Aquamarine registers between a 7 and an 8 on the Mohs scale. This is the unit of measurement that is used to test the ...

“Aquamarines make a practical choice for everyday wear, since as beryl gems, they rank high on the hardness scale, just behind diamonds, sapphires, and rubies.” The aquamarine color ranges ...

Part of the beryl family, aquamarine has a similar internal makeup as emeralds and morganites. They have a hardness rating of 7.5 to 8, so diamonds and sapphires would scratch them, and the stone ...