Limestone Outdoor Paving Black Calibrated Sawn Edges

It's black and it's limestone, but it does have a slight variation in colour from one flagstone to the other. The pointing lines highlight the blackness of this natural stone and the pattern in which it is laid.

Black limestone will weather to greyer tones over time but is a great choice for the black squares of an outdoor chessboard, or used with other flags as a border or to highlight an area