Silver suits blue topaz well. The cool white metal sharpens the blue, while yellow gold warms it towards aqua. At 13.35 carats this stone is big enough to anchor a pendant on its own, or to sit as the centre of a man's ring with a solid, low bezel. If you want a custom silver ring setting built around it, talk to us on WhatsApp and we can discuss the design.

The listing title uses pukhraj, which the Pakistani trade often applies to topaz, so be clear on what this is: a blue topaz, not a yellow sapphire. It costs Rs. 16,880, which is about Rs. 1,264 per carat. The reference to quote is GS-00043.

Durability and colour

Topaz is an 8 on the Mohs scale, comfortably harder than everyday grit, so scratches are rarely a worry. Cleavage is the real caution: avoid hard knocks and remove the ring for gym or garden work. The blue comes from irradiation and heating, standard for this gem and stable afterwards. Avoid ultrasonic and steam cleaning, and use a soft brush with mild soap.

See other options in the blue topaz category.

Order with Cash on Delivery anywhere in Pakistan: open the parcel, check the stone, then pay. If it is not right for you, you have 7 days to return it. Before you choose, read our blue topaz guide.

This particular stone

This listing is one natural blue topaz with a weight of 13.35 Carat. Its price is Rs. 16,880 — roughly Rs. 1,264 for each carat. Origin: Pakistan. Treatment: treatment not tested. Quote reference GS-00043 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 blue 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 blue 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 blue topaz 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): Blue topaz gets its blue colour from irradiation and heating — this is standard for the stone and the colour is stable. 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.