In 2017, to celebrate the Sapphire Jubilee of Her Majesty Queen Elizabeth II, the Royal Mint released a Limited Issue Queen's Sapphire Jubilee £500 Five Hundred Pound Silver Proof Kilo Coin struck in solid fine .999 Silver weighing One Kilo of pure Silver.
The reverse designed by Gregory Cameron depicts the Coat of Arms from the late seventeenth century, an olive branch, a symbol of faithfulness and reconciliation, and on the right, a branch of oak, representing stability and loyalty in service.
The obverse design features the Fifth Portrait of Queen Elizabeth II designed by Jody Clark.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.