I do not have Bianco Perle, but just wanted to let you know that Menard's Quartz is other name brand quartz sold under the Riverstone name - so good quartz. I have the Flaked Pearl, which is LG Viatera White Pearl - even had the LG label on the bottom of one piece:) The"Cotton" is HandStone's "Cotton", though I don't know who makes the Bianco Perle or what its other name is. Mine also is 3cm - so a good thick counter.

I had a problem with my island piece and the Riverstone fabricators were very responsive to my problem, so decent customer service. I did need to find my own installer since Menard's doesn't install, but I found one who came out and did a digital measurement which was very helpful.