For 2016 the Royal Mint released it's yearly Limited Issue Britannia £500 Five Hundred Pound Gold Proof Coin weighing five ounces of pure Gold struck in solid fine 999.9 Gold.
The reverse designed by Suzie Zamit depicts
Britannia with Fork and Shield and lion at her feet while the obverse features
Jody Clark's Fifth Portrait of Her Majesty Queen Elizabeth II.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.