Who suits a 37.4 carat Afghan aquamarine? Anyone who wants a big, calm-blue stone for a statement pendant or a broad ring, and who prefers size over a small, intense gem.

The stone in detail

This is a natural aquamarine (beruj) of 37.4 carats from Afghanistan, noted as sea blue. It is listed at Rs. 22,500, about Rs. 602 per carat, and the reference is GS-000280. Heating is routine in aquamarine, used to clear greenish tones towards a cleaner blue; ask us on WhatsApp +92 308 887 3888 what we know about this exact stone. Independent lab testing is available on request.

Setting and daily wear

At 7.5 to 8 on the Mohs scale, aquamarine handles regular wear well, so a ring is realistic if the mount protects the edges. A stone this large is heavy for earrings, which makes a pendant the natural choice. Warm soapy water and a soft brush keep it bright. Beruj is also the March birthstone, a point covered in our March birthstone article, and other sizes are in the aquamarine collection.

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 aquamarine, known in Urdu as Beruj, with a weight of 37.4 Carat. Its price is Rs. 22,500 — roughly Rs. 602 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference GS-000280 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 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.