InstagramThis flashback photo of Princess Diana from 1990 is awesome!
Last week, Valentino's partner Giancarlo Giammetti posted an old pic of the late royal on Instagram in honor of TBT. In the vintage shot, Diana flashes some skin in a two-piece bikini with a purple shirt over it and big sunglasses while standing on a yacht next to a boy who looks like he could be a young Prince William.
Will, if it is indeed him, would have been six years old at the time; the boy flashes a giant smile while in colorful swim trunks.
Also in the pic, which was taken aboard Valentino's T.M.Blue One yacht, is Rosario Saxe-Coburg, wife to the Prince of Preslav, Bulgaria.
"Summer is here TBT princess Diana on the TMblue 1990 #princessdiana #rosariosaxecoburg," Giammetti captioned the throwback photo.
One thing's for sure: Diana sure had some glam summer yachting style!