cutting requires experience, creativity and modern machinery.
We at John Dyer
Co. employ the latest technology to bring you
a superior gem. Many cutters overseas use a rather crude method of
They simply glue the gemstone to a stick and hold it to a grinding
Such methods cannot consistently produce beautiful gems. We use only
accurate faceting machines. We employ gem cutters who
know how to bring the best out of a piece of rough. As much as
we try to cut our gemstones without internal flaws or inclusions. This
guarantees that you will have a gemstone of which you can be proud.
How to Distinguish Between Good and Bad Gemstone Faceting by
This is a short
tutorial made by gemstone artist John Dyer explaining the difference
between good faceting and bad gem cutting. Red flags such as windowed
or fish eye gemstones, crooked girdles, scratchy poor polish, and
facets that don't meet are pointed out and explained.
This is another short
tutorial made by gemstone artist John Dyer. In it he talks about a rare
and rather spectacular variety of Iolite...Which we call "Silver Spot
Iolite" due to its silvery inclusions. As of June 1st you will be able to see some Silver Spot Iolites in our online catalog.