Aquamarine, like emerald, is from the beryl family of minerals. Beryl is by itself transparent and colourless but the presence of impurities add colours to this gem, which here is iron ions that impart the luscious pale blue tint. Dissect the word and it means ‘sea water’, that makes the perfect description of the gem. Aquamarine is also known as ‘Beruj’ in some parts.