Simulated keystone was founded by James McGrath in 1980 due to the demand for a dwindling resource of natural florida keystone which was only cut from a quarry in florida city. He wanted to capture the beauty of each coral slab as it was a forgotten fossil. Each tile, slab, panel, column, or pool coping is made from an original and unique slab of coral that shows detail of (Brain, tube, an ivory bush coral to name a few) that no one has been able to recreate as simulated keystone this is because every piece is made by hand.