Difference of synthetic diamond and natural diamond

The main differences between synthetic diamond and natural diamond are reflected in four aspects: formation method, compositional purity, spectral characteristics, price, and application fields.

Specific difference analysis:

Formation method:

Natural diamond: Naturally formed in mantle silicate melts at a temperature of about 1000-1300 ℃, it is brought to the surface through volcanic activity after undergoing long-term geological processes.

Artificial diamond: synthesized by high-temperature and high-pressure method (HTHP, above 1400 ℃) or chemical vapor deposition (CVD) in metal melt or carbon source gas, with short and controllable process time.

Composition and Structure:

Natural diamond: With high purity of carbon element and only trace impurities (such as nitrogen), it has a characteristic absorption spectrum peak at 415nm.

Artificial diamond: may contain residual metal catalysts (HTHP method) or layered structures (CVD method), and typically lacks a 415nm peak in the spectrum.

Price difference:

Industrial grade: The price of natural diamonds is about 0.5-5 yuan/carat, while artificial diamonds only cost 0.1-2 yuan/carat.

Gem grade: Natural diamond raw stone costs 100-500 yuan/carat, and after processing, it can reach 4000-20000 yuan/carat; The price of cultivating diamonds (artificial) is only about 30%.

Application areas:

Natural diamond: mainly used for high-end jewelry and precision industrial processing (such as cutting tools).

Artificial diamond: With a wider range of industrial applications such as grinding wheels and cutting tools, cultivated diamonds are gradually entering the jewelry market.

https://www.shilisyntheticdiamond.com/Coarse-synthetic-diamond-powder

Contact Us

Company Name:Changsha Shili Superhard Material Co., Ltd.

Address: No 17 Kaiyuan road，Xingsha,Changsha city,Hunan province,China

Contact person: Ada Tan

Tel: +86-15084984550

WhatsApp: +86 15084984550

Email: [email protected]

Web:https://www.shilisyntheticdiamond.com