A 3.5 carat peridot — 3.85 ratti — at Rs. 15,000, about Rs. 4,286 per carat.

The purest green here, measured

"Bright green" is a claim worth backing with a number. Green covers 99% of this stone — the highest in the collection, where the yellowest reads just 25%. It also carries the least warmth of the fifteen, meaning the least yellow pulling at the green.

That combination is what the trade means by fine peridot. The most prized colour is a pure grass or bottle green with as little yellow or brown as possible, and it comes from a particular iron-to-magnesium balance in the crystal. Stones at this end of the range are scarcer than the yellow-greens, which is why two peridots of identical weight can differ substantially in price.

Why peridot cannot be any other colour

Unlike most gems, peridot's colour is not an impurity. It is gem-quality olivine, a magnesium-iron silicate, and the iron that colours it is part of the mineral's formula rather than a trace guest. Remove the iron and you no longer have peridot. That is why colourless peridot does not exist — and why the only variation available is how far toward yellow or brown a given stone sits.

Cut

Facet share measures 6.1%, placing this in the faceted half of the collection — cut facets rather than a smooth dome, which suits a strongly coloured stone because facets return more light through the body.

Care

Peridot is 6.5 to 7 on the Mohs scale, hard enough for a ring worn regularly. Never an ultrasonic cleaner — peridot is among the stones most commonly cracked by them. No steam, no sudden heat or cold, and keep it from household acids. Warm water, mild soap and a soft brush.

Recorded as an Afghan stone. Treatment has not been tested on this piece, and we record that plainly rather than describing it as untreated. Dimensions and clarity are not recorded yet — ask us and we will measure.

This particular stone

This listing is one natural peridot, known in Urdu as Zabarjad, with a weight of 3.5 Carat. Its price is Rs. 15,000 — roughly Rs. 4,286 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference GS-00086 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 peridot rates 6.5 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 peridot 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 peridot 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): Peridot is usually 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.