Thank you for your reply.
I was assuming it is yogakarak for Taurus rasi and Libra ascendant and also it is in mooltrikona so it must be beneficial, but it seems my understanding is misplaced which I have maintained for long time. My immediate and big problem is getting job and further career, and that is why I am looking for gem therapy. How long this inaction (bad phase?) will continue (assuming Saturn Mahadasha is for 19 years).
I have given details about my stones in my opening post . I am also wearing gold chain with Lapis Lazuli (http://www.gemstonebuzz.com/lapis-lazuli) locket.
P.S.: One additional thing which made me have the belief about Saturn being good for me is that is it is in SwaRashi (Aquarius). Again, I do not know how and why this will make it beneficial, my understanding about astrology is very limited.