Edwardian diamond set rectangular plaque ring

Edwardian diamond set rectangular plaque ring in 18kt white gold and platinum. Centred with round Old European cut diamond in a millegrain setting, flanked to top and bottom with two pear shape old cut diamonds in millegrain settings, framed by an open rectangular border of rose cut and Old Mine cut diamonds in grain settings, to an impressive rectangular plaque design with negative spacing to the centre, millegrain edges, finely engraved gallery and set to either side by split fleur de lis shoulders which join at a ribbed terminal before continuing to a slim shank with incised centre. Estimated total diamond weight 2.00cts.