A diamond’s symmetry refers to how evenly its facets balance with one another. Even slightly skewed symmetry robs a diamond of its ability to reflect light, which is crucial for maintaining brilliance and fire.
POLISH
When a diamond is cut and prepared for retail, the diamond cutter must carefully polish the diamond’s facets for a smooth, clear edge. Any marks left by the polishing process can detract slightly from the diamond’s brilliance.
CUT
The cut of a diamond directly influences the diamond’s ability to reflect light and create the dazzling sparkle diamonds are known for. A diamond’s cut is graded as follows: Ideal:
The rarest and most expensive diamond cut. Reflects nearly all light for a superb sparkle.
Very Good:
Reflects almost as much light as the Ideal cut but costs less.
Good:
Reflects most light and is less expensive than Very Good.
Fair:
Not as brilliant as a Good, but still of acceptable quality.
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CLARITY
A diamond’s clarity refers to any inclusions or imperfections the diamond may contain. FL-IF :
Flawless/Internally Flawless. Very rare and expensive.
VVS1-VVS2 :
Very, Very Slightly Included. Inclusions are difficult to see even under high magnification. Excellent quality.
VS1-VS2 :
Very Slightly Included. Inclusions usually not visible to naked eye. Lower prices compared to VVS1 and VVS2.
SI1-SI2 :
Slightly Included. Inclusions visible under magnification and possibly to the naked eye. Value-priced diamonds.
I1 – I3 :
Included. Not carried by Eternity Diamonds.
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CARAT
Carat refers to the weight of your diamond, not necessarily how big it will seem from a top view. See the measurements of the diamond on the detail page to find out how large the top surface, or table, will appear.
If you care more for a large carat weight and you need to stay within a budget, consider choosing a diamond with a Good cut, SI1 or SI2 clarity and I or J color.
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DEPTH
Depth percentage is calculated by dividing the height of a gem (measured from the culet to the table) by the width of the gem. A perfectly balanced depth percentage, neither too low nor too high, creates a diamond’s brilliance and fire. Any variation from the ideal depth percentage will cause a diamond to look dull and flat.
TABLE
Table percentage is calculated by dividing the width of the table by the gem’s diameter. An ideal table percentage results in a diamond with a spectacular sparkle. Too low or too high a percentage diminishes a diamond’s sparkle significantly.
FLUORESCENCE
A diamond’s fluorescence refers to its ability to emit a softly colored glow under ultraviolet light. As the amount of fluorescence increases, a diamond tends to take on a slightly hazy appearance, which is typically only visible when compared to a non-fluorescing diamond side-by-side.
COLOR
Diamonds may appear perfectly white or can contain visible yellowish or brownish color. A diamond’s color is graded as follows:
D:
Completely colorless and extremely rare.
E:
Rare. Colorless to the naked eye. Only trace amounts of color visible via gemologist’s viewing tools.
F:
Colorless to the naked eye and of high quality. Only trace amounts of color visible via gemologist’s viewing tools.
G-H:
Nearly colorless. Slight color visible when compared side-by-side to a diamond of a higher grade. Excellent value.
I-J:
Nearly colorless. Slight color visible but excellent value.
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