In the jewelry processing industry, each gemstone is a treasure bestowed by nature, while diamond micropowder is like a magical paintbrush in the hands of craftsmen, giving gemstones unparalleled brilliance.

I. Diamond Processing

1. Cutting Stage
   • Key Components of Cutting Tools：Diamond cutting is an extremely delicate and crucial process, and the cutting tools directly determine the precision and effect of the cutting. When cutting diamonds, the tools used usually have diamond micropowder firmly embedded in a metal or resin matrix. The particle size of these diamond micropowders is generally between 10 and 30 micrometers, and they are closely arranged at the cutting edge of the tool, like densely packed tiny blades.
   • Cutting Process and Precise Control：When the diamond cutting equipment starts, the cutting tool rotates at a very high speed, bringing the embedded diamond micropowder close to the diamond rough. Because of the extremely high hardness of diamond micropowder, its Mohs hardness reaches 10, the hardest substance in nature, so it can easily cut into the diamond rough. Skilled craftsmen, with their superb skills and advanced equipment, precisely control the movement trajectory of the cutting tool according to the crystal structure of the diamond rough and the pre-designed cutting plan. For example, when cutting a round brilliant diamond, the craftsman will use a diamond micropowder tool to precisely cut the diamond rough into several facet prototypes along a specific angle and depth, ensuring that the angle and size of each facet meet the ideal optical proportions. In this way, a good foundation is laid for the subsequent polishing process, ensuring that light can achieve ideal reflection and refraction inside the diamond.
2. Polishing Stage
   • Polishing Tools and Micropowder Application：Diamond polishing requires extremely high precision and fineness, and diamond micropowder with an extremely fine particle size, usually between 1 and 5 micrometers, will be used. These micropowders are evenly mixed in a special polishing paste and applied to a soft and elastic polishing wheel. The polishing wheel is generally made of leather, wool, or special synthetic materials.
   • Polishing Principle and Effect Presentation：When the polishing equipment drives the polishing wheel to rotate at high speed and contacts the diamond surface, the diamond micropowder in the polishing paste will perform ultra-fine grinding on the diamond surface. During high-speed friction, the micropowder can delicately remove tiny flaws and uneven parts left on the diamond surface during the cutting process, making the diamond surface reach atomic-level smoothness. After fine polishing, each facet of the diamond becomes extremely flat and smooth, and light can perfectly reflect and refract between the facets. Taking a round brilliant diamond as an example, its standard 57 or 58 facets, after diamond micropowder polishing, can achieve ideal optical effects, and the diamond's fire is fully stimulated. From different angles, the diamond will show colorful and dazzling brilliance, greatly enhancing the diamond's aesthetics and commercial value.

II. Jade Processing

1. Grinding Process
   • Rough Grinding Stage：After jade rough is mined, its shape is often irregular and the surface is rough. In the rough grinding stage, diamond micropowder with a relatively large particle size, about 20-50 micrometers, will be used. These micropowders are mixed with a special grinding liquid and applied to a rough grinding tool, such as a grinding wheel or grinding disc. Driven by jade processing equipment, the grinding tool rotates at high speed, and the diamond micropowder is in full contact with the jade surface, quickly removing impurities and excess parts from the jade surface, and initially shaping the approximate shape of the jade product. For example, when grinding a piece of jade rough into a jade bangle blank, rough grinding can quickly shape the rough into a circle while ensuring that the thickness and inner diameter of the jade bangle meet the design requirements, with a Size error controlled within ±1 mm.
   • Fine Grinding Process：As the grinding deepens, it enters the fine grinding stage, at which point diamond micropowder with a smaller particle size, generally between 5 and 20 micrometers, is used. The purpose of fine grinding is to further refine the jade surface and eliminate scratches and unevenness left by rough grinding. In this process, it is necessary to more precisely control the grinding pressure and speed. Through fine grinding, the roughness of the jade surface is significantly reduced, and the feel becomes smoother and more delicate, preparing for the subsequent polishing process. After fine grinding, the microscopic undulations on the jade surface can be controlled within tens of micrometers, showing a preliminary luster.
2. Polishing Stage
   • Polishing Materials and Operational Points：The diamond micropowder used for jade polishing has an extremely fine particle size, usually between 0.5 and 2 micrometers. After mixing it with a special jade polishing liquid, it is applied to a soft polishing cloth wheel or sheepskin wheel. During the polishing process, the speed and pressure of the polishing equipment need to be precisely adjusted according to the type and texture of the jade. Different types of jade, such as Hetian jade and jadeite, have different hardness and textures, so the polishing requirements also vary. For example, Hetian jade has a warm and delicate texture, and during polishing, a relatively low speed and smaller pressure are required to avoid damaging the jade surface; while jadeite has higher hardness, the speed and pressure can be appropriately increased.
   • Luster Enhancement and Value Reflection：After polishing with diamond micropowder, the jade surface shows a warm and bright luster, and the texture and color inside the jade are more clearly displayed. The luster of the jade is upgraded from the ordinary matte state to a bright glass luster or oily luster (depending on the type of jade), greatly enhancing the aesthetics and artistic value of the jade product. For example, a carefully polished jade pendant has more vibrant colors, more delicate and clear textures, and the Price on the market may increase several or even dozens of times compared to before polishing, fully reflecting the important role of diamond micropowder in enhancing the quality and value of gemstones in jade processing.