What is the hardness of aquamarine?

7.5 – 8
Aquamarine/Hardness (Mohs hardness scale)

How do you test aquamarine stone?

The best way to identify a real aquamarine stone is by looking at its colour. In its natural form, they have a pale blue colour, which is similar to seawater. They may have a slight green or yellow tint as well. Naturally occurring gems have excellent clarity and transparency.

Is aquamarine a soft or hard stone?

Gem and mineral hardness is measured on the Mohs scale. Aquamarine is 7.5 to 8 on the Mohs scale, so it is a durable gemstone for jewelry as long as it is treated with care to protect it against scratching and hard knocks. Aquamarine rates a 7.5 to 8 on the Mohs hardness scale.

How can you tell if aquamarine is good quality?

An aquamarine of the best quality is clear, transparent and eye-clean, which means it does not have inclusions visible to the naked eye. Some stones may carry liquid inclusions, while some have long, hollow, rod-like inclusions that are common in gems of the beryl family.

What is the density of Aquamarine?

2.68-2.74
Gemstone Density: The Definitive Guide

How do you test the hardness of a gemstone?

The hardness of a material is measured against the scale by finding the hardest material in the stone, compare to a softest material by scratching the material. For example, if some material can be scratch by apatite but not by fluorite, its hardness on the Mohs scale would fall between 4 and 5.

How can you tell a real aquamarine?

The first thing to do is take a good hard look at your stone. If you find scratches on the surface of the gem it is most likely a fake. Aquamarine is a very hard stone (Mohs 8) and therefore is quite difficult to scratch. It is much harder than glass which has a Mohs ranking of just 5.5.

How much is rough aquamarine worth?

Prospective buyers can consult an aquamarine value chart to ascertain aquamarine gem value. As a rough guide, a 1-carat aquamarine would cost approximately $675 per carat and a 2-3 carat aquamarine would be around $1,000 to $1,500 per carat.

What is the density of aquamarine?

Are there different grades of aquamarine?

Grading an Aquamarine: Color, Clarity, Carat and Cut With a range in color from pale blue to teal, the most prized hue is a true light, sea-blue. The more true the stone’s color is to a tropical or Mediterranean paradise, the more valuable it will be. Too light or too dark and the stone’s grade will drop.

What is the best grade of aquamarine?

Diamondere’s Grading System

• Natural AAAA. These are the top 10% of natural Aquamarines available. They have a signature sea blue color and are eye-clean.
• Natural AAA. These are the top 20%-30% of natural Aquamarines available.
• Natural AA. These are the top 50%-75% of natural Aquamarines available.

What is the hardness of a aquamarine?

Aquamarine Hardness Aquamarines have a hardness value of 7.5 to 8 on the Mohs scale. That means these gems have excellent resistance to scratches and abrasions. They can’t be scratched by anything with a lower hardness.

Is aquamarine a good gemstone?

Aquamarine gems are known for their blue color that ranges from the light blue of the sky to deeper blues of the ocean. It is also the birthstone for March. Real aquamarine stones typically have a good hardness and a brilliant shine. This hardness protects aquamarine gems from being scratched.

How hard is aquamarine on the Mohs scale?

Aquamarine rates a 7.5 to 8 on the Mohs hardness scale.

Can aquamarine be scratched?

They can’t be scratched by anything with a lower hardness. Since household dust only has a hardness of 7, it can’t damage aquamarines. This makes them good choices for daily wear jewelry, like engagement rings. Aquamarine’s relatively high hardness also means it can retain a good polish for a long time.