Beautiful, I agree border in the cornerstone fabric. Great job!!!!!!!!!!!!

Very pretty quilt, I would put a narrow border in the light (white) fabric and bind it with the red cornerstone fabric. Great job!!!
Sue

I agree with ArtsyOne if you use the red as in the corner stone you would end up with the blank tooth effect on the corner stones, so using the white and then bind in the red would be much better I believe.

I agree with ArtsyOne white border and red binding. You might be able to just use a red binding and omit the border. Your quilt is lovely

I love this quilt but think a border will add a frame that will enclose it and hold it in/together. Try the same print as the squares, or experiment holding up many fabrics to it and see what speaks to you

It's a very pretty quilt. I think either a binding or border would take up the same amount of your corner stones and sashing which would be the seam allowance anyway.

I think you did a great job of piecing. Just don't start sewing a strip on for borders. You can easily change the length when sewing that far. Measure then pin the half and quarter points on both the border and the quilt then match the pins. Pin baste in between as a few places then stitch. It's good to check and make sure both sides (top and bottom) are the same length or close to it before sewing also.

I agree with Buckeye Rose that the cornerstones along the outside edge are larger, which includes a seam allowance. You would not lose any of the cornerstone by just binding in red. The narrow red binding would set the quilt off beautifully.

Second quilt?? Wow, you did great. Your stepdaughter will love it.

I agree with the white border and red binding. Very nice quilt indeed!!!!!