Aquamarine often grows large, so fifteen carats counts as mid-to-large for the gem. On the hand it fills a ring comfortably without looking heavy, and it is a natural size for a pendant. You only start needing a heavy setting above twenty or thirty carats.

This natural aquamarine (beruj) weighs 15.05 carats and is sea blue; the reference is AG-000284.

What to look for in aquamarine

Look at the blue first: it should be even and calm, not cloudy. Then look for liquid-like inclusions or feathers, which are common in this beryl and best checked in daylight. Heating to remove a green cast is common in aquamarine, so ask what is known about any stone you are considering. For this one, message us on WhatsApp; an independent lab test is your option.

Its hardness of 7.5 to 8 means a ring will wear well. The aquamarine guide covers the traditional side, and more pieces are listed under aquamarine.

It comes Cash on Delivery, so you check it before paying; Karachi usually gets it in 1–2 working days, the rest of Pakistan in 2–4, and returns are accepted for 7 days.

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 AG-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, 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.