I definitely agree with emmarene. Stand outside by those large rocks and select something that complements the rocks.

Do you know the brand of product you will be using? Is your heart set on stacked stone?

The deep green of the exterior singles, in combination with any landscape ledge stone you are keeping and not replacing are the dictators. Your interior selections are secondary to a cohesive look on the exterior. This is something that should be done/selected locally if possible. With samples dragged to the site. Most stone shops have worked with local builders, and are very knowledgeable as to a recommendation for your choice/color of siding, and style of home.

http://www.stoneyard.com/gallery/foundation/

I agree get the exterior stone first and IMO stacked stone is sooo yesterday I would think about something else for fireplace

Hey, moosepointloft! The picture doesn't show properly but we've got a Flex Stone with a deep green fraction on it. PLease have a look!