Dr. Yuan on diamonds: Is there an oversupply of diamonds in global cultivation?
At the beginning of December 2021, the global production of cultivated diamonds and market demand, resulting in some phenomena, the inventory on the hands of intermediate link operators increased significantly, the price of rough and finished cultivated diamonds gradually decreased, although the recent production of rough and the global finished cultivated diamond market turnover have increased significantly.
The global production of CVD-cultivated diamond rough will be about 10 million carats in 2021, but most of the colors are not good enough. The quantity and market demand of good quality finished diamonds should be in short supply. However, the oversupply of poor quality finished diamonds will drive down the selling price of the whole market. Color to F, G, H more popular.
The total production of HPHT cultivated diamonds is only a small amount of good clarity, which cannot supply the market needs, and there is an oversupply of finished diamonds of the same poor quality. Most manufacturers sell to large distributors in an exclusive sales mode, so they don't care much about growing low-quality blanks. As long as they grow successfully as soon as possible, all good and bad quality will be underwritten by large distributors. However, the market does not need so many poor-quality products, which makes the supply and demand unbalanced and the supply of high-quality products exceeds the demand. The supply of low quality exceeds the demand. Clarity is popular with VS and good SI1.
The CVD machine should be improved to a fast length, and the color should be positive white after high temperature, high pressure, low pressure and high temperature, and the size of the machine should be enlarged to a 6-inch tray.
HPHT should try to grow clean blanks, supply the quality of the market needs.
All domestic operators set up alliances and inspection meetings to produce the predetermined specifications, quality and quantity by receiving orders, and the seller will set prices for unified sales by way of inspection meetings. If the buyer orders any changes, the manufacturer will be notified immediately to change the specifications, quality and quantity of the goods, so that both buyers and sellers can produce and purchase in a stable and orderly manner for a long time.
To participate in the "2011 Beijing International Lighting Exhibition" exhibition held in Beijing
Participate in the "7th Guangzhou International LED Exhibition (LED CHINA 2011)" exhibition held in Guangzhou
To participate in the "Japan International Electronic Products Exhibition" held in Tokyo, Japan"
Participated in the "Twelfth China International High-tech Achievement Fair" held in Shenzhen and won the "Excellent Product Award" certificate
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, gave a lecture entitled "Identification of Gem Diamonds Cultivated by CVD Method" at the Appraisal Institute on the 11.9 at the invitation of the Appraisal Institute of Taiwan Gemological Institute. In the lecture, Yuan Dong introduced in detail the historical principles of CVD diamonds and their development status, and introduced in detail several methods to distinguish CVD diamonds from natural diamonds on how to identify gem-grade CVD diamonds that participants are concerned about! Yuan Dong's wonderful speech was well received by the participants!
Dr. Yuan Zhizhong, Chairman of Bench Diamond Technology, was invited by Hangzhou International Jewelry City to attend an academic symposium on November 19, 2013. At the symposium, Yuan Dong gave a speech entitled "International Situation and Identification of CVD Synthetic Diamonds" on the current situation of CVD synthetic diamonds that jewelers are concerned about and how to distinguish CVD diamonds from natural diamonds. In the speech, Yuan Dong introduced in detail the history of CVD diamonds, the international situation of CVD diamonds and the commonly used identification methods of CVD diamonds, and answered some questions raised by jewelers. Mr. Yuen's speech was well received by the participants, and all jewelers said they benefited.