I just purchased Calacatta Classique Quartz and here are my photos and I hope this helps you. My designer chose this one because it was the whitest and had gray veins (some can be a little on the brown side).

Have Silestone Calacatta gold. Needed 2 slabs. Matched well, but there is verrrrrry little gold, but went with it anyway because we preferred the veining over Classic. You must go and see the actual slabs side by side to compare the look. And don't forget to look at the different finishes.

I love what Michael used on his counters and like the fact the veining is more subtle. We are using ours around a window to create impact but did something simple on our kitchen counters (Rodi Quartz) which has even less veining and looks more like what he chose. LOVE it.