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Aquamarine engagement ringAquamarine engagement ring

Aquamarine Guide

Learn about aquamarine, a captivating gemstone known for its serene blue color reminiscent of the sea.

What Is Aquamarine?

Aquamarine belongs to the beryl mineral family, which also includes emerald and morganite. Aquamarine is composed of beryllium aluminum silicate and gets its color from trace amounts of iron. This gemstone is celebrated for its clarity and luster, making it a popular choice for many types of jewelry.

Silver aquamarine teardrop pendant.

Aquamarine Meaning

With a name derived from the Latin words "aqua" (water) and "marina" (sea), aquamarine symbolizes tranquility and calm. Historically, it was believed to be the treasure of mermaids and used by sailors as a talisman for good luck and protection on the water. Today, aquamarine is still associated with the qualities of the sea, such as serenity, harmony, and balance. It is also considered a stone of courage and communication.

Gold aquamarine and diamond fashion ring.

Aquamarine Color

Aquamarine's color ranges from pale blue to deep blue green, with the most sought-after stones exhibiting a clear, vibrant hue. The intensity of the color is influenced by the amount of iron present in the crystal structure. Generally, more saturated blue aquamarines are more valuable. The color is often more intense in larger stones, and heat treatment is commonly used to enhance the blue color by removing yellowish tones.

Model wearing gold aquamarine engagement ring.

Aquamarine Properties

Mohs Hardness

7.5 to 8 

Mineral

Beryl 

Refractive Index 

1.577 to 1.583 

Aquamarine Price

The price of aquamarine varies based on several factors, including color, clarity, cut, and carat weight. Deep blue stones with high clarity and excellent cuts command the highest prices. The origin of the stone can also influence its value, with Brazilian and African aquamarines being particularly prized.

Silver crescent moon diamond and aquamarine pendant.

Aquamarine Origins

Aquamarine is commonly found in Brazil, which produces some of the most sought-after stones. Other notable sources include Malawi, Zambia, Nigeria, Madagascar, and Mozambique. Each location contributes to the unique qualities and variations in color found in aquamarines from different regions.

Aquamarine Facts

  • Aquamarine is the birthstone for March and the gemstone for the 19th wedding anniversary
  • It belongs to the hexagonal crystal system and typically forms large, six-sided crystals. 
  • The largest aquamarine ever found weighed over 240 pounds and was discovered in Brazil.
White gold aquamarine engagement ring.

Aquamarine Cleaning & Care Tips

To keep your aquamarine gemstone looking its best, follow these cleaning and care tips:


  • Clean aquamarine stones with warm soapy water and a soft brush. Avoid harsh chemicals and ultrasonic cleaners, as they can damage the stone. 
  • Rinse thoroughly to remove any soap residue and pat dry with a soft cloth. 
  • Store aquamarine jewelry separately to prevent scratches from harder gemstones. 
  • Avoid prolonged exposure to heat, as it can alter the color of the stone.

Aquamarine FAQ

How can you tell if aquamarine is real?

To determine if an aquamarine is real, consider its color, clarity, and hardness. Genuine aquamarine will have a consistent blue color and a Mohs hardness of 7.5 to 8. Professional gemological testing can also verify authenticity.

How is aquamarine formed?

Aquamarine often forms in pegmatites, which are coarse-grained igneous rocks. It crystallizes from beryllium-rich magma that cools slowly, allowing large crystals to develop.

How rare is aquamarine?

While aquamarine is not as rare as other gemstones, high-quality, deeply colored stones are less common and therefore more valuable.

What is the luster of aquamarine?

Aquamarine has a vitreous (glass-like) luster, which contributes to its bright and shiny appearance.