Real or Fake Jade (Yashab)? Home Checks, Lab Tests and Safe Buying

Real jade is either nephrite or jadeite. Everything else sold as jade, from green serpentine to dyed quartz and glass, is an imitation, however attractive. At home you can rule out the obvious fakes with a loupe, a torch and a careful look at weight and texture. You cannot prove a stone is untreated jade at home. That needs a lab, particularly for jadeite, where bleaching and resin filling are common.

This guide is about asli ki pehchan: telling real from fake. It lists the imitations you are most likely to meet in Pakistan, the home checks that genuinely help, the popular tests that mislead, and what a laboratory adds. If you want help choosing between nephrite and jadeite or judging quality, our jade buying guide covers that side. To compare real stones, see our jade collection.

Why jade is so often faked

Three things make jade easy to imitate. First, the name is used loosely: "jade" in a shop can mean nephrite, jadeite, or simply "a green stone". Second, much jade is opaque or semi-translucent, so there is no sparkle to judge, and many green stones look similar polished into a cabochon or bead. Third, jade is sold heavily as carved pieces, bangles and tasbih beads, where a buyer rarely looks closely at one bead.

Calling an imitation by its own name is fair trade. Selling it as jade is not. The aim is to know which you are holding.

The imitations you will meet in Pakistan

Serpentine ("new jade", "Afghan jade")

This is the most common substitute. Serpentine is a softer green to yellow-green mineral, often sold as "new jade" or "Afghan jade", and sometimes even as "Pakistani jade". It can be pretty and translucent, but it is much softer than jade, scratches with steel, and feels lighter in the hand. It is often waxy and slightly greasy-looking after polishing.

Green aventurine (quartz)

Sold as "Indian jade". Under a torch or in sunlight, aventurine shows tiny glittering flakes of mica, a sparkle that jade never has. It is quartz, so it is harder than serpentine and close to jade in hardness, which is why a scratch test alone does not catch it.

Dyed quartzite and chalcedony ("Malaysia jade")

White quartzite or chalcedony dyed bright green is sold under names such as "Malaysia jade". The colour is often too even and too bright, and under magnification it gathers in the grain boundaries and small cracks, giving a net-like pattern of darker green.

Glass

Green glass, sometimes made milky to copy translucent jade, is used for cheap beads and cabochons. Look for round gas bubbles, swirl lines, a shiny glassy lustre and mould seams on carved pieces.

Other green stones

Prehnite, green chrysoprase, green calcite, and dyed or bleached marble also appear as jade. Most are genuine minerals with their own names and fair prices. The issue is only when they carry jade's name and price.

Plastic and resin

Very light, warm to the touch, and often with a slightly soft, matt surface. Common in fashion jewellery and cheap tasbih.

Real jade that has been treated

Not every problem is a fake stone. Real jadeite is often treated, and the trade uses letters for this:

• Type A: natural jadeite, with only a surface wax finish.
• Type B: jadeite bleached in acid to remove brown staining, then filled with polymer resin to improve clarity. It can become brittle and cloudy over years.
• Type C: jadeite dyed to add or deepen colour, often combined with B as "B+C".

Nephrite is less often treated, though some is dyed or waxed heavily. Treated jade is still jade, but it should be described as treated and priced far below Type A. A treated bangle can look better than a natural one, which is exactly why it fools buyers.

Home checks that help

None of these is proof on its own. Used together, they will catch most imitations before you pay.

1. Look closely with a loupe

A 10x jeweller's loupe is the single most useful tool. Nephrite shows a fine, felted or fibrous texture; jadeite shows small interlocking grains, sometimes with a slightly dimpled "orange peel" surface where softer grains polished lower. Glass shows bubbles and swirls. Aventurine shows flat sparkling flakes. Dyed stones show colour concentrated in cracks and along grain boundaries.

