The pendant is relatively atmospheric, the safety buckle is relatively large, and Passepartout is relatively small. Your boyfriend can wear it. Your father should wear some bigger ones to show the charm of his age, and bigger pendants can also enhance your father's identity and status.
Dai Yu usually wants to be lucky and safe. Anyone who wants to get promoted and get rich can wear a golden hair crystal bracelet, and your boyfriend can wear it. If his arm is not particularly thin and the diameter of 14 is appropriate, it will be stingy if it is too small.
I produce crystals and jade articles in Shanghai. These are some experiences. I hope I can help you:)