Apparently theirs are a bit wider than others. I accidently sent mine off with a trade and now i dont have a ring that'll fit. Prefer black, but i'll take whatever... shoot me a price.
I've purchased humbucker rings for my Agiles from Guitarfetish.com and they fit perfectly (I think they're cheaper than Rondo?). Agiles are metric, you may have gotten a hold of something for a US made guitar.