Damon knew that Emily loved art so he came up with the perfect art proposal for her.
The day before the proposal Damon rented the Charles Engelhard Court in the American Wing at The Metropolitan Museum of Art for the fake Art Auction he hired thirty actors to play buyers and the Auctioneer. Damon hired set designer Robert Montebello to decorate the entire room with Art Auction props to make it look as authentic as possible. Every single item in the auction was relevant to Damon and Emily or was something that Emily loved. Damon and Emily went to the "Art Auction" they next day the first item was a canvas with a painting of the Rocky Mountains on it because of where Damon and Emily met in Boulder, Colorado the next item was a canvas on stars because of the starlight lounge where Damon and Emily had a date before Damon went to los Angeles. After a few more items were sold all of a suddenly one of the "buyers" at the auction got up and started to singing sparks fly by Taylor Swift which was Emily's favorite song after the song Damon got down on bended knee and pulled out a little black box in the box was a ring Emily saw a year ago at tiffany and co and fell in love with Damon took Emily's left hand and ask her will you marry me? Emily said yes and Damon put the ring on Emily's hand. The final piece of artwork for the Art Auction was actually a picture of Emily's hand with a ring she had tried on year ago and loved Damon had secretly took a photo of the ring on her hand because he knew that ring would be her engagement ring when he proposed to her .