A completely transparent, colorless sapphire. There are no pigment ions in the composition. The colorless sapphire can be used in a pale yellow tone, which is mainly used as a substitute for diamonds. It is easy to distinguish from diamond according to the gloss, and the dispersion is low and the fire is weak. Mainly produced in Sri Lanka and Myanmar. Synthetic colorless sapphire is used as a high-end watch in addition to imitation diamonds.
Colorlesssapphire Colorless sapphire is a colorless sapphire with very little impurities and very pure color. The gemstone industry is commonly known as "white treasure".
Appearance, completely colorless or occasionally with a pale yellow tone, with a typical strong shine. Sometimes it contains fine veil-like or ribbon-like liquid inclusions; sometimes it contains fine cross-needle or fine straw-like rutile inclusions, so that it looks like a cloud-like area under bright light; it may also have radial fine cracks. Small crystal inclusions. Most of it is processed into a round mixed facet or a slightly modified standard diamond type, which is mainly used as a substitute for diamonds.
Colorless sapphire has a small dispersion and "fire", and it has a very weak birefringence, so it is easy to distinguish it from diamonds. Some colorless sapphires with a slight yellow tint are more likely to be used as counterfeits for diamonds.
Colorless zircon (commonly known as white zircon) has a strong birefringence (like other zircons, which is easily observed with a magnifying glass), and is also significantly different from colorless sapphire.
Colorless sapphires are mainly produced in Sri Lanka and are also found in Myanmar and elsewhere. It is the lowest value of corundum gemstones, and it can be said that the value is very low, but it is now the object of hunting by collectors and amateurs.
Colorless sapphire, because of its low value, is not counterfeited, but uses it and its synthetics to counterfeit diamonds, especially small and broken diamonds.
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