Last night Kim Kardashian dined at Mr. Chow with pal Ken Paves, and the reality TV star showed off her monstrous 20.5 carat diamond engagement ring from fiance Kris Humphries!

Earlier in the day Kardashian wore the Lorraine Schwartz bauble as she shopped in Beverly Hills, and the only time she took it off was when she went to sweat it out at the gym.

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The NBA star proposed to Kardashian last month in front of the cameras, and we'll get to see it all go down on an upcoming episode of Keeping Up With The Kardashians!  What was Kardashian's reaction when Humphries popped the question? "I didn't expect this at all. I was in such shock," she tells People.  "I never thought it would happen at home, and I never thought now."

Of course, planning a wedding isn't the only thing on Kardashian's mind these days -- after a magazine recently ran a piece suggesting she was pregnant, she shot down the rumors on her official blog.  Kim wrote, "This is crazy! I am NOT pregnant! Magazines can be so tricky with their wording! The inside states that one day I want a baby! But I’m not pregnant!  I can foresee lots of crazy, made up stories coming out in the near future and I certainly don’t have time to shut down every rumor. But believe that if you hear it from me, it will be true. Otherwise, don’t always believe what you read, dolls."

What do you think of her $2 million engagement ring?

Photos courtesy of Fame Pictures