A portrait of the Queen by British photographer David Bailey has been reissued for her Sapphire Jubilee, marking 65 years on the throne.
The necklace made of 16 large oblong sapphires surrounded by diamonds with a matching pair of drop earrings.
February 6th is the anniversary of the day she became Queen. She became the The longest reigning monarch of 65 years in 2015 at the age of 89. She overtook her great great grandmother, Victoria, in 2015 - has already commemorated her Silver, Golden and Diamond Jubilees.
The Queen's silver jubilee in 1977 saw her travel 56,000 miles around the world in celebration, journeying from Western Samoa, Australia and New Zealand to Tonga, Fiji, Tasmania, Papua New Guinea, Canada and the West Indies.
William and the Duchess of Cambridge are carrying out an engagement on Monday, February 6, but not to do with the Queen's record-breaking reign.
They will be attending Place2Be's Big Assembly at a London school to mark Children's Mental Health Week.
To celebrate the Queen's record-breaking milestone, the Royal Mint casts a limited edition of coins - including one worth £50k.
The coins have been struck in a range of metals and denominations from £5, £10 and £500 to £1,000 to celebrate the milestone, which falls on 6 February and is a first for a reigning monarch.
The recommended retail prices for the coins range from £13 for the £5 piece to £49,995 for the £1,000 UK gold proof kilo coin.
Glyn Davies, designer of the £5 range, said: "I drew inspiration from the regalia associated with the Queen's coronation.
"As opposed to many traditional designs, I've rotated the crown to make a feature of the Stuart sapphire.
"I have also included a quotation from Her Majesty's 21st birthday speech, which makes the design more personal. I used computer-aided design to create the inscription, but sculpted elements of the crown in clay."
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