Auctioned in New Zealand for the equivalent of $418,450, the shoes required a full-scale security contingent to keep the 21.18 carats of diamonds safe. (Photo: www.chinanews.com)

Auctioned in New Zealand for the equivalent of $418,450, the shoes required a full-scale security contingent to keep the 21.18 carats of diamonds safe. (Photo: www.chinanews.com)