Advice on gemstones as per birth chart

[Tittu]

Hi all learned astrologers can you please advice me which gemstones i should use to strengthen my birth chart. Also my marriage is not getting fixed so an astrologer told my parents i should were pukhraj to strengthen Jupiter which would in turn help me to get married soon. So i want to know if wearing pukhraj would be really beneficial for me in terms of marriage or it is just a myth and if yes then are there are any side effects. my birth details are as below
9th january 1988
place - pune
time - 7:00am