Jiang Ciyou was taken by surprise. Her birthday was just two days away. Bo Jinxu produced a gift bag from beside him. "For your birthday," he said. "See if you like it." Jiang Ciyou took the bag and pulled out an exquisite red velvet box. She opened it. Inside lay a diamond necklace. The design was striking: a brilliant yellow diamond nestled within a setting of black diamonds. The deep, solemn bl