Natural diamond and diamond-detailed parameter optimization – Jewelry Industry

Diamond Name: Diamond Chemical composition: C Component breakdown: C 99.95% N <0.2% BH Si Ca Mg Ti C trace
Hardness: Mohs 10 Weight: 3.521 g/cm2 Refractive index: 2.417 (homogeneous body) Dispersion: 0.044 Common crystal form: Department of equiaxed grains with cube, octahedron, rhombic dodecahedron and poly shape.
Cleavage: (111) planes along the secondary cleavage along (110) cleavage plane is not full. Color: The Cape-based series, but other colors are very rare. Package Body: olivine: usually colorless cubic or octahedral sometimes rounded body. Pyroxene: light green or emerald green cubic or octahedral. Garnet: purple or orange red. Mica: muscovite. Biotite. Phlogopite so flaky. Graphite: Dark Secheng flakes or dust-like. Quartz: colorless or brown irregular grains. Other: There are ilmenite Rutile  Kyanite natural iron zircon amphibole Feldspar   Magnet 1981, Meyer and other mineral calcite is also found in red Gem Enclaves. Fluorescence: LW: mainly blue and white colors are also other synthetic diamond appear yellow-green.
SW: basically a very weak natural diamonds, synthetic diamonds for the strong yellow green. Build mine: Olive Rock: mantle to generate better quality. Eclogite Rock: Ground Table Generate poor quality. Thermal conductivity: very high but natural diamond and silicon carbide material for both materials DF thermal conductivity meter in real drilling data also show that under the.
  I type: type: I :400-300nm UV transmission not :400-300nm UV transmission I type IR Spectrum: 8000nm infrared absorption of type : 8000nm does not absorb I type nitrogen (N) -type boron (B) 3N as the main basic non-N B <0.001% Have more than 2N and N aggregation b = conductivity is proportional to conductivity and temperature. Blue Diamond with the majority of B b
I sub: Ia "IaA IaB1 IaB2" and Ib Ia = 3N is mature. The visible spectrum: 415nm absorption IaA = 2N. IR: 1282nm absorption IaB1 = 4N or more. IR: 1175nm absorption IaB2 = N aggregates flat; infrared spectrum: 1365 absorption Ib = 1N that is immature, such as synthetic diamond; IR: 1130nm absorption Ia natural diamonds, accounting for more than 99%. Ib accounted for 0.01% of natural diamonds Color Genesis: A: package body coloration. B: lattice defects. 1: package body coloration. 2: color center: natural radiation and artificial radiation. 3: Structure: changes along the (111) figurines. Brown if produced in Australia. Synthetic diamond key parameters: Crystal: Synthetic diamond crystal water chestnut relatively sharp. Caltrop more rounded natural diamonds.
Ib synthetic diamond is basically shaped. Polarizer: Synthetic diamonds may appear uneven cross extinction. Fluorescence: LW & SW generated under strong Huang Lvguang. Sometimes there were cross or a box.
IR: synthetic diamond at 854cm-1 band has absorbed most of the phenomenon. Ib: Type a 1130cm-1 absorption spectrum Synthetic diamond peak in the infrared spectrum for the Koho N Natural type Ib diamond infrared spectrum in the N peak is a combination of peak Package body: metal and alloy sheet is gray and black granular acicular opaque body Magnetic: the majority of synthetic diamonds magnetic Change color and optimization of artificial diamonds, the main parameters: Cyclotron: Color: Green – Black Heat Treatment :500-900 degrees after the color yellow orange brown Cause: space H3 Color characteristics: surface Spectrum: 409 503 595 Electronic Treatment: Color: Blue – Green
Color after heat treatment: 400 pink purple red yellow Causes: radiation damage Color characteristics: surface Spectrum: 637 523 575 595 Co60 radiation: Color: Blue – Green
Color after heat treatment: no treatment Causes: radiation damage Color characteristics: uniform persistence, but the residual radioactive Spectrum: 741 Neutron reactors: Color: Green Color after heat treatment :500-900 degrees Ia-yellow and pink Ib-purple pink a-brown Causes: radiation damage Color features: an overall Spectrum: yellow: 496 503 595 1,000 heating degree line disappeared after the 595 spectral lines appear 19,362,024
Pink: 637 503 595 Box above are changed color with characteristic absorption spectra of diamonds Natural Blue Diamond conductive drilling in artificial color blue is not conductive (about 30V) Filled diamonds: Filler Lead Glass   Epoxy resin Etc. 1 Flash Effect: Early Products: orange under dark field, bright field under the blue
Recent products: Dark Field pink – purple Blue and green under bright field – Yellow Green 2 flow structure: bending, fluid-like 3 internal bubble: fill the body with bubbles do not row
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