Jennifer Hudson's stunning Neil Lane engagement ring. Photos by Getty Images

Yes, Jennifer Hudson is already engaged. The "Dreamgirls" Oscar winner was proposed to by David Otunga (aka "Punk" from the reality show "I Love New York 2") on her 27th Birthday last September with a huge 5-carat round center stone surrounded by diamonds and set in platinum ring by jeweler to the stars, Neil Lane.

But in a Sadie Hawkins Day turn of events, Hudson proposed to her already fiancé on his Birthday. (Think "Pretty Woman" line, "she rescues him right back.")

And this was no subtle return-the-favor proposal, Jennifer surprised Otunga with an equally impressive 5-carat diamond and platinum engagement ring, also by Neil Lane.

Bling fit for a king. Photo courtesy of Neil Lane

People reports:

"The handmade 'architectural and geometric' platinum and diamond men's ring is 'masculine, yet has a lot of sparkle,' says Lane, who also designed the engagement ring Otunga gave Hudson last fall. 'Jennifer and I went through lots of different designs, talked about it a lot and she was very open.'"

According to People, there was one small glitch, Hudson didn't know her fiancé's ring size. So, when she presented him with the ring last month, it was too big. Last weekend the couple made it over to Neil Lane in Los Angeles, Calif. to have it sized. How fitting?

Well, if you add his 5 carats to hers, you've got a perfect 10 couple!

Celebrity Engagement Rings

    Celebrity: Gisele Bundchen
    Other Half: Tom Brady
    State of Union: Married
    Cut: Round
    Total Carats: 4
    Estimated Cost: $100,000

    "Gisele's ring is a large round brilliant solitaire which is the perfect diamond engagement ring for a gorgeous classic beauty."

    Scott Wintrow, Getty Images

    Celebrity: Jennifer Hudson
    Other Half: David Otunga
    State of Union: Engaged
    Jeweler: Neil Lane
    Cut: Round Brilliant
    Total Carats: 6
    Estimated Cost: $80,000

    "Jennifer designed this very unique ring set with her fiance and Neil Lane. The all micro-pave ring is set on a split-shank band which is a style that is coming back in popularity."

    Leon Bennett, WireImage

    Celebrity: Salma Hayek
    Other Half: Francois Henri Pinault
    State of Union: Married
    Cut: Three Stone Cushion
    Number of Carats: 8
    Estimated Cost: $200,000

    "Salma's ring is a three stone diamond ring which is a very romantic design for a true Old Hollywood glamour girl."

    Jason Kempin, WireImage | Fame Pictures

    Celebrity: Mandy Moore
    Other Half: Ryan Adams
    State of Union: Married
    Cut: Round Brilliant
    Total Carats: 4
    Estimated Cost: $65,000

    "This is a combination of engagement and wedding rings which fits because she went straight to the alter."

    Steve Granitz, WireImage

    Celebrity: Ali Larter
    Other Half: Hayes MacArthur
    State of Union: Engaged
    Cut: Emerald
    Total Carats: 4
    Estimated Cost: $60,000

    "This diamond ring shows off Ali's feminine side with its delicate pave detail while still being large enough to give her enough sparkle on the red carpet."

    Kevin Mazur, WireImage

    Celebrity: Katherine Heigl
    Other Half: Josh Kelley
    State of Union: Married
    Jeweler: Ryan Ryan
    Cut: Pear
    Total Carats: 4
    Estimated Cost: $65,000

    "Katherine's husband Josh designed this modern ring with Ryan Ryan--who the actress wears exclusively."

    Gregg DeGuire, WireImage | Frank Micelotta, WireImage

    Celebrity: Portia de Rossi
    Other Half: Ellen DeGeneres
    State of Union: Married
    Jeweler: Neil Lane
    Cut: Marquis (set sideways)
    Total Carats: 4
    Estimated Cost: $90,000

    "Ellen worked with Neil Lane to create this ring which is an update on the Marquis. It's more Portia by throwing pink paves around the cornerstone."

    Angela Weiss, Getty Images

    Celebrity: Beyonce
    Other Half: Jay-Z
    State of Union: Married
    Jeweler: Lorraine Schwartz
    Cut: Emerald
    Total Carats: 18
    Estimated Cost: $5 million

    "This is an investment piece. It's so rare, so large, and so clean. It's sort of like having money in the bank. It's better than having a 401K."

    Steve Granitz, WireImage | Kevork Djansezian, Getty Images

    Celebrity: Christina Aguilera
    Other Half: Jordan Bratman
    State of Union: Married
    Jeweler: Stephen Webster
    Cut: Vintage Round Brilliant
    Total Carats: 5
    Estimated Cost: $120,000

    "She's a throwback to Hollywood glamour and she definitely shows that with this vintage ring."

    Gregg DeGuire, WireImage

    Celebrity: Eva Longoria
    Other Half: Tony Parker
    State of Union: Married
    Jeweler: Jean Dousset
    Cut: Emerald
    Total Carats: 5+
    Estimated Cost: $135,000

    "Eva's a big jewelry girl, but this is a luck for her. It definitely shows her romantic side with the emerald cut."

    Steve Granitz, | Kevin Winter, Getty Images