Nyheder

Lab-grown and natural diamonds have different advantages and disadvantages in the following ways: Formation process: Natural diamonds are formed deep in the earth after hundreds of millions of years of geological processes. They are rare and precious products of the earth, with unique natural beauty. Grown diamonds are created in a laboratory using techniques such …

What are the advantages and disadvantages of man-made diamonds and natural diamonds? Read More »

Ja, a professional jeweler with experience and expertise in gemology can generally tell the difference between lab-grown diamonds and naturally mined diamonds. While lab-grown diamonds have similar physical and chemical properties to natural diamonds, there are certain characteristics that can help jewelers identify them. Here are a few methods that jewelers might use to distinguish …

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Diamond Sorting: After the rough diamonds are mined, they are sorted based on their shape, størrelse, og kvalitet. This is done by trained professionals who have experience in identifying diamonds that are suitable for cutting and polishing. Diamond Planning: In this step, the rough diamond is analyzed to determine the best way to cut and …

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HPHT (Højtryk Høj temperatur) rough diamonds are man-made diamonds that are synthesized by simulating the high temperature and high pressure environment deep in the earth. Raw material preparation: select high-purity graphite and metal catalysts as raw materials. Processing of graphite: Mechanical processing and chemical treatment of graphite to make graphite grains that meet the …

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Ifølge markedsanalyser og rapporter, Kina er en stor producent og eksportør af laboratoriedyrkede diamanter, og teknologien og kvaliteten af ​​HPHT-laboratorie-dyrkede diamanter i Kina er i en førende position i verden. The brand and product quality of China’s laboratory-grown diamonds have also been widely recognized and praised in the international market. …

How do buyers of Indian lab-grown diamonds evaluate China’s hpht lab-grown diamonds? Read More »

Parameter Description Diamond Type Type IIa or IIb Growth Method HPHT (Højtryk Høj temperatur) Pressure Up to 6 GPa Temperature Up to 2,300°C Growth Rate Typically 0.01-0.1 mm/hour Seed Crystal High-quality single crystal diamond Catalyst Metallic solvent such as Fe-Ni-Co or a mixture of carbons Gas Composition Typically methane or hydrogen mixed with a …

lab dyrket diamant parameter tabel Read More »