Private enterprises. Laofengxiang Diamond Processing Center is a private enterprise because it is funded by individuals. Lao Fengxiang is a century-old national brand and a famous jewelry brand in China. As a listed company and one of the top 500 enterprises in China, Shanghai Laofengxiang Co., Ltd. evolved from Laofengxiang Jewelry Store, which was founded in 1848. The originality of its trademark "Lao Fengxiang" also stems from the font size of Lao Fengxiang jewelry store. China is a classic jewelry brand spanning three centuries.