Because Chow Tai Fook's second-generation Huanlian Lotus is solid and a gold bracelet. So the golden lotus is solid.
Lotus represents a good wish to be with you for two lives with one heart and one mind. Lotus in bud and lotus represent two kinds of life. It shows that Xu's life is not enough, and he has to have a heart-to-heart relationship in the next life, which shows that he has good expectations for love and wants to be with the person he likes forever.