I didn’t remember that. Hook and Gideon are trying to replace, but it is impossible. Neal is one of the characters, like Emma, that isn’t replaceable. His death is one of the reasons this show just doesn’t work anymore and it never will.
I still think it makes no sense at all that Emma would not wear the necklace. It is out of character, but Emma dating Hook is out of character. It is just one of many things that make no sense.