User blog comment:Darkcloud1111/''The Mark of Athena'' Plot Holes/@comment-3146930-20121012190657/@comment-3146930-20121014214839

Sort of. Sammy sold the diamond after Hazel vanished in Alaska. He promised her he would always be there for her, but he would die before she had to face her great danger. He saw the curse as him not being there for her when she needed him, as her great danger would not happen in his life time.