Estate vintage Size 8 Marked 925 solid sterling Rhodium plated 3.95g Preowned condition could use a shining/polishing! But nothing major! An @8.5mm Ascher cut Swiss blue topaz (@3.5CT) surrounded by a halo of 24 beautiful genuine diamonds. All @1.2mm or @.01ct each. (Approx .24ctw diamonds) @3.75ctw all stones. Measurements are approximate not always 100% Wide thick band. Stones are all prong set and secure Genuine stones Ascher cut in the Swiss topaz gives so many different kinds of color play! Halo stones are genuine in loop. Test as diamond and glow blue in uv light. I’m not an expert. As is either way A google image search did confirm the diamond halo They have an almost canary-like tint to them Band is 2.3mm wide & 1.3mm thick at the base 11.3mm x 11.5mm setting with a rise of 7.5mm Gallery is Beautiful I ship daily Reasonable offers welcome Check my page & bundle items for a discount All items are sold as is and all sales are final. No returns. Thanks so much