Celebrity Engagement Rings...

For the rich and famous, the only way to flaunt your new engagement is to rock a huge diamond ring.

But not all celeb brides-to-be go the Mariah Carey route and sport fist-sized bling. For some, a unique but tasteful ring is preferred -- think colorful stones and modest diamonds. 

We found seven of the most beautiful, unique and yet tasteful celebrity engagement rings -- check them out in the pictures below

Halle Berry

Olivier Martinez proposed to Halle Berry in 2012 with this unique emerald ring.

Keira Knightley

Keira Knightley's two-carat engagement ring, from now-husband James Righton is surprisingly modest. Knightley and Righton became engaged in 2012 and married in May. Post-wedding, Knightley added a yellow gold band to her ring finger for a trendy mixed-metal look.

Jessica Simpson

Jessica Simpson's unusual engagement ring, from boyfriend Eric Johnson, features a ruby surrounded by diamonds. Simpson and Johnson have been engaged since 2010.

Anna Paquin

Anna Paquin's ring, from now-husband Stephen Moyer, features an unusual rustic diamond. Paquin and Moyer married in 2010.

Dania Ramirez

"Heroes" actress Dania Ramirez said her fiance, director John "Bev" Land, designed her distinctive engagement ring. They married in February.

Kate Middleton

Prince William gave Kate Middleton the ring his mother, Princess Diana, chose when she became engaged to Prince Charles in 1981. William and Kate married in 2011, and we all have Kate to thank for making colored engagement rings so trendy!

Louise Roe

TV host Louise Roe tweeted about her engagement in December 2012, sharing this photo with the caption, "Guys I have some exciting news to share, I am engaged! I was given my great-grandmother's aquamarine ring, i LOVE!" Her fiance is Abercrombie & Fitch model Josh Slack.