Dave Franco and his actress girlfriend, Alison Brie have gotten engaged. Apparently, the expensive ring is a rose gold ring set with rose cut and pave diamonds.

According to Us Magazine:

And while Brie waited until Monday night to officially reveal her news and debut her stunning ring on the red carpet of her Sleeping With Other People premiere, a source tells Us that actor Franco was celebrating his happy announcement with friends earlier that night.

Dave's brother, James Franco also jumped in on congratulating the couple.

Congrats Davy and Allison!!!engaged!!!I WUUUUUV YOU❤️

Posted by James Franco on Tuesday, August 25, 2015

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