Look at this Blue Sapphire that is classified as entry Level at Gemstoneuniverse.com.If you are wearing a Blue Sapphire then use this video as a reference point to check whether your Neelam is Jyotish Quality or not:

Is your Blue Sapphire beautiful?
Is it full of lustre?
Is it fully Natural?
Does it have over 90% clarity levels?
Is light passing through it and entering your body?
If answers to all of the above are yes you have Jyotish Quality. If there is No to any single question you Gem is not Jyotish Quality and will not work for

Jyotish purposes.

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