What is ruby? Ruby is a beautiful, transparent gem-quality corundum. The English name for ruby ​​is ruby, which comes from the Latin word "ruber", meaning red. Ruby is regarded as auspicious by the ancient people's mysterious supernatural color with its crystal clear and beautiful color. As early as in ancient Egypt, ancient Greece and ancient Rome, it was used to decorate mosques, churches and monasteries, and as a tribute to religious ceremonies. It has also become an indispensable accessory in the crown of the British Empire, the Crown of the Russian Tsar and the dress with diamonds and pearls. Since the gemstones entered the folklore in the past 100 years, rubies have been among the world's top five precious stones, and they are the jewels that people cherish. The world of gemology defines the ruby ​​as the birthstone of July. The world's rubies are not produced in many places, mainly Myanmar, Sri Lanka, Thailand, Australia, China, etc., but in terms of gem quality, Myanmar and Sri Lanka have the best quality. Ruby shape The most common shapes of rubies include emeralds, pears, princesses, ovals, and teardrops. Unlike diamonds, which are generally round, rubies are rarely round and heart shapes are rare. Ruby weight Like diamonds, the weight of rubies can also be calculated in carats (also known as cards). 1 carat = 200 mg = 0.2 g. One carat is divided into one hundred, each one is called one. 0.75 carats are also called 75 points, and 0.02 carats are 2 points. In the case of other similar conditions, as the weight of ruby ​​increases, its value increases geometrically. Ruby color The appreciation of ruby ​​mainly depends on its color. The color of ruby ​​should be bright red and pure. The color of dark red is the best in color. The price is too deep and the price will decrease. For example, the "blood red" in Myanmar is the best in ruby. Another point of appreciation for rubies is ç‘•ç–µ. Rubies generally have cracks, and there are few cracks and smashing rubies that are rare, and they are "ten red and nine cracks." However, the cracks, wraps, etc. of the gemstones should not be too obvious and cannot affect the overall appearance. The weight and cut of the gemstone is also the key to affecting its taste. Ruby clarity The most common cockroach in ruby ​​is a small acicular impurity called a "filament". Because each ruby ​​is formed in its own unique environment, each gem contains a trace mineral combination that imparts its precise color and a unique identification mark or impurity. Although ruby ​​has a higher level of clarity than emeralds, the inner flawless ruby ​​is very rare and expensive. Impurities are generally more pronounced in rubies of light and medium colors. Since rubies are generally contaminated, it is necessary to choose a darker ruby ​​so that the impurities can be effectively hidden. Ruby cutting Unlike diamonds, rubies do not have geometrically designed cuts for maximum splendor, such as diamond "ideal" cuts. When checking the cutting of a gemstone, it is necessary to see if the cutting reveals the beauty of the gemstone. For example, for a ruby ​​color, the best cut should be lighter than the average to allow more light to pass through the gem, while for lighter gemstones, a deeper cut is good for reflecting the color. Like diamonds, high-quality colored stones often have cut planes, crowns, edges, ankles, and bottoms. The dark or white areas of the ruby ​​center are the result of too deep or too shallow cuts. The well-cut rubies are symmetrical and reflect light evenly across the entire surface. Polishing should be smooth without any cracks or scratches. In addition, a well-cut ruby ​​does not show a ribbon that often appears in corundum crystals: the appearance of such a ribbon usually indicates that the cutter wants to retain the weight rather than cutting out the most beautiful gemstone as much as possible. Ruby economic evaluation basis Rubies in nature have certain defects to varying degrees. The primary factor in economic evaluation is color, followed by weight, transparency and clarity. The value of ruby ​​is in terms of color, and the pigeon blood red is the best, followed by rose red and pink. In general, Myanmar ruby ​​red is bright and bright, and its value is higher than the value of deep red ruby ​​produced in Thailand. The ruby ​​particles produced in nature are small, and the value of the gemstone is increased by the square of the weight. However, if the weight of the gemstone exceeds 5 carats, the price of the gemstone is separately negotiated according to the quality of the gemstone. Visual identification of rubies Myanmar Mogo Ruby. The gems are mostly blood red, rose red and pink. The color is sharp but uneven, and a straight ribbon is often seen. The pleochroism is obvious, and the gems are observed from different directions with the naked eye, and two different colors can be seen. The gemstones contain the following inclusions to varying degrees: a rutile rutile inclusion; a hexagonal cylindrical spread of a generally fibrous rutile inclusion parallel ruby ​​crystal, forming three sets of meshes with an angle of 60 degrees and 120 degrees, when parallel When the net of this group of bags is cut and honed into a curved gemstone, when the light is shining on the curved surface, a six-shot starlight, that is, a star-shaped ruby, appears. If the fibrous inclusions are irregularly densely packed, they appear as translucent milky white flocculent plaques. Diffuse gas-liquid inclusions: scattered in the gemstones, in which the gas state accounts for a small area, about 30%. If the gas-liquid inclusions are gathered together in a fingerprint-like pattern, they are called fingerprint-like gas-liquid inclusions. Short columnar, granular network inclusions: Ruby often contains mineral inclusions such as spinel, calcite, vermiculite and hematite. The corners of these small minerals are rounded by melting. The characteristics of the gemstone are similar to those of the Burmese ruby, but the color is lighter and the brightness is larger. In addition to the characteristics similar to Burmese rubies, the inclusions in the ruby ​​of Sri Lanka contain two unique mineral inclusions: apatite inclusions, hexagonal columns of apatite, rounded corners, appearing as a single crystal or group. The silky rutile inclusions are slender than the rutile rutile inclusions in the Burmese rubies. Thai sharp bamboo spinning ruby. The gems are brownish red or rose red. The polycrystalline twin crystals develop, and the ribbon and growth lines are straight. There are fewer inclusions, and there are no rutile inclusions in the silk. Common fingerprint-like inclusions. Polyester Plain Fabric,Polyester Mesh Tulle Plain Fabric,Polyester Microfiber Peach Skin Fabric,Plain 100% Polyester Fabric Shaoxing City Shengfeng Import And Export Co.,Ltd. , https://www.sunfeelfabric.com