Only the gold emerald cat's eye can be called "cat's eye" directly.
The gold emerald cat'seye cat is the most well-known member of the gold emerald family. It is commonly known as the cat's eye and is one of the world's top five precious stones.
Only the gold emerald cat's eye can be called "cat's eye" directly. The world has found that many minerals have cat's eye effect, but its value is far less than the golden green opal, which can only be called "xx gem cat's eye", such as Tourmaline cat eyes, quartz cat eyes and so on.
Cat eye effect:
The Cat's eye can be called the cat's eye directly, and it has a direct relationship with its appearance. When the gold emerald grows with tiny parallel filamentous rutile inclusions, once reflected by the light source, the light reflected by these inclusions forms a bright band of light, which is the eye line of the cat's eye. With the rotation of the gemstone or the movement of the light source, the eyeliner will be flexible and swaying, lifelike, and the same as the eyes of the feline, commonly known as the "cat eye effect." To express the cat's eye effect, this gold emerald must be cut into curved surfaces, and the facets cannot be displayed.
Reasons for the formation of the cat's eye effect:
When the fibers or needle-like inclusions inside the gemstone are arranged in parallel in a densely aligned manner, the bottom surface of the convex enamel type is parallel to the arrangement surface of the inclusion body, so that a cat's eye band can be produced on the curved surface.
Color and origin:
Cat eyes are produced in Sri Lanka, Brazil, India and other countries, usually in yellow, yellow-green, gray-yellow and other colors. The most popular is usually honey yellow or sunflower yellow. High quality cat eyes require no obvious inclusions, translucent, complete eyeliner, bright and straight. When using a point source (single source, such as the sun, flashlight) to illuminate the top gold emerald 45 degrees, the two sides of the eye line will appear in two different colors - honey yellow and milk white. And a few high-quality cat eyes, the eye line will open and close, amazing!
Tribute to Tang Xuanzong when he shocked the palace
In China, as far back as the Tang Dynasty, a team of envoys brought a treasure from the "Lion State" (Sri Lanka) on the Indian Ocean to the Tang Xuanzong. It was a gem called "Lion" (cat's eye), which shocked the Tang Dynasty Palace. Since then, Emperor Xuanzong has treasured it in the peony box. When the sky is sunny and sunny, it is often taken out and played, and the hour with the thinnest eyeliner in the sun is set to noon, which is now noon. Since then, "Lion" has gained a reputation in the world for its peculiarity, mystery and scarcity.
The value of the city's opal jade buckle buckle value of the city's opal jade buckle
Brown cat's eye (left) weighing up to 517 carats and green cat's eye of 250 carats, produced in Sri Lanka's 517-carat brown cat's eye (left) and 250-carat green cat's eye, produced in Sri Lanka
The potential for rare production appreciation is large:
The world's most famous opal origin is Sri Lanka. Although opal is found in China, Russia, Brazil and other countries, the output is very rare. Plus, Sri Lanka itself has been mining for many years, and there are fewer opals. The true golden emerald cat's eye, good quality, weighing more than two carats, is rare and can be seen at the top of a large auction.
Value assessment:
The evaluation of opal quality is mainly based on color, shape and weight of bright bands.
Color: honey yellow and tan are best, followed by light yellow green, light yellow and light green.
Bright band: Good opal, the bright band of the cat's eye should be in the center of the gemstone face. The bright, clear, and flexible opal has a high value.
Shape and weight: Generally, the greater the weight of a gemstone, the higher the value.
Transparency: For the general gemstone, the higher the transparency, the better, but it is special for the cat's eye, translucent is the best, otherwise it will affect its eyeliner if it is too transparent.
The golden green cat's eye determines its collection value because of its particularity and rarity. The appreciation potential is huge. When you have seen the golden emerald cat's eye with your own eyes, its delicate texture and smart eyeliner will make you unforgettable, among the Tibetans. It is very popular and worth collecting.
Those common gemstones with cat's eye effect
Golden green cat's eye
The chlorite cat's eye is one of the world's top five gems, with a variety of colors such as honey yellow, yellow, apple green, sunflower yellow, and green. It is one of the extremely rare and precious gemstone varieties. The main producing areas of Golden Green Cat Eye are: Sri Lanka, India, Africa and other countries, of which the quality of Sri Lanka is the best. In the national standard, only the gold emerald with the cat's eye effect can be directly called the cat's eye.
Stone cat eyes
The stone, also known as Alexander Stone, is a variant of the emerald containing a small amount of chromium oxide. Because of the trace amount of chromium oxide, the gold emerald has a special red color effect under the candlelight and tungsten light, and green color under the sunlight, and the cat's eye effect makes the stone cat's eye more rare and precious. Produced in Sri Lanka, cat eyes can be presented in a variety of colors, according to the color of the color is yellow, yellow green, brown green, yellow brown, brown and so on.
Emerald cat's eye
Emerald is one of the four precious gemstones recognized by the international jewellery industry. It is very rare in its own precious gemstones, and the emerald with cat's eyes is rare and precious. The main producing areas are Colombia, Brazil and Zambia.
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