The difference between natural diamonds and synthetic diamonds

There is no visible difference in appearance between natural diamonds and synthetic diamonds, but the actual difference is big, not only in value, but in more differences and features. Let’s take a look at the differences between diamond setting and jewelry setting. 1. There is little difference in value between man-made diamonds and natural diamonds, but man-made diamonds of the same quality level are much cheaper than natural diamonds, and some are even only one-fifth of the price of natural diamonds. The value of natural diamonds is relatively stable. 　　 There is no difference in appearance between natural diamonds and synthetic diamonds, but the actual difference is big, not only in value, but in more differences. Let’s take a look at it. Diamond setting can be used in jewelry setting.　　1, value 　　　　 There is not much difference between man-made diamonds and natural diamonds in appearance, but man-made diamonds of the same quality level are much cheaper than natural diamonds, and some are even only one-fifth the price of natural diamonds. The value of natural diamonds is relatively stable and sustainable.　　　　2, color 　　　　 Both natural diamonds and man-made diamonds are composed of carbon atoms and are arranged in the same crystal lattice, so they have the same physical properties. The only feature is the irregularities in the microstructure and atomic-scale crystal lattice, that is, crystal defects. In this regard, due to different growth environments, such as chemical atmosphere and growth speed, natural diamonds and man-made diamonds are not different. Most man-made diamonds on the market today are strong yellow, orange, or even brown, so they are easy to distinguish. . 3. Significance Natural diamonds symbolize preciousness and rarity. People often use natural diamond rings to express their love. The stability of diamonds symbolizes eternal love. Although artificial diamonds are the same as natural diamonds on the outside, they do not have natural diamonds. Such beautiful meanings are usually only regarded as jewelry that is usually worn. The characteristics of 　　　　 natural diamonds: 　　　　 One, crystal form 　　　　 octahedron, rhombic dodecahedron or irregular shape. Due to the dissolution, the crystal planes and crystal ridges are curved in a round appearance, and there are often triangular and conical etchings on the crystal plane.　　　　Second, internal characteristics 　　　　1, inclusions: garnet, diopside, olivine, spinel and carbon.　　　　 2. Growth structure: straight or angular growth texture related to octahedron.　　　　 Third, ultraviolet fluorescence 　　　　 blue fluorescence under long-wave ultraviolet light, and no or weak blue and yellow fluorescence under short-wave ultraviolet light. The fluorescence is distributed in uniform or uneven bands.　　　　Four. Cathodoluminescence 　　　　 shows a complex figure composed of curves and straight lines and cross hatching.　　　　 5. Abnormal birefringence 　　　　 Many natural diamonds often have abnormal birefringence, often in irregular bands, stars, patches, waves, lattices, and cross-shaped patterns surrounding the inclusions.　　　　 6. Absorption spectrum 　　　　 has 415NM characteristic absorption line 　　　　The characteristics of synthetic diamond: 　　　　One, crystal form 　　　　 common cube and octahedral poly shapes. Monomorphs such as underdeveloped rhombic dodecahedrons and tetragonal trioctahedrons are common on the crystal surface, with dendritic and irregular patterns on the crystal surface.　　　　 2. Internal characteristics: 　　　　 1. Inclusions: sub-crystals, round, rod-shaped, radial or thick plate-shaped alloy inclusions. Under reflected light, the alloy inclusions are golden, black, and metallic. Needle-shaped inclusions.　　　　2, growth structure: right-angled growth texture.　　　　 Third, ultraviolet fluorescence 　　　　 yellow-yellow-green fluorescence, the fluorescence distribution is cross-shaped, octagonal or other geometric patterns, the central part of the fluorescence is strong, and gradually weakened outward.　　　　Four, cathodoluminescence 　　　　 the four simple shapes are composed of straight lines as a whole to form a quadrilateral or other geometric figures. Different rings can emit different colors of fluorescence.　　　　 5. Abnormal birefringence 　　　　 is relatively rare. If there is, the birefringence phenomenon is relatively simple, often showing a cross-shaped bright band.　　　　 6. Absorption spectrum 　　　　 has no 415NM absorption line. The above is the information about natural diamonds and synthetic diamonds summarized by the author for you. The information comes from the Internet. If there is anything wrong, please understand. If you need knowledge and understanding of diamond setting, please pay attention to jewelry setting. Jewelry setting is waiting for your inquiry !