This is a picture of the Mariners Compass I have made up. The pattern does not call for a border but I was thinking of putting one on. Should I?

I think a border would tie it altogether - I say 'yes'

I love the mariners compass. Yes, I think a border would be lovely. Thank you for sharing.

Wow, that's pretty! Personally, I am a fan of borders. I generally use 2, a narrow inner border and wider outer border. To me, it's the equivalent of adding mats to a picture frame. The picture alone can be nice, but it really stands out with the matting. Same thing with quilts.

I'd chose one of the mid to darker tones for an inner border and a lighter one for the outer border, then either the same as inner or another similar tone for binding. JMHO :)

Lay out some fabrics and audition them. It helps to decide.

I think a border would work well also. Go for it!!!

Beautiful quilt.
I usually don't like borders, but think this quilt needs one - not too big though

Ditto - it's calling for a border. One of the darks that you used in the sashing.

I vote for a border also. Great quilt!

I second the double-border idea-- narrow then a wide, but not too wide.

I agree. It is lovely and you should be proud.