A magnificent rectangular-cut diamond ring

The rectangular-cut diamond weighing 20.46 carats to the plain platinum hoop, ring size 6¼. Estimate CHF1,250,000 - CHF1,750,000 ($1,131,595 - $1,584,233) - Price Realized CHF2,171,000 ($1,965,354)

Accompanied by report no. 2105590828 dated 18 February 2009 from the GIA Gemological Institute of America stating that the diamond is D colour, VS1 clarity

With a working diagram stating that the diamond is Potentially Internally Flawless with a weight loss

With a note stating that the diamond is classified as a Type IIa diamond

Christi'es. jewels : The Geneva Sale. 13 May 2009. Geneva www.christies.com