In 2007 to celebrate the Diamond Wedding Anniversary of Elizabeth II and Prince Philip, the Royal Mint released a very Limited Issue Diamond Wedding £5 Five Pound Gold Proof Coin struck in solid 22 Carat Gold and has been Certified Slabbed and Graded by PCGS as PR69 DCAM with special NFC Anti-Counterfeiting Technology.
The reverse design is the rose window of Westminster Abbey designed by Emma Noble and the obverse is a conjoint portrait of Queen Elizabeth and Prince Philip by Ian Rank Broadley.
These legal tender coins have been struck to proof quality using specially prepared dies and highly polished blanks.