Katlang, in Mardan district, is one of Pakistan's best-known topaz sources, and this 5.85 carat stone is listed from there. It is a mid-to-large size for topaz, enough to make a ring look substantial without weighing it down.

Topaz grows in big crystals, so size alone does not make it rare; colour and clarity decide the value. This is a natural topaz, known here as pukhraj or sunehla, in yellow. Look for a clean golden colour and a transparent body that lets light through.

Golden topaz tends to be left in its natural state, and heating is behind certain other colours. Ask on WhatsApp and we will tell you what we know about this exact stone.

It rates 8 on the Mohs scale. For a ring, choose a setting with protected edges, because topaz can cleave if struck hard.

Its reference is AG-000485, and you will find the rest in the topaz category.

When it arrives, open it with the rider still there and pay only if you are happy. Karachi usually gets it in 1–2 working days, the rest of Pakistan in 2–4, and you can return it within 7 days in its original packing. Before you choose, read our topaz guide.

This particular stone

This listing is one natural topaz, known in Urdu as Sunehla, with a weight of 5.85 Carat. Its price is Rs. 14,250 — roughly Rs. 2,436 for each carat. Treatment: treatment not tested. Quote reference AG-000485 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 topaz rates 8. Few materials will scratch it, so it copes well with everyday ring wear. A soak in warm water with a drop of mild soap and a soft brush keeps it bright; skip the ultrasonic cleaner if inclusions reach the surface.

Whoever you buy topaz 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 topaz 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): Yellow and golden topaz is usually untreated, though some colours are produced by heating. 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.