Aquamarine was said to calm the sea and thereby helped protecting mariners. This may be one of the reasons why our gemologist Ellen, who goes out sailing by any chance, adores the light blue colors of this stone. A lesser known fact is that aquamarine belongs to the big beryl family, where colors of all kinds appear. This is due to different chemical composition with the main mineral, beryl. At Bron, we regularly craft jewelry with its pink and light blue varieties. Green and yellow beryl are only used for special pieces, as they are rarely available in the size and quality we prefer.

Colors: light blue colors

Where to dig for it: Brazil, Madagascar, Mozambique and Zambia

Mohs hardness: 7.5-8


The Mohs hardness scale

The Mohs hardness scale describes a scale from 1 to 10, which indicates the relative hardness of a mineral. Diamond is the hardest substance in the world and is therefore rated with the highest hardness grade of 10. To further illustrate the Moh's hardness it helps to imagine that a moonstone
(hardness 6) is about as hard as the blade of a kitchen knife. A fingernail would only measure a grade of 2-2.5 on the scale.

At Bron, the hardness plays a minor role. Our overriding selection criteria are color and the ‘liveliness’ of a gemstone.