Quartz is not seamed on the diagonal the way laminate is, and your quartz has a pattern to it that has a direction. This means the seam will be a little more noticeable. The pattern is subtle, so I am not sure how much the change of direction will show. If you can get two largish samples - maybe 12 x 4 at least, you can set them together like your seam and step back a couple of feet. How noticeable is the seam to you and will it bother you?

If you think the direction change will bother you, consider something with similar toned, but without the directional pattern. I have similar toned cabinets and love my LG White Pearl. I can't see my seam unless I get up very close. LG Soprano is much more subtle, and judging from computer pics - which is very hard as they aren't always the best - the Soprano has similar tones to the Delagtie.

Delagtie

LG Viatera Soprano:

There is a lot to chose from out there. If you don't like the change of direction at the seam, take your sample around and ask to see similar tones in other quartz.

Good advice re: an alternative choice if you feel you won't be satisfied by the seam placement.

I wonder if another option could be something like below: Don't turn the pattern when you go around the corner (orange are the counter pieces, blue is the pattern of the slab).

One thing about Delgatie is that is sort of has waves along the long direction that are subtle (those would be the pattern depicted in blue) but it also has a darker pattern that is more random - I could imagine that it's that aspect of the slab could be tricky if it ends up on a seam.

I think the other question is why choose the most expensive luxury color in Cambria for an existing kitchen door style that is no longer popular. I would get a granite top for less than half the price. Not only does a natural stone look more appropriate with your cabinet style and cost less, but it will seam more easily.

It is the standard overlay arched door style that doesn't go with quartz