ในปีที่ผ่านมา, synthetic diamond grown by chemical vapor deposition (ซีวีดี) has become an important topic in the jewelry industry. These diamonds can be synthesized under low pressure and medium high temperature (approximately 800 ถึง 900 องศาเซลเซียส), and have been more widely used in jewelry. Chemical vapor deposition synthetic diamonds are almost always brown …
CVD synthetic diamond with nitrogen impurities อ่านเพิ่มเติม »
1. ใน 2018, หมี, the world's largest diamond manufacturer, launched a new brand called Lightbox Jewelry, which will be the only jewelry brand under the group that uses technical synthetic diamonds provided by its subsidiary Element Six Diamond Laboratory. 2. Diama was founded in May 2016, and all its product series are made of …
Major brands of cultivating diamonds at home and abroad อ่านเพิ่มเติม »
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 อ่านเพิ่มเติม »
The most complete crystal octagonal gray diamond, 4.12 กะรัต, 10.8*8*8มม, แอฟริกาใต้ 0.67 กะรัต, 7*4*2.5มม, South African diamonds 1.13 กะรัต, 7*5*4มม, Central African Republic 1.76 กะรัต, 7*6*6มม, Brazil 1.91 กะรัต, 7*6*6มม, Brazil Brown octahedron, 7.19 กะรัต, 12*9.5*9มม, South Africa Brown diamonds, two 5.63 กะรัต, 7*6*6 และ 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! อ่านเพิ่มเติม »
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 …
