The 12 Most Expensive Celebrity Engagement Rings

1.Jennifer Aniston's new bling dims in comparison to one superstar's $5M ring.

Jennifer Aniston stepped out earlier this week finally revealing her huge engagement ring from fiancée Justin Thoreaux. The couple got engaged August 10th during Thoreaux's birthday celebration in New York City.
The 43-year-old actress follows a long line of recently engaged stars from Miley Cyrus to Sofia Vergara.
However, none of the engagement rings of late amount to the most expensive in Hollywood.
Let's just say Beyoncé wears some serious bling and Jennifer Lopez doesn't sing "Don't be fooled by the rocks that I got" for nothing.

While Aniston's ring is estimated at a costly $500,000, hers isn't the priciest celebrity bling by a long shot.

2.

Specs: 10 carat yellow diamond
Klum ended her seven year marriage with Seal in January.

3.

Carrie Underwood: $150,000

Specs: Yellow diamond
Underwood became engaged to hockey player Mike Fisher at the end of 2009.

4.

Britney Spears: $200,000

Specs: Neil Lane 3.5-carat diamond
Spears got engaged to Jason Trawick in Las Vegas December 2011.

5.

Angelina Jolie: $250,000 (estimated)

Specs: 16-carat flawless Emerald cut diamond designed by Robert Procop
Brad Pitt helped design the diamond for Jolie for a nearly a year with Procop before he proposed in April 2012.

6.

Kate Middleton: $500,000 (estimated)

Specs: 18-carat, blue oval sapphire set in white gold
Prince William gave Middleton the blue sapphire previously worn by Princess Diana.

7.

Jennifer Garner: $500,000

Specs: 4.5-carat cushion cut
When it comes to rings, Affleck splurges presenting Garner with the Harry Winston ring in 2005. This isn't the last time he'll appear on the list.

8.

Khloe Kardashian: $850,000

Specs: Specs: 12.5 carat
Khloe revealed she nearly lost the ring from basketball player Lamar Odom in 2010 on an episode of "Keeping Up With the Kardashians."

9.

Kim Kardashian: $2 million

Specs: a Lorraine Schwartz 20.5 carat ring featuring a 16.5-carat emerald center.
Before their 72-day wedding, now ex-husband Kris Humphries bought Kim a ring worth nearly half the price of her Beverly Hills home.

10.

Mariah Carey: $2.5 million

Specs: 17-carat pink diamond
Nick Cannon proposed to to the now "American Idol" host back in 2008.

11.

Jennifer Lopez: $2.5 million

Specs: 6.1-carat Harry Winston pink diamond
Ben Affleck gave Lopez one of the most expensive rings when they were together in 2002.
Her reported 8-carat ring from ex-husband Marc Anthony has been valued anywhere from $1 million to 4 million.

12.

Beyoncé: $5 million

Specs: an 18-carat emerald cut Lorraine Schwartz flawless diamond set in platinum
The singer first showed off her rock at Radio City Music Hall in September 2008 after she and Jay-Z tied the knot April of that year.