A natural topaz of 13.82 carats, about 15.19 ratti, at Rs. 57,750 – roughly Rs. 4,179 per carat. Its colour is recorded as blue.

What "premium" means here, and what it does not

What is certain. It is the dearest stone here in total at Rs. 57,750, and the highest rate per carat at Rs. 4,179, where five other stones sit at Rs. 2,000. It is also the second largest at 13.82 carats. It is a broad cushion, filling about 84% of its bounding box and measuring about 1.20 times as long as it is wide.

What it does not mean. It is not the strongest blue here. About 80% of its face reads as blue and 38% as a strong saturated blue, where another stone in this category reaches 69% – and that stone costs Rs. 15,000. On colour alone, you can do better here for less.

It also does not mean graded. No stone in this category has a laboratory report, this one included, and two of the names we were given claimed certification; both were refused.

At this price, ask us for a video before ordering, and ask us to arrange independent testing. We would rather you did.

Treatment, which matters most at this price

Almost all blue topaz is irradiated and then heated. Natural blue topaz is rare and faint; the blues on the market begin as colourless topaz, are irradiated to create the colour and heated to fix it. The result is permanent and accepted throughout the trade – but it is also the reason blue topaz is an inexpensive stone, and why a large blue topaz should never be priced as though its colour were a natural rarity.

For this stone the treatment has not been tested and there is no laboratory report. The honest expectation is that it is irradiated and heated like effectively all blue topaz.

Mohs 8, and the cleavage

Topaz is 8 on the Mohs scale and still has perfect basal cleavage: a plane along which a knock can split it cleanly. At nearly fourteen carats this is a pendant stone or a very well protected ring, in a bezel. No ultrasonic cleaner, no steam, no sudden heat.

Ordering

One stone, sold once. Message us on WhatsApp for more photographs or a video before ordering, and we deliver across Pakistan.

This particular stone

This listing is one natural topaz, known in Urdu as Sunehla, with a weight of 13.82 Carat. Its price is Rs. 57,750 — roughly Rs. 4,179 for each carat. Treatment: treatment not tested. Quote reference GS-000484 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 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, 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): 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.