Lift 12.9 carats of aquamarine to a window and you notice how quietly it takes the light. It is a cool sea blue without loud sparkle, more like shallow water than a jewel, and that calm is exactly why people buy beruj.

This is a natural aquamarine. As a family, aquamarine is often heated to ease out green tones, and we say so openly. For this exact stone, message us on WhatsApp quoting AG-000277 and we will tell you what we know.

At 7.5 to 8 on the Mohs scale it is hard enough to wear in a ring without worry, though the mount should cover the edges. It is also a comfortable size for a pendant that sits quietly against a collar.

Wash it in lukewarm soapy water, dry it with a soft cloth, and keep it apart from harder gems in your jewellery box. An independent lab test is your option. See the rest of the aquamarine range to compare.

Pay the rider only after the parcel is open and you have looked; Karachi orders usually arrive in 1–2 working days, other cities in 2–4, and you have 7 days to return it. Read our aquamarine guide too.

This particular stone

This listing is one natural aquamarine, known in Urdu as Beruj, with a weight of 12.9 Carat. Its price is Rs. 21,530 — roughly Rs. 1,669 for each carat. Treatment: treatment not tested. Quote reference AG-000277 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, 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.