For Dur-e-Najaf, 16.45 carats is a middling size. Quartz grows in large crystals, so it is found far bigger than sapphire or ruby ever is, and a stone of this weight is moderate rather than showy. In a ring it makes a fair statement; on a chain it looks quiet and neat.

It is clear and transparent, and it rates 7 on the Mohs scale.

What to look for in clear quartz

Make sure it is genuinely transparent, look inside for feathers or cloudy patches, and check that no edges are chipped. Glass copies exist for every clear stone, which is exactly why we suggest you examine it on delivery before paying. If you want extra reassurance, having it tested by an independent lab is up to you.

Message us on WhatsApp quoting AG-000213 and we will tell you what we know about this particular stone, including anything we have heard about enhancement. You can compare it with others in the Dur-e-Najaf category.

Cash on Delivery means you see it before paying; Karachi deliveries take about 1–2 working days, the rest of Pakistan 2–4, and returns run for 7 days. Have a look at our Dur-e-Najaf guide.

This particular stone

This listing is one natural dur-e-najaf with a weight of 16.45 Carat. Its price is Rs. 3,000 — roughly Rs. 182 for each carat. Treatment: treatment not tested. Quote reference AG-000213 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.