“Yu Ling Long (Exquisite Jade Stone). The most valuable treasure of the Yu Garden and one of the three most famous stones in the south of the Yangtze River. It enjoys a history of about one thousand years. The stone has the beauty of slender shape, mysterious water holes and wrinkles all over. As the ancient saying goes, “If you place an incense burner at the bottom of the stone, you will see smoke rising from each hole.””