Lapis lazuli has been one of the most revered pigments used by artists since medieval times. It was a pigment held in such high esteem as to be worth its weight in gold. Originally mined in Afghanistan, the lazurite (blue particle) was referred to as ‘from beyond the seas’, due to the origin of the pigment being sourced from across the ocean. Being used by the masters such as Da Vinci, Titian, and Vermeer, it was painted sparingly and only for special patrons like kings and popes. The cost was so prohibitive that when a painting was commissioned, the amount of lapis in a painting, was often stipulated in an agreement between the artist and client.