Hong Kong at a price of HK$15 per share under the stock code (ticker symbol) 1929, the year of establishment of the chain. On 4 April 2017, according to Sotheby's, Chow Tai Fook (the press release claimed it was jeweller Chow Tai Fook but Financial Times, quoting Sotheby's tweet, reported it as Chow Tai Fook Enterprises) acquired the Pink Star diamond at an auction in Hong Kong for US$71.2 million (HK$553 million). On 23 May 2018, the Gemological Institute of America (GIA) partnered with Chow Tai Fook on a pilot program that will use blockchain to deliver digital diamond-grading reports. On 17 January 2020, Chow Tai Fook Jewellery Group acquired the natural-coloured gem specialist ENZO. As at 31 December 2022, the group had 7,404 points of sale in total, including 7,259 POS in Mainland China and 145 combined in Hong Kong & Macau of China and other markets. The Group added a net of 435 POS during the 3Q of FY2023. *"shop-in-shop"/"counter-in-shop” excluded Incidents Chow Tai Fook Jewellery has fallen victim to major crime a number of times. In 1966, diamonds worth HK$1.23 million at that time, were stolen during transport from South Africa. In 1974, diamonds worth HK$250,000 were stolen from the staff of Chow Tai Fook Jewellery in Manning House, Central, Hong Kong. In 1980 and 1981, the Kowloon City branch was hit twice by armed robberies. The thieves also injured a staff member of the jewellery store and a student walking nearby in the second robbery. In 1985, in front of the Kowloon City branch, a gunfight broke out between the Royal Hong Kong Police and the robbers, in which a policeman was injured. On the same day, a man with a gunshot wound arrived at the hospital, who was suspected to be one of the robbers. In 1989, armed robbers disguised as customers stole luxury watches from the branch. It was reported the watches had a worth of HK$5 million at that time. In 1991, the Kowloon City branch suffered another armed robbery, followed by the robbery of the branch in Central in September and again in October 1991. In 1998 another branch in Paterson Street, Causeway Bay was robbed by . Kwai Ping-hung, who was also involved in other crime where he was deemed Hong Kong's most wanted man. In recent years, however, the company has seldom experienced armed robberies. Notorious robbers Yip Kai Foon