The questions we hear most about a stone like this 21.15 carat white agate, answered briefly.

Is it a good size for a ring?

For a man's hand, yes, in a broad silver bezel. On a slim finger it will look large, so a pendant may suit better.

Has it been treated?

White agate is usually left natural, but we cannot generalise to a single stone. Ask us on WhatsApp with the reference AG-WH-0003 and we will tell you what we know. Independent lab testing is your choice.

How tough is it?

It measures 6.5 to 7 on the Mohs scale, good for everyday wear with ordinary care.

How should I judge the colour?

White agate looks softest in natural light, so view it by a window when it arrives rather than under a bulb.

How do I look after it?

Store it in a soft pouch of its own, clean it with lukewarm water and a soft cloth, and avoid harsh chemicals.

More weights are shown under white agate. Before you choose, read our white agate guide.

Cash on Delivery across Pakistan: check, then pay. Karachi usually 1–2 working days, other cities 2–4, and 7-day returns.

This particular stone

This listing is one natural white agate with a weight of 21.15 Carat. Its price is Rs. 3,150 — roughly Rs. 149 for each carat. Treatment: treatment not tested. Quote reference AG-WH-0003 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 white agate rates 6.5 to 7. That is middle-of-the-road hardness: comfortable in pendants and earrings, and in rings worn with some care. Store it apart from harder stones so it does not pick up scratches, and wipe it with a damp cloth rather than scrubbing.

Whoever you buy white agate 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 white agate 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): White agate is usually untreated. 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.