40.20 carats — 44.18 ratti — at Rs. 6,040, about Rs. 150 per carat. The reference is GS-IR-0013.

Why this one is a pendant stone

Two reasons, and both come off the stone itself. It weighs over 40 carats, which is more than most people want sitting on a finger, and its outline measures a width-to-height ratio of 0.98 — effectively square, a cushion with softened corners rather than an oval. A near-square stone of this size hangs squarely and reads well flat against the chest, where an elongated oval of the same weight would look narrow.

It will need a proper bail and a stout chain. At this weight a thin chain is not just a style mistake, it is a durability one.

What the photograph actually shows

86% of its measurable colour sits in the red band — the second-highest reading in this category — against 35% of the surface measuring near-neutral. Brightness is 77 out of 255. The face is dominated by vivid red jasper bands, tightly striped, with a dark hematite mass filling one side of the stone. The contrast between the two halves is the striking thing about it.

What tiger iron is

A banded rock rather than a single mineral: jasper, hematite and sometimes golden tiger's eye in alternating layers. The proportion of each varies from piece to piece, and on this one the balance has fallen heavily towards jasper on one side and hematite on the other, rather than the even striping you see on the 40.85 and 41.25 carat stones.

Durability and care

About 7 on the Mohs scale through the jasper and softer through the iron-rich bands. Warm water, soft cloth, no ultrasonic cleaner. As a pendant it will see fewer knocks than a ring stone would, which suits banded material.

This stone has not been tested, so its treatment reads "not tested" rather than untreated, and we hold no documented origin. Message +92 308 887 3888 for more. The rest of the range is in the iron tiger eye category.

Cash on Delivery is available across Pakistan, so you inspect the stone before paying, and returns are accepted within 7 days of delivery. Our buying guide covers setting heavier stones.

This particular stone

This listing is one natural iron tiger eye with a weight of 40.2 Carat. Its price is Rs. 6,040 — roughly Rs. 150 for each carat. Treatment: treatment not tested. Quote reference GS-IR-0013 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 iron tiger eye 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 iron tiger eye 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 iron tiger eye 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): Iron tiger eye 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.