An 18ct white gold diamond cluster ring, a central princess cut diamond, to a halo surround of round brilliant cut diamonds, with shoulders with a line of round brilliant cut diamonds and millegrain guards into a plain D section shank, hallmarked Birmingham, 5.20g. A Mastercut Diamond certificate of authenticity stating: Total carat weight 0.53ct Colour E Clarity VS2 Ring size R Buying this diamond ring at auction could save up to 0.42 tonnes of CO2e compared to buying new.