Funny you should ask! We just walked another client through this same question! These countertops are a very simple eased edge (on a 3cm granite) with a 1" overhang everywhere besides the eating overhang, which is 14". (Note that a 2cm surface would require a laminated eased edge). Hope this helps!

What is the sink material? and Is there an island sink?

Sink: Rohl Allia Single bowl undermount fireclay sink # 6307 in white. There is no sink on the island in the kitchen. Hope this helps!- Sarah

is that a 1 inch over hang from the face frame or the cabinet door/drawer front?

It's from the face frame.