Queen Elizabeth II becomes Britain’s longest-reigning monarch on Wednesday, surpassing her great-great grandmother Queen Victoria. To celebrate her milestone, Kellogg’s has come out with a limited edition version called “Queen Flakes.”

It was recently reported that the queen loves a breakfast of cereals. Brian Houey, author of “At Home with the Queen,” recently revealed that Elizabeth’s daily morning routine consists of having a breakfast of cornflakes that is stored in Tupperware containers in her room. 

The Kellogg’s classic cornflakes “Queen Flakes” have been mixed with macadamia nuts (a favorite of the Queen’s) as well as edible diamonds and pearls. It is available only in Manchester’s Black Milk Cereal Dive, a cafe dedicated entirely to cereal for 6.30 pounds ($9.70).

Also, as the queen celebrates the momentous occasion, an official range of commemorative china has been created. A line of bone china has been designed inspired by the blue and gold designs used for Elizabeth’s original coronation program from June 2, 1953.

The china has been produced for the Royal Collection Trust and includes a 10-inch commemorative plate for $101, a pillbox at $45.50 and a tankard for $61. Each item features the royal coat of arms and is decorated with the words "HM Queen Elizabeth II – Our Longest Reigning Monarch." Other items will be added to the collection later. 

To mark the special occasion, The Royal Mint will unveil a fine silver face coin, which is valued around $30, People reported. The commemorative coin reflects the queen’s journey from her coronation to the position she holds. The coin’s design features five different portraits of the monarch, which have already appeared on U.K. coins. 

The queen was crowned at Westminster Abbey when she was 26 years old. She was driven in the Gold State Coach, an eight horse-drawn coach, along with her husband, Prince Philip, from Buckingham Palace to Westminster Abbey. Since then, the carriage has been used by Elizabeth twice -- at the Silver and Golden Jubilees. 

Elizabeth’s coronation service lasted for almost three hours. She wore a white satin embroidered dress with the emblems of the United Kingdom and the Commonwealth. She wore the dress a total of six times -- for receptions at the palace and various openings of parliament around the world -- up until 1957. 

Her all-white bouquet, comprised of flowers from around Great Britain, including orchids, lilies-of-the-valley, stephanotis and carnations, was presented to the queen to take with her on the drive.