But the design is so classic that it's super easy to find without resorting to dropping major cash for the Tom Ford original!
We found two equally affordable options that are super similar to Kate's dress.
Check 'em out ...AFTER THE JUMP!!!
A Twitter spy spotted the impeccably dressed fashion maven at the Conde Nast cafeteria on Thursday afternoon, and while there are other magazines inside the 4 Times Square building, we're inclined to believe Posh was there for one mag and one mag ONLY.
For her visit, the designer was dressed to impress Anna Wintour in an exquisite look from her A/W 2013 collection — purple center slit skirt and mocha blouse with black cuffs — and Casadei pumps.
Have fun Vogue-ing away, Posh! You've earned it!
[Image via AKM-GSI.]