Agate stone is truly unique and exceptional. That is why so many jewelry designers use it to create one-of-a-kind pieces of jewelry. Known for its fine grain and brightness of color, agate is normally found within volcanic rock. A Greek philosopher and naturalist who stumbled upon it while walking along the Achates River named the stone. Agate is a common material used in stone carving, which makes it the perfect base for designer cufflinks. Cufflink designers carefully manipulated this natural stone in order to create a stunning pair of Agate Cufflinks. If Greek philosophers had worn cufflinks, they would have probably worn Agate Cufflinks.