Hessonite gemstone is also Known in hindi name (Gomed) and its related to planet Dregon's Head (Rahu), it is found in Africa, Sri Lanka, Austria, India, Thailand, France, Russia ect. According to Vedic astrology, Rahu dasha effecte to person for 18 years around. Hessonite gemstone is believed to have a positive effect in those who have Rahu. Hessonite Gemstone is also use to overcome serious Rahu Dasha. For more detail you can read about from Which, we are shear to you .