Aquamarine: Meaning, Properties, Colors & Value

TOC

• 1. What Is Aquamarine?
• 2. Aquamarine Meaning & History
• 3. Aquamarine Properties
• 4. Aquamarine Colors, Treatment & Value
• 5. Where Aquamarine Comes From
• 6. Aquamarine Care & How to Identify
• 7. Aquamarine Meaning & Symbolism
• 8. Aquamarine FAQ
• 8-1. What is aquamarine?
• 8-2. Is aquamarine heat-treated?
• 8-3. What is the difference between aquamarine and emerald?
• 8-4. What makes aquamarine valuable?
• 9. Shop Aquamarine at KenKenGems

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Aquamarine

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What Is Aquamarine?

Aquamarine is the blue to blue-green variety of beryl, the same mineral family that gives us emerald and morganite. Its serene, sea-like color comes from traces of iron in the crystal, and its shades range from a pale, almost colorless blue through sky blue to a deeper blue-green. Because it belongs to the beryl family, it is also a hard, durable gem well suited to everyday jewelry.

The name itself comes from the Latin words for "water" (aqua) and "sea" (mare), a nod to its clear, watery blue. Aquamarine is also the modern birthstone for March, and it is prized for its clean clarity, its calm color, and its good hardness, which together make it a practical yet elegant choice for rings, pendants, and earrings.

Aquamarine Meaning & History

Aquamarine has been admired since antiquity, and it is steeped in myth. In ancient Greece and Rome it was carried by sailors as a talisman, and one legend held that it was a gift from Poseidon that contained the soul of the sea; travelers took it aboard hoping it would calm storms. Another old tale claimed the gem came from a mermaid’s treasury, so that anyone who owned it enjoyed the protection of the sea.

The stone owes its name to the Roman writer Pliny the Elder, who noted that the loveliest beryls looked like clear seawater. Later cultures valued it too: the ancient Sumerians associated it with youth and happiness, and in Rome it stood for devotion and pure love.

Aquamarine has long had royal connections. It is said to have adorned the headdress of Pope Julius II and the scepter of King Stanislaw of Poland, and Fabergé used fine beryl in pieces for royal families. Queen Elizabeth II famously received an aquamarine necklace and earrings from the people of Brazil at her coronation, later adding a matching tiara and bracelet. These are historical and traditional associations rather than statements about the stone’s powers.

Aquamarine Properties

Aquamarine is a variety of beryl, a beryllium aluminum silicate, so it shares beryl’s core physical properties. It is hard and durable – about 7.5 to 8 on the Mohs scale – and often very clean, which is one reason it faceted so beautifully. Its defining feature is color: the blue to blue-green range is caused by small amounts of iron. Some stones show pleochroism (a slight color shift when viewed from different angles), and rare specimens can display a cat’s-eye or star effect. You can learn how we grade our stones on our quality guide.

Property	Detail
Species	Blue-to-blue-green variety of beryl
Chemical formula	Be3Al2Si6O18 (beryllium aluminum silicate)
Color cause	Iron (Fe) produces the blue to blue-green
Mohs hardness	7.5–8 (hard and durable, good for everyday wear)
Specific gravity	Approximately 2.6–2.9
Crystal system	Hexagonal
Related beryls	Emerald (green) and morganite (pink)
Main sources	Brazil, Madagascar, Nigeria, Mozambique, Namibia, Pakistan, USA

Aquamarine’s good hardness makes it easy to cut into intricate shapes, but like most gems it can chip or crack if knocked hard, so it still deserves careful handling.

Aquamarine Colors, Treatment & Value

Aquamarine colors run from very pale, near-colorless blue through bright sky blue to blue-green. Purer, more saturated blues are generally the most sought after, and because the color is often light, larger stones tend to show it best. Fine aquamarine is typically very clean, so value is driven mainly by the strength and purity of the color, the clarity, the quality of the cut, and the carat size. Prices vary widely with the market; treat any figures you see, including ours, as approximate ranges rather than fixed quotes.

Treatment disclosure: most aquamarine on the market is heat-treated. Gentle heating removes yellow or green undertones and deepens the blue, and the change is permanent and stable. This treatment is standard and widely accepted, but it can be difficult to detect by eye, so a reputable seller should disclose it. Always ask whether a stone is natural or treated before you buy.

• Natural aquamarine – blue-to-blue-green beryl whose color has not been enhanced.
• Treated aquamarine – natural beryl that has been heat-treated to remove green or yellow tints and deepen the blue; this should be disclosed.
• Synthetic (lab-grown) beryl – has the same chemistry as natural aquamarine but is grown in a laboratory; it must be described as synthetic or lab-grown.
• Imitation – blue glass, blue topaz, blue spinel, or other look-alikes sold to resemble aquamarine; these are not the same material and should be labeled as imitation or simulant.

