Gems & Gifts

March Birthstone: Aquamarine Meaning, History & Jewelry Guide

By DreamExplained · Updated October 15, 2026 · 6 min read

A faceted aqua-blue aquamarine gemstone glowing under a starry night sky

Quick answer: Aquamarine, March's birthstone, is the sea-blue beryl of sailors, calm, and courageous truth-telling — a gem the Romans named for seawater and seafarers carried as protection for 2,000 years.

March's birthstone is aquamarine — a name that is a promise, from the Latin aqua marina, "seawater." Hold a fine aquamarine up to the light and the name explains itself: the stone holds the color of the sea on a calm morning, pale blue shot through with green, as if a wave were frozen mid-break. It is a variety of the mineral beryl — the same family as emerald — tinted by trace amounts of iron, and it has been pulling at the human imagination for millennia, precisely because it looks like water you can wear.

Few birthstones come with a better origin story. The ancient Romans believed aquamarine had been washed up from the treasure chests of mermaids, which is exactly the kind of myth a stone this watery deserves. Sailors of the ancient world carried aquamarine as a talisman against shipwreck and seasickness, believing it would calm storms — a belief so persistent that it sailed on, largely unchanged, for two thousand years. Today, aquamarine remains one of the most wearable, affordable, and beloved colored gems in jewelry — and a favorite for anyone who wants their birthstone to feel like the ocean.

Aquamarine Meaning and Symbolism

In the language of stones, aquamarine speaks of calm, courage, and clarity — the three things you want most when facing open water, or an open future. It became known as the stone of sailors: lore held that carrying aquamarine guaranteed safe passage and kept its wearer brave in rough seas. From there the symbolism widened — aquamarine came to stand for courage in speaking, honest communication, and emotional steadiness, the mental equivalent of clear water.

Modern crystal traditions associate aquamarine with the throat chakra, the center linked with truthful expression, and public speakers, singers, and writers sometimes keep a piece nearby as a gentle reminder to say what they mean. Dream interpreters occasionally read clear blue water or pale blue stones in dreams as the subconscious signaling emotional clarity or a need to voice something long unsaid — a reading that fits aquamarine's long association with honest speech. Whether you take the metaphysical view or simply love the symbolism, aquamarine's message is a soothing one: stay clear, stay calm, speak true.

A Brief History of Aquamarine

Aquamarine is one of the gem world's great survivors — admired for over two thousand years. The ancient Egyptians, Greeks, and Romans all knew the stone; Roman naturalists noted its sea-blue tint and sailors prized it as protection against the waves. Legend held that aquamarine could calm tempests — a story that must have been comforting at 2 a.m. on a creaking deck. In the Middle Ages, seers reportedly carved it into crystal balls for fortune-telling, believing its clarity revealed truths (a very on-brand use for the "clear communication" stone).

The stone's modern era began in the 1700s and 1800s, when Brazil's mines began yielding extraordinary blue beryls in sizes other gems could only dream of — aquamarine grows in enormous crystals, and 100-carat stones are a rarity among gems only in how common they are. The legendary Santa Maria de Itabira mine in Brazil produced aquamarines of such vivid sea-blue that the phrase "Santa Maria blue" became the gem trade's benchmark for the finest color — a standard that still rules the market today. In 1935, the Brazilian government gifted First Lady Eleanor Roosevelt a spectacular 1,298-carat dark-blue aquamarine; faceted into a stunning emerald-cut gem, it now rests in the Franklin D. Roosevelt Presidential Library — proof that aquamarine can carry a president's story.

Aquamarine Varieties and Origins

Aquamarine is all about color — and the sources that deliver it:

Brazil (Santa Maria & beyond): The historic home of fine aquamarine. The depleted Santa Maria de Itabira mine set the "Santa Maria blue" standard — vivid, slightly greenish-blue, deeply saturated. Brazilian stones of all sizes remain the reference point.
Mozambique: The modern answer to Santa Maria — "Santa Maria Africana" aquamarines deliver that coveted rich blue at friendlier prices, and Mozambique is now among the world's most important sources.
Nigeria: Produces bright, clean blues in good sizes — a strong value source for vivid stones.
Pakistan & Madagascar: Yield exceptionally clear, lighter-blue material with beautiful watery tones — classic "sea" aquamarine.
Maxixe aquamarine: A rare, deep blue variety whose color fades in sunlight — a collector's curiosity, and a good reminder to keep any aquamarine out of long sun exposure.

