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.

Name for the basic outline of a polished diamond
Shape

In the context of diamonds, shape refers to the basic outline or form of a polished diamond,[…]

Rough Diamond

A rough diamond is a diamond in its natural state, exactly as it is found deep within[…]

Round Brilliant Cut Diamond cut or shaped into a circular outline or circumference
Round Brilliant Cut

The Round Brilliant Cut is by far the most popular and widely recognised diamond cut, known for[…]

Intensity and purity of colour in a diamond
Saturation

Saturation refers to the intensity and purity of colour within a diamond. It is a key factor[…]

The radiant cut is a diamond shape that combines the sparkle of a brilliant cut with the elegance of a square or rectangular shape.
Radiant Cut

The radiant cut is a diamond shape that combines the sparkle of a brilliant cut with the[…]

Relations between the dimensions and angles of a finished diamond.
Proportions

In the context of diamond grading, proportions refer to the relationship between the dimensions and angles of[…]

A plotting diagram
Plotting Diagram or Plot

Diagram of the approximate relative size, location, and type of internal inclusions and external blemishes of a diamond.[…]

Pinpoints Very tiny diamond crystal inclusions
Pinpoints

Pinpoints Very tiny diamond crystal inclusions Very tiny diamond crystal inclusions that are too small in size[…]

Pit Type of diamond blemish that appears as a tiny opening or indentation on the surface of a diamond.
Pit

Type of diamond blemish that appears as a tiny opening or indentation on the surface of a diamond.[…]

The pear cut, also known as the teardrop cut
Pear Cut

The pear cut, also known as the teardrop cut, is a popular and elegant diamond shape that[…]

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