A natural tanzanite of 5.50 carats, about 6.04 ratti, at Rs. 10,500 – roughly Rs. 1,909 per carat. That is the lowest rate per carat of the nine stones in this category.

Before the price: what the photograph is

This needs saying first, on this listing more than any other.

The picture above is a catalogue photograph used across all nine tanzanite listings on this site. We compared the nine images directly and they are one photograph, four of them mirrored. It is not a photograph of this individual stone.

So nothing below describes how this particular stone looks, because we cannot honestly tell you that from what we have. Message us on WhatsApp and we will send photographs and a video of the actual stone before you decide. For a gem at this price that is not a courtesy, it is the minimum.

How tanzanite is actually priced

Tanzanite is priced on colour first, then size, then cut and clarity. The deep blue-violet stones with strong saturation cost many times what a pale, greyish stone of the same weight costs, and the difference is not subtle.

Weight then multiplies it. Large tanzanite is genuinely scarcer than small, so unlike an abundant stone the rate per carat tends to rise with size rather than fall.

Across the nine stones here our rate runs from Rs. 1,909 to Rs. 10,500 per carat – a spread of nearly four times in the same category. This stone sits at the bottom of that range. We are not going to tell you the dearer stones are four times better looking, because the shared photograph gives us no basis to say so. Ask us what separates them.

What is recorded for this stone

Its colour is recorded as Blue. Its shape, cut, clarity and dimensions are not recorded, and nor are they for any of the nine. There is no laboratory report, and the treatment has not been tested.

Treatment: this one is not optional knowledge

Rough tanzanite out of the ground is usually a dull brown. Almost all tanzanite is heated, at a few hundred degrees, to turn it the blue-violet the gem is known for. That is standard across the entire trade, it is stable and permanent, and it is not a defect – but you should know it is near-universal rather than imagine you are buying an untreated stone.

Cleavage: the thing that actually breaks tanzanite

Tanzanite is Mohs 6 to 7, which sounds reasonable. The number that matters more is that it has perfect cleavage in one direction – a plane along which a single knock can split it cleanly, regardless of hardness.

In practice: a pendant or earrings are the safe choice; a ring wants a protective bezel and an owner who takes it off for rough work. Never put tanzanite in an ultrasonic cleaner, and keep it away from sudden temperature changes. Warm water, mild soap and a soft brush.

Where tanzanite comes from

Commercial tanzanite is found in one place on earth – a few square kilometres of the Merelani Hills in Tanzania, which is how the gem got its name. That is a fact about the species, not a sourcing document for this parcel; we hold no provenance paperwork for it.

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 5.5 Carat. Its price is Rs. 10,500 — roughly Rs. 1,909 for each carat. Origin: Tanzania. Treatment: treatment not tested. Quote reference GS-000109 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.