Article continues below advertisementKate Middleton has made a clear statement about her future role in the monarchy, using a single, striking fashion choice to signal that she is prepared to take the reins, OK! can reveal. At the recent German State Banquet at Windsor Castle, the royal wore the Oriental Circlet Tiara - her largest and most ornate to date - which insiders tell us "sent a message of authority and readiness" palace aides say "cannot be ignored."Commissioned by Prince Albert for Queen Victoria in 1853, the tiara is set with 2,600 diamonds and accented with rubies.