The special optical effects in jewelry and jade may have been seen or heard by some of you. Today, let’s talk about the special optical effects in jewelry and jade to see how much you know. The special optical effect of jewelry and jade is a rare occurrence in gemstones that can enhance the value of a gemstone. The special optical effects of jewelry and jade refer to the refraction, reflection, interference, diffraction, and other effects that occur in jewelry and jade under visible light irradiation.
The special optical effects mainly include the following: cat’s eye effect. Cat’s eye effect is a bright light band that appears on the surface of curved gemstones when light shines, and the light band moves with the movement of the gemstones or light. Another interesting phenomenon of the cat’s eye effect is that when a gemstone with the cat’s eye effect is placed under two light sources, as the gemstone rotates, the two light bands will open and merge, just like a cat’s eyes. In jewelry and gemstones with cat’s eye effect, they can be directly referred to as cat’s eyes, only gold and emerald cat’s eyes. And other jewelry and jade cat eyes should be labeled with the name of the jewelry and jade, such as “quartz cat eye” or “tourmaline cat eye”, and cannot be abbreviated as cat eyes.
The phenomenon of two or more intersecting bright lines appearing on the surface of curved gemstones under visible light irradiation is called the starlight effect. Bright bands are called star lines, usually consisting of two, three, and six lines. They are respectively called Radiant Starlight, Six Radiant Starlight, and Twelve Radiant Starlight. The probability of twelve rays of starlight appearing in red and sapphire is higher, because there are abundant rutile needle inclusions in red and sapphire, which provide good conditions for the starlight effect. Besides red and sapphire, other gemstones also have starlight effects. Such as garnet, spinel, cordierite, etc. Color changing effect refers to the phenomenon where gemstones exhibit different colors under sunlight or light. The most famous one in the color changing effect is turquoise, which is a gemstone with a color changing effect.
Bianshi is known as the “emerald of the day, ruby of the night”. Variable stone, also known as Alexandrite, is said to have been discovered by Alexander II of Russia on his birthday in 1830. Therefore, it is called Alexandrite. Sapphire and garnet also have a color changing effect. The color variation effect is a phenomenon in which the color of a gemstone varies with the transfer of light or observation angle. A typical example of the color changing effect is the gemstone Opal. On Europa, you can see colors like ruby red, amethyst, and emerald green, which are colorful, integrated, and beautiful. The mineral name of Opal is opal.