March also has an official alternative birthstone — bloodstone, a dark green jasper flecked with red spots — for anyone who wants a March stone with a moodier character. But aquamarine, serene and luminous, remains the star.

Aquamarine in Jewelry: What to Know

Aquamarine ranks 7.5–8 on the Mohs hardness scale — durable enough for everyday rings, and one of the most forgiving gems a jeweler can set: its large, clean crystals take excellent cuts. Two practical points every buyer should know. First, color is everything: most aquamarine on the market is a pale, icy blue — the most valuable stones are vivid, medium sea-blue, evenly saturated, with just a whisper of green. In larger stones, color shows better, which is why aquamarine rewards big carat weights in pendants and cocktail rings.

Second, almost all aquamarine is heated: gentle heating deepens and evens out the blue, and it is a universally accepted, stable treatment that needs no special disclosure caution — but stones with naturally fine, unheated color command a premium. When shopping, compare aquamarine against blue topaz, its look-alike: blue topaz's deeper, sometimes electric blue is always treated (irradiation plus heat), while aquamarine's softer, waterier blue is natural. And beware "too good" prices on vivid blue stones — synthetic spinel and treated quartz are sometimes passed off as fine aquamarine, so buy from a reputable jeweler and ask about treatments.

Who Should Wear Aquamarine?

Beyond March birthdays, aquamarine is the classic stone for 19th wedding anniversaries — and a natural for sailors, swimmers, and ocean lovers, honoring its 2,000-year voyage as a mariner's talisman. Its calm, truth-telling lore makes it a favorite for teachers, speakers, and anyone whose work depends on clear communication; some keep a small aquamarine on their desk as a symbol of steady honesty. It is also the go-to blue gem for engagement rings for the color-cautious — those who want something softer and more personal than a diamond, but still pale, luminous, and unmistakably fine. Set in white gold or platinum, aquamarine's icy blue turns electric against the skin; in warm yellow gold, it picks up a sea-glass glow. If you were born in March — or are shopping for someone who was — aquamarine is a birthstone with a built-in horizon: every glance at it looks like looking at the sea.

Caring for Your Aquamarine

Aquamarine is a relatively low-maintenance gem. Clean it with warm water, mild soap, and a soft cloth — and skip the ultrasonic or steam cleaners, which most jewelers recommend avoiding for beryls. At 7.5–8 on the Mohs scale it resists everyday scratches, but like any gem it can chip on a hard knock, so remove rings for sports and heavy chores. One note its history hints at: prolonged direct sunlight can slowly fade aquamarine's color over many years (the rare Maxixe variety fades fast; ordinary aquamarine fades very slowly), so store it out of a sunny windowsill. Treated with this easy care, aquamarine's sea-blue calm is essentially forever — which is rather the point of a stone named for the sea.

From mermaid treasure chests to Roman decks to Roosevelt's library to the ring boxes of March birthdays today, aquamarine has never really left the human story. It is the color of open water, open skies, and open, honest speech — and for March babies, it is theirs by ancient tradition. That is a birthstone worth wearing.

Frequently asked questions

What is March's birthstone?

Aquamarine is the traditional and modern birthstone for March — a pale-blue variety of the mineral beryl (the same family as emerald), named from the Latin for "seawater." Its official alternative birthstone is bloodstone, a dark green jasper flecked with red.

What does aquamarine symbolize?

Aquamarine symbolizes calm, courage, and clear communication. Ancient sailors believed it protected them at sea and calmed storms; in lore it became the stone of sailors, honesty, and emotional clarity — a talisman for anyone speaking their truth or facing something brave.

What is the most valuable aquamarine?

Deep, vivid sea-blue aquamarines command the highest prices — stones described as "Santa Maria" blue, after Brazil's legendary Santa Maria de Itabira mine, are the benchmark. Color is everything in aquamarine: the richer and more saturated the blue, the more valuable the stone.

What is the difference between aquamarine and blue topaz?

Aquamarine is a natural blue beryl, typically pale and cool; blue topaz is almost always treated with irradiation and heating to create its deeper, sometimes electric blue. Aquamarine's color is natural, its price higher for fine colors, and its crystal structure gives it a softer, more watery glow.

How do I care for aquamarine jewelry?

Clean aquamarine with warm water, mild soap, and a soft cloth — no ultrasonic or steam cleaning. At 7.5–8 on the Mohs scale it resists scratches well, but protect it from hard knocks, and note that prolonged direct sunlight can slowly fade its color over many years.