Illyrio is tall and morbidly obese, with an oiled forked yellow beard and crooked yellow teeth.[1] He has pig's eyes and fat cheeks. He has a huge white belly and a pair of heavy breasts that sag like sacks of suet covered with coarse yellow hair. His bedrobe is large enough to serve as a tourney pavilion.
He reminds Tyrion of a dead sea cow that once washed up in the caverns under Casterly Rock. When he laughs his flesh bounces vigorously. He tends to stroke one of the prongs of his oiled yellow beard, a gesture which Tyrion finds remarkably obscene.
While in the litter with Viserys and Illyrio on the way to Khal Drogo's manse, Daenerys can smell the stench of Illyrio's flesh through his heavy perfumes.
The gemstone rings on his hands are onyx and opal, tiger’s eye and tourmaline, ruby, amethyst, sapphire, emerald, jet and jade, a black diamond, and a green pearl. Tyrion thinks to himself that he could live for years on those rings, though he'd need a cleaver to claim them.