We have no idea why Lauren Conrad covered up her gorgeous engagement ring while exiting an El Lay grocery store on Sunday with fiancé William Tell!
She was all about flashing the stone inside the market, but as soon as it hit sunlight—the bling went into the pocket protection program, and fast!!!
We can't get enough of this adorbz duo, and hope they're enjoying every second of this engagement!
But next time…Let's see that sparkler!
[Image via Dean/Kido/National Photo Group.]