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All OUR RING CAN PASS THE DIAMOND TESTER
Causes of diamonds
The full name of diamond in English: diamond. The rough stone is diamond. It is a simple crystal composed of carbon element formed under high pressure and high temperature in the deep earth. After strict screening, only about 5% of diamonds are cut into gem-quality diamonds.
Diamond characteristics
Diamond has a hardness of 10, which is the hardest mineral known in nature. At the same time, it is also very brittle and should not be impacted. Diamonds are lipophilic and hydrophobic. They will have no trace when exposed to water, and will be lingering when exposed to oil. The reason why they don’t flash after wearing for a long time is because they are stained with body oil. Diamonds have high thermal conductivity, breathe into natural diamonds, and the water mist on the diamond surface will evaporate significantly faster than similar substances. Using a pencil to draw on the diamond will leave no trace.
Diamond origin
The top five producing countries: Australia, Zaire, Botswana, Russia, South Africa, accounting for 90% of the world's total production
Top 30 producing countries: Congo (Kinshasa), Brazil, Guyana, Venezuela, Angola, Central Africa, Ghana, Guinea, Ivory Coast, Liberia, Namibia, Sierra Leone, Tanzania, Zimbabwe, Indonesia, India, China, Canada
India: the country where diamonds were first discovered
South Africa: The diamond particles are large, and the output and output value have long been in the forefront of the world. The largest diamond ever produced: Cullinan Diamond
Australia: The country with the largest diamond production, the country with the largest production of pink diamonds and the best quality
Botswana: the country with the largest diamond production
Russia: Diamonds are large in quantity, high in quality and uniform, and have strong competitiveness in the market
China: Both reserves and output rank 10th in the world, mainly in Wafangdian, Liaoning, Mengyin, Shandong and Yuanjiang River Basin in Hunan. Wafangdian, Liaoning is currently the largest diamond mine in Asia
