Donny Basch on what you need to know when buying a diamond
THE 4-Cs FOR PERFECT DIAMOND
SELECTION
A diamond’s cut, color,
clarity and carat weight are used to determine a diamond’s rarity. Any
diamond that includes the highest ratings of these 4-Cs is considered
more rare and more expensive. While considering these important
factors, keep in mind that the 4-Cs will not diminish in value over
time. The following information has been arranged to illustrate and
establish the priority you should place on each category when
considering what characteristics are most important when purchasing a
diamond. The first and foremost important factor to consider when
purchasing a diamond is cut. Keep in mind, while the Internet is a
great resource for information, it is impossible to evaluate the
diamond's cut for brilliance online. Just as Don Basch would never
purchase a diamond without first viewing it, neither should you.
CUT:
• Refers to the angles and proportions of a diamond.
• A master cutter can reveal the stone’s fire and beauty by using
different shapes including round brilliant, pear, oval, marquise,
emerald cut (rectangular), heart and triangle.
• Cut affects luster, brilliance, dispersion and scintillation, which
determine the diamond’s optical beauty (the way a diamond reflects and
refracts light).
Luster: The quantity and quality of light reflecting from the surfaces
of a diamond.
Brilliance: The amount of white light returned to the eye from the
diamond.
Dispersion: The amount of rainbow colors returned to the eye from the
diamond.
Scintillation: The sparkle, which is the combination of luster,
brilliance and dispersion when there is movement by the wearer or light
source.
• Ideal cut: A diamond cut to optimal proportions, with optimal polish
and symmetry, with the most weight loss to produce maximum optical
beauty. When a diamond is cut to this standard, it is considered most
valuable, with only 5% of the round brilliant diamonds on the market
cut to this standard.
• Well-cut: Diamonds that have very good optical beauty that fall just
outside of the parameters of an ideal-cut diamond. Well-cut diamonds
are priced less than ideal cuts because they are not as rare.
• Deep cut: A diamond that appears smaller than it weighs because its
weight is retained in the depth. These diamonds are sometimes called
nail heads, due to their dark, face-up appearance, and are less
valuable.
• Shallow cut: Weight is retained in the diameter, making the diamonds
appear larger than they weigh. They are sometimes called fisheyes, due
to unsightly reflections in the crown area.
• Jubilant Crown patented cut. While not part of the traditional 4-Cs,
the Jubilant Crown has been recreated from an original cut made for
Queen Victoria. This diamond has 16 additional facets that create more
fire and sparkle than a traditional round cut and no more expensive
than a well made traditional round brilliant cut. It’s so captivating,
it will leave you breathless!
COLOR:
• Refers to the degree to which a diamond is colorless.
• Although diamonds come in all colors of the rainbow, the most rare
colors include red, pink, green and blue. We are referring to natural
colors and not radiated. It is possible to create a colored diamond
through radiation. Natural colors are rarer and more expensive.
• When there is an absence of color (colorless) in diamonds, they are
brighter, rarer and therefore cost more.
• Diamonds are graded by color from the Gemological Institute of
America (GIA), which ranges from D (colorless) to Z (warmest). Warmer
colored diamonds (K-Z) are particularly desirable when set in yellow
gold. Icy winter whites (D-J) look stunning set in white gold or
platinum.
CLARITY:
• Refers to the presence of inclusions in a diamond.
• An inclusion in the middle or top of a diamond could impact the
dispersion of light, occasionally making the diamond less brilliant.
• Although inclusions may not affect the beauty to the eye, when the
diamond is well cut, they do affect the price.
• Inclusions are ranked on a scale of perfection; known as clarity,
which was established by the GIA. The clarity scale, ranging F
(flawless) to I (included), is based on the visibility of inclusions at
a magnification of 10x.
• Laser drilling to remove the inclusions can enhance a diamond’s
clarity.
• Diamonds that have feathers reaching the surface may be fracture
filled to make these feathers less visible. It is very important to
tell your jeweler if you have a clarity enhanced diamond when leaving
for repair. The enhancement can come out when applying heat for repair.
If that happens, it can be re-enhanced.
CARAT WEIGHT:
• Refers to the weight of a diamond.
• 1 Carat = .2 Gram
• Carat weight usually has the greatest impact on value, based on
rarity.
Looks are deceiving. Cuts and mounting can make a diamond appear larger
or smaller than its actual weight. By letting your Don Basch Jewelers
associate assist and explore all avenues for you, you can find the
right diamond and setting to optimize the beauty of your stone.
DIAMOND CERTIFICATES /
APPRAISALS
Diamond certificates, more accurately known as diamond grading lab
reports may be given with the purchase of any significant diamond.
Items such as diamond engagement rings, may have a lab certificate for
the center diamond only, but most definitely will receive an appraisal
for the entire value of an item which will be used for insurance
purposes. Lab reports increase the cost of the diamond a minimum of
$250 or more, depending on the size of the diamond. Lab reports are
provided and prepared by an independent, certified gemologist. These
certificates help to calculate specific characteristics of your diamond
(color, clarity and carat weight and cut depending on the shape of your
diamond). Your appraisal is prepared by your jeweler for the appraised
value of the entire item.
TELL ME MORE:
• A diamond grading report will commonly include a plotted diagram of
your diamond and its distinctiveness.
• The report will describe the diamond’s shape, exact measurements,
proportions, depth percentages, as well as the grade of polish and
symmetry.
• Comments on any imperfections will be included in the report.
• By scheduling an appointment or stopping in, a Don Basch Jewelers
associate can explain to you each portion of the certificate, while you
are visually examining your diamond.
• There are a growing number of labs creating reports. Let us advise
you on the more accurate and reliable certificates, because many are
very “liberal” in their grading.
Remember, your Don Basch Jewelers associate can
help aid you in acquiring a diamond grading report during or following
the time of your purchase!