A kind of natural black diamond is polycrystalline diamond, which is opaque and has only medium black color intensity. Fancy black. It looks completely black because it contains graphite inclusions. Natural black diamonds are usually opaque, shiny and metallic, and some also contain pyrite or hematite, so they appear brown, olive green, dark gray or black. Natural black diamonds without impurities are very precious and the output is extremely rare. At present, black diamonds are only found in alluvial deposits in Brazil and Central Africa, and their prices and values are also high.
This big diamond is a treasure handed down from generation to generation by French Karloff jewelry brand, and it is listed as one of the top five black diamonds in the world. Black diamonds originally belonged to European aristocrats in the Middle Ages. They were sold on 1920. After several people's treatment, it finally belongs to the brand Karlov. Korloff Noir？ . In the Expo room, in addition to the 88-carat 57-sided black diamond, it is also planned to show the new diamond cutting method cut by KORLOFF, so that most of the light will directly enter the gem and improve the luster of the diamond. ?
In recent years, young people have become more and more partial to diamonds. According to the survey data, because millennials are deeply influenced by diamond culture, diamond consumption in China is no longer limited to wedding scenes, and diamond jewelry is gradually worn daily. Moreover, recent research shows that black diamonds may be directly formed by interstellar clouds rich in carbon and hydrogen, and planets explode into supernovae and then fall to the earth. People love the beautiful appearance of diamonds, and they also love the meaning they represent. It symbolizes eternal love and gives people good expectations.