An emerald and diamond oval plaque ring

An emerald and diamond oval plaque ring, the elongated open work oval plaque centrally set with a step cut emerald, within a surround of calibré cut emeralds and circular cut diamonds, all set to millegrain edges. Elevated diamond set shoulders with scroll decoration, into a plain band. Stamped 850 Plat, stated weight of principal emerald stated as 0.65ct. Head 27mm x 11mm. 4.88g Ring size M Buying this gemstone ring at auction could save up to 0.42 tonnes of CO2e compared to buying new. Condition Report: Surface scratches to mount. Principal emerald showing typical inclusions under 10x magnification. Light wear to the facet edges.