‘Diamondtaire’ Lawrence Graff recently loaned the famed Wittelsbach-Graff diamond to the Smithsonian. The rock (it’s 31 carats, so it’s actually pretty much a boulder at that point) is displayed nearby the Hope diamond, donated by Harry Winston. The new blue duo is temporarily forming quite the power couple of diamonds! The Wittelsbach-Graff was featured on the cover of the 196-page, hardcover coffee table book, The Most...