While I'm thinking about different ways to finish a piece with borders, I want to show you this one:
This is from a large piece called "SPIRIT OF THE SOUTHWEST" by Susan Portra. (I didn't scan the whole piece; just a section of it). I stitched it many years ago, using my favorite Southwestern adobe and turquoise colors.
What I want to show you is the way I finished the border on this piece. The instructions show the angled ECRU borders as the finished edge of the piece. If you've ever seen this piece stitched up and framed (and absolutely GORGEOUS, of course), it usually has a custom-cut mat that has all the triangular sections cut, so that the mat fits snug against the angled outside edges.
Well, I didn't want to mat the piece that way...so I came up with another way to finish the piece so it would fit within a plain square-cut mat. I decided to TENT STITCH inside each triangle shape with a medium-dark color (so the background would recede a bit) and then add a simple string motif (or jessica, if you prefer) that echoes the various jessica elements in the overall design. Here's a closeup of those sections:
I think the extra tent stitching was worth it. I created a background against which the Southwest design could stand out. And I still finished off the piece in an unusual way, without having to have expensive double or triple mats cut.
I share this idea with you, just in case you might have an unusual geometric design that you want to finish in a different manner. When in doubt, consider STITCHING your borders or backgrounds, to show off the rest of your work!