One of the 4C standards is cut, which is for brilliant cut diamonds. When other factors are the same, the diamond value of the brilliant cut process is regarded as the highest. So how many cutting methods are there for diamonds? Here is a brief introduction to the methods Please refer to the 4C standard …
Diamond processing: the preparation process from rough to millions of diamonds 閱讀更多 »
最全水晶八角灰鑽, 4.12 克拉, 10.8*8*8毫米, 南非 0.67 克拉, 7*4*2.5毫米, 南非鑽石 1.13 克拉, 7*5*4毫米, 中非共和國 1.76 克拉, 7*6*6毫米, 巴西 1.91 克拉, 7*6*6毫米, Brazil Brown octahedron, 7.19 克拉, 12*9.5*9毫米, South Africa Brown diamonds, 二 5.63 克拉, 7*6*6 和 7*7*6, Australia Gray slender octahedral crystal 1.68 carats 7*6*5mm …
Diamonds are natural gemstones formed under the conditions of high temperature and high pressure deep in the earth. Through some knowledge of diamond knowledge, we know that diamond has the characteristics of high hardness, high refractive index and high dispersion rate, and its melting point also reaches 3550°C-4000°C, so can diamond be burned with fire? …
Can diamonds be burned with fire? Don't try it lightly! 閱讀更多 »
Many people know that the formation of rough diamonds takes more than one billion years, and a rough-looking rough diamond needs to go through complicated cutting and polishing to turn into a diamond with a beautiful appearance. Today we will reveal the secret of the cosmetic procedure of a rough diamond. Planning and marking is …
疫情爆發以來的視覺識別, 國際鑽石市場出現了幾個明顯的變化: 1.產業下游 (零售) 先下降後上升, 直接影響中游 (加工業) 和上游 (礦業) 行業的; 2.後疫情時代市場快速發展, helping the midstream and …
The visual identification of rough diamonds Manpower from the following aspects: (1) Observe the gloss Because diamonds have a special diamond luster, the refractive index of diamonds is as high as 2.417. There are few natural gemstones with a refractive index as high as mineral oil. The rough diamonds can see strong luster even on …
