Aquamarine forms in pegmatites and other rock formations when beryl-rich rocks undergo metamorphism and hydrothermal processes.
The largest aquamarine gemstone ever mined is called the "Dom Pedro" aquamarine. It was originally over 100 pounds and was cut down to a 10,363-carat masterpiece, which is the largest cut aquamarine in the world.
Aquamarines are often heat-treated to enhance their blue color and reduce greenish tones, a common and generally accepted practice.
Aquamarine is graded based on its color, clarity, cut, and carat weight. The most valued aquamarines are those with the deepest blue color and without inclusions.
Some aquamarine stones exhibit a fascinating color-changing effect, appearing blue in natural daylight and shifting to a purplish hue under artificial lighting. This phenomenon enhances the gem's allure and value among collectors.
