What does a buyer of an 18.25 carat yellow agate usually want to know first? Mostly, whether it will be too large to wear. For a man's hand, a stone of this weight in a broad silver bezel is a normal ring size; on a pendant it will hang with presence.

Is the colour dyed?

Yellow agate is often dyed, so we do not want to guess on your behalf. Quote GS-YE-0015 on WhatsApp and we will tell you what we know about this piece, and an independent lab test is available if you want written confirmation.

Will it scratch easily?

It rates 6.5 to 7 on the Mohs scale, which is sturdy for jewellery. Keep it apart from harder gems and wipe it with a soft damp cloth.

Does the size suit a pendant?

It does. Pick a strong chain or cord, since the stone carries real weight.

How much is it?

The price is Rs. 2,700, or about Rs. 148 per carat. At this weight a pendant cap on a sturdy chain also works well. Other weights live under yellow agate if you want to compare.

Pay Cash on Delivery once you have opened the parcel and seen the stone yourself, anywhere in Pakistan, with 7 days to return it if you change your mind. Before you choose, read our yellow agate guide.

This particular stone

This listing is one natural yellow agate with a weight of 18.25 Carat. Its price is Rs. 2,700 — roughly Rs. 148 for each carat. Treatment: treatment not tested. Quote reference GS-YE-0015 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 yellow 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 yellow 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 yellow 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): Yellow agate is often dyed. 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.