Is this a sapphire or Onyx? Can anyone tell me anything about the hallmark?

Question

http://www.imagehosting.com/show.php/1029211_sapp1.jpg.html

http://www.imagehosting.com/show.php/1029222_sapp5.jpg.html

http://www.imagehosting.com/show.php/1029221_sapp4.jpg.html

http://www.imagehosting.com/show.php/1029220_sapp3.jpg.html

Answer 1

Cant tell from those pictures, would need to see in the flesh

here is some sapphire info to help you decide

http://www.wightmangoldsmiths.co.uk/id34...

It could possibly be a black diamond, but as I said you cant tell from the pictures.

http://www.wightmangoldsmiths.co.uk/dia....

I hope this helps.