Reference AG-000868 is a 2.1 carat Ceylon neelam. Here is a quick summary, then a few things to do on the day it arrives.

• Natural blue sapphire, known in Urdu as neelam, with Ceylon (Sri Lanka) given as its origin.
• 2.1 carats in weight.
• 9 on the Mohs scale, so a daily-wear ring is no problem.
• Heating is common for sapphire; ask what we know about this stone before you pay.

When the courier arrives, open the parcel in front of the rider. Hold the stone up to daylight and run your eye along the edges for chips. Compare it carefully with the photographs. If you want an independent report afterwards, lab testing is your choice.

Questions on the day can come straight to us on WhatsApp. We are happy to talk about colour or a setting while you are holding the stone. Please keep the original packaging too, because a return needs it.

Similar stones are in the sapphire collection, and our sapphire guide explains what to check.

Cash on Delivery runs everywhere in Pakistan, so you only pay after the stone has passed your own inspection. Karachi orders usually take 1–2 working days, other cities 2–4, and returns stay open for 7 days.

This particular stone

This listing is one natural sapphire, known in Urdu as Neelam, with a weight of 2.1 Carat. Its price is Rs. 15,000 — roughly Rs. 7,143 for each carat. Origin: Ceylon (Sri Lanka). Treatment: treatment not tested. Quote reference AG-000868 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 sapphire rates 9. Few materials will scratch it, so it copes well with everyday ring wear. A soak in warm water with a drop of mild soap and a soft brush keeps it bright; skip the ultrasonic cleaner if inclusions reach the surface.

Whoever you buy sapphire 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 sapphire for those three points before it is listed, 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. No lab report yet; independent testing welcome. As general background (not a statement about this stone): Most sapphire on the market is heated to improve colour and clarity; unheated stones exist and cost more. 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.