By/ Yu Ying
In the 2020 year, the art auction market, though affected by COVID-19, has become the first year of classical (ancient) stone appreciation auction. From October 2020 to January 2021, three special auctions on ancient stone appreciation were held in a short period of three months. Moreover, most of the collected viewing stones are from well-known collectors, and there are many famous collections,which are unprecedented and worth recording.