A Diamond Necklace. Photo: Christie's Images Ltd 2012

The front suspending a circular-cut diamond graduated swag, to the overlapping baguette-cut diamond band, mounted in platinum, 15 ins. Lot 176. Estimate $40,000 - $60,000

“The understated yet sophisticated design of this diamond necklace makes it suitable for many different occasions. It would be at home in the collection of both new and established collectors.” – Rahul Kadakia, Head of Jewelry Department 

Christie's. New York Important Jewels. 12 June 2012. New York, Rockefeller Plaza