It's hard to tell without pictures. Can you post some pictures? You can custom color the veneer to match the existing stone. Or you can choose a stone that has more of a traditional feel.

A Rumford design is very shallow, has outward-flaring sides, a back that arches forward, a curve on the underside of the front lintel leading back to a broad slot-like flue with a flue chamber above it. The overall front opening is almost square, sometimes slightly taller than wide. Rumford fireplaces are very distinctive looking. You can get some basic information from this wikipedia article here: https://en.wikipedia.org/wiki/Rumford_fireplace and there is plenty of info online, even ready-made reproductions (more or less accurate). Rumford developed his improvements and published them in the late 1790s, just before fireplace heating was displaced by stove heating (a process already well underway when Rumford developed his improvements). Good luck with your whatever you decide to do.

Hi, Congratulations on your new home! It seems really lovely place. I'd like to know whether are you planning on renovating whole space or just changing the furniture? If you are only going for furniture, here are few images of couch attached, please have a look. I say, align the couch along the walls so that you can get more area to use. Go for regular couch and chairs. If I'm not wrong TV is placed above the fireplace. Suggestion: bring it to eye level. TV is normally placed at the height of an average 30". Hope that was helpful -Thanks, -Neelam -Lines and Profile

This is a floor to cathedral red brick fireplace that I'm trying to update to a more transitional look. I have looked into painting or limewashing white but I feel like there will be alot of painted lines and could be busy. I also think that looks like the budget option. While I AM on a budget, I'd like to investigate more options stucco over the brick? drywalling the brick? Ideas? I can't change the orange peel textured walls or the dark hardwood floors or the fireplace box itself. The hearth goes across to the window wall and sticks out 2 1/2 feet. I have enclosed 3 pics for more clarity. Thxs for any help!