sentences:  In 2009, Lau bought a 7.03 carat blue diamond for his daughter Josephine, that he named the "Star of Josephine" at Sotheby's for $9.5 million.In November 2014, Lau bought a 9.75 carat blue diamond for his daughter Zoe, at Sotheby's for $32.6 million, that he named "Zoe Diamond".He also bought her a Cartier brooch featuring a 10.1 carat ruby, that he named "Zoe Red" at Christie's for $8.4 million.