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.

Black Diamond

A black diamond is a type of diamond that is opaque or dark in colour, typically appearing[…]

Bezel Facets

Bezel facets in a diamond refer to the flat, triangular facets that are found on the crown[…]

Bearding

Bearding in a diamond refers to the small, hairline fractures or feather-like inclusions that appear along the[…]

Baguette Cut

The Baguette Cut is a distinct rectangular diamond shape, typically with step-cut faceting, although it can also[…]

Asscher Cut

The Asscher Cut is a distinctive and elegant diamond shape, known for its square shape and step-cut

Written estimate of the approximate retail replacement value of a diamond or piece of diamond jewellery
Appraisal

Diamond or Jewellery Appraisal or Valuation is a professional evaluation of a diamond or piece of jewellery[…]

artificially enhance the colour of a diamond
Annealing

Annealing diamond refers to a process in which diamonds are heated to high temperatures in a controlled[…]

Archaic Greek word from which the word ‘diamond’ is derived
Adamas

Archaic Greek word from which the word ‘diamond’ is derived. Adamas means 'indestructible'.

Abrasions can affect the polish grade of a diamond
Abrasion

Abrasion on a diamond refers to the process where the surface or facets of a diamond become[…]

An abraded facet edge in a diamond refers to the condition where the sharp edges of a diamond's facets have become worn, chipped, or dulled.
Abraded Facet Edge

An abraded facet edge in a diamond refers to the condition where the sharp edges of a[…]

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