The most useful fact about this 4.72 carat purple sapphire from Kashmir is its toughness. Sapphire rates 9 on the Mohs scale, second only to diamond among common gems, and for anyone who wants a ring that copes with daily life, that matters more than colour or price.

Being so hard, it shrugs off scratches from dust and from other stones, and it can be worn on a busy hand. The usual advice still applies: guard the edges with a closed setting and keep the stone in its own pouch. Warm soapy water and a soft brush clean it well.

The colour is purple, and the reference is AG-00099. Purple sapphire is often heated to refine its colour, and stones that never were are harder to find. Message us on WhatsApp and we will tell you what we know about this particular stone; having it tested independently is your choice.

Compare it with other pieces on the purple sapphire page, or read the purple sapphire buying guide.

Cash on Delivery means you see it before you pay; Karachi in about 1–2 working days, other cities 2–4, and 7 days to return it if it is not for you.

This particular stone

This listing is one natural purple sapphire with a weight of 4.72 Carat. Its price is Rs. 7,500 — roughly Rs. 1,589 for each carat. Origin: Kashmir. Treatment: treatment not tested. Quote reference AG-00099 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.

On the Mohs scale purple sapphire rates 9. 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 purple sapphire 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 purple sapphire 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): Purple sapphire is often heated to refine its colour; unheated stones are less common. 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.