The 'crack' extends through the cut-out

Showing a broader perspective of location. Closing date is in October so appreciate any opinions. Should I let it be or make a fuss over it?

It can be repaired, so yes make a fuss and have it done.

I think it looks inherent to the stone - a natural fissure - and not a problem. But I'm not an expert by any means. Making a fuss should get someone out there who is an expert and can explain whether it is a crack or a fissure, and why. So I think a fuss is not a bad idea.

Thanks Ellen. I asked the builder to inspect it. I'm sure they would gratefully 'repair' it rather than 'replace'. We do have a reputable builder but Im certain they will do everything possible NOT to replace it. I think if I bought something new it should be delivered new, not repaired. I don't have the granite expertise to know if it is in fact a crack. Considering hiring someone to look at it but thought I'd check in here first.

Thanks Ginny...I was typing my last message while you posted :) I do so hope you are right about the natural fissure! The homesite is an hour away but I'll be up there to take some better pictures this weekend. I forgot to look underneath and that might help give a better idea.

I am a granite fabricator.

It's a crack; most likely a natural fissure in the stone that opened a bit due to the mechanical stress of fabrication and installation. More typically you'd see such a crack on the rail of a countertop in front of or behind a sink where the rail is only 3 or 4 inches wide.

In your location it's not a structural issue at all. If it's not a cosmetic concern for you I wouldn't worry about it. If it makes you feel better the fabricator can seal the crack with a low viscosity epoxy. Stone is a natural material and as such is going to have imperfections like this.

Note if the crack was in the front rail of the sink I be suggesting it'd be repaired or replaced.

It's cracked. But not in a difficult place to repair, with epoxy like oldryder has stated. I think you can leave it without harm.

I have a similar (less evident) fissure in my 3 slabs, evident to greater or lesser extent in at least 21 successive slabs. Maybe a couple of feet long. Cannot really be avoided totally, but I can avoid it for the narrow parts around the sinks.

Should I have the fabricator rod the area, even if it is in the middle of a fairly wide expanse (counter or island)?