The diamonds are H-I in color with a clarity of SI-2 to I-1. The total diamond weight is approx 1.57ct. Please look at pic 11.
My jeweler believes the enamel was made this way to give it a look of stones surrounding the main diamond. See pic 9 for appraisal details. The item "Antique Art Deco 1.57tcw Diamond Enamel Halo 14k Gold Ring-Estate Jewelry SZ 6" is in sale since Tuesday, May 26, 2020. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Rings\Diamond". The seller is "caz7722" and is located in North Port, Florida. This item can be shipped to United States.