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[Help] Recutting a round gem


#1

I have a friend with an old fashioned filegreee mounting. The stone is
7.5mm garnet which is cracked. He gave me a 10mm round garnet and wants
me to cut the finished stone into a 7.5mm hexagon to fit the mounting.
Would it be possible to dop the pavillion, square the round stone to a
hexagon shape and then cut the table. Would this be the way to do it? any
help would be appreciated… thanks in advance Bob Goll independence, ks


#2

Hi Bob,

There are several ways this problem could be approached. The one selecte
d really depends on the faceter.

If I were recutting the stone, I’d select the cut I wanted 1st, then dop
based on the cutting sequence. However, since you’re starting with an
already cut round stone, I’d do as you mentioned. Dopr the pavilion of th
e existing stone & cut the crown of the new stone 1st. Dopping the
pavilion in a cone dop would keep the centerline of the 2 stones pretty much
inline. Long & Steele have several good hex shaped Barion cuts in their
Barions book. The depths run from 75-85% of the width.

Dave