Stone Fireplace Constructed from either natural French limestone or Derbyshire Sandstone, the Corbel & Leaf is hand-cut from solid stone. Classic styling makes the Corbel and Leaf equally at home with a Victorian cast insert, as shown, or the surround can be fitted with stone slips where the fire chamber size can be varied to suit. Because each fireplace is individually cut, the overall dimensions can be varied for a small extra charge.