This unique set of four Agate Coasters from John Lewis & Partners is sure to be a talking point at the table. Each one is made from pure agate and individually patterned so no two sets will be exactly the same. Roughly 10cm in diameter, give or take 2.5cm, the natrual agate stone is ideal for setting down drinks. Each coaster protect surfaces in a stylish way, while adding eye-catching colour to a room.