I read up information that Grado made a collaboration with Dolce & Gabbana recently.
i guess its a business move. i dont think its too flashy or in-your-face kind of advertising/endorsement.
but yea, i even contacted Gradolabs via official facebook page and they responded that they did make that collaboration, but the headphones are ONLY sold through D&G.
pretty much looks to be a re-etched GS1K