Peridot
Every July we hand people rubies. Come August the mood lightens right up. Peridot is the summer stone: lime-bright, a little offbeat, and unlike almost anything else in the case. It only ever turns up green, it has genuinely turned up inside meteorites, and it lets you buy big without the price running away from you. Here’s what’s worth knowing before you fall for one.
The one-colour gem
Peridot is the gem-quality form of olivine, and it breaks one of the usual rules. Most coloured stones borrow their colour from a stray element that wandered into the crystal: a trace of chromium makes a ruby red, a little iron and titanium turns a sapphire blue.
Peridot doesn’t borrow anything. The iron is part of the mineral itself, there from the start, which is why you will never meet a peridot that isn’t green. No blue version, no pink one. Green is the whole family.
A gem from space
Peridot is one of a tiny handful of gemstones found beyond Earth. It sits inside pallasite meteorites, the striking ones with gem-green crystals suspended in iron, and the same mineral turns up in readings from Mars and the Moon. A stone set in a ring on your hand can be older than the planet under your feet.
The green that counts
Because there is only ever one colour, everything rides on the quality of that green. The one to want is a lively grass-green: medium in depth, clean, leaning only faintly to yellow, with no muddiness at all. Too pale and it looks washed out. Too dark and it drifts towards olive. And a quirk worth knowing before you shop — peridot deepens as it grows, so a small stone can read pale and yellowish while a larger one from the very same parcel glows.
Green that flatters everything
There’s a reason peridot has never really gone out of fashion. That warm, sunny green sits beautifully against yellow gold, and it wakes up a neutral wardrobe the way a fresh stem does a room.
Often mistaken for emerald
For a stone with a single colour, peridot has a long history of being taken for something else. The Egyptians mined it on Zabargad, a scorched little island in the Red Sea, for more than three thousand years, and called it the gem of the sun.
Its green was so convincing that for centuries it kept getting filed under emerald. Several of the “emeralds” in old European church treasuries have since been identified as peridot, and there’s a fair case that some of Cleopatra’s famous emeralds were peridot all along.
Where the finest are found
Zabargad set the standard, but the good material now comes from a scattered few places. Arizona’s San Carlos country supplies most of the everyday peridot you will see. The finest large crystals tend to come out of the mountains of Pakistan, up near Kashmir, while Myanmar’s Mogok valley — better known for its rubies — quietly turns out lovely peridot too. China rounds out the supply.
A stone that loves to be big
Here peridot has a genuine advantage. Its green deepens as the crystal grows, so the larger stones are often the most beautiful of all: properly saturated, quietly glowing, with real presence on the hand. Big, clean, evenly coloured peridots exist in a way they rarely do in other gems, where great size and great colour together are hard-won. So if you are drawn to a stone with scale and impact, peridot is one of the few that carries it off beautifully.
What to look for
Colour comes first, always: that clean grass-green. After that, look for a stone that’s eye-clean. Peridot’s own colour is doing the work, and clear material is common enough that there’s no need to accept visible flecks. It’s also one of the very few gems that’s almost never treated, so a lovely green is simply a lovely green with nothing done to it. Check the cut while you’re at it: a well-cut peridot throws the light straight back at you, where a poorly proportioned one shows a pale “window” through the middle where the light slips out.
One honest word on wear. Peridot is on the softer side, around 6.5 to 7 and a fair bit softer than a ruby, so it’s happiest in earrings and pendants, and in a ring it appreciates a protective setting and a gentle life. Warm soapy water and a soft cloth keep it bright. Skip the ultrasonic cleaner, harsh chemicals and sudden heat, and keep it stored away from harder stones so nothing scratches it.
The Peridot Edit
Come and see one in person
Whether it’s an August birthday, a sixteenth anniversary, or just a green you keep coming back to, we’d love to help you find the right stone — or design something around one you’ve already fallen for.
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