You may also see trade color names such as Santa Maria or Espírito Santo for deep, vivid blues. These are descriptive color terms, not guarantees of origin or quality – a "Santa Maria" stone need not come from that mine – so judge each gem on its own color, clarity, cut, and carat.

Where Aquamarine Comes From

Gem-quality aquamarine is mined in several parts of the world. Brazil, especially the state of Minas Gerais, has long been the largest source of fine material. Madagascar produces attractive blue stones, and Nigeria, Mozambique, Namibia, Pakistan, and the United States all contribute gems as well, with additional deposits in countries such as India and China.

Keep in mind that names like "Brazilian," "Madagascar," or "Santa Maria" aquamarine are often used as trade descriptions for a particular color rather than proof of where a stone was mined. A gem sold under one of these names may have come from somewhere else entirely. As with any colored gem, origin can influence typical color and size, but it is not a guarantee of quality on its own.

Aquamarine Care & How to Identify

Aquamarine is hard (Mohs 7.5–8) and stands up well to daily wear, but it is not indestructible. Clean it with warm water, mild soap, and a soft brush, then dry it with a soft cloth. Because heat and sudden temperature changes can affect some stones and because included stones may be fragile, it is safest to avoid steam cleaning and to be cautious with ultrasonic cleaners; when in doubt, clean by hand. Store aquamarine away from harder gems such as diamond and sapphire so it does not get scratched, and keep it out of prolonged strong sunlight.

To tell aquamarine apart from look-alikes, start with color and clarity: genuine aquamarine shows a soft, even blue-to-blue-green hue and is usually very clean, without the bubbles or swirl marks typical of glass imitations. Blue topaz and blue spinel can look similar to the eye, and distinguishing natural, treated, and lab-grown beryl reliably requires gemological testing. For an important purchase, ask the seller to state the mineral identity and any treatment in writing, and consider an independent laboratory report for higher-value stones.

Aquamarine Meaning & Symbolism

These are traditional beliefs, not medical claims. Aquamarine is not medicine and cannot diagnose, treat, cure, or prevent any illness. For any health concern, please consult a qualified healthcare professional.

In crystal lore, aquamarine is best known as a calming "stone of the sea." It is traditionally believed to be associated with tranquility, clear communication, and courage, and sailors once carried it as a protective talisman for safe travel across water. Many people today simply enjoy wearing or carrying it as a meaningful, soothing keepsake, and its watery blue makes it a popular romantic gift.

In folklore and astrology, aquamarine is often linked with the water signs – especially Pisces – as well as with Aries and Gemini, and it is the traditional birthstone for March. In chakra tradition it is usually associated with the throat center as a symbol of honest expression. All of these associations come from tradition and personal practice, not from science, and none of them describe a medical effect.

Aquamarine FAQ

What is aquamarine?

Aquamarine is the blue to blue-green variety of beryl, the same mineral family as emerald and morganite. Its color comes from traces of iron, and at 7.5 to 8 on the Mohs scale it is hard enough for everyday jewelry. It is also the birthstone for March.

Is aquamarine heat-treated?

Usually, yes. Most aquamarine on the market is heat-treated to remove yellow or green undertones and deepen the blue. This is standard, permanent, and stable, but it can be hard to detect by eye, so a reputable seller should disclose it. Always ask whether a stone is natural or treated.

What is the difference between aquamarine and emerald?

Both are varieties of beryl and share the same basic hardness. The difference is color and its cause: aquamarine is blue to blue-green from iron, while emerald is green from chromium or vanadium. Emerald is also typically more included, whereas fine aquamarine is often very clean. You can browse our emerald at https://store.kenkengems.com/collections/emerald.

What makes aquamarine valuable?

Value depends mainly on color strength and purity, clarity, cut, and carat size. Purer, more saturated blues are generally most prized, and because the color is often light, larger stones tend to show it best. Trade color names like Santa Maria describe color, not origin, and prices vary with the market and should be treated as approximate.

Shop Aquamarine at KenKenGems

Our aquamarine collection includes loose stones, beads, and strands in a range of blue and blue-green tones, chosen for clean clarity and pleasing color, along with cabochons and faceted cuts. Whether you are designing a piece of jewelry or looking for a calm, sea-blue gemstone to add to your collection, aquamarine is an easy stone to love. Explore the current selection below and find one that suits your project.

Wide variety of our Aquamarine collection