Twelve carats is about where amethyst stops being a small gem and starts being a feature. This 12.8 carat stone sits well above the middle of the size range for the family, and wearing it is a decision about how visible you want it to be.

A stone this size carries its colour deeply, so a purple that looks pale in a small stone can read well here. Look at what to check in any larger amethyst: an even colour through the body, no pale zones, a clean cut and no chips on the edges. This piece has a laser cut and a purple colour; check the facets in daylight when it arrives.

The price is Rs. 18,380, about Rs. 1,436 per carat, and the reference is GS-000238. Large amethysts generally carry lower per-carat rates than small, so the total is easy on the pocket for the size.

It is a natural stone. A few stones are warmed to lighten them, though most are sold as found, and we can pass on what we know on WhatsApp. For wear, a closed-back silver setting protects it; at Mohs 7 it is happy with occasional use. See the amethyst range for other weights.

Cash on Delivery is available across Pakistan, so you inspect the stone before paying, and returns are accepted within 7 days of delivery. Before you choose, read our amethyst guide.

This particular stone

This listing is one natural amethyst, known in Urdu as Jamunia, with a weight of 12.8 Carat. Its price is Rs. 18,380 — roughly Rs. 1,436 for each carat. Treatment: treatment not tested. Quote reference GS-000238 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 amethyst 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 amethyst 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 amethyst 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): Amethyst is usually untreated, though some stones are heated to lighten the colour. 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.