Is 9.35 carats too big? For most hands it is not. In black agate, which is a light stone for its volume, this weight gives a ring face that looks assured without looking heavy.

What colour is it?

Black. Like nearly all black agate it is dyed, which is the accepted practice, so look for evenness and polish rather than hunting for an undyed tone.

Is it tough enough for a ring?

The Mohs hardness is 6.5 to 7, which suits regular wear. Avoid knocking it on hard surfaces and keep it away from harsh chemicals.

What does it cost?

Rs. 1,400, about Rs. 150 per carat. Ask us on WhatsApp for anything else you want to know, quoting GS-BL-0017.

The black agate range has more sizes if you want to compare.

Pendants suit this size well. A short chain keeps the stone close to the chest, where it is least likely to meet a table edge. If you want it as a ring instead, a thick silver band will carry the weight without strain. Either way, please look at it in daylight when the parcel is opened.

Cash on Delivery is available across Pakistan, so you inspect the stone before paying, and returns are accepted within 7 days of delivery. Before you choose, read our black agate guide.

This particular stone

This listing is one natural black agate with a weight of 9.35 Carat. Its price is Rs. 1,400 — roughly Rs. 150 for each carat. Treatment: treatment not tested. Quote reference GS-BL-0017 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.

From six carats up a stone becomes the centre of attention. It wants a broader shank or a secure claw setting and suits an occasion ring, a signet or a centre pendant. Clean natural material of this size turns up far less often, and the per-carat rate reflects that.

On the Mohs scale black 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 black 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 black agate 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): Black agate is almost always dyed — it is standard for the stone. 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.