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’ revenues decline

Petra Diamonds Limited lost some of their lustre, sliding 5.3% to 7.65p after the diamond miner underwhelmed[…]

rio tinto
Rio Tinto Output Falls Amid Lower Grades

Lower mining grades and reduced ore availability contributed to a drop in Rio Tinto’s third-quarter diamond production,[…]

Alrosa Rough Diamonds
Alrosa Sales Decline at Slower Rate

Alrosa Sales Decline at Slower Rate

The stone resembles a traditional Russian Matryoshka doll. Image by Alrosa.
Alrosa finds Matryoshka-style stone, the first in diamond mining history

SCIENTISTS HAVE A THEORY THAT THERE WAS AN INTERNAL DIAMOND AT FIRST, AND THE EXTERNAL ONE WAS[…]

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