By Erika Winters
Christie's Hong Kong is offering the largest briolette-cut diamond to ever appear at auction at its upcoming Magnificent Jewels sale on May 28, 2013. Weighing 75.36 carats, the D color, type IIa, and internally flawless briolette diamond is suspended from a marquise-cut purplish-pink diamond. The diamond necklace is expected to fetch between $8.5 million and $12.5 million.