island of Hokkaido in Japan ... especially for the most exceptional specimens. A black jumbo watermelon auctioned in northern Japan fetched a record $6,100 in 2008, making it the most expensive ...

Famous for its black skin and refreshing, sweet flesh, the Densuke watermelon is a rare gem cultivated only in Japan's Hokkaido. The scarcity of production pushes its price up to Rs 5 lakh.