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.

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[…]

DCLA uses an official master set of diamonds to compare the diamond in question and determine its exact colour grade.
Colour

Diamond Colour is one of the most important factors in determining a diamond’s quality and value. DCLA[…]

Fancy-colour-Diamonds
Coloured Diamond

A coloured diamond is a diamond that exhibits a hue other than the traditional colourless range.

Coated Diamond or Coating

A coated diamond refers to a diamond that has undergone a treatment where a thin layer of[…]

Cognac coloured diamond that is dark brown
Cognac

A Cognac diamond is a type of brown diamond that is characterized by its rich, warm brown[…]

Cold Laser Inscription

A diamond cold laser inscription is a process where a laser is used to etch a unique[…]

Cleavage in Diamonds
Cleavage

Cleavage in a diamond refers to the ability of a diamond to split or fracture along specific[…]

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