Whether you are studying the photographs or holding the parcel, these are the things to check on this 7.30 carat white topaz.

• It is a natural, colourless stone, so brightness and a clean interior matter most.
• Hardness is 8 on the Mohs scale, good for a ring and resistant to everyday scratches.
• Look along the edges for chips, because topaz can cleave when struck.
• Turn it under a lamp and then in daylight to confirm the sparkle is even.
• Colourless topaz is normally not treated; ask us what we know about this exact stone.
• For extra photographs, message us on WhatsApp quoting AG-WH-0006.

The courier lets you open the parcel and look the stone over before handing over any payment, and an unused stone can come back within 7 days of delivery. If you like the weight but want to compare, visit the white topaz page.

At 7.30 carats the stone sits mid-range for this gem: broad enough to look generous in a ring, light enough that a pendant chain carries it easily. A snug silver setting suits it.

Karachi orders usually arrive in 1 to 2 working days, and Lahore, Islamabad and other major cities in 2 to 4. Before you choose, read our white topaz guide.

This particular stone

This listing is one natural white topaz with a weight of 7.3 Carat. Its price is Rs. 6,570 — roughly Rs. 900 for each carat. Treatment: treatment not tested. Quote reference AG-WH-0006 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 white topaz rates 8. Few materials will scratch it, so it copes well with everyday ring wear. A soak in warm water with a drop of mild soap and a soft brush keeps it bright; skip the ultrasonic cleaner if inclusions reach the surface.

Whoever you buy white topaz 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 topaz 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): Colourless (white) topaz is normally 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.