Kate Middleton's Hats Hit Auction Block

Kate Middleton Hats

Photos: Getty Images

The Duchess in the Philip Somerville hat (left) and the black "Aurora" picture hat (right).

A year after auctioning off the sheer dress modeled by Kate Middleton on the night she first caught Prince William's eye, a London auction house is set to sell more treasures from the Duchess' closet.

The "Passion for Fashion" auction hosted by Kerry Taylor Auctions on June 26 will feature two hats worn by Middleton prior to her marriage, with each expected to fetch between £1,000 and £1,500 apiece (about $1,500 to $2,300 U.S.).

Up for grabs is a black and white straw topper from Philip Somerville featuring a woven horsehair brim, which the brunette beauty wore on June 16, 2008 when Prince William was presented with the Order of the Garter.

The black "Aurora" picture hat, meanwhile, was worn to Harry Meade's wedding on October 23, 2010, and boasts a swilring organza crown and an open-weave brim accented with two plumes.

Given that Middleton's sheer dress raked in a jaw-dropping £78,000 (roughly $125,000 U.S. at the time), the hats will no doubt exceed their estimated bid price.

Still, they're not without competition. A white "Smooth Criminal"-esque fedora worn and autographed by Michael Jackson has a high bid of £10,000 ($15,300 U.S.), while vintage couture and outfits belonging to Elizabeth Taylor and Ava Gardner will also be auctioned off.

Maybe now's a good time to hit up your boss for a raise?