"The Monaco Post has released three new stamps to mark the tenth wedding anniversary of the Prince and Princess of Monaco.
One stamp features Prince Albert and Princess Charlene on their wedding day, while another is a family portrait including their twins. A third photo features the Prince and Princess of Monaco on the balcony of the Princely Palace."
I presume that unless we hear otherwise, the couple didn't mark the day with a special celebration. We may get photos, you never know. The stamps are very nice.