Our tourmalines are sourced via our two trusted suppliers in Sri Lanka and Australia, and both are engaged in the complete process from mine to market. Tourmalines come in all colors of the rainbow and even in bi-color hues. Do note that this is not our full stock, so reach out to us, if you’re looking for something different than what is displayed here. Aquamarines rank a 7-7.5 out of 10 on the Mohs Scale.