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Weight and size of gemstones may still very slightly due to difference in calibration of weighing and measuring scales.)

Aquamarine is the name used for gem-quality specimens of the mineral beryl within a color range of greenish blue to blue. The name is used regardless of a stone's tone or saturation. So, aquamarines can range from a very light, almost imperceptible color to stones with a rich vibrant color.

Irradiated Aquamarine refers to aquamarine gemstones that have undergone a treatment process involving exposure to controlled radiation. The irradiated aquamarines are subject to fade in the long run.