History of Diamond Grading in Australia

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Explore DCLA’s legacy as Australia’s leading diamond authority. Learn our history, meet the founders, and discover our unmatched grading expertise.

Diamond Cut or Proportion refers to the quality of a diamond’s shape and symmetry, which directly influences its brilliance, fire, and overall aesthetic appeal
Cut

Diamond Cut or Proportion refers to the quality of a diamond’s shape and symmetry, which directly influences[…]

Key Elements of Diamond Cut Grade
Cut Grade

Diamond Cut Grade is a key factor in determining a diamond's overall beauty and value.

Culet

The diamond culet is the flat surface at the very bottom of the diamond, specifically at the[…]

Cubic Zirconia
Cubic Zirconia

Cubic Zirconia (CZ) is a synthetic gemstone that is often used as a diamond simulant.

Crown Height Percentage

The diamond crown height percentage refers to the ratio of the height of the crown (the top[…]

Crystal

An internal crystal in a diamond refers to a type of inclusion (a naturally occurring characteristic inside[…]

Crown

A diamond crown refers to a piece of jewelry, often a tiara or headpiece, that is adorned[…]

Crown Angle

The term "diamond crown angle" typically refers to the angle at which the crown of a diamond[…]

For a round brilliant cut, an ideal crown height typically falls between 12% and 16% of the total diamond depth.
Crown Height

The crown height of a diamond refers to the vertical measurement of the crown portion of the[…]

zimbabwe-diamond-mine
Conflict Diamonds

Conflict diamonds, also known as blood diamonds, are diamonds that are mined in war zones or regions[…]

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