2. Shine a torch through it

Hold a small torch behind or against the stone. Real jade usually shows a mottled, cloudy or fibrous interior with uneven colour. Dyed stones often show colour in veins and webs. Glass looks too uniform. Very even colour with no structure at all is a reason for doubt.

3. Feel the weight

Jade is dense. Jadeite is heavier for its size than quartz, and nephrite is close behind. Serpentine, plastic and resin feel noticeably light. If you have a known jade piece of similar size, compare them in your palms. This is a rough check and works best with experience.

4. Check temperature

Stone feels cool at first and takes time to warm in the hand. Plastic and resin feel warm almost immediately. Glass also feels cool, so this test only rules out plastic.

5. Look at the surface and lustre

Polished nephrite has a soft, oily or waxy shine. Jadeite can look a little more glassy. Glass tends to look sharper and more reflective, and plastic often shows tiny scratches and a dull, soft surface after use.

6. Ask the seller to write it down

This is a real test too. A seller confident in natural, untreated jade will write "natural nephrite" or "natural jadeite, untreated" on the invoice. Vague words such as "jade stone", "green jade" or "Afghan jade" are a sign to ask more.

Popular tests that mislead

• The scratch test: real jade is 6 to 7 on the Mohs scale, so a steel knife should not mark it, while serpentine scratches. But quartz-based fakes also resist steel, and scratching a stone you have not bought damages someone else's property. Never do it to a finished piece.
• The tapping sound: people tap jade bangles together and listen for a ringing tone. Results depend on the shape and thickness of the piece, and glass can ring too. It is not reliable.
• The flame or lighter test: heat can crack jade, burn resin in Type B jadeite and leave soot on anything. It proves little and can ruin a piece.
• The hair test: wrapping a hair around a stone and burning it is folklore. Do not trust it.

What only a lab can tell you

A gem laboratory can confirm whether a stone is nephrite, jadeite or something else, using refractive index, specific gravity and spectroscopy. For jadeite, infrared spectroscopy is used to detect the polymer resin of Type B, and other methods check for dye. These are the questions that decide most of jade's value, and none of them can be settled at home.

For a low-cost bead or a decorative carving, the home checks are usually enough. For a jadeite ring stone, a bangle or anything bought as a significant purchase, testing is worth the cost. A certificate is available on request on our stones, and independent lab testing can be arranged. See lab-certified gemstones and our guide on reading a lab certificate.

Nephrite or jadeite? Both are real

A common worry is that nephrite is "not real jade". It is. Nephrite has been called jade for thousands of years and is the jade most often worn in Pakistan and Central Asia. Jadeite is a different mineral with the same trade name, valued for its brighter greens and translucency. A seller should tell you which one you are buying, because they are priced differently. We list nephrite in its own nephrite collection, and our nephrite guide covers how it is worn.

Buying jade safely

1. Ask what mineral it is. Nephrite, jadeite or another stone. If the seller does not know, assume it is not jade until shown otherwise.
2. Ask about treatment. For jadeite, ask directly whether it is Type A.
3. See it in daylight. Ask for unedited photos in natural light, front and back, with a torch shining through.
4. Be wary of the too-perfect stone. Bright, even, translucent green at a low price is the classic sign of dye or resin.
5. Get it in writing. The invoice should name the mineral and any treatment.
6. Use a returns window. Buy where you can inspect and return. With us you can open the parcel before paying the rider under Cash on Delivery, and return within 7 days.

Two stones from our collection show natural yashab in close sizes: a 10.74 carat jade and a 10.85 carat jade. Each is photographed alone, so you can compare texture and colour with what you have seen elsewhere. For general checks that apply to all stones, read real or fake gemstones, and for how we check stock, see our authenticity page.

If you already own a piece

Many families in Pakistan have jade bangles or beads passed down from elders. If you want to know what yours is, start with the loupe and torch checks above and look for bubbles, glitter or dye in cracks. If the piece passes and matters to you, a lab test will settle it. Do not heat, scratch or soak an heirloom to test it.

Shop the stones: jade.