In the cultivation of synthetic diamonds, based on current technological conditions, the high-temperature high-pressure method (HTHP) synthesizes cultivated diamonds mainly in a columnar form, with fast growth speed, low cost, slightly lower purity, but has overall advantages, especially in the synthesis of 1-5ct cultivated diamonds.
有活力的吉尔伯特 : This company, like Nutrition House International, is suspected to be hyped up by the same people, and will soon be suspended again. Be careful