You have Moon in Gemini Lagna Yellow Sappier is not recommended because it will activated 5th and 7th house. Although Jupiter is your Yogic planet but its retrograde in 5th house and activating 5th and 7th house. Your Sahayogi planet is Venus and again Venus activating your 12th houses so again it is also not recommended. I’d recommended White Coral for you to strengthen Mars because Mars is activating 10th 11th 6th which will support your Job, Gains and Wealth through Job. No others gemstone are recommended for you.