A painted enamel jar with branch and peony patterns from the Qianlong Period of the Qing Dynasty is on display at an exhibition in Luoyang Museum in Luoyang city, Henan province, April 22, 2018. [Photo/IC]

A woman looks at a pair of pink-ground famille-rose "trompe l'oeil" jars with covers from the Qianlong Period of the Qing Dynasty during a preview of Sotheby's autumn sale in Hong Kong, Sept 8, 2016. [Photo/IC]

A staff member from Sotheby's auction house displays the Falangcai Poppy Bowl, which according to Sotheby's is one of the greatest examples of Qianlong Falangcai porcelain in private hands, in Hong Kong, August 30, 2018. Sotheby's say the bowl is expected to fetch in excess of 200 million Hong Kong dollars ($25.48 million) at their forthcoming Chinese Works of Art autumn sale on October 3, 2018. [Photo/IC]

A staff member from Sotheby's auction house displays the Yamanaka Reticulated Vase with a blue enamel seal mark from the Qianlong period, in Hong Kong, August 30, 2018. The vase is estimated to be worth 50 to 70 million Hong Kong dollars ($6.37 million to $8.92 million) and, according to Sotheby's, is expected to fetch multiples of the estimate at their forthcoming Chinese Works of Art autumn sale on October 3, 2018. [Photo/IC]

A red lacquered round box from Qianlong Period of the Qing Dynasty is on display at the Hainan Museum in Haikou city, Hainan province, Aug 3, 2014. [Photo/IC]

A staff member from a boutique shows a replica of a gold bowl used by Emperor Qianlong in Suzhou city, Jiangsu province, Dec 19, 2009. [Photo/IC]

A gilded bronze incense burner in the shape of auspicious beast from Qianlong Period of the Qing Dynasty is on display during a preview of Poly Auction's spring sale in Hong Kong, March 9, 2017. [Photo/IC]

The painting Double Peonies was created by Qing Emperor Qianlong in his 71-year-old, and was stamped with many seals after finished. The painting was on display at an exhibition in Luoyang Museum in Luoyang city, Henan province, April 22, 2018. [Photo/IC]