Few stones are as hard to describe on paper as a good Afghan aquamarine, and this 6.75 carat piece makes the problem plain: it is a sea blue whose true shade only shows in your own hand and your own light. Photographs help, but the real colour reaches you only when the parcel is open in your hand.

It is a natural aquamarine, beruj in Urdu, from Afghanistan, and it costs Rs. 8,630, about Rs. 1,279 per carat. Ask us for extra photographs on WhatsApp if you want to study its shape. Reference GS-000262 when you write.

Heat treatment to clear green undertones is routine in aquamarine, and we will tell you what we know about this stone on request. Independent lab testing can be arranged too. Hardness runs 7.5 to 8, strong enough for a ring, which at this size would sit boldly on the hand.

Anyone weighing it against other beryl can look through the aquamarine range, and the aquamarine notes cover the traditional beliefs people attach to it. Cash on Delivery means you may inspect before paying.

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.

This particular stone

This listing is one natural aquamarine, known in Urdu as Beruj, with a weight of 6.75 Carat. Its price is Rs. 8,630 — roughly Rs. 1,279 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference GS-000262 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.

From six carats up a stone becomes the centre of attention. It wants a broader shank or a secure claw setting and suits an occasion ring, a signet or a centre pendant. Clean natural material of this size turns up far less often, and the per-carat rate reflects that.

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, 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): 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.