Here is a 5.15 carat natural amethyst with a laser cut, listed at Rs. 13,130 (about Rs. 2,550 per carat). Before you order, run through this short list.

• Weight: 5.15 carats, a comfortable size for a ring or a pendant.
• Colour: purple, the shade sold in Pakistan as Jamunia.
• Cut: laser cut, so look at the edges and the facets in daylight when the parcel arrives.
• Hardness: Mohs 7, fine for regular wear when the setting guards the rim.
• Heat: amethyst mostly arrives as mined, though a few stones are warmed to lighten the colour; ask what we know about this piece.
• Reference: quote GS-000222 on WhatsApp.

With Cash on Delivery you can open the parcel and inspect the stone before you pay, and a certificate is available on request. A stone of this size is easy to live with: it is large enough to show its colour on the hand, yet light enough that a slim silver band will carry it without strain. If you would like to see other sizes, our amethyst collection lists every loose stone separately, and a short guide to caring for amethyst covers sun, soap and storage.

Pay Cash on Delivery once you have opened the parcel and seen the stone yourself, anywhere in Pakistan, with 7 days to return it if you change your mind.

This particular stone

This listing is one natural amethyst, known in Urdu as Jamunia, with a weight of 5.15 Carat. Its price is Rs. 13,130 — roughly Rs. 2,550 for each carat. Treatment: treatment not tested. Quote reference GS-000222 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.

Between two and six carats is the range most people choose for a gents' ring or a noticeable pendant. Here colour drives the price more than size does, which is why two stones of near-identical weight can be priced very differently.

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.