There are many kinds of diamonds, the good one is VS white diamond, and the beauty of VSH diamonds depends on purity, whether there are cracks, how many cracks, color, cutting and so on. The price is related to the above points! Purity, luster, weight, size, color (the purer the better), exquisite workmanship, unpolished diamonds are generally invisible. If it is a handicraft, it depends on the brand, and a high reputation is good! Diamonds are mainly the product of volcanic eruptions. They are mainly formed in volcanic neck, which is 2-25km above the ground. They are not widely distributed in the world. The main producing areas are Australia, Botswana, Zaire, the former Soviet Union, South Africa, Canada, China, India and some countries in southern Africa. Except the former Soviet Union, 70%-80% of the global diamond production is monopolized by a trust company called De Beers. The company controls the mining rights of most diamond mines in the world (Wafangdian, Liaoning, China and Mengyin, Shandong are also said to be controlled), and different departments are responsible for the mining, sales and promotion of diamond rough in De Beers. We won't discuss the exploitation of rough diamonds. The sales of rough diamonds are mainly handled by a department called the Central Marketing Department. De Beers collects and mines rough stones, not sells them casually. It has an annual membership system, and about 50-60 companies around the world have the honor to become buyers of De Beers' rough diamonds. After getting these rough diamonds (rough diamonds), some retailers go back to their own factories to cut and grind, and some entrust other factories to cut and grind. Those cut and ground diamonds will be bought by different first-class diamond wholesalers and taken to local second-class and third-class diamond wholesalers around the world, who will then wholesale diamonds to jewelry retailers, who will then entrust jewelry inlay factories to process diamonds into rings, pendants, bracelets and other various gold-supported diamond jewelry. Finally, these diamonds will be sold to jewelry retailers. The beautiful diamond ring proves sweet love. Since the diamond ring is the first choice for couples, what kind of diamond ring is suitable? Generally speaking, it is more appropriate to choose a diamond-encrusted ring below 50 points, which can not only express love but also be accepted by people of the general income class. A single diamond ring of 30 to 40 cents is a common choice for white-collar workers. Some rings inlaid with broken diamonds are also loved by some people because of their exquisite design. If economic conditions permit, it is best to choose diamonds with a score of more than 50, because diamonds with a score of more than 50 have considerable ability to maintain and increase value and have certain investment value. I remind you that while paying attention to the weight of diamonds, we must pay attention to the color, clarity and cut of diamonds, that is, comprehensively consider the "4c" standard. Diamonds with large weight, good cutting (bright light), few pure defects and white color are good diamonds. When buying diamond jewelry with a score of more than 40 points, don't forget to ask the merchant to show the appraisal certificate of the national testing department. In addition, it is suggested that when buying a diamond ring, it is best to buy earrings and pendants that can match it, so as to avoid regrets caused by improper matching of jewelry. Similarly, it is very appropriate for a woman to give her boyfriend a diamond ring as a token. Generally speaking, platinum plain ring with diamond ring is more suitable, simple and generous, gorgeous and unobtrusive, which properly shows the owner's good taste. The price of diamond ring is calculated in carats, and now 0.2 carats generally sell for about 4000 yuan; 0.3 carat sells for about 7000 yuan, and the bigger it is, the more expensive it is. It depends not only on the purity and luster, but also on its lathe workers. Most importantly, the quality of the process is directly related to the price of diamonds. A top lathe worker has eight hearts and eight arrows. There are eight arrows on the front and eight hearts on the back symbolizing Cupid, which is a beautiful testimony of love. Usually, the market price of 2 carats of top eight hearts and eight arrows is close to 300,000 RMB. Of course, the price will be cheaper without the top eight arrows. 1.88 million carats of diamonds can preserve and increase their value. Psychic diamonds are good, hehe, as long as your economy allows. 3 carats Oh, hehe, I think you must love your wife very much! May you live happily all your lives!