Ethiopian opal is known for lively play of colour, and this 2.3 carat stone is listed as multi fire, meaning several colours can show as you tilt it. When it arrives, look at it under daylight and then under a warm lamp, because opal can look quite different between the two.

Before you pay for any opal, though, ask about treatment. In the trade, solid opal is mostly sold as mined, but some stones are smoke- or sugar-treated to darken them, and doublets and triplets (thin slices glued to a backing) are sold alongside solid stones. Authentic Gems sells solid natural opal only.

The reference for this stone is AG-000705. For what we know about it, message us on WhatsApp and ask directly. If you want written confirmation, independent lab testing is your choice to arrange.

Care is simple but it matters. A hardness of 5.5 to 6.5 on the Mohs scale means opal scratches more easily than most gems in a jeweller's tray. Clean it only with a soft cloth and lukewarm water, never hot, and store it wrapped on its own. Our gemstone care guide has more detail, and the full opal range is on the category page.

It travels Cash on Delivery, so you open it, look, and then pay. Karachi usually receives in 1–2 working days, other cities in 2–4, and you have 7 days to return it.

This particular stone

This listing is one natural ethiopian opal with a weight of 2.3 Carat. Its price is Rs. 7,500 — roughly Rs. 3,261 for each carat. Origin: Ethiopia. Treatment: treatment not tested. Quote reference AG-000705 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.

Between two and six carats is the range most people choose for a gents' ring or a noticeable pendant. Here colour drives the price more than size does, which is why two stones of near-identical weight can be priced very differently.

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, 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): 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.