0371-60937210
HPHT rough diamond is producing in one environment of 5-6GPa, 1400-1700 degrees. Now available sizes are 30 pieces per ct to 10ct per piece, color is DEF, clarity is VVS, VS, SI.
 ADD | No.915, Building 1, No. 55 Chengdongnan Road Guancheng Hui District, Zhengzhou City, Henan. |
 | crystaltechmaterial@outlook.com |