In the sweet black and white image, the future King and his wife, who wed back in 2005, can be seen gazing lovingly into each others eyes.
Both are smiling and appear more loved up than ever.
"Thank you for your warm wishes on the occasion of The Prince of Wales and The Duchess of Cornwall's wedding anniversary," the caption read.
Earlier in the day, the pair visited Belfast for the re-opening of Hillsborough Castle and Gardens in which Prince Charles publicly acknowledged the very special day.
"Ladies and Gentlemen, I'm enormously grateful to you all for coming such a long way to celebrate our wedding anniversary. It's incredibly good of you," the 70-year-old told guests at the official residence of the royal family in Northern Ireland.
Charles and Camilla wed on April 9 in a civil ceremony at Windsor Guildhall. They then made their way to Windsor Castle’s St George’s Chapel for a religious blessing.
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