D. Dyer - Precious Gemstones Co.
Colored Stone Article
2007 The Front Row:
Dyer of Precious Gemstones Co., Eau Claire, Wisconsin, has a reputation
as a wunderkind. Almost 28, he has already won 20* AGTA Cutting Edge
awards — and is the only gem cutter to sweep the Faceting
two separate years.
His winning ZigZag™
Cut, a green Afghan tourmaline, is his first-ever Gemmy
entry. It combines flat faceting and his trademarked V* groove.
Dyer taught himself about gemstones. He was exposed to the business end
while living in Brazil with his missionary family. He recalls an
eye-opening emerald buying trip to Zambia* with his father and
partner, David. Because Zambia* has a very small cutting industry,
gems are cut elsewhere, imported back, and sold at exorbitant prices to
tourists. So the Dyers decided to buy their own rough. “We were
referred to a cutter. We went into debt. He overcharged us, and he did
a lousy [job]. My father says, ‘We’ve done lots of things in our lives.
We can do this better.’ ” The Dyers bought faceting machines and got
into the cutting business.
The tourmaline for
ZigZag™ Cut came
from a dealer friend* in exchange for cutting some rough. Dyer was
struck by the color and clarity of the green tourmaline, since so much
tourmaline has an undertone of gray or black.
one of my favorite materials because sometimes you can get a nice-sized
material,” he said; the finished stone weighs 10.36 cts. and is 23 mm
long. Dyer’s goal was “to best utilize the shape of a relatively flat
rough relative to the width.” The crown and sides were flat faceted
with an Ultra Tech machine, but “I had to do something to make it
sparkle, which is why the V* groove came into play.” The V* grooves
cut on the bottom with a variety of techniques to act like a series of
miniature culets, “almost like many little pavilions.”
traditional faceting, if you go below a certain critical angle, the
light passes right through. I managed to maintain a critical angle with
each V* groove,” said Dyer.
* is to show where small factual corrections were made to the article)
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Precious Gemstones Company