At 3.17 carats, this natural and untreated greyish blue Sapphire will warm your heart. Its gentle tone and sharp star 6 point star is exactly what adds value to this gemstone. When light is focused upon this cabochon, the gem instantly displays a sort of double star that is truly unmatched in beauty. Measuring 8.3 x 7.5 x 4.6 mm, it is a gemstone that diffuses light adding a soft pastel hue that will come alive beautifully when sent in gold.