A Pakistani ruby, and a big one: eight carats of red yaqoot. Here is what to expect when it arrives.

• It weighs 8.00 carats, a large ruby by any normal measure, and comes from Pakistan.
• The colour is red and the Mohs hardness is 9.
• Heating is common in ruby and the lowest grades may be glass-filled; ask us what we know about this stone.
• Check the colour in daylight and again under a warm lamp, and see whether it stays the same.
• Look for inclusions with a loupe, since ruby almost always has some.
• Keep the reference AG-000539 for any WhatsApp message.

A stone this heavy makes most sense in a pendant or a broad ring with a secure setting. Our shipping policy describes the courier we use, and delivery is a flat Rs. 500 per order. For more stones, visit ruby (yaqoot).

It travels Cash on Delivery: check it in front of the rider, then pay. Expect it in 1–2 working days in Karachi or 2–4 in other big cities, and remember the 7-day return policy if it does not suit you. Our ruby guide is worth reading.

This particular stone

This listing is one natural ruby, known in Urdu as Yaqoot, with a weight of 8 Carat. Its price is Rs. 12,750 — roughly Rs. 1,594 for each carat. Origin: Pakistan. Treatment: treatment not tested. Quote reference AG-000539 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 ruby rates 9. 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 ruby 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 ruby 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): Most ruby (yaqoot) is heated, and lower grades may be glass-filled; we do not sell glass-filled ruby as natural ruby. 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.