It is a silicate containing beryllium and aluminum, which is mainly sky blue to sea blue or green blue, and bright and flawless bright blue to light blue is the best.

Aquamarine is usually distributed in Brazil, Russian Federation, China and other regions, among which Brazil's aquamarine is the most famous, with obvious multicolor.

Sapphire, like garnet, tourmaline and emerald, belongs to colored gems. It is a silicate containing beryllium and aluminum. Its color is generally sky blue to sea blue or blue, which is known as green, and is mainly colored by trace ferrous ions.

Aquamarine belongs to beryl family and hexagonal crystal system, with bright and flawless width and rich brilliant blue to light blue as the best. Most aquamarine is transparent, and a few aquamarine are transparent to translucent.

Selection method of aquamarine:

1, look at the color

Most aquamarine is light blue with a slight green tone, and its color is like the shallow sea in summer, fresh and pleasant. If you don't care about the price, the stronger the aquamarine, the better.

2. Look at transparency

Cleanliness has always been an important factor related to the quality of gems, because only high-purity gems can make bright jewels this year. In terms of crystal, the more transparent sapphire is, the better its color is.

Step 3 look at the weight

The color of aquamarine is not very strong, so if the volume is too small, so you can't judge whether it is good or bad according to the color, then we must be right to choose the one with large particles, bright blue tone and delicate cutting, because on the other hand, it is convenient to observe the purity of the gemstone.

4, check the cutting work

Cutting union will reduce the defects of aquamarine itself, which will make aquamarine have the most fire color and show the beautiful color of aquamarine, so cutting is also a very important factor.