A natural tanzanite of 5.80 carats, about 6.37 ratti, at Rs. 13,130 – roughly Rs. 2,264 per carat.

Why this is the one listing here that says violet

Of the nine tanzanites in this category, this is the only one whose colour is recorded as Blue-violet. The other eight are recorded simply as Blue. That record is the reason this listing carries a violet name and the others do not.

It is also the only colour evidence we have for any stone here, because the photograph on this listing is a catalogue image shared across all nine tanzanite listings – one photograph, some copies mirrored, not a picture of this stone. Several other names we were given for this category claimed violet, deep blue or purple; they were refused, because nothing recorded supports them. Ask us for photographs and a video of the actual stone.

Blue against violet, and why it matters to the price

Tanzanite is strongly pleochroic: look down different directions in the crystal and you see different colours – broadly blue one way, violet another, and a brownish tone down the third. The cutter chooses which to favour when orienting the rough.

In the international trade the pure, saturated blues command the highest prices and the more violet stones sit below them, which is why "violet-blue" is a description rather than a grade. Many buyers prefer the violet; it is softer and reads warmer against silver. What it should not do is cost you a blue stone's price.

Treatment

Rough tanzanite is usually brown. Almost all tanzanite is heated to produce the blue-violet colour, and that is standard, stable and permanent. For this stone the treatment has not been tested and there is no laboratory report.

Cleavage and care

Mohs 6 to 7, with perfect cleavage in one direction – a plane along which a single knock can split the stone regardless of hardness. Pendants and earrings are safest; a ring wants a bezel and some care. No ultrasonic cleaner, no steam, no sudden heat. Warm water, mild soap and a soft brush.

Where it comes from

Commercial tanzanite comes from one deposit on earth, in the Merelani Hills of Tanzania. That is a fact about the gem species; we hold no provenance paperwork for this stone.

Ordering

One stone, sold once. Message us on WhatsApp for photographs of the actual stone, and we deliver across Pakistan.

This particular stone

This listing is one natural tanzanite with a weight of 5.8 Carat. Its price is Rs. 13,130 — roughly Rs. 2,264 for each carat. Origin: Tanzania. Treatment: treatment not tested. Quote reference GS-000473 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 tanzanite rates 6 to 7. That is middle-of-the-road hardness: comfortable in pendants and earrings, and in rings worn with some care. Store it apart from harder stones so it does not pick up scratches, and wipe it with a damp cloth rather than scrubbing.

Whoever you buy tanzanite 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 tanzanite 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): Almost all tanzanite is heated to produce its blue-violet colour; this is standard and 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.