Gem-set, pearl collar necklace, composed of two strands of cultured pearls strung to a diamond and ruby-set clasp (the pearl strands just under 15&quot; in length), mounted in platinum and 18k yellow gold, suspending a graduated five strand pearl tassel with circular-cut rubies bezel-set in 18k yellow gold (the longest of the strands approximately 2.5&quot; in length).