Cloudy Portland Grey Quartz surface features a consistent backdrop and fine grain that are all shades of light grey. Portland stone, which has been in use since the Roman era, has a warm, brilliant colour on which a fine texture appears. It adorns the opulent facade of Buckingham Palace and is well known throughout the English-speaking world. This old custom served as the inspiration for the slab known as Portland Grey. Quartz stones do not require high maintenance but proper care and maintenance should be given to the engineered stone to look striking.