Diamond knowledge basics, understand diamonds in 5 minutes!
The English name of diamond, Diamond, is derived from the Greek word adams, which means invincible. However, at that time, this word was used to refer to hard metals such as iron, and then to generally refer to sapphire which is much harder than iron. As people continue to understand gems, the English name of dia diamond is derived from the Greek word adams, which means'unconquerable'. However, at that time, this word was used to refer to hard metals such as iron, and later Refers to sapphire that is much harder than iron. As people continue to understand gems, diamonds are specifically referred to as diamonds. One, the legend of diamonds The ancient Greeks believed that diamonds were fragments of stars that fell on the earth, and some even believed that diamonds were tears from the gods; people once believed that diamonds came from the water or dew of the sky. In Sanskrit, the word diamond means thunder and lightning, which expresses the belief that diamonds are born of lightning. It is not until today that the development of modern science tells people that diamonds do not fall from the sky, but instead come out of the ground. The ancients also believed that diamonds would give birth to small diamonds, even the famous scientist Boyle (R. Boyle, 1627-1691) also believed this statement. In the 17th century, Portuguese explorers believed that'diamonds can grow up close to the surface for 2-3 years,' and they exemplified this view as an example of why miners returned to old mining areas for several years. Second, knowledge about diamonds Diamonds are the products of the geological processes of nature. It is scarce, beautiful, durable and non-renewable. Because of its strong professionalism and more content, only a conceptual introduction is made here. 1, the composition of diamond Diamond is a simple crystal of carbon (C) formed under high temperature and high pressure in the deep earth. 2. The unit of measurement: One carat. Carat is the unit for the weight of gems.'Carat' comes from a seed called'Carob' from Africa. The weight of this carob seed is surprisingly consistent. The weight of early diamonds uses this seed Weigh. 1 carat is equal to 0.2 grams, and 1 carat is divided into 100 points, that is, a half-carat diamond is equal to 50 points. When the other three elements are the same, the larger the diamond, the higher the value. The selling price of diamonds is based on the weight grade, and there are different prices. 3. Diamond 4C The current international standard for measuring the value of diamonds is 4C, which is composed of 4 English letters starting with C. Carat Weight----The larger the single grain, the higher the value. Color----The closer the diamond is to colorless or high-purity, the higher the value. The diamond can have a variety of colors, but it is colorless to light yellow There are absolutely most diamonds in the series. At present, there are no standards for the color evaluation of fancy diamonds in countries around the world. The standards introduced here are also for colorless and light yellow-white series of diamonds. International diamond color grading systems are different, but they all gradually agree with the grading standards proposed by the Gemological Institute of America (GIA). GIA and international color grades are represented by English letters, ranging from the highest color grade D to the lowest color grade Z, and the color ranges from white to yellow. There are 23 grades in total. However, my country's national standard considers practicality and divides it into 12 grades. Cutting affects the value of diamonds The difference between cut and diamond cutting fancy, fancy is the foot dog of diamonds, it depends entirely on the preferences of the customer and the craftsmanship of the cutter. The ideal cutting ratio can fully release the diamond's light and fire. The closer to the ideal ratio, the brighter and more beautiful the diamond. For non-international standard cutting, the soil must be taken care of. Although it affects the fire, the business can make more profits due to the increase in weight. 3. Simple diamond identification method How to distinguish the authenticity of a diamond without an instrument? Many simple and practical methods: is a method often used by more experienced people to identify the authenticity of a diamond by hand. Gently touching the crystal face of the diamond with your finger will give you a sticky feeling. This is because diamond has an affinity for oil, and a small amount of hand oil is secreted on the skin of a human finger. This skin oil and diamond crystal When surface contact, the diamond will feel sticky due to its affinity for grease. However, if the discriminator has insufficient experience, it is still difficult to distinguish between genuine and fake diamonds, so some methods should be used with caution. Using a pencil to identify the authenticity of a diamond is a relatively simple method invented by a former Soviet Union expert. When appraisal, the diamond must be moistened with water, and then lightly scratched with a pencil. On the crystal surface of a real diamond, the place where the pencil traverses will leave no traces. If it is not a diamond, it is glass, Materials such as crystal will leave marks on the surface. This simple method is very popular among diamond lovers. Another method: Take a piece of white paper, draw a straight line with a pen, and wipe the gems clean. Place the table face down on a straight line. Observing from the pavilion, if it is a diamond, no straight line will be seen through the gemstone, but a straight line or part of a straight line can be seen through most diamond substitutes. This method can only be used for unset round diamonds. The above is the author's summary of diamond knowledge and information for you. The information comes from the Internet. If there is anything wrong, please forgive me. For customized diamond setting, please visit the official website of jewelry setting. Jewelry setting will serve you wholeheartedly!
