Premium lab grown diamond bulk manufacturer: Natural diamonds have the same physical and chemical characteristics as lab grown diamond, both being three-dimensional crystalline minerals formed from the element carbon, the main difference being the way in which they are formed. Natural diamonds grow hundreds of kilometres from the surface in the high-temperature, high-pressure lower mantle, and take millions of years of crustal movement to reach the surface of the earth in volcanic eruptions before becoming a mineable mineral, whereas lab grown diamond are formed in a matter of weeks in a human-cultivated environment. The physical and chemical properties of the finished cultivated diamond are not dissimilar to those of a natural diamond. Discover extra details at hpht diamond.
Cut, round diamonds are divided into three categories: cut, polish and symmetry. Cut diamonds are two points. A good cut will make the diamond more colorful, which determines the sparkle of the diamond. Cut is categorized from high to low as ideal, excellent, very good, good, weak, and poor. The higher the cut recommendation, the better it is, the icing on the cake for the diamond. Also pay attention when choosing the quality of diamond, it is recommended to choose the non-fluorescence level, fluorescence will cover part of the diamond fire color. Finally, pay attention to avoid the selection of diamonds of coffee, milky, green, will also affect the beauty of the diamond. You can refer to the above points when selecting a diamond for cultivation. I hope you have a pleasant shopping experience.
GIA (Gemological Institute of America), in terms of natural diamonds to give the identification results are indeed detailed, but in the cultivation of diamonds in this regard is not perfect, and even a bit of “special treatment” – the cultivation of diamonds 4C identification results of fuzzy treatment, although the subsequent improvement, but the price of appraisal is also high. NGTC (National Jewelry and Jade Quality Supervision and Testing Center), the National Inspection is certainly authoritative, but for the cultivation of diamond 4C grading of this piece of words, the National Inspection will be slightly simple and rough, not detailed enough.
Lab Grown Diamond Certificate: The reason why certificates are at the top of the list is because they are an essential partner of the diamond. How to guarantee the authenticity of the parameters of the diamond, it depends on the authority of the certificate. The most comprehensive is IGI (International Gemological Institute), both electronic and paper version, very perfect, 4C, cultivation methods, whether to change the color and anti-counterfeiting. However, it should be noted that IGI has several testing points, India, the United States and Shanghai, China, and the most important thing to note is that the certificate from India can be double-checked and dropped. The best one is the certificate verified by IGI in Shanghai, China. It is also best to check the waist code when buying and choose a reliable dealer.
Recently, a small red book on the topic of “died puppy into a diamond” fire, the blogger said, in memory of the deceased love pet, she collected puppy ashes and her own hair, handed over to the company carbonized into a diamond ring. The price of these artificial diamonds is not expensive, one carat of loose diamonds plus the setting process will require more than 40,000 yuan, and can be customized, the style of change has no upper limit, but the price is the average worker can not afford.
Temperature and pressure are also two key factors in the manufacture of crystals, which are made in ceramic vessels rather than underground, where water pressure provides high pressure and electricity generates high temperatures, causing carbon to form crystals around seed crystals of 1 mm in diameter, made from natural diamonds. HPHT diamonds are also known as “Type IIa” diamonds, which are characterized by their lack of nitrogen impurities. This results in a very high level of purity and exceptional clarity compared to other types of synthetic diamonds or natural diamonds.
Natural diamonds grow in multiple directions under high temperature and high pressure for a long time. Cultivation of diamonds hthp simulates the high temperature and high pressure multidirectional growth in the underground environment. Cvd is the high temperature and high pressure unidirectional growth in the reactor. All diamonds over 0.5 ct come with a certificate of authenticity.The quality of each lab-grown diamond is certified by a certificate of authenticity issued by the International Gemmological Institute (IGI), which is recognized by diamond exchanges around the world for its strict quality standards. See extra information at messigems.com.
Someone once drew an analogy: comparing a natural diamond with a cultured diamond is like comparing a natural baby with a baby born to a surrogate mother; after all, they are all human beings! Like people, diamonds are divided into beauty and ugliness. Beautiful, will be sent to go to high-end jewelry stores, become the most striking existence; looks average, will be packaged and polished a little in the ordinary people’s families, witness love and life; ugly, most of the factory to do abrasive. So how are diamonds graded? As you should know, diamonds are made up of carbon atoms. Diamonds are roughly divided into four main types: Type Ia, Type Ib, Type IIa, Type IIb (1a, 1b, 2a, 2b), of which 1a accounts for 98% of the total amount of diamonds mined worldwide, 2a accounts for less than 2%, and there are very few natural 1b and 2b.