The Sky Blue Double Gourd Vase is created from the most aristocratic and precious porcelain that have been made for centuries, the blue celadon making this a striking decorative accessory. The skills to create and the secrets that make the lustrous blue vases so special have been perfected by artisan families for generations. Though the term celadon inspires many people to envision green surfaces, within China there are both green and blue versions of this time-honored technique.