The "Rose of Dubai," a pear-shaped 25.02-carat fancy pink diamond was the top lot at Christie's "Magnificent Jewels" auction, where it fetched more than $6 million on Wednesday.

The diamond, "realized a staggering $240,000 per carat, with more than four potential buyers fiercely competing to acquire the magnificent gem," said Rahul Kadakia, head of jewelry for Christie's Americas, in a release issued Wednesday. The gem's winning bidder was Amer Radwan of Dubai.

"Diamonds of all colors, whether white, blue or pink, sparkled in our sale," Kadakia said in the statement.

Read more about the "Rose of Dubai", one of the most beautiful pink diamonds in the world at http://www.nationaljeweler.com/nationaljeweler/headlines/article_display.jsp?vnu_content_id=1001348992.