gr37 G17-when we brought this rough material, it was classified as party color rough, but by carefully positioning the stone when cutting we at the lapidary of  Steve & Linda of the earth have managed to produce this beautiful Bi-color sapphire. it is becoming very difficult to find the right material to produce these excellent gems. the photos simply do not do justice to the reality of holding it in your hands. One end of the stone shows blue because of the optical illusion that the cut produces if you look at the photo of the stone on it's back you will see the true distribution of the colour! We have just got the stone evaluated and have found out how rare and expensive this stone is so have adjusted the price accordingly otherwise our competitors will try to put us out of business but feel free to put your own offer on it as all bids will be considered. please feel free to check gemval's credentials. photos dont do justice to this beauty.