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CARAT learn more

Carat (ct.)

The international unit of weight, used for measuring diamonds and gemstones. 1 carat is equal to 200 milligrams, or 0.2 grams.

CUT learn more

  • Excellent
  • Very Good
  • Good
  • Fair

Diamond cut

Choose a cut grade:
  • Excellent
  • Very Good
  • Good
  • Fair
Excellent cut: Excellent cut reflects most of the light and is an exceptional quality diamond.
Very Good cut: Very good cut reflects most of the light and is considered an excellent value.
Good cut: Good cut grade reflects a good amount of light, although less than a very good cut grade.
Fair cut: Highest cut grade. Its proportions produce a beautiful balance of fire and sparkle in a diamond.

COLOR learn more

  • D
  • E
  • F
  • G
  • H
  • I
  • J

Diamond color

Choose a color grade:
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K-Z
D color: D is the highest color grade and is an extremely rare diamond since it is considered colorless.
E color: E has almost no color that can only be detected by a gemologist, and is a rare diamond.
F color: F is still considered colorless with only a very slight hint of color, and is rated a high quality diamond.
G color: G is a high quality diamond that is nearly colorless.
H color: H is a high quality diamond that is nearly colorless.
I color: I has only a slight hint of color and is rated a top value.
J color: J has slightly more color and is rated a top value.
K-Z color: These diamonds may appear yellow or slightly brown depending on the cut grade.

CLARITY learn more

  • IF
  • VVS1
  • VVS2
  • VS1
  • VS2
  • SI1
  • SI2

Diamond clarity

Choose a clarity grade:
  • F
  • IF
  • VVS1-VVS2
  • VS1-VS2
  • SI1-SI2
  • I1
Flawless: Flawless: No internal or external flaws. Extremely Rare.
Internally Flawless: Internally Flawless: no internal flaws, but some surface flaws
VVS1-VVS2: Very Very Slightly Included (two grades). Minute inclusions very difficult to detect under 10x magnification by a trained
VS1-VS2: Very Slightly Included (two grades). Minute inclusions seen only under 10x magnification.
SI1-SI2: Slightly Included (two grades). Minute inclusions more easily detected under 10x magnification.
I1: Included. Diamonds may have minor eye-visible inclusions. RIO offers a limited selection of jewelry with I1 clarity diamonds.

FLUORESCENCE

  • STRONG
  • MEDIUM
  • FAINT
  • NONE

ORIGIN

REPORT

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SYMMETRY learn more

  • Excellent
  • Very Good
  • Good
  • Fair
  • Poor

Symmetry

Choose a symmetry grade:
  • Excellent
  • Very Good
  • Good
  • Fair
Excellent Symmetry: Rranges from no symmetry features to minute symmetry features that can be viewed with difficulty face-up at 10X magnification.
Very Good Symmetry: Minor symmetry features are seen face-up at 10X magnification.
Good Symmetry: Noticeable symmetry features are seen face-up at 10X magnification. The diamond’s overall appearance may be affected when viewed with the unaided eye.
Fair Symmetry: Obvious symmetry features are seen face-up at 10X magnification. The diamond’s overall appearance is often affected when viewed with the unaided eye.

POLISH learn more

  • Excellent
  • Very Good
  • Good
  • Fair
  • Poor

Polish

Choose a polish grade:
  • Excellent
  • Very Good
  • Good
  • Fair
Excellent Polish: ranges from no polish features to a few minute polish features that can be viewed with difficulty face-up at 10X magnification.
Very Good Polish: minor polish features are seen face-up at 10X magnification.
Good Polish: noticeable polish features are seen face-up at 10X magnification. The luster of the diamond may be affected when viewed with the unaided eye.
Fair cut: obvious heavy polish features are seen face-up at 10X magnification. The luster of the diamond is affected when viewed with the unaided eye.

TABLE learn more

Table percentage

The width of the diamond's table expressed as a percentage of its average diameter. A component of the overall cut grade, this measurement is critical to a diamond's light performance.

DEPTH learn more

Depth percentage

The height of a diamond, measured from the culet to the table, divided by its average girdle diameter. One of the basic proportions that contributes to a diamond's appearance, brilliance and fire.
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Compare Shape Carat Color Clarity Cut Polish Symmetry Fluorescence Report Price Details
Compare Shape Carat Color Clarity Cut Polish Symmetry Fluorescence Report Price Details

DIAMOND INFORMATION

  • CLARITY
  • COLOR
  • CUT
  • CARAT WEIGHT
  • DEPTH
  • GIRDLE
  • MEASUREMENTS
  • POLISH
  • PRICE
  • SHAPE
  • STOCK NO
  • SYMMETRY
  • TABLE
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