Linneys will be among a dozen of the world's leading jewellers to exhibit at Kensington Palace tomorrow as part of a celebration for the Queen's diamond jubilee.
Sheiks, jewellers and the world's rich and famous will attend the luxury event called Out of the Vault - Pink Diamonds and Royalty, curated by Argyle Pink Diamonds for this year's 60th anniversary of the Queen's accession to the throne.
Director Alan Linney is set to rub shoulders with royalty as he displays the store's iconic $2 million tiara with 187 Argyle pink diamonds as well as two rings, valued at up to $750,000 each.
There will be only one other Australian exhibitor, Mondial, from Sydney, as well as renowned diamond merchant and Forbes-listed billionaire, Sir Laurance Graff of London.
Mr Linney said he would make a silent bid on Argyle's 2012 tender, comprising mostly pink diamonds and a few blue stones, at the event.
The Queen has a long association with pink diamonds, owning what some consider the finest pink diamond ever discovered. A 23.6 carat Williamson pink was given to her as a wedding gift in 1947, and later set a Cartier flower brooch.
Rio Tinto has been trying to sell its diamond division, including Argyle and mines in Canada and Zimbabwe, since March. The division posted a $38 million loss last financial year.
Analysts valued it at about $2 billion - though Argyle is thought to be unlikely to find a buyer until the $2.2 billion underground expansion is completed early next year.