In the trade, rutilated quartz such as moh-e-najaf is generally sold in its natural state, with no routine enhancement step the way heating is routine for sapphire. That does not make questions unnecessary, and a careful buyer should still ask the seller directly, in writing if possible, what is known about the particular piece.

Here is what we can say about this 5.69 carat stone, reference GS-MO-0011. It is natural quartz carrying needle-like inclusions, which give moh-e-najaf its identity. It measures 7 on the Mohs scale. The price is Rs. 2,180, about Rs. 383 per carat, a rate that is very close to the other moh-e-najaf stones we list.

What we cannot do from a catalogue page is promise more than we know. Send us a message on WhatsApp quoting the reference and we will pass on whatever we have for this stone; if you want a firm answer on treatment, independent lab testing can be arranged on request. And because you can open the parcel before paying on Cash on Delivery, the stone can be examined in your own hands first.

Prefer to compare before deciding? The full moh-e-najaf category shows every available piece.

Pay Cash on Delivery once you have opened the parcel and seen the stone yourself, anywhere in Pakistan, with 7 days to return it if you change your mind. Before you choose, read our moh e najaf guide.

This particular stone

This listing is one natural moh-e-najaf with a weight of 5.69 Carat. Its price is Rs. 2,180 — roughly Rs. 383 for each carat. Treatment: treatment not tested. Quote reference GS-MO-0011 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.

Between two and six carats is the range most people choose for a gents' ring or a noticeable pendant. Here colour drives the price more than size does, which is why two stones of near-identical weight can be priced very differently.

On the Mohs scale moh-e-najaf rates 7. It handles daily wear, but a hard knock can still nick an exposed corner, so a protective setting is a sensible choice. Clean it with warm soapy water and a soft brush, and keep it away from abrasive cleaners and high heat.

Whoever you buy moh-e-najaf 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 moh-e-najaf for those three points before it is listed, a certificate is available on request, 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. Certificate available on request. As general background (not a statement about this stone): Moh-e-Najaf (included quartz) is usually untreated. 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.