3 4 5 carat uncut raw rough lab grown synthetic cvd hpht diamond diamonds jewelry

lab diamond box

Henan Zhongtu Superhard Material Co., Ltd. is located in Zhengzhou City, Henan Province, China. After 15 years of development and efforts, the company has developed into a large national enterprise integrating scientific research, production and international trading.

The company has state-level enterprise technology center, enterprise post-doctoral research station, and has a number of core key technologies and independent intellectual property rights. Some of the products have reached the international advanced level and are national high-tech enterprises. The main products of Lab grown diamond series products are popular in Japan, the United States, Europe and other developed countries and Southeast Asian markets.

What is Lab grown diamond?
Lab created diamonds are grown in highly-controlled laboratory conditions that simulate the earth's natural growing environment, producing real diamonds that are optically, physically and chemically identical to earth mined diamonds.

We are adhering to the core values of "people-oriented, joint efforts, innovation and win-win". We are committed to serving the industry. Our company always takes "labor to create value, create win-win situation and promote industry development" as our mission. Efforts are made to carry out the responsibility of "promoting the technological progress of the industry, improving the innovation ability of the industry and enhancing the competitiveness of the market".

1. who are we?
We are based in Henan, China, start from 2018,sell to Domestic Market(25.00%),Southeast Asia(15.00%),Western Europe(12.00%),South America(10.00%),Eastern Europe(7.00%),Mid East(7.00%),South Asia(5.00%),North America(5.00%),Eastern Asia(4.00%),Southern Europe(3.00%),Oceania(2.00%),Africa(2.00%),Northern Europe(2.00%),Central America(1.00%). There are total about 11-50 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
lab grown diamond,natural diamond,diamond jewelry,rough diamond

4. why should you buy from us not from other suppliers?
10+ Years Experience In Design, R & D And Field Application Of diamond and cbn Tools.

5. what services can we provide?
Accepted Delivery Terms: FOB；
Accepted Payment Currency:USD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal,Western Union,Cash,Escrow;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian