When Gaga's man was getting ready to pop the question, he turned to famed jeweler Lorraine Schwartz, who has designed engagement rings for major celebrities such as Beyonce and Kim Kardashian.
In an exclusive interview with In Style, Lorraine revealed that the shape did make it a little challenging. "It's a challenge to get an excellent heart shape with perfections-the shoulders of the gem have to be totally symmetrical; Lady Gaga's is all that," she told them.
Of course, whenever a celebrity gets a big rock, there are always people speculating about how much it might have cost. Lorraine obviously isn't going to reveal the cost of the ring, but she did say that, "the stone is big and quite beautiful, and actually more expensive than some of the estimates I have read."
For what it's worth (no pun intended), we've seen estimates of $400,000 and $500,000 so you can draw your own conclusions there!