Agung Jaya Jewellery

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Diamond Education


CARAT

Carat is a measure for the weight of a diamond, though most think of a carat in terms of size. The word "carat" comes from the "carob" seed, the original unit of measure for diamond traders. Today, a carat is equal to exactly 0.2 grams (about the weight of a paper clip). Carat weight is unrelated to the similar sounding karat, which refers to gold's purity. The greater the carat in a diamond the diamond price will be higher.

CLARITY

Clarity refers to the degree to which these imperfections are present. Diamonds which contain any or more inclusions or blemishes have less brilliance because the flaws interfere with the path of light through the diamond.

GRADE
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DESCRIPTIONS

FL-IF
clarity-internally-flawless

INTERNALLY FLAWLESS

VVS 1 | VVS 2
clarity-very-very-slight-inclusion

VERY VERY SLIGHT INCLUSION

VS 1 | VS 2
clarity-very-slight-inclusion

VERY SLIGHT INCLUSION

S 1 | S 2
clarity-slight-inclusion

SLIGHT INCLUSION

I 1 | I 2 | I 3
clarity-imperfect

IMPERFECT

CUT

Well Cut

SUPERIOR BRILLIANCE

Shallow Cut

POOR BRILLIANCE

Deep Cut

POOR BRILLIANCE

Cut grade is one of the the most important factor in determining the overall appearance of a diamond, because a poorly cut diamond will seem dull even with excellent clarity and color.

For superior brilliance, choose a diamond with a Cut grade of Very Good or Excellent for round diamonds, and Good or better in fancy shape diamonds. When choosing a diamond in this range, make sure its Symmetry and Polish are Very Good or Excellent, so that the impact of the above average Cut is not obscured.

CLARITY

Diamonds come in a variety of colors, some of them highly prized (pinks, blues, even yellow). However in a white diamond, the presence of a yellow tint will lower the price of a diamond. The less body color in a white diamond, the more true color it will reflect, and thus the greater its value.

  • D
  • E
  • F

COLORLESS

  • G
  • H
  • I
  • J

NEAR COLORLESS

  • K
  • L
  • M

FAINT YELLOW

  • N
  • O
  • P
  • Q
  • R

VERY LIGHT YELLOW

  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

LIGHT YELLOW

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