Aquamarine White Gold Jewellery Earring.

Aquamarine White Gold Jewellery Earring.

By Stone.

An aquamarine stone’s hardness can be compared to that of an emerald, which isn’t surprising because emeralds are also a variety of beryl. The Fe2+ ion is responsible for the blue color. Some aquamarine stones display a very blue color, referred to as Maxixe. This color is achieved due to the combinations of ions. When Fe2+, and Fe3+, which causes a deep yellow color, are both present in a stone, a darker blue is created.