Lot 215. A 19.64 carats, F colour, VS2 clarity diamond pendant necklace, by Sabbadini. Estimate CHF800,000 – CHF1,200,000 ($822,727 - $1,234,091). Photo Christie's Image Ltd 2016

The pendant set with a heart-shaped diamond, weighing approximately 19.64 carats, with pear-shaped diamond surmount, to the circular-cut diamond spectacle-set necklace and pavé-set diamond clasp, 41.5 cm, mounted in platinum and gold. Signed Sabbadini

Accompanied by report no. 5101173462 dated 11 April 2011 from the GIA Gemological Institute of America stating that the heart-shaped diamond is F colour, VS2 clarity.

Christie's. GENEVA MAGNIFICENT JEWELS, 18 May 2016, Geneva