Cat’s Eye Chrysoberyl, formerly known as « cymophane » meaning waving light, was first described by the German geologist and mineralogist Abraham Gottlob Werner in 1790 as krisoberil meaning golden beryl which comes from « berullos » (beryl) » and « khrusos » (gold). Today, it is called Cat’s Eye Chrysoberyl, because of the light line appearing on its surface, which resembles the vertical pupil of a cat’s eye. This phenomenon is due to the reflection of light on the mineral.
There are three distinct varieties of this stone. The first is the translucent mineral which is not subject to optical effects; the second is characterized by its high-contrast brilliant effect, also called Cymophane, and its iron composition; the third is the famous Alexandrite. This variety changes colour from green to red depending on the type of light it receives. However, regardless of the variety, Cat’s Eye Chrysoberyl is highly sought after by gem collectors and jewellers-creators because of its shimmering and varying luminous hues, even if those over 2 carats remain very difficult to find, especially those with a nice optical phenomenon or colour change.
Cat’s eye chrysoberyl stones with opal reflections are found in magmatic rocks. They form into crystals with a flat, rectangular topography. They are found mainly in Brazil, which is the main source of high-quality Alexandrite, but also in Sri Lanka, Myanmar, India and Zimbabwe. They were discovered in 1830 in Russia and quickly became a reference of the young Tsar Alexander II. Cat’s Eye Chrysoberyl stone received soon all attentions because of its colours, which were the same as those of the national colours of the Imperial Russia. Today it represents June and orchid weddings. The value of a cut cat’s eye chrysoberyl depends on its size, its colour, the phenomenon of colour change and the quality of its optical phenomenon. These opals are used by jewellery designers at less than 1.00 ct, a price which can be variable according to their value criteria.
Its nomination is due to the presence of inclusions in the form of long thin threads with a hollow centre enclosed in the crystal. Light reflects off the inclusions, creating a bright line in the centre of the cat’s eye chrysoberyl stone that seems lying on its surface. It must always be cut in cabochon, an ideal cut style for the phenomenon to be visible.
Cat’s eye chrysoberyl’s coulour usually ranges from greenish yellow to yellow due to the iron it contains. It is called “Milk and Honey” to describe its most pleasant colour: a hue between yellow and gold. However, the chromium (Cr)-coloured alexandrite variety absorbs tampered light and natural light differently. This variable absorption created a colour change from pink, red to purplish red to green. The fine, fire-coloured stone is the most prized, making it the most expensive of its family. Like all chrysoberyl, it has beautiful brilliant reflections and is easily identified by gemologists thanks to its characteristic spectrum indicating chromium (Cr). There are many commercially synthesized varieties of this stone. To distinguish between natural and synthetic, it is important to look at the inclusions.
First of all, this fire-coloured gem can help you treat vision problems and protects you from the evil eye by improving your aura. Thanks to it, your intuition is accentuated and you are more clairvoyant. It is also ideal if you are an intellectual or an artist as it promotes creativity and courage. In addition, Cat’s Eye Chrysoberyl has properties that help in passionate love relationships. Thus, a perfect harmony develops between the stone and its owner, as it makes the latter vibrate of insurance. Indeed, if the persons concerned decide it, their relations can only become stronger, allowing them to see the life in pink against all odds. It would also lead to philosophical reflection.
Firstly, Cat’s Eye Chrysoberyl stone improves your night vision and prevents disorders related to the eyesight. This can be a significant asset if you work in a dark or unfamiliar place. You will then be able to better anticipate possible dangers. It would also act on the chakra, having a beneficial action on the digestive system, the kidneys. It would regulate the liver, the gall bladder, the pancreas and the intestines. Finally, it would provide energy, relaxation, courage and would thus be a great help for sportsmen and women.