A diamond single-stone ring, the old brilliant-cut diamond, weighing 2.78 carats, set between fleur-de-lys shoulders, mounted in 18 carat white gold, ring size M, maker's case by Carrington & Co. Ltd, 130 Regent Street. Accompanied by a report from the Gem Studies Laboratory (GSL), Australia, stating that the diamond is G colour, VS2 clarity. Report number AA50740, dated November 7th 2012. By repute, the current vendor's great great grandfather, Sir Corbet Woodall, purchased the stone from Carrington & Co, 130 Regent Street, upon the understanding that the diamond was originally used in the coronation crown of Queen Alexandra, designed and manufactured by Messrs Carrington & Co in circa 1902