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.

Polished Girdle

Polished Girdle Describes the girdle of a diamond that has been fully polished smooth and clear around[…]

Qualitative analysis of the overall surface condition of a diamond.
Polish Grade

Qualitative analysis of the overall surface condition of a diamond. The quality of polish is determined by[…]

diamond weight
Point

In the diamond industry, a point is a unit of weight used to measure diamonds and other[…]

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.[…]

Pitted facets affect the polish grade of a diamond
Pitted Facet

A pitted facet is a diamond facet that contains multiple tiny surface pits, giving it a rough[…]

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.[…]

Pinpoints Very tiny diamond crystal inclusions
Pinpoints

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

Pink Diamond

A pink diamond is a rare and highly sought-after coloured diamond that exhibits a natural pink body

Phosphorescence in Diamonds
Phosphorescence

Phosphorescence is a rare but fascinating phenomenon observed in some diamonds, where the diamond continues to glow[…]

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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