This is a 3.9 carat peridot, called zabarjad in Urdu, from Afghanistan. Here is a checklist for what matters with it.

• Colour: a rich olive green, the signature peridot shade.
• Weight and price: 3.9 carats at Rs. 21,000, about Rs. 5,385 per carat.
• Hardness: 6.5 to 7 on the Mohs scale, fine for pendants and for rings with some care.
• Treatment: peridot is seldom treated; ask us what we know about this exact stone.
• On arrival: tilt it under daylight and look for even colour with no chips on the edges.
• Reference: GS-000337 when you message us.

Independent lab testing is available on request. Peridot can scratch if worn daily in a ring, so a bezel setting in silver adds protection. In Vedic belief the stone is linked with Mercury, though treat that as tradition. More stones are shown in the peridot category.

Peridot is sometimes called the evening emerald in the trade for its green, but it is a different mineral with a yellower, olive tone.

Order with Cash on Delivery anywhere in Pakistan: open the parcel, check the stone, then pay. If it is not right for you, you have 7 days to return it. Before you choose, read our peridot guide.

This particular stone

This listing is one natural peridot, known in Urdu as Zabarjad, with a weight of 3.9 Carat. Its price is Rs. 21,000 — roughly Rs. 5,385 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference GS-000337 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 peridot rates 6.5 to 7. That is middle-of-the-road hardness: comfortable in pendants and earrings, and in rings worn with some care. Store it apart from harder stones so it does not pick up scratches, and wipe it with a damp cloth rather than scrubbing.

Whoever you buy peridot 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 peridot 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): Peridot 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.