As per your horoscope you are Capricorn Lagan, Moon in Libra. Venus is the Yogakarka planet as it rules your 10th house of profession and 5th house of children, investment, relationship. You can wear any stone related to Venus. If your budget is big then it can be a Diamond, White Sapphire. Else you can wear a White Opal in Silver on your right hand middle finger.
Hi Laxmi please post your question and birth details in a separate forum thread. Also, can you confirm if you can invest in shares/stock market in your children’s name when they are minor?