURQUOISE, AND DIAMOND LOW-DOMED CIRCULAR PIN,1960's. Circle of gold rays with off-set domed ornament constructed of two tiers of matched round turquoise cabochons alternating with two tiers of matched round rubies topped by bezel-set round diamond accent. - Dia.: 1 5/8 in.; gross wt.: 12 dwt. Estimate $300-400