Beruj is the name aquamarine carries in Urdu, and if you grew up with it you probably heard it alongside a description of the sea. The word for the gem in most languages points the same way — aquamarine itself is Latin for sea water — and it describes the colour better than any grading term does.

The stone

15.05 carats, which is 16.54 ratti. Rs. 9,750, about Rs. 648 per carat, reference GS-000284. One piece, photographed as it is.

Beruj, aquamarine, beryl: the names

• Beruj (بیروج) — the Urdu trade name used across Pakistan.
• Aquamarine — the gemmological name for blue to blue-green beryl.
• Beryl — the mineral itself. Emerald is the same mineral in green; morganite is the pink one.
• Santa Maria — a trade grade sometimes quoted for exceptionally deep blue material, not a species.

Our Urdu and English gemstone name list matches the rest of the stones by both names, which saves confusion when a jeweller and a website call the same gem different things.

What 15 carats gets you

This is the size most buyers settle on for a ring. It fills a 925 silver band properly without overhanging the finger, and at Rs. 648 per carat it sits in the sensible middle of the market — above the heavily included material and below the clean, strongly coloured stones. If you want one aquamarine to wear rather than a collector's piece, this is the band of the market to shop in.

Why is aquamarine affordable at this size?

Because beryl grows in large, often clean crystals. For sapphire or ruby the per-carat rate climbs steeply with weight, since big clean rough is rare; for aquamarine it barely moves. A 15 carat aquamarine is an ordinary thing, which is good news if you want presence on the hand without a jeweller's price.

Treatment

Aquamarine is commonly heated to remove green tones and leave a purer blue. That is standard, permanent and accepted in the trade. We have not tested this stone, so our specification says "treatment not tested" instead of claiming it is unheated. Independent laboratory testing can be arranged and a certificate of authenticity comes on request.

Tradition

Beruj has long been associated with calm, clear speech and safe travel, particularly by sea. These are traditions, not promises, and we pass them on as traditions — our beruj guide sets out the background along with the practical side of setting and wearing one.

Care

Beryl is 7.5 to 8 on the Mohs scale, harder than quartz and fine for regular wear, though an edge can chip on a sharp knock. A bezel protects better than tall claws. Warm soapy water and a soft brush; keep it away from steam cleaners.

Ordering

Shape and measurements have not been recorded for this piece — message us on WhatsApp at +92 308 887 3888 and we will measure it before your jeweller makes a mount. Flat Rs. 500 delivery anywhere in Pakistan, insured and tracked, dispatched in one to two working days. Cash on Delivery, seven days to return it unused. More in the beruj collection.

This particular stone

This listing is one natural aquamarine, known in Urdu as Beruj, with a weight of 15.05 Carat. Its price is Rs. 9,750 — roughly Rs. 648 for each carat. Treatment: treatment not tested. Quote reference GS-000284 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.