Are you a March baby? Lucky you! Your birthstone, the aquamarine, has such a calming and tranquil blue color. Want to learn more about aquamarine? We have 15 facts about this gorgeous and fascinating ...

Pure corundum and beryl are colorless. The brilliant colors of rubies and emeralds come from the presence of very small amounts of chromium. The chromium replaces about 1% of the aluminum in the ...