Here is a 58.4 carat shajri aqeeq, or moss agate, priced at Rs. 3,750, which is about Rs. 64 per carat. Below is a quick checklist of what we know about it and what to look at when it arrives.

• Stone: natural moss agate, a fine-grained quartz known in Urdu as shajri aqeeq.
• Look: green, moss-like inclusions, which differ from one stone to the next.
• Hardness: 6.5 to 7 on the Mohs scale, comfortable for ring or pendant use.
• Treatment: moss agate is not normally enhanced; ask on WhatsApp about this exact stone.
• On arrival: hold it up to daylight and check the pattern for yourself before paying, since Cash on Delivery lets you inspect it.
• Reference to quote: GS-000429.

At this weight, the stone has plenty of room for its inclusions to show, which is where moss agate earns its character, and the Mohs hardness of 6.5 to 7 means that pattern survives ordinary handling without trouble. An independent lab test can be arranged. Our moss agate quality guide explains what to look for in the pattern.

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 moss agate, known in Urdu as Shajri Aqeeq, with a weight of 58.4 Carat. Its price is Rs. 3,750 — roughly Rs. 64 for each carat. Treatment: treatment not tested. Quote reference GS-000429 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 moss agate 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 moss agate 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 moss agate 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): Moss agate (shajri aqeeq) 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.