The beauty and elegance of pearls are largely attributed to their luster. The world is impressed by the beautiful luster of pearls. Many people do not know how pearl luster is produced. In order to give everyone a deeper understanding of pearl luster, the following answers to some common questions about pearl luster. What is pearl luster? The generation of pearl luster is a complex natural optical phenomenon. When light is irradiated, reflection, refraction and diffuse reflection appear on the surface of the nacre. In addition, diffraction and interference of light are usually generated between the nacre layers. These physical phenomena are reflected in the formation of a very soft color and smudge on the surface of the pearl. The uniqueness and complexity of pearl luster make it impossible for mineralogists and gemologists to describe it with other gloss levels, and this soft and unique luster is directly named “pearl lusterâ€. Where does the pearl's luster come from? Part of the pearl's gloss comes from the reflection of light on the surface of the pearl, and part of it comes from the radiant rainbow light. This rainbow is derived from the scattering of light at the edges of the overlapping aragonites and the collision of light reflected back through the surface. Since this is a complex optical phenomenon that occurs on a curved surface, multiple faces, or even deeper layers, each pearl exhibits varying degrees of rainbow light. Tahitian Black Pearl Pendant Does gloss have an effect on the value of pearls? The special beauty of pearls is produced by its characteristic luster, so gloss has a major impact on the value of pearls. The strength of pearl luster is closely related to the thickness of the nacre layer and the arrangement of crystals. In general, the growth time of pearls is moderate, the water environment in which pearls are formed is good, the health of pearl shells is good, and the luster of pearls is stronger; on the contrary, pearl luster is poor. This naturally occurring optical effect determines the pearl's subtle, elegant, awkward and soft aesthetics, and becomes the main basis for judging the value of pearls. How to distinguish the strength level of pearl gloss? Pearl luster is generally divided into four grades, which are extremely strong, strong, medium and weak. How to choose a glossy pearl? The pearl luster is characterized by refractive index and optical characteristics on the test certificate. The refractive index of the pearl is 1.53~1.68, and the optical characteristics are heterogeneous aggregates. A shiny pearl can be directly observed with the naked eye. Take the pearls to a place with plenty of light, you can clearly see yourself and the surrounding things reflected on the pearls. Under the strong light or the sun, you can see the pearl surface reflecting the dazzling light. The light is rich and varied, not dull. , the transformation angle can also see the dim color of the fine transformation. The industry leader in custom Metal Dog Tag pricing, quality, and selection. We can make any Dog Tags in any quantity in a variety of styles, materials and colors. They are great for identification and used as school participation medals, business promotional products, church fundraisers and camp prizes. We do not charge front side setup fees for our custom dog tags, and like all of our promotional products, we offer FREE artwork proofs and FREE changes! Request a free quote or order your custom dog tags online! Metal Dog Tag,Dog Tags For Pets,Custom Dog Tags,Dog Tags Shenzhen MingFengXing Art & Craft Products CO., LTD. , https://www.goodkeyring.com