The Beaver herald. [volume] (Beaver, O.T. [Okla.]) 1895-1923, 1902-06-26
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That eva diamoa1e nay % subject
% changes ana sty10 b evident IRON
On sntirsly sew form Of cutting which
has Just been patented In the United
States and Europe b. one Of the larg-
est cutters and importers Of diamonds
In this country. TlIs hew form h
known ~ oe twssOth century cut
ting. and differs ma. A.erially from, and
10 an Improvement on. both the round
and cushion-shaped brilliant, in whirh
torn diamonds have been cut for many
centuries.
The present round brilliant was .
decided Improvement on the cushion
shape which preceded Il, but for the
improvement the cutter had 10 pay
considerably In the exart waste loss
from the rough stone. The new twsn-
tieth century 10 - great an improve.
ment over the brilliant - the brillisEt
was over the cushion shape. ut there
II compensating increase both In the
the diamond from which II II TO be cut.
The brilliant. which mss Deen used
for the past rs years. ~ 10 well known,
has 55 facets; the table or round.
nat top. 32 facets on the top, and the
''culet" or point has ~ facets at the
hack. The twentieth century cutting
has so facets and planes. 10 Of each.
and hss no table" or ''cutet"
One Of the defects which the invent
or found In the brilliant. as now cut, II
that the table" at the top. while re-
necting light TO some extent. does not
scintiliate. but leaves . view Of the
facets and the culet from nbove. The
larger the diamond the hrger the ia
ble." and there II . corresponding dif.
ference between the fash Of the facets
at the side and the dull reflection Of
the circle at the center.
The newly invented twentieth ceE-
tury cutting scintillates from every
point, and Increases the brilliancy Of
the stone by 100 per cent The invent
or. who has been an expert In dia-
monds for many years. has for . long
time sought to overcome the sack Ut
scintillation in the table Of the die-
mond. and after years Of experiment
has evolved the present cutting. Ia
went on the principle thct nature
makes crystals In octagon and octa.
hebron forms. and In cutting ne has
followed % much ~ psDsstb,e the
natural lines Of capitalization.
His patent In essentially on shape
formed Of two cones. base 70 base, each
cone made up Of planes and triangles.
Looked at from any direction. tine tri-
angles and planes scintiliate and lash
light at all angles. making II impossi-
bic to see within the stone. The re-
fractive ana reflective powers CT the
stones are.both increased by the new
form, the planes In most cases receiv-
! ing light In the argyle Of total reflection
I and flashing Il out with full force a?e
without loss. Other peculiar proper
Ties Of the tventieth-century cutting
that do not exist In any other torn yet
discovered are ~ that through the In
creased reflection and Tefrncti0n Of the
light the stone appetIrs To b aa least
one-third larger than II actually 10; ~
for the same reason the color 10 inten-
sided 10 that white stone looks whit
Or. yellow. yellower and = blue. bluer;
while Q third property 10 Increased In
rainbow tints. dut to the increase In
the number Of prisms at the edges Of
the stone.
Owing 70 the intsnsiacation Of color
only the most perfect diamonds, such
q river stones, can be used with this
cutting; and this. combined with the
tact thit II II impossible for . regular
cutter to cut this form without learn
ing an entirely new method. mikes the
price 10 high that Il puts them out Of
competition with commercial lines.
FOR this reason they are not handled
BY the general run Of retail jewellers.
but only BY those having q trade that
will pay we'll for exclusive products. II
n. therefore. safe 20 predict that while
the twsnusth-csn cutting will be
appreciated by the trade IN general.
and BY lovers Of Ans stones In particu-
lar. nsvsrthsless Il will not interfere
with the general trade In briiliants OF
the present form. and viii not &c seen
except on the most psrfect and special
stones that come into the mar~et-
jewelers. Circular.