To me it doesn't look like it's veneered all over. Looks like a green band on a black/brown base, which I don't recognize as a Vitro variation. And with it being in Holland I can't help thinking it could be a foreign marble.
Thanks Robert! I also like to reach out to sellers who look like they mean well but are just harried. Gotta remember most of them are people doing the best they can in unfamiliar territory.