HPHT和CVD的技術比較
(1) CVD技術先進, 純度高但顏色差, 所以它被用於高科技領域: 大粒徑: 現在, 所有1.5ct以上的裸鑽均採用CVD技術生產; 色差: 為了提高生產能力, manufacturers will add nitrogen to accelerate the growth of …
實驗室培育毛坯鑽石的分級點
1. Grading based on crystal morphology and location of flaws Generally divided into the positive crystal, 扭曲的水晶, 三角形片狀, 接觸雙晶, 和聚合形式. 他們之中, 業務分為: 石頭: 指優質以上的鑽石 1 克拉. 花式顏色: The color of these diamonds does not include colorless with blue or …
未切割的原始鑽石仍然不便宜.
鋯石和莫桑石, 有些人是這樣理解人造鑽石的. 它們是人造的, 但不是人工培育的鑽石. 就像肉的三個概念, 人造肉, 和素肉, 總是會引起很多誤會. 肉是真肉, 而且人造肉也是真肉, just real meat grown in the …
Are these uncut white diamonds?
一般來說, the diamond pictured above, also known as diamond, has the mineral name diamond. Its chemical composition is carbon, the only single element in the gemstone, which belongs to the equiaxed crystal system. (1) Seven basic modes The crystal structure of diamonds is very complex, but there are three main types: (1) tetrahedron, (2) …
I色鑽石肉眼直接看是黃色的嗎?
鑽石分級科普文章中, 就鑽石而言, 我的建議是買不少於H色. h色是肉眼看黃色的鑽石顏色的分水嶺色. 那麼肉眼看起來呈黃色的 I 色鑽石又如何呢？? On …
What does rough diamond retention mean?
For diamond cutting, the retention rate of raw uncut diamonds is more called “收益率”, which is easy to understand. Roughly the ratio of “cut rough diamond weight” 至 “rough diamond”. I read an article that said olive and heart cuts are low-yield cuts, which is a big misunderstanding and fallacy. The yield of each …