Third crowned portrait of HM Queen Elizabeth II facing right, wearing the George IV State Diadem.

The George IV State Diadem, officially the Diamond Diadem, is a type of crown that was made in 1820 for King George IV. The diadem is worn by queens and queens consort in procession to coronations and State Openings of Parliament. The piece of jewellery has been featured in paintings and on stamps and currency. It can be seen in the Queen's Gallery at Buckingham Palace.

Engraver: Raphael David Maklouf

A crowned lion and the year of minting, as well as the country's name and the coin's denomination in both English and Chinese. Crowned British lion holding a pearl is the Crest of Coat of Arms of Colonial (British) Hong Kong.