1, his obsidian is natural, not synthetic, and because its brand is Li Xinyu, it must be true.

2. Because it is aimed at the middle class, the price is slightly lower than that of peers, which is more suitable for people with average family circumstances. Yang Liuxi is a famous luxury jewelry brand in Hong Kong. Its main business scope includes jadeite, diamond, K-gold, colorful treasure and so on. Yang Liuxi, the company's full name is "Hong Kong Liuxi Jewelry Company", formerly known as Yangji Jinyufang, was first established by Mr. Yang Shoutang on 1953, and the first store was located at 76 Portland Street, Yau Ma Tei, Hong Kong. Yangji Jinyufang has won the unanimous praise of neighbors with the concept of "honesty, sincerity and meticulous work". Obsidian (English name: Obsidian) is a common black gem, also known as "Dragon Crystal" and "Ten Victory Stone". This is a natural silica, usually black. Obsidian can be processed into handicrafts. In addition, obsidian has the characteristics of glass, and its cross section is shell-shaped and very sharp. Today, most obsidian jewelry is produced in Central America and North America.