A-listers are notorious for marriages that last about as long as a pair of shoes, but one thing’s for sure—they definitely know how to pick engagement rings that stand the test of time. Whether it’s a classic round cut or a sapphire heirloom, we’ve gotta hand it to this current bunch of brides for the sparklers on their left hands.

Amal Clooney

7 carats; estimated worth = $750,000

Jennifer Aniston

8 to 9 carats; estimated worth = $500,000

Blake Lively

7 carats; estimated worth = $2 million

Eva Longoria

Size and cost unknown; swapped for a band after the wedding as it was “too much bling.”

Beyoncé

18 carats; estimated worth = $5 million

Kate Middleton

Sapphire fringed with 14 diamonds; estimated worth = $137,000

Julianne Hough

6 carats; estimated worth = $350,000

Kim Kardashian

15 carats; estimated worth = $8 million (Her last engagement ring, from Kris Humphries, cost $2 million but sold for only $749,000 at auction after that 72-day marriage.)

Lauren Conrad

2 carats; estimated worth = $40,000

Mariah Carey

35 carats; estimated worth = $7 million

Miley Cyrus

3.5 carats; estimated worth = $250,000