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Forums Home » Reply To: Steely Blue Sapphire… treated or not?

Reply To: Steely Blue Sapphire… treated or not?

Profile photo of lucfil

Thank you, Dave. I though a lot about your considerations and I think you are right: the lines are probably due to polishing marks.
Might you be so kind to take a look also to this pic?
The feature on the left side of the pic seems to me like “fingerprints”. However, I read that fingerprints may be difficult to discriminate from bubbles.
What do you think about this?
Thank you for your precious advice!


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