Bling, bling!Beyonce is finally showing off her engagement ring, and it’s worth a whopping $5 million!The singer/actress, who tied the knot to Jay-Z in April, wore the Lorraine Schwartz stunner on the red carpet at Conde Nast’s Fashion Rocks event in NYC Friday night.Check out gorgeous celebrity wedding photos.The ring features an 18-carat flawless diamond set in platinum. (Jay-Z finally debuted his wedding ring in NYC on July 29 – three months after their secret ceremony at his NYC apartment)See how much celebs paid for their engagement rings.In addition to her ring, Beyonce showed off her bod in a short black frock on the red carpet. She recently lost the 20 pounds she packed on to play Etta James in Cadillac Records.Gaining weight ‘was so much fun,’ she says in October’s British Marie Claire. But when she later landed a part in the psychological thriller Obsessed, ‘I had to lose it,’ she laments. ‘I was so angry with myself. I was like, ‘D’oh! Why do you have to go through this?”How strict is her diet these days?Before her Marie Claire shoot, she stipulated her catering needs: ‘No chips, no candy, no desserts, no junk food, no fried food.’Check out photos of Beyonce’s fashion through the years.