gemstone astrology calculator GEMSTONE FOR ONESELF We need to look at the Native Chart. We need to find out the relative Strength of planet We need to check the relative strength of Mars in the chart to find out whether gemstone would work for us? We need to look at the Lord of Kendra (1.4.7.10 ) as well as Lord of Kendra (3,5,9) Based on the relative strength of these two planetary combination we can select the appropriate Gemstone which will bring the changes in our energy chakras and there by bring the changes in our life which we are looking forward to in the future.