Aquamarine is a stone of courage, and has soothing energy which helps to relieve stress and calm the mind, while unblocking communication for better self-expression. It aids in perception, sharpens intellect, and clears confusion.
Size will vary based on weight.
While crystals are not a substitute for any medical treatment and are not a cure for any health condition, I have found that there is power in crystal meditation and setting intention with your crystals. Envision goal realization with your crystals and allow your crystals to attract positive energy.