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.

Petra Diamonds
Petra Diamonds needs to raise $178 million to urgently cut debt

Mining firm Petra Diamonds said it aims to raise $178 million to help cut its debt burden

Petra Diamond mine
Petra Diamonds record output

Petra Diamonds climbed almost 8% on Monday

Diamond Producers Association
Diamond Producers Association launches India operations

ALROSA, De Beers, Dominion Diamond, Gem Diamonds, Lucara Diamond, Petra Diamonds and Rio Tinto back the Diamond[…]

Petra Diamond mine
Petra Diamonds shares drop

More trouble for diamond miner Petra Diamonds yesterday after it warned it is heading into financial[…]

Williamson Diamond Mine Tanzania
Petra Diamonds suspends operations at its Tanzania mine

The Tanzanian governments confrontational approach to miners operating in the country including Petra Diamonds, has led[…]

Tanzania confiscates diamonds
Tanzania confiscates diamonds from British mining company

The Tanzanian government has announced the seizure of diamonds worth an estimated $29.5 million after accusing British[…]

Yellow Diamond A coloured diamond with a natural yellow body colour.
Yellow Diamond

A yellow diamond is a coloured diamond characterised by its natural yellow body colour.

Rough Diamond

A rough diamond is a diamond in its natural state, exactly as it is found deep within[…]

Red Diamond A coloured diamond with a natural red body colour. Red must be the predominant colour, but it may be modified by shades of pink or purple. The colour in natural red diamonds is created by irregular crystal structure. Natural red diamonds are the most rare of all diamonds. Some red coloured diamonds with sufficient saturation fall into the valuable fancy red colour category of diamonds.
Red Diamond

A red diamond is an extremely rare and captivating coloured diamond with a natural red body colour.

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