Photos 3 and 4 Bevel the edge of the cab
to a peak down the center, and fi nish
the shape on this wheel. Make sure the
bevel peaked edge goes directly down
the center. The closer you get to this
shape at this stage, the easier it will be
down the road. When up to the 600
wheel, bevel the bottom edge with a
45-degree angle but barely cut into the
gem. This will prevent chipping during
setting.
Continue on through all the wheels.
You will fi nd that you will not have to
spend much time on each one due to
the softness of the rough. Once you are
at the 1200 stage, spend a lot of time
smoothing. You will note that this wheel
will still cut the gem. I round all edges
very slightly here, so slightly that you
wouldn’t even notice without magnifi -
cation. If you can see too much round-
ing, you have gone too far. Back up! I
polish the back, too, as I love to cut out
designs on the back. For polishing, I
used a rough leather wheel with cerium
oxide.
Fabricate the Setting
Photo 5 Use square wire that is long
enough to fi t the entire perimeter of the
stone. I used 2mm round wire and drew
it out square on my rolling mill. You can
certainly start with 1.5mm square as
mine is 1.54 when rolled square. Fit to
each side and cut to the length of the
stone plus 3mm or so. Use hard solder
and solder only one side down onto the
20 gauge sheet. Make sure you leave
enough sheet for the design on the top.
Pickle and rinse.
Fit your stone and scribe the metal
on the other side so you will know
where to lay the other side down. We
want a snug fi t. Doing this takes a
pretty good eye but you can do it. If it
is not angled correctly, sweat it off and
resolder it down properly.
Photo 6 Now add the cap at the top.
Notice that it does not extend to each
side. I used fl at wire 5.3mm x 14 gauge.
You will need to use 14 gauge by the
height you cut your stone. This is
a wide “prong” that will be used to
snug your stone tight. Pickle, rinse,
I polish the back of the gem, too, as I love to cut out designs on the back
of the metal.
The photography
videos John
recommends in his
P.S. are:
Q“How to
Photograph Your
Jewelry with Jim
Lawson”
Q“How to
Photograph Your
Jewelry: Beyond
the Basics with Jim
Lawson”
Available at http://www.
interweavestore.com.
FIND THOSE
VIDEOS
s Y s t a s w v w
photography
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lapidary journal )( Jewelry artist