At 40.75 carats this Dur-e-Najaf is for the buyer who wants a substantial quartz crystal, whether for a heavy pendant, a large ring for a man's hand, or a piece that is simply kept.

Size, price and hardness

The stone costs Rs. 6,380, which is about Rs. 157 per carat. Quartz is plentiful, so per-carat rates in this family ease as the weight rises; the figure here reflects size rather than any lack of quality. Hardness is 7 on the Mohs scale.

What to check and ask

Clear quartz is often imitated in glass, so look closely when you open the parcel. A real crystal feels cool in the hand, warms slowly, and usually carries tiny natural internal features. You are welcome to inspect the stone before paying on delivery.

Enhancement is not usual for quartz, but you can ask us about this stone on WhatsApp (+92 308 887 3888) and quote GS-00061. A certificate is available on request. The full Dur-e-Najaf range has smaller options too.

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 dur e najaf guide.

This particular stone

This listing is one natural dur-e-najaf with a weight of 40.75 Carat. Its price is Rs. 6,380 — roughly Rs. 157 for each carat. Treatment: treatment not tested. Quote reference GS-00061 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, 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): 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.