Need. According to Chow Tai Fook official website, when buying gold ornaments, professionals weigh them. Gold jewelry is more expensive. In order to ensure the accuracy of gold, all gold jewelry in Chow Tai Fook's warehouse should be weighed in the warehouse. Chow Tai Fook is the largest jewelry company listed in Hong Kong, specializing in Chow Tai Fook brand jewelry, jade and gold ornaments. It is a comprehensive enterprise integrating raw material procurement, production design and retail services.