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.

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[…]

Coated Diamond or Coating

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

Cloud

A cloud in a diamond refers to a type of inclusion consisting of tiny, hazy clusters of[…]

A diamond with a relatively small table
Closed Table

A diamond with a relatively small table refers to a diamond where the table facet

Cleavage in Diamonds
Cleavage

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

Clarity enhancement in diamond
Clarity Enhancement

Clarity enhancement in diamonds refers to the process of improving the appearance of a diamond by reducing[…]

SI1: Inclusions are noticeable under 10x magnification, but not always visible to the naked eye.
Clarity

Diamond clarity refers to the presence and visibility of inclusions (internal flaws) and blemishes (external flaws) within[…]

CIBJO

CIBJO, also known as The World Jewellery Confederation, is a global organization that represents the jewellery industry.[…]

Chip

A chipped diamond refers to a diamond that has sustained a small break or loss of material[…]

Champagne Diamond

A champagne diamond is a type of fancy-coloured diamond that exhibits a warm brown hue with subtle[…]

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