Lot 42. A massive black jade ceremonial blade, Late Neolithic period; 56.7 cm, 22 ¼ in . Estimate: 1,000,000 - 1,500,000 HKD . Unsold. Courtesy Sotheby's. impressively worked from a dark olive-green stone with natural brown and white inclusions, the long...

Four hardstone discs, China, late Neolithic period to Qing dynasty, 4th century BC to 1911 AD. Diameters: from 3 inches, 7.7 cm to 1 1/4 inches, 3.3 cm. © Ben Janssens Oriental Art. Four circular hardstone discs, each with a round hole cut to the centre,...

A group of ceremonial tubes , most produced by the Liangzhu culture 良渚 (ca. 3300-2250 BCE), Late Neolithic period, ca. 5000-1700 BCE, Jade (nephrite), Gifts of Charles Lang Freer, Arthur M. Sackler, and Dr. Paul Singer. © 2016 Smithsonian Institution...