Real or Fake Cat's Eye (Lehsunia): Asli Ki Pehchan Before You Buy

A real cat's eye shows a soft, living line of light that glides across the dome and changes as you move a torch. Fibre-optic glass shows a line that is too sharp, too even and visible from too many angles, and from the side it often reveals a honeycomb of tiny tubes. That single test catches most fakes sold as lehsunia in Pakistan. The rest of this guide covers the other imitations, what you can check at home and what only a lab can settle.

Our lehsunia grading guide explains how a genuine stone is valued. Here the question is simpler: is it genuine at all, and is it the mineral the seller says it is?

First, "real" cat's eye means several things

"Cat's eye" describes an effect, not one mineral. The effect, called chatoyancy, comes from fine parallel fibres or hollow tubes inside a stone, which reflect light into a single bright band when the stone is cut as a cabochon. Many minerals can do it, so a stone can be a natural cat's eye and still not be the lehsunia your astrologer meant.

So when you ask "is it real?", ask two questions: is it natural, and which mineral is it? A natural quartz cat's eye sold at a fair quartz price is an honest stone. The same stone sold as chrysoberyl is not.

A note on dark and "black" cat's eye

Dark stones sold as black cat's eye can be several different minerals, including dark chrysoberyl, tourmaline and other fibrous species. Each is a natural cat's eye, but they are not interchangeable in price or in tradition. Our 10.00 carat black cat's eye and 12.10 carat black cat's eye are examples of this darker material. Whatever you buy, ask the seller to write the mineral on the invoice.

The fakes you are most likely to meet

Fibre-optic glass

Sold under trade names such as "cat's eye glass", this is bundled glass fibres fused and coloured. It comes in honey, green, brown and many bright colours that natural lehsunia never shows. The eye is very sharp and very bright, often looking painted on. Seen from the side or the base, the stone shows a fine hexagonal pattern like a honeycomb. It is also much cheaper to make than any natural cat's eye, so price is often the first clue.

Ulexite

Ulexite is a soft borate mineral with fibres that carry an image from one face to the other, which is why it is called "TV stone". Cut as a cabochon and dyed, it can pass for lehsunia in a photo. In the hand it is light, scratches with a fingernail-hard object and loses its polish quickly.

Dyed quartz and tiger's eye

Quartz cat's eye is sometimes dyed to a honey or green colour to look like chrysoberyl. Plain tiger's eye, which has a band that moves, is now and then passed off as lehsunia. Tiger's eye shows a wide, rolling golden sheen across stripes rather than a single thin line.

Synthetic chrysoberyl

Lab-grown chrysoberyl cat's eye exists but is uncommon in Pakistani bazaars. It has the same hardness and weight as natural stone, and only a gem lab can separate it with confidence.

Checks you can do at home

None of these is proof on its own, but together they tell you whether a stone deserves a lab fee. Do not scratch-test a stone you do not own; it damages good stones and proves little.

1. The torch test. In a dim room, hold a phone torch above the stone and move it slowly from side to side. On a natural cat's eye the line follows the light smoothly and stays thin. On fibre-optic glass the line is often very wide or overly bright, and sometimes several faint lines appear.
2. Milk and honey. Shine the torch from one side at a fine chrysoberyl. The half nearest the light turns milky and the far half stays honey coloured; turn the stone and they swap. Quartz and glass rarely show it as clearly.
3. The side view. Look at the edge and base with a 10x loupe. A honeycomb or mesh of tiny cells means fibre-optic glass. Natural stones show fine parallel silk, not a grid.
4. The colour check. Natural lehsunia comes in honey, yellowish, greenish, brownish and dark tones. Bright pink, blue, purple or neon orange stones with a strong eye are almost always glass.
5. The heft. Chrysoberyl is heavy, with a specific gravity around 3.7. Quartz is about 2.65. Two stones of the same outline and dome, one chrysoberyl and one quartz, feel clearly different in the palm.
6. The surface. Chrysoberyl keeps a glassy, crisp polish for years. Soft fakes show rounded edges and fine scratches early.
7. The eye's position. A natural eye can sit slightly off centre or curve a little. A perfectly centred, ruler-straight eye on a cheap stone is a warning sign.

What only a laboratory can settle

Some questions need instruments. A gem lab measures the refractive index (about 1.74 to 1.75 for chrysoberyl, about 1.54 for quartz), the specific gravity, and the absorption spectrum, where chrysoberyl often shows a typical band in the blue. It can also identify synthetic chrysoberyl and some treatments.

A lab report is worth getting when:

• the stone is sold as chrysoberyl at a chrysoberyl price;
• it is going into a gold ring on an astrologer's advice;
• the seller names an origin, such as Sri Lanka, that adds to the price.

A certificate is available on request for GemStore stones, and independent lab testing can be arranged. Our guide to reading a lab certificate explains what each line means, and lab-certified cat's eye stones are listed on their own page.

Treatments to know about

Natural cat's eye is often sold untreated, but not always. Some chrysoberyl is irradiated to improve its colour towards a warmer honey or to sharpen the milk-and-honey contrast. Quartz and other fibrous stones may be dyed. Surface coatings occasionally appear on cheaper material. None of these turns a fake into a real stone or a real stone into a fake, but each changes value and should be disclosed in writing. Ask: "Has this stone been heated, irradiated, dyed or coated?"

Buying lehsunia safely in Pakistan

Most bad purchases happen when a buyer pays chrysoberyl money for glass or quartz on a seller's word. A few habits prevent that.

• Ask for the mineral by name. "Lehsunia" alone is not enough. Ask whether it is chrysoberyl, quartz or something else.
• Ask for a video. Ask for the stone to be turned under a single light, so you can see the line move.
• Get the weight right. Ask for the cut weight in carats. If ratti is used, ask which: the standard gem ratti in Pakistan is 0.91 carat, while the sunari ratti is about 0.61 carat. Our carat to ratti converter helps.
• Get it in writing. The invoice should say natural, the mineral and any treatment.
• Inspect before paying. Our Cash on Delivery lets you open the parcel and check the stone before you pay the rider, anywhere in Pakistan. Bring a phone torch to the door.
• Keep the return window in mind. You have 7 days to return a stone that is not as described; see the returns policy.

Orders leave within 1 to 2 working days and arrive by insured, tracked courier in about 7 working days.

Bazaar phrases worth questioning

• "Ceylon lehsunia" is an origin claim. Ask how it is known; only a lab can give an origin opinion.
• "Asli, guarantee wala" means little unless the guarantee names the mineral and says what happens if a test disagrees.
• "Same quality, half price" usually means a different mineral, often quartz or glass.
• "Test it with fire" or similar folk tests can crack a good stone and prove nothing. Use light and a loupe instead.

A word on tradition

In Vedic astrology lehsunia is the gem of Ketu, and it is often discussed alongside Gomed, the gem of Rahu. Many astrologers suggest a trial period before a stone is set. These are beliefs held by many families, not promised results, and it is worth settling weight, metal and finger with your astrologer before you buy. Our page on the nine planetary stones gives the background, and the planned how to wear cat's eye post covers the customs.

Quick summary

• Look for a thin, soft line that follows the light.
• Check the side for a honeycomb pattern.
• Be wary of bright, unnatural colours with a perfect eye.
• Ask which mineral it is and get it written down.
• Use a lab for any stone sold as chrysoberyl at a serious price.

Browse our natural cat's eye stones, each photographed on its own, or read our wider guide on checking any gemstone before you buy. The planned cat's eye price guide explains what moves cost.

Shop the stones: cat eye.

The beliefs described here are traditions, shared for interest. They are not guaranteed outcomes, religious rulings or medical advice.