Lot 190. A diamond necklace, Oscar Heyman, 1968. Estimate US$ 80,000 - 100,000 (€ 69,000 - 86,000). © Bonhams 2001-2018
designed as a graduated cluster set with marquise, pear and round brilliant-cut diamonds;with maker's mark, no.85560; total diamond weight: 54.25 carats; mounted in platinum; length: 16in.
Accompanied by a certificate of authenticity from Oscar Heyman, dated April 17th, 2018.