The reality TV star is reportedly eager to marry as soon as possible and the couple are planning a wedding shower in a month followed by the ceremony soon after.
Kim's basketball star boyfriend Kris Humphries proposed last month with a 20.5 carat Lorraine Schwartz diamond ring.
A source told HollywoodLife.com: "The wedding will happen within six to eight weeks.
The wedding shower will take place about a month from now, they're doing things very, very quickly. It's being fast-tracked."
Las Vegas
Keeping Up With The Kardashians star Kim is also planning a bachelorette party in Las Vegas in the next few weeks to be attended by close pals Ciara, Kelly Rowland and Brittney Gastineau.
Friends of 30-year-old Kim have previously revealed she is hoping her wedding will rival that of Britain's Prince William and Princess Catherine, who married in Westminster Abbey in April.
A pal said: "Kim is planning the wedding of the century. She doesn't see why a royal wedding should get more attention that hers. She sees herself as a bigger celebrity than Kate Middleton."