History of Diamond Grading in Australia

Blogs & News

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

Israel bourse
Diamond Bourse

A Diamond Bourse (also known as a Diamond Exchange) is a marketplace where diamonds are traded, bought,[…]

Depth

Diamond depth refers to the measurement of a diamond’s height, from the culet (bottom tip) to the[…]

Cutting for weight can be a trade-off between achieving a desired carat weight and ensuring the diamond has optimal proportions to maximise its brilliance.
Cut-for-Weight

Diamond Cut for Weight refers to the practice of adjusting a diamond's proportions to maximise its weight,[…]

Cushion Cut

The cushion cut diamond is a popular diamond shape known for its rounded edges and square or[…]

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.

Cubic Zirconia
Cubic Zirconia

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

Culet

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

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[…]

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