A rivière necklace fashioned from platinum and eighty-one round brilliant-cut diamonds, six baguette-cut diamonds, and one marquise-cut diamond, with the center round brilliant-cut diamond weighing approximately 1.60 carats, and the round brilliant-cut diamonds that flank it each weighing approximately 1.20 carats. Diamonds are near colorless (G - H), with SI - I clarity. Total estimated weight of diamonds: 22.00 carats.