Synthetic diamond is a kind of polycrystalline diamond which is crystallized and polymerized from diamond with a diameter of 10 to 30 nm. The molecular structure of synthetic diamond is not the complete octahedral structure of natural diamond, but a complex structure, which will produce phosphorescence.

The molecular structure of synthetic diamond is not the complete octahedral structure of natural diamond, but a complex structure, which will produce phosphorescence. With the maturity of artificial diamond production technology, its cost is low, and diamonds of various colors can be made, making a splash in the jewelry market.

Extended data:

Identification method

1, including

Alloy inclusions with different shapes are round, rod, plate and needle, and their arrangement is related to the boundary of the inner growth zone. Inclusions can also be dispersed throughout the crystal in the form of particles. These inclusions are opaque, golden yellow or black with metallic luster under reflected light.

Step 2 color

Most synthetic diamonds are yellow, and thirsty yellow (mostly) has an hourglass ribbon; Natural diamonds are colorless, light yellow and other colors. At present, the CVD diamond industry with good quality can reach colorless or light brown, which is almost unrecognizable to the naked eye.

3. Abnormal birefringence

Under orthogonal polarization, due to the complexity of growth and migration, natural diamonds show complex abnormal birefringence characteristics, such as irregular bands, waves, spots and lattices, while synthetic diamonds show weak abnormal birefringence, and some synthetic diamonds show cross-shaped bright bands.

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