All, Often I hear about how backwards techniques of faceting and
treatments of gemstones are in Asia. I would like to give you a few
of my observations over the last 25 or so years. First on faceting.
I am convinced that most Asian large commercial faceting companies
are no longer using jam peg machines. They are using modified
facetors based upon the Lee facetor design and Imahashi machines. I
base this upon talking with many stone dealers that travel to Asia
two or three times a year and visit directly with the companies. I
have recut thousands of stones cut in Asia and have found most are
cut on indexed machines. In my opinion you are much more liable to
find a jam pegged stone coming from Brazil or Africa than Asia. When
the CZ Cutting Industry crashed about five years ago I was offered
150 Imahashi machines from Korea that were used in the CZ Industry.
Someone in Sri Lanka ended up buying them.
As far as treatment of gemstones goes. The common perception is
that Asian Treaters are still using charcoal ovens and using
experience as their only guide for treatments. Nothing could be
further from the truth. Most of the major treaters are using state
of the art equipment and trained scientists to work on the stones.
Over the years billions of dollars has flowed into Asia gemcutting
businesses from the USA and Europe. To think that Asian gemcutting
businesses are backward is wrong. They are state of the art. Asian
gemcutting is focused differently from the gemcutting perception
European and US cutters are trying to foster. Meet point and exact
proportions are not always the goal with expensive and rare material.
Just my observations.