18 Karat White Gold and Diamond 'Constellation' Necklace, Nirav Modi - Photo Sotheby's

The bib-style necklace set with 298 round diamonds graduating in size and embellished by a knife-edge frame, flexible in design allowing the piece to contour to the wearer, the diamonds weighing a total of 105.10 carats, internal circumference approximately 15½ inches, with maker's marks; a 1 inch segment detaches making the length adjustable. With signed and fitted presentation box. Estimation: 350,000 - 450,000 USD

Accompanied by a Certificiate of Authenticity from Nirav Modi.
Accompanied by 141 GIA reports stating that a selection of diamonds in the necklace range in size from 1.41 to .30 carat, G to H color, and VVS2 to VS1 clarity.

Sotheby's. Magnificent Jewels. New York | 05 déc. 2012, www.sothebys.com