I think maybe what I would do in order to extend the border, is use the striped border in-between two white borders. Maybe use the teal for the binding, since it matches the cornerstones.

I am trying to visualize this, but I think it might work for you. I admit that I am very fond of white, but it could be what you are looking for. Your quilt is beautiful!!

Dina

I like the multi-colored border by itself. There's enough space between it and the plates that it's not too busy. Beautiful quilt!

Leslie

I vote not to use the Teal. Happy you sold. Love this quilt/pretty colors.

I think that border is outstanding !

I really do like your use of the teal as a first border since it emphasizes the teal corner blocks. Then use your wonderful striped "rainbow" border. Finally, add a second teal border to make your finished quilt the size you need. I believe it will really bring out the beauty of the plates, but it will also bring out the rainbow, too. This is a definite winner in my book!!

I like it either way. The teal tones down the other colors in the striped border, but either way works! Show us when you're done, please?

I don't think the border is busy, but I prefer it without the border.

Love the quilt! and love those fabrics.

Definitely the multi without the teal. Let us see your final design. :)
Ya know....I just went back and looked. Maybe the teal as first border would be just fine. I think the issue here is you showed such a small portion of the double border. I am sure you have already gotten started, but if you haven't, it would be nice to see a pic of a larger portion of the quilt with the two suggested borders. It is really too hard to tell. Sort of like if you were in your own sewing room trying to make the decision by looking at it from 8" away to decide! :D

I vote for the wonderful striped border without the teal. It just seems to pull it all together.