First, pay attention to the quality of diamonds.
The quality of a diamond is actually the parameter grade of the diamond. The higher the grade, the better the quality, mainly including 4c+1f. 4C—— Diamond weight, diamond color, diamond clarity and diamond cutting. Ordinary consumers buy diamonds they usually wear, and diamonds with a score of more than 30 are very suitable (because diamonds with a score of more than 30 have GIA certificates).
Diamond color grading is divided into 23 grades, in alphabetical order D-Z (color quality from high to low). The closer the color grade is to D, the closer the diamond is to colorless. If the budget is limited, you can choose diamonds of J color and above. For the overall beauty, it is recommended to choose diamonds of H color and above as far as possible.
Diamond clarity is divided into 1 1 standard grades, and from high to low, it is fl/if/vvs1/vvs2/vs1/vs2/si1/si2/i1/I2/. The cleaner the diamond, the higher the clarity. In the case of limited budget, diamonds with SI clarity level can be selected appropriately, and it is suggested to choose diamonds with VS2 or above as far as possible.
Diamond cutting is divided into five grades: EX, VG, G, F and P from high to low. We usually recommend cutting EX, the lowest VG, and we don't recommend buying a lower cutting level.
Second, pay attention to the price of diamonds.
We must pay attention to the price of diamonds. Diamonds of the same grade or even the same license number will suffer a lot if they are expensive. Everyone knows that the price of online stores is lower than that of offline stores. In fact, buying diamonds is the same. Buying diamonds online can be cheaper than counters 15%-30%.
International brands, such as Cartier and Tiffany. The diamond rings of these jewelry brands are all at a high premium. When buying diamonds, we should not only pay attention to choosing the appropriate diamond grade, but also buy diamonds with high cost performance as much as possible. Diamonds do not distinguish between brands and places of origin.
Distribution of origin
Diamonds are produced all over the world, and more than 30 countries have diamond resources with an annual output of about 1 100 million carats. The top five countries in output are Australia, Congo (DRC), Botswana, Russia and South Africa. The diamond production of these five countries accounts for about 90% of the world's diamond production.
Other diamond producing countries include Congo (DRC), Brazil, Guyana, Venezuela, Angola, Central Africa, Ghana, Guinea, C? te d 'Ivoire, Liberia, Namibia, Sierra Leone, Tanzania, Zimbabwe, Indonesia, India, China and Canada.
The main diamond cutting and grinding centers in the world are Antwerp, Tel Aviv, new york, Mumbai, Thailand and Bangkok. Antwerp has the reputation of "the diamond capital of the world", where about half of the world's diamond transactions are completed. "Antwerp Cutting" is synonymous with perfect cut.