A 4.8 carat aquamarine sits in the middle of the weight range, where size and colour are balanced against how easy such stones are to find. Its price per carat is typical for that band, which makes it a fair yardstick when you compare.

It is a natural aquamarine, beruj in Urdu, from Afghanistan, in sea blue. At 7.5 to 8 on the Mohs scale it suits rings as well as pendants. If you want to see its shape, ask us for pictures on WhatsApp, quoting AG-000272.

Treatment and testing

Aquamarine is commonly heated so that the green fades and the blue deepens. We will tell you what we know about this exact stone, and an independent lab test is your option if you want one.

To compare, the aquamarine category lists the other weights.

For a ring at this size, a bezel or four-claw silver setting works well. Clean the stone with mild soapy water and a soft brush, and keep it in its own pouch away from harder gems.

Open the parcel, check the stone, then pay the rider; Karachi usually takes 1–2 working days, other cities 2–4, and you can return it within 7 days. Read our aquamarine guide as well.

This particular stone

This listing is one natural aquamarine, known in Urdu as Beruj, with a weight of 4.8 Carat. Its price is Rs. 8,630 — roughly Rs. 1,798 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference AG-000272 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 aquamarine rates 7.5 to 8. 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 aquamarine 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 aquamarine 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): Aquamarine is commonly heated to remove green tones and leave a purer blue. 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.