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.

The lesson for the diamond industry
When Good Ideas Do Not Always Solve the Problems in the Diamond Trade

The diamond industry has spent decades trying to address questions around sustainability, traceability, ethics and responsible sourcing.[…]

Diamond Manufacturing Process & Indicative Cost
Diamond polishing process from the DCLA

For a small-to-medium round brilliant, the manufacturing cost might broadly fall around: $600–$2,500+ per finished diamond, excluding the[…]

The beginning of scientific diamond proportions
The Transformation of Diamond Cut Quality Grading

From the Tolkowsky Ideal to Modern Cut Grades, Why Proportions Still Matter For more than a century,[…]

De Beers London launches Vibrations
De Beers London launches Vibrations

De Beers London presents Vibrations: a High Jewellery universe inspired by the quiet yet enduring power of[…]

Detection has always been part of DCLA's laboratory process
Diamond Detection Keeps Advancing, And DCLA Has used the Technology for Decades

The technology used to identify laboratory-grown diamonds continues to advance, with De Beers Group announcing its next-generation[…]

How can you prove the provenance of a polished diamond?
Where Did My Diamond Come From?

A diamond may have been mined in Botswana, South Africa, Canada, Australia, Angola, Namibia, Lesotho, Russia or[…]

The next phase of the lab-grown diamond market
Lab-Grown Diamonds: Is the Era of Falling Prices Coming to an End?

What was once promoted as a lower-cost alternative to natural diamonds has become dramatically cheaper as manufacturers[…]

Don't Assume a Damaged Diamond Is Worthless
Can Diamonds Be Damaged? Understanding Chips, Abrasions, Burns and Diamond Repairs

A diamond can resist being scratched while still being capable of chipping, fracturing, cleaving or breaking if[…]

The pear shape, sometimes called a teardrop cut
Pear-Shaped Diamonds Are Back, Meghan Markle and Hollywood’s Biggest Stars Put the Teardrop Cut Back in the Spotlight

The pear shape, sometimes called a teardrop cut, combines characteristics of the round brilliant and marquise cuts.[…]

Green Diamonds Require Specialist Knowledge
Fancy Colour Diamonds, From Hollywood Statement to the Ultimate Collectable

For generations, the traditional diamond engagement ring has been dominated by the classic colourless stone. But the[…]

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