January 2nd news, since December last year, the cultivation diamond industry has set off a wave of price increases. A number of companies have issued price increase notices. In this regard, the reporter contacted the investor relations department of Zhongbing Red Arrow, Power Diamond, Yellow River Cyclone, and Huifeng Diamond. According to a relevant person from Huifeng Diamond, the company has recently issued a price increase notice for cultivated diamond rough, with an increase of about 10%. T...