Razazaidi,
The following website offers you some general advice about the wearing of gemstones and Vedic Astrology, but it includes a cautionary warning that "the gems should be selected as per the horoscope needs, otherwise there can be reverse results".
http://www.vedicprediction.com/gemstones.html
Please note that I have no association or arrangement (financial or otherwise) with the above mentioned website or its owner, and I cannot therefore personally recommend or comment upon its services and fees. This link is only provided as is, for the purposes of general reference or interest.
Sorry that I cannot help you to get some answers to your questions through an actual Vedic Astrology reading, as this is outside of my area.
But I do think that if you are going to eventually be given a reading (which is admittedly looking increasingly unlikely), keeping it only to the subject of what gem you should be wearing, would in my opinion maximize your chances of success.
EoT