Seven and a quarter carats puts this opal firmly in the large category. Most opals sold for jewellery are far smaller, so a 7.25 carat Ethiopian multi fire opal will look substantial in anything you set it in. That is the main thing to understand about it.

Large size has practical consequences. A stone this big is more likely to catch on clothing or knock against surfaces, and since opal is only 5.5 to 6.5 on Mohs, a pendant is the more comfortable choice. If you want a ring, ask a jeweller for a deep bezel.

The listing says multi fire, so look for several colours shifting across the surface. In any opal of this family, check for hairline cracks, for patches that look dull or chalky, and for how consistently the colour appears from different angles. Price is Rs. 18,000, about Rs. 2,483 per carat, and the reference is GS-000731.

Solid opal is usually left alone, though smoke and sugar treatments exist, and doublets and triplets are traded. We sell solid natural opal; ask what we know about this one. Look through the opal collection for other weights.

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 gemstone buying guide.

This particular stone

This listing is one natural ethiopian opal with a weight of 7.25 Carat. Its price is Rs. 18,000 — roughly Rs. 2,483 for each carat. Origin: Ethiopia. Treatment: treatment not tested. Quote reference GS-000731 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.

Whoever you buy ethiopian opal 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 ethiopian opal 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): Solid opal is usually untreated; some opal is smoke- or sugar-treated, and doublets/triplets exist — we sell solid natural opal. 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.