A natural topaz of 9.85 carats, about 10.82 ratti, at Rs. 19,700 – Rs. 2,000 per carat, the lowest rate in this category. Its colour is recorded as blue.

A broad, solid stone

Its outline fills about 86% of its bounding box, the fullest of the seventeen stones here – a broad cushion with very little wasted outline, about 1.16 times as long as it is wide. In the hand that reads as a bigger stone than its carat weight suggests, because almost none of the width is lost to a tapering shape.

About 91% of its face reads as blue and 54% as a strong saturated blue, with roughly 6% near-colourless. It is brilliant-faceted and clearly blue.

Nearly ten carats at the bottom of our range

Five stones in this category are priced at exactly Rs. 2,000 per carat, this one among them. That flat figure is a pricing decision rather than a stone-by-stone judgement, and we would rather tell you so than imply each number was finely weighed.

What it means in practice is that the large stones here are the better value per carat, which is the opposite of how a scarce gem behaves. Blue topaz is not scarce.

Where the blue comes from

Almost all blue topaz is irradiated and then heated. Natural blue topaz is rare and very faint; the blues sold everywhere begin as colourless topaz, are irradiated to create the colour, and heated to fix it. The result is permanent and accepted across the trade. For this stone the treatment has not been tested and there is no laboratory report.

Mohs 8, and the cleavage

Topaz is 8 on the Mohs scale but has perfect basal cleavage: a plane along which a sharp knock splits it cleanly whatever its hardness. At nearly ten carats this is a pendant stone or a well-protected ring in a bezel. No ultrasonic cleaner, no steam, no sudden temperature change. Warm water, mild soap and a soft brush.

Ordering

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

This particular stone

This listing is one natural topaz, known in Urdu as Sunehla, with a weight of 9.85 Carat. Its price is Rs. 19,700 — roughly Rs. 2,000 for each carat. Treatment: treatment not tested. Quote reference GS-000497 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.

From six carats up a stone becomes the centre of attention. It wants a broader shank or a secure claw setting and suits an occasion ring, a signet or a centre pendant. Clean natural material of this size turns up far less often, and the per-carat rate reflects that.

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.