I just saw one online that was red, gold, black, and white. It looked as though the inner border was about one inch, and the outer border was about 3 or so. It seemed fine to me. Try searching what others have done and see if anything jumps out at you.

I have the pattern for Allietare. The small gold border is 1.5" unfinished and the black border is 5" unfinished .

Thanks for all the helpful info! I made my quilt in Bonnie Hunter's suggested colors of red, gold, black and neutrals. I think I'll stick with a 5 or 6 inch border in black from my stash. Will try to post a finished pic eventually.

I personally like a 3" finished outer border. Years ago I put 1-1/2" - 2-1/2" - 3-1/2" Finished borders. Most of my older quilt books suggested those sizes. Noe I at least try to do one border to make it the size I want the quilt to be.

If you click the "home" button on the top left of this page, you will find a list of topics. The second one is "Quilting Board Challenges." Click on that and scroll down. You will find Allietare; click on that and there will be over 1500 comments, many with pictures. I found that many of our friends on Quilting Board created some magnificent new borders (because they needed a larger quilt) or, alternatively, used very different color ways. If you scroll through the comments, you may find an inspiration for a border that will make your heart sing.

It can be whatever width you want, like or need. Lay it out on the bed and audition different widths. When you get too big, it will look odd. And, I do not think I have ever seen one with an outer border more narrow than an inner border. But, having said that, trust your judgement and try not to overthink it.

Lay out your border fabric, now lay the quilt on top and try leaving various different widths of the border showing - even take pictures if you like - what looks good up close may not from a distance and a pic can help with that. I usually base my choice on a measurement compatible with the block size.