NATURAL EMERALD DIAMOND VINTAGE STYLE HALO ENGAGEMENT RING SETTING 4.7 5mm ROUNDFeatured here is an exquisite vintage inspired ring featuring natural emeralds and diamonds. This Art Deco inspired setting is perfect for a round stone from 4. 6mm to 5mm. The ideal size is just in the middle of that range. Please inquire to request options of center diamonds; we have a large stock of vintage cut and modern cut diamonds that will fit this ring. If you have your own stone, a 5. 0mm is the maximum size if the girdle is not too thick.