Part of the charm of rock crystal is that it barely seems to be there. This 77.55 carat Dur-e-Najaf is a big piece of clear quartz, and when you lift it to your eye the room bends and folds inside it. That is a real optical property of transparent quartz, not a sales line, and it is why large pieces appeal even when nobody sets them in jewellery.

It rates 7 on the Mohs scale. It is colourless and transparent, and it is a natural stone, not glass.

Pakistani buyers know it as Dur-e-Najaf, and many value it by tradition for its link with Najaf and with purity. We share that as custom only. This family is not usually treated; message us on WhatsApp quoting AG-000218 and we will tell you what we know about this particular stone.

If you are thinking of a pendant, ask us about a custom silver setting and we can talk it over in chat. An independent lab test is available if you want one. More stones are in the Dur-e-Najaf collection, all of them priced individually by weight.

Open the parcel with the rider still there, check the stone, then pay; Karachi in about 1–2 working days, other cities in 2–4, and 7 days to return. Read our Dur-e-Najaf guide before you choose.

This particular stone

This listing is one natural dur-e-najaf with a weight of 77.55 Carat. Its price is Rs. 6,380 — roughly Rs. 82 for each carat. Origin: Pakistan. Treatment: treatment not tested. Quote reference AG-000218 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.

Above twelve carats you are into collector territory. Pieces this heavy are usually set as pendants or kept loose, and they are prized for the size of rough they came from. If you do set it, choose a bezel or a heavy claw to protect the edges.

On the Mohs scale dur-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 dur-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 dur-e-najaf 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): Dur-e-Najaf (clear 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.