A true signed heirloom Art Nouveau era old European cut diamond engagement ring for the antique jewelry lover! Not only is it unique, but it the diamond appears MUCH larger in this stunning and rare 'Marcus & Co.' rare unisex bezel set diamond ring that comprises a dome mounting bezel-set at the center with one glittering old European cut diamond, measuring from 3.17 to 7.98 mm wide, the shoulders with an open concave motif, the ring engraved with a geometric design. The diamond is SI2 in clarity, K-L in color, measures approximately 6.54 x 6.54 x 4.01 mm, and weighs approximately 1.10 carats (this ring has an individual diamond report, just ask to see it!). The ring weighs a hefty and solid 5.1 grams and is stamped “M & Co.” and is currently a finger size 6. I will be more than happy to have my trusted jeweler safely re-size this ring for a flat $45 gold sizing fee, just ask! Ring re-sizing takes an additional 3-7 business days by a third party Master Bench Jeweler, not to worry! Your ring is in good hands! I will be more than happy to email this piece's current certified and guaranteed retail replacement appraisal upon completion of sale, just ask! Questions are welcomed on Ring-2486.