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 …
Procesamiento de diamantes: the preparation process from rough to millions of diamonds Lee mas »
The most complete crystal octagonal gray diamond, 4.12 carats, 10.8*8*8milímetro, Sudáfrica 0.67 carats, 7*4*2.5milímetro, South African diamonds 1.13 carats, 7*5*4milímetro, Central African Republic 1.76 carats, 7*6*6milímetro, Brazil 1.91 carats, 7*6*6milímetro, Brazil Brown octahedron, 7.19 carats, 12*9.5*9milímetro, South Africa Brown diamonds, two 5.63 carats, 7*6*6 y 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! Lee mas »
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 …
La identificación visualDesde el estallido de la epidemia, Ha habido varios cambios obvios en el mercado internacional de diamantes.: 1.El downstream de la industria (minorista) primero disminuyó y luego aumentó, afectando directamente a la mitad de la corriente (industria de procesos) y aguas arriba (minería) de la industria; 2.El mercado en la era post-epidemia se ha desarrollado rápidamente, helping the midstream and …
La identificación visual de los diamantes en bruto Mano de obra desde los siguientes aspectos: (1) Observe the gloss Because diamonds have a special diamond luster, el índice de refracción de los diamantes es tan alto como 2.417. Hay pocas piedras preciosas naturales con un índice de refracción tan alto como el aceite mineral.. The rough diamonds can see strong luster even on …
La identificación visual de los diamantes en bruto Lee mas »
