@ Anirban,
You should wear good quality Diamond of higher weight in white gold or platinum to get married soon.
Venus is the significator of marriage for all and when it is weak especially by debilitation, one should wear Venu of the highest possible quality to enhance more of Venus in the life, which for you means, wife, married life, family and finance.
I have not advised Guru (Yellow Sapphire) as it is badhak for you by ascendant and moon sign both.
Wishing you good luck, may God bless you and above all?
Cheers