Cat S Eye Tourmaline Gia

In these stones you can see how the silk crosses the stone at right angles to the cat s eye.

Cat s eye tourmaline gia.

With a hardness of 7 to 7 5 on the mohs scale cat s eye tourmaline is durable enough for rings. A skilled cutter must assess the stone before cutting so. Make offer 13 84ct rare green cat s eye tourmaline gem cab green natural untreated cats d44 27 40ct brazil 100 natural extreamly rare blue catseye tourmaline gemstone cab 99 95. Favorite add to cotton candy cats eye tourmaline 60ct shipped from usa buzzwaxx.

The inclusions are larger than the inclusions in cat. Some have more than one color like watermelon which is pink in the middle and green around the outside. It is the largest encountered gemstone found in natural form. This 3 28 carat paraíba tourmaline s vivid violetish blue hue rivals the finest sapphires.

Cat s eye tourmaline is rare variety of tourmaline which exhibits a unique reflection of light that resembles the slit eye of a cat. 5 out of 5 stars 32 32 reviews. An alexandrite cat s eye is a chrysoberyl cat s eye that changes color. Cat s eye tourmaline or cats eye tourmaline gemstone lehsunia is a gemstone which has a resemblance with cats eye.

Tourmaline is famous for its dazzling colors. The effect refers to the sharp milky ray of white light normally crossing the cabochon as a center line along its length and overlying the honey colored background. Color one of tourmaline s most sought after and generally available colors is the pink red. The technical term used by gemologists to refer to a cat s eye effect is chatoyancy a term derived from the french phrase oeil de chat which means eye of the cat.

The optical phenomenon is exceptionally rare and occurs in only a handful of gems. King phd gia graduate gemologist. Because of this tourmaline s rarity its per carat price is also likely to rival the price of fine sapphire. This cats eye tourmaline gemstone has a striking white ray passing through the center that gives a resemblance to a cat s eye.

There are rich reds pastel pinks peach colors strong greens bright yellows and deep blues. The cat s eye effect can be found in a number of other gem varieties though in some cases the effect is quite rare. Cat s eye tourmalines are most often green blue or pink with an eye that s softer and more diffused than the eye in fine cat s eye chrysoberyl. Tourmaline often contains a silk of coarse tubes that can produce a very strong cat s eye.

This is because in tourmaline the effect is caused by numerous thin tube like inclusions that form naturally during the gem s growth. Milk and honey is a term commonly used to describe the color of the best cat s eyes.