question about appraiser!

[sweatgem]

I am a newbie. I have learnt a lot about diamond here in this site. I am looking for a diamond for my gf''s e-ring.

But I have a question about appraiser. I am thinking about buying a diamond online (not sure which vendor yet). But if the diamnd comes with certificate, the depth, table, and angles are provided. They why do I need to take it to appraise the diamond again? Is it to make sure that they give your the right diamond and to make sure the diamond matching eveyrthing that state on the certificate?

Thanks a lot

 

[pqcollectibles]

You might want to read this thread.

It discusses reasons you should have an independent appraisal.