I agree. That is a wonderful look. I know
AmericanDiamond.com offers this ring with round brilliants in the style you described shown below:
Of course, I would not recommend pairing a three stone emerald cut ring with a round eternity band, but I think this shows the look of the style that you mentioned. I will put a request into our production team to design an alternating diamond and emerald, emerald cut eternity band. I think it will be brilliant!