Clogau royal crown 18ct white and rose gold 0047ct diamond ring 18rcwr02 the exceptional 1911 coronation crown of queen mary set with over 2 000 diamonds contained three unique diamonds that could be removed and worn separately as magnificent pieces of jewellery this contemporary collection is inspired by one of the most unquestionably grand crowns in royal british history and contains rare welsh gold to ensure the story of our royal and cultural heritage remains complete this lavish 18ct