<table border="0" align="right" width="450"><tr><td><img src="http://www.wineloverspage.com/graphics1/diam.jpg" border="1"></td></tr></table>Frankly, I don't think it is ... it looks more like a Neocork or Novacork style synthetic, with a slick skin around the circumference of a light, very finely granulated center. But it's not quite the same - the center portion isn't as foamy, and the color is very close to natural cork. The odd logo appears to be the producer's, Yves Grassa of Domaine de Pouy. Does anyone recognize the stopper? If it <i>is</i> a Diam, I'd like to confirm that, as it would be my first.