QICAI Jewelry Co.,LTD

Many people, especially Chinese people, love to wear jade because it has the meanings of auspiciousness, warding off evil spirits and ensuring peace. Jade originally was the name of a certain bird. The feathers of the male jade bird are bright red, while those of the female are emerald green. The colors are extremely beautiful. Due to the fact that most jade produced in nature is green and red, the term "jade" gradually changed from referring to a bird to referring to jade itself. The common colors of various jadeite include green, colorless, white, black, purple, blue, pink, yellow, red, etc. The jadeite after carving has a glass-like luster and an oily luster. When choosing jadeite, one should pay attention to its quality, thickness, color depth and uniformity, transparency, and carving techniques.

Platinum (abbreviated as Pt) is a naturally pure white precious metal. Platinum does not belong to the same category as gold; it is a rarer precious metal than gold. Platinum is 35 times rarer than gold. Due to its extremely high density and twice the hardness of gold, its weight is also correspondingly higher. The properties of platinum are the same as those of gold: high stability, strong corrosion resistance, no oxidation, and high ductility. Pure platinum is very soft. When making platinum jewelry, Pt950 is commonly used in the market, which is 95% pure platinum and contains 5% other metals. Due to the extremely high purity of platinum and its ability to maintain a constant color over time, many people choose it as a wedding ring. Common platinum jewelry is mainly silver-white in color, while platinum jewelry with electro-black processing is becoming increasingly popular in the market, giving platinum a style different from the traditional single color. The most direct way to identify platinum is to look for the unique platinum mark on the inner surface of the jewelry - platinum or Pt. Every piece of platinum jewelry must have the unique platinum mark engraved on the back: platinum (platinum) or Pt, and after the mark there is a fraction representing the purity (content of platinum) of the platinum, such as platinum (platinum) or Pt950, Pt990 (full platinum). It is like the identity card of platinum, providing a guarantee of platinum quality. Chinese mainland standard: Platinum 990: Refers to jewelry containing no less than 990 parts per thousand of pure platinum. The jewelry bears the mark "Pt990" or "Footed Platinum". Platinum 950: Refers to jewelry containing 950 parts per thousand of pure platinum, with 5% being alloy. The jewelry bears the mark "Pt950". Platinum 900: Refers to jewelry containing 900 parts per thousand of pure platinum, with 10% being alloy. The jewelry bears the mark "Pt900".   QICAI Jewelry Co.,LTD 401, Education Basic Building, No.12, Liuhe Road, No.1 Factory Building, Liuyao Community, Henggang Street, Longgang District, Shenzhen, China Phone: +86 17817840178 WeChat: 17817840178 Email :hailey@jewelry18kgold.com Web: www.jewelry18kgold.com

What are the advantages of natural diamonds? Why are they so precious? Natural diamonds are natural products formed over billions of years and are precious non-renewable resources of nature. After reaching a peak in 2005, the production of natural diamonds has been decreasing, making them increasingly rare and precious. They are expensive gemstones. Each natural diamond is unique and formed naturally. Because natural diamonds are rare and the hardest natural substance, they have long been used as tokens to witness the commitment of lovers to stay together for life and symbolize a lifelong promise. After being cut and polished, natural diamonds become even more dazzling and are suitable for making rings, pendants, bracelets and other irresistible jewelry, making the wearer shine. At the same time, a natural diamond can be extremely valuable and remain undiminished over time, making it highly collectible and investable.   Is the origin of diamonds important? Are the diamonds from South Africa really the best? The most widely known diamond-producing region in the world is undoubtedly South Africa. However, does South Africa alone produce all natural diamonds? Are the diamonds from South Africa really of better quality? The answer is not necessarily. In fact, South Africa is not the only origin of diamonds. Diamond production is found in all major continents of the world, including Africa, South America, North America, Australia, Europe and Asia. It's just that gem-quality diamonds are mostly produced in Africa, and many large diamonds in the world are produced in South Africa. Therefore, South Africa has become the most familiar diamond-producing region.   Important factors influencing diamond prices However, the price of diamonds is not determined by their origin. The most significant factor affecting the price of natural diamonds is the quality of the diamond itself. Currently, most jewelry companies use the globally recognized 4C grading system of diamonds to determine the price of a diamond. The 4C standard of diamonds was established by the founder of the Gemological Institute of America (GIA), and this standard provides a set of objective and consistent diamond assessment criteria for each diamond, serving as basic information for customers when purchasing diamonds.