"Oh, here. Let me." Sanji moved in to assist, sweeping aside her hair with a hand in order to find the clasp and close it. He was beside himself with joy that she liked it, and found himself briefly wondering if Nami would ever accept a gift like this from him...without checking to see how valuable the stone was and if she could sell it...

He shook it off and smiled brightly. "There. Now you can think of the sea whenever you wear it."