Aquamarine Meaning, Symbolism and Where Its Blue Comes From

Almost everyone asks me whether their obsidian is real.

Almost nobody asks me anything about aquamarine. They look at the colour, they like it, and they buy it. In seven years of cutting natural stone, this is the stone I have been asked the fewest questions about.

That silence is why this article exists. There is one thing about that blue colour that almost nobody tells a buyer. It is not bad news. It is simply something you should know before you buy.

The short answer: what aquamarine means

Aquamarine is associated with calm, clarity and the sea. Its name means sea water, and it was traditionally worn as a protective stone.

It is also the birthstone for March.

That is the short version. Below I explain where each of those meanings comes from, and where documented history ends and repeated story begins.

Where the name comes from

GIA puts it plainly: "The name 'aquamarine' is derived from two Latin words: aqua, meaning 'water,' and marina, meaning 'of the sea.'"

The name describes the colour, not a property. It is the most reliable meaning this stone has.

What people believed, and what is actually documented

Care is needed here, because a great deal of what circulates online is repeated as though it were established fact.

What the sources actually say. The American Gem Society writes that "it was once believed that this gemstone would protect sailors and guarantee a safe voyage," and that "ancient Romans would carve a frog into the gem to help turn enemies into friends."

GIA is more careful, and speaks about beryl as a whole rather than aquamarine specifically: "It has been said that the mineral beryl gives the wearer protection against foes in battle or litigation." It "makes the wearer unconquerable and amiable, and also quickens the intellect."

What no source says. Neither GIA nor the American Gem Society names a specific ancient text or period for the sailor story. It is recorded as tradition, not as dated historical fact.

I point this out because the difference matters. A beautiful tradition and a documented history are not the same thing, and I would rather not present one as the other.

What it means today

In modern use, aquamarine is associated with calm, clear communication and courage.

Let me be direct about this. These are beliefs, not measured properties. I cut stone for a living. I am not a doctor and I will not tell you that this stone heals anything. If the colour calms you, that is real, and it is reason enough to wear it. I will not promise you more than that.

What aquamarine actually is

Aquamarine is not a mineral of its own. It is the blue variety of beryl, the same mineral whose green variety is emerald.

Measured properties:

That hardness figure means something in practice. Aquamarine is one of the harder materials I work with. Obsidian sits at 5 to 5.5. Malachite sits at 3.5 to 4.5. Aquamarine stands up to daily wear far better than either.

Where the blue comes from

The International Gem Society is specific: "This beautiful gem receives its coloring from trace amounts of ferrous iron."

So the blue comes from chemistry, not from treatment. But where nature stops and the furnace begins is the subject of the next section.

What most sellers will not tell you

Let me say this before I say anything else.

My aquamarine is heat treated. It comes from Brazil and it arrives at my bench already blue. I do not heat it myself. The heating happens before it reaches me.

This is not a fake stone, and it is not something unusual about my material. GIA states that "most of the aquamarine in the market was heat-treated to give it more of a pure blue."

IGS explains what actually happens: "Most aquamarines come out of the ground with a greenish tint, but this will disappear after heating to 375° C, which leaves a pure blue color."

And here is the part that matters most: "distinguishing this heating process proves impossible. Therefore, gem graders should describe any pure blue aquamarines as 'probably heat treated.'"

Nobody can establish it afterwards. Not you, not me, not a laboratory.

What this means for you:

• The colour is permanent. GIA: "Heat treatments in all of the gemstones mentioned above are considered durable and permanent under normal handling conditions."
• The stone is still natural. It is not synthetic and it is not an imitation.
• It has little effect on value, precisely because most of the market is the same.

I tell you this because you could never find it out on your own. And if someone sells you a pure blue aquamarine and assures you it is definitely untreated, they either do not know, or they are not telling you the truth.

The colour range

Aquamarine ranges from a pale greenish blue to a deeper blue. GIA describes the preferred tone as "a moderately strong dark blue to slightly greenish blue."

One practical note for shopping. IGS writes that you will "rarely see aquamarines darker than a Swiss blue topaz." When a stone looks unusually dark, that is usually the work of the cut rather than natural saturation.

So if someone offers you a very dark blue stone as aquamarine at a very low price, it is worth pausing.

How to tell aquamarine from blue topaz

These two stones look alike, and they are confused often.

The most practical difference is weight. Blue topaz is noticeably heavier than aquamarine at the same size. You can feel it in your hand.

An honest limit: that is what you can notice yourself. Certain identification is laboratory work, where refractive index and specific gravity are measured precisely.

Raw and polished

You will find both in our shop, and that is deliberate.

The difference worth knowing is shine. A raw stone is less shiny. Its surface is as it was in the ground, and it returns light differently. A cut and polished stone glows more deeply.

Neither is better than the other. My customers choose both, in roughly equal numbers.

How to care for aquamarine

There are two specific warnings here, and most articles carry neither.

The first is about inclusions. IGS warns that "inclusions within aquamarines may not react well to mechanical cleaning techniques like ultrasound or steam."

From my own bench: when I cut aquamarine I see inclusions most of the time. Fine fractures and thread-like inclusions are normal in this stone. I have had pieces that came out completely clean, but that is the exception, not the rule.

The second is about the heat treatment itself. GIA notes that "submitting gemstones to intense heat may render them slightly more brittle than usual, and care must be taken not to damage pointed faceted corners and edges."

What I would do:

• Do not use ultrasonic or steam cleaners
• Use a soft brush, warm water and mild soap
• Store it separately. Aquamarine is 7.5 to 8, but harder stones exist
• Avoid knocks on faceted corners and edges

How we work with aquamarine at Akra

Our aquamarine comes from Brazil. GIA notes that Brazil is historically one of the main sources for this stone: the largest Brazilian aquamarine on record was found in 1910 in Minas Gerais and weighed 110 kilograms.

I make every piece from scratch: the design, the cutting of the stone, and the setting in 925 sterling silver, at our workshop in Tbilisi.

Aquamarine asks for time. At 7.5 to 8 on the Mohs scale it cuts more slowly than most of the stones I work with, and the finishing and preparation for setting is a separate, harder process. It is not a stone you rush.

See the aquamarine pendant we cut and set by hand

Quick answers

Is aquamarine a precious stone?

It is beryl, the same mineral family as emerald. Its value depends on colour, clarity, size and the quality of the cut, not on the name alone.

Is aquamarine good for everyday wear?

Yes. At 7.5 to 8 on the Mohs scale it is hard enough for daily wear. Still store it separately from harder stones.

Is my aquamarine heat treated?

If it is a pure blue, most likely yes. GIA states that most of the aquamarine on the market has been heat treated, and IGS states that the process cannot be detected afterwards. It does not make the stone less natural or less valuable.

Why is some aquamarine greenish?

Because natural aquamarine often comes out of the ground with a greenish tint. A pure blue is usually the result of heating.

What month is aquamarine the birthstone for?

March.