According to the different fluorescence patterns of polished diamond samples, the identification results were obtained. The DiamondSure tester is used as an example to illustrate its working principle. DiamondSure is a rapid natural diamond screening instrument that can identify naturally polished diamonds or recommend further analysis of uncertain samples. DiamondSure can detect colorless – buff …
To put it simply, the price of non-color CVD is twice as high as the other two, and most of the stones below the DEF color are a little coffee color, and the coffee among the milk coffee green, many people already know this, it looks like a diamond. Dark, opaque, but not reflected on …
I believe everyone is familiar with diamonds. Diamond is a very precious gemstone, partly because its production and reserves are very low. In the era of “rare is more precious”, diamonds are naturally regarded as rare treasures. D'altra parte, people’s perception of diamonds is also related to the properties of the diamond itself. …
Come anello nuziale penso che vadano bene entrambi! Se hai abbastanza budget, puoi scegliere un anello di diamanti naturali! Se vuoi usarlo come investimento, si consiglia di avere un grado di colore D o superiore a 1 carato. The value preservation rate of other color grades is basically …
Infatti, whether natural diamonds or cultivated diamonds, their industrial chain is not complicated. In parole povere, the upstream is responsible for mining or producing rough diamonds, the middle is responsible for cutting and polishing, and the downstream is responsible for manufacturing and selling jewelry. Natural diamond mining rights are controlled, with the top five …
La catena industriale della coltivazione dei diamanti Per saperne di più »
The finished product market is quiet in the off-season. Jewelry retailers are optimistic about the market in the second half of the year, despite U.S. inflation hitting a high of 9.1% in June. The primary market price of rough diamonds remained stable at the note fair. The processing layer competes to purchase rough diamonds from …
