The rarest color of Wedgewood is perhaps the coveted black basalt. Introduced by Josiah Wedgwood in the late 18th century, black basalt was a departure from the traditional blue and white pottery that the brand was known for. Its deep black hue often featured intricate molded designs or classical motifs, making it highly sought after by collectors today. Due to its scarcity and historical significance within the Wedgewood line, black basalt pieces are considered a rarity among pottery enthusiasts.