Nephrite looks gentle and wears like iron. Its hardness is a moderate 6 to 6.5 on the Mohs scale, yet the tightly interlocked fibres inside the stone make it resist breaking far better than many harder gems. For a ring that gets used every day, that toughness is the reason people pick it.

At 6.35 carats this is a neat, compact stone, a good fit for a slim silver band or a ladies' ring, and light enough for a small pendant. It is natural nephrite, called sang-e-yashab in Urdu, from our nephrite collection.

Most nephrite is sold as found, although some pieces are dyed or waxed to improve colour or shine. Message us on WhatsApp quoting AG-NE-0001 and we will tell you what we know about this exact stone; independent lab testing is your choice if you want it.

To keep it looking good, wash it in lukewarm soapy water, rinse and dry. Hot cleaners and solvents can strip wax from a polished surface, so avoid them, and store the stone away from harder gems.

A small stone like this is also a sensible first yashab if you are trying the stone out before committing to a larger piece.

When the parcel arrives, open it with the rider present, check the stone and pay only if you are happy. Karachi orders usually arrive in 1 to 2 working days and the rest of Pakistan in 2 to 4, with 7 days to return it unused. Before you choose, read our nephrite guide.

This particular stone

This listing is one natural nephrite with a weight of 6.35 Carat. Its price is Rs. 2,850 — roughly Rs. 449 for each carat. Treatment: treatment not tested. Quote reference AG-NE-0001 when you message us about it. The photographs show this exact stone, so what arrives at your door is the piece you chose on screen.

From six carats up a stone becomes the centre of attention. It wants a broader shank or a secure claw setting and suits an occasion ring, a signet or a centre pendant. Clean natural material of this size turns up far less often, and the per-carat rate reflects that.

On the Mohs scale nephrite rates 6 to 6.5. That is middle-of-the-road hardness: comfortable in pendants and earrings, and in rings worn with some care. Store it apart from harder stones so it does not pick up scratches, and wipe it with a damp cloth rather than scrubbing.

Whoever you buy nephrite from, make sure of three things: the stone is natural rather than lab-grown, glass or glass-filled; any treatment is stated in writing; and the weight quoted is the weight of the finished stone. We check every nephrite for those three points before it is listed, and because you pay on delivery you can look at the stone — or have it tested — before any money changes hands.

We sell natural stones only and inspect each one before it is listed. Treatment for this stone: Treatment not tested. No lab report yet; independent testing welcome. As general background (not a statement about this stone): Nephrite is usually untreated, though some is dyed or waxed. Ask us on WhatsApp and we will tell you what we know about this exact stone; independent lab testing is available on request.

A certificate of authenticity is available on request for this stone, and independent laboratory testing can be arranged. Because you pay on delivery, you can also take the stone to a lab of your choice within the 7-day return window. Read more on our authenticity page.