Songea Sapphire Gemstones from Tanzania are known for their unique
colours and even combinations of colours
These stones are said to have colours inside colours and the
main colour can change when you roll the stone making beautiful bi colour
stones, and even colour changing stones.
The colours di vary greatly from delicate yellows to sea
blue, pink and purple colour shifts to browns and greens and every colour
combination in between
Songea stones were not found till 1990s and is mostly worked
by small family operations.