Do you have a sample of the Silestone Lagoon to look at with your tile. I think you are right that it might look slightly off but it's hard to know with out seeing it in person. I also think it might be difficult to find a solid white countertop that will play well with both the white in the tile and your white countertops. Maybe you should concierge a light to medium tone gray countertop. It will provide a little contrast and keep your room from looking too white (unless that is the look you want). I think it would look better not to have too much movement in the countertop since the porcelain carrara tile has lots of movement. I posted a picture earlier in this thread showing the Carrara look alike tile my daughter used in her bathroom. She opted for light gray cabinets and initially wanted a white countertop. She shopped remnants for her countertop and was not able to find something that didn't "look slightly off". She ended up using a black quartz that had some lighter speckles in it. She thought it looked better than a solid color. Perhaps you could find a grey with some flecks of dark grey, black or white in it. I've posted many pics of my daughter's bathroom on this forum but here's a few shots for you so you can see how contrasting colors work Since you probably don't want to go with black, maybe something like Silestones Ocean Jasper Or Moonstone Would work for you. If your not limited to Silestone Cambria has some options that might work too. Snowdown White Greystone Good look with your search for the right countertop.

When I was not madly in love with the carrara, this is the only glass/porcelain tile that i found that somewhat matched my vanity. They sell them at Home Depot I believe under the Merola brand. Not sure I love the penny mosaic with my square/rectangle theme. Here is a link that might be useful: Penny Mosaic

Sorry, I'm a novice here and can't figure out how to upload pictures, but I'm attaching a link to photobucket. The plan that has the HUGE shower does not have an 'enclosed' toilet. There would be a half wall with decorative frosted glass above to form a translucent screen. I'm not sure this actually works because the toilet area is only 4'5 wide. The plan with the smallest shower is the plan we are working off of at the moment. The plan with the toilet room and shower bisecting the window (we would replace the window with two, one in each area) works best in plan but I'm not sure how I would like it when it was built, with a box-like cube off to the side... Thoughts? I will also post a link to a photo on hgtv.com that was our original inspiration. Thanks to all. Here is a link that might be useful: Master Bath Plans

Oh I didn't think about cleaning the carrara... is it really that difficult? Ugh... I love the hex border idea. I thought about an area rug, but I'm nervous about getting the spacing wrong without the tub in place. Or having real rugs overlap with the tile one. I'm also nervous about putting them around the tub in case the tub goes in place and they are off centered or something. I have OCD fears ;) Thank you for showing me photos of your lovely bathroom shanghaimom! Any suggestions for a backspash? I'm thinking about a blue-ish wall color too. This bathroom is so pretty: