During shop talk someone stated that fractures that come to the
surface cannot be filled. It was my perhaps erroneous understanding
that only surface breaking fractures could be filled.
Thinking more about it I can imagine laser drilling to get to the
offending inclusion, opening a conduit for the filler, leaving a
drill hole that presumably gets filled too, in the process. But this
is just conjecture on my part.
So…if a lasered hole can be filled, why can’t a naturally
occurring surface opening be filled? Not talking about a cavity, just
a fissure that meets the surface. Or is this someone mistaken?
And then further on, the question of durability came up but with a
twist. Suppose a filled diamond had been torched, eliminating the
filler. Customer did not know it had been filled and assumes the
jeweler switched or damaged the stone. Is there a gemological test
that could determine conclusively that the diamond had been