18. Lady Gaga – $500,000
Next up, we have the engagement ring of Lady Gaga.
If you know anything at all about the performer, you’ll know that she’s pretty flamboyant and likes to do things big!
So, it’s no surprise that her engagement ring cost so much money. The ring is a unique heart-shaped solitaire diamond of roughly 6 carats, made by Lorraine Schwartz.
And to give it a more personal touch, the ring also includes the couple’s initials engraved on the inside of the platinum band.