GR 18This sapphire is from the Umba valley Tanzania parcel that I bought many years ago. The range of colour in this parcel is awesome and to this day I'm still finding stones amongst the rough material that is worth cutting. Fortunately even though these stones are incredibly rare I can still have enough to fill my personal collection and be able to sell the rest to the world to enjoy. This stone has slight colour change properties, the tone seems to shift from yellow orange to orange yellow. I guess that doesn't make much sense but you have to see the stone in real life to understand. either way its very beautiful and I'm sure who ever gets this stone will fall in love with it.