Cut
Refers to the angles and proportion of a diamond
Refers to the angles and proportion of a diamond
Well cut diamonds can reflect light like a mirror from one facet to another and disperse
and reflect this light through the top of the stone. A well cut diamond will be symmetrically
round, proper depth and width, and have uniformity of the facets. These features will
result in a brilliant and fiery radiance! Diamonds that are cut either too deep or too
shallow can lose or leak light through the sides and bottom and will be less brilliant-and
ultimately of less value.
and reflect this light through the top of the stone. A well cut diamond will be symmetrically
round, proper depth and width, and have uniformity of the facets. These features will
result in a brilliant and fiery radiance! Diamonds that are cut either too deep or too
shallow can lose or leak light through the sides and bottom and will be less brilliant-and
ultimately of less value.
Well Cut Too Deep Too Shallow
(Most Brilliant) (Poor Brilliance) (Poor Brilliance)
(Most Brilliant) (Poor Brilliance) (Poor Brilliance)
The proportions of a round diamond that
are optimal to produce the most brilliant
light dispersion are based on work done
by Marcel Tolkowsky. In 1919, this
Russian mathematician published
Diamond Design and described the best
proportions for cutting round brilliant
diamonds.
are optimal to produce the most brilliant
light dispersion are based on work done
by Marcel Tolkowsky. In 1919, this
Russian mathematician published
Diamond Design and described the best
proportions for cutting round brilliant
diamonds.
Characteristics of a diamond cut that are important to consider when purchasing a
diamond are described in the following table. Frequently, however, some diamond cutters
will compromise on the cut of the diamond in an attempt to optimize a diamond’s weight
(carat). This can result is a larger diamond with a duller appearance. If all other things are
equals (carat, color, clarity), there can be as much as a 50% variation in the cost of a
diamond if the cut is of poor quality.
diamond are described in the following table. Frequently, however, some diamond cutters
will compromise on the cut of the diamond in an attempt to optimize a diamond’s weight
(carat). This can result is a larger diamond with a duller appearance. If all other things are
equals (carat, color, clarity), there can be as much as a 50% variation in the cost of a
diamond if the cut is of poor quality.
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Cut
Also Refers to the shape of a diamond
Round, heart, square, pear, etc. are examples of different diamond shape cuts. The most
brilliant diamonds are going to be round in shape and this relates to the symmetry and
capability of the diamond to reflect nearly all the light that enters. Non-round diamonds
“fancy shapes” have their own individual guidelines to consider for being considered well
cut.
Also Refers to the shape of a diamond
Round, heart, square, pear, etc. are examples of different diamond shape cuts. The most
brilliant diamonds are going to be round in shape and this relates to the symmetry and
capability of the diamond to reflect nearly all the light that enters. Non-round diamonds
“fancy shapes” have their own individual guidelines to consider for being considered well
cut.
Heart Oval Pear Emerald Asscher
Marquise Princess Trilliant Radiant Round
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This is a table of the above mentioned
characteristics that describe a
diamond cut that you should strive to
obtain. This is be a good reference
when assessing a round brilliant
diamond.
Be watchful, because each society
provides different criteria as to their
grading of "ideal","very good","good",
"fair","poor". In fact, the GIA no longer
provides a grade to the cut, but
provides dimensions alone. If you
need more guidance an excellent
reference is their former grading
system: click here
characteristics that describe a
diamond cut that you should strive to
obtain. This is be a good reference
when assessing a round brilliant
diamond.
Be watchful, because each society
provides different criteria as to their
grading of "ideal","very good","good",
"fair","poor". In fact, the GIA no longer
provides a grade to the cut, but
provides dimensions alone. If you
need more guidance an excellent
reference is their former grading
system: click here
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All Rights Reserved
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Diamond Buying Guide
Quality
Cut
Cut
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