Aquamarine is found in myriad hues of blue from pale-yellowish blue to deep blue. Aquamarine is very hard and the hardness ranges between 7.5 and 8 on the Mohs scale. The price of aquamarine is directly proportional to its intensity. It fosters feelings, like sympathy, trust, harmony, friendship, etc. Besides, aquamarine is synonymous with safety and security; it is believed to be an ideal gift for a loved one.