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 World's Most Valuable Coloured Diamonds
Nature’s Rarest Masterpieces: The World’s Most Valuable Coloured Diamonds and the Science Behind Their Extraordinary Colours

While the classic colourless diamond remains the benchmark for brilliance and purity, some of the world’s most[…]

20.46 carat Okavango Blue Diamond
Messika Showcases Botswana’s Extraordinary Okavango Blue Diamond in One of the World’s Rarest High Jewellery Creations

French high jewellery house Messika has unveiled an exceptional necklace featuring one of the rarest natural diamonds[…]

A 27.64 carat Fancy Vivid Blue heart shaped diamond
The Heart of Eternity Diamond: The Extraordinary Blue Diamond That Could Redefine Rarity

Among the world’s most exceptional gemstones, few diamonds capture the imagination quite like the Heart of Eternity[…]

5.02 ct. fancy intense pink diamond
10 Carat Blue Diamond Expected to Achieve Over $6 Million at Sotheby’s High Jewelry Auction

A rare 10.02 carat fancy intense blue diamond is set to become the centrepiece of Sotheby’s highly[…]

A ring bearing a marquise modified brilliant-cut, 5.04-carat, fancy-vivid-blue, VVS2
Two Blue Diamonds Achieve More Than $8 Million Each at Christie’s Magnificent Jewels Auction

Rare coloured diamonds once again demonstrated their extraordinary appeal, with two exceptional blue diamonds selling for more[…]

(left) the Azure Blue and (right) 5.04-carat fancy vivid blue.
DCLA News of the Day

Two Exceptional Blue Diamonds Headline Christie’s New York Auction

“The Ocean Dream” Returns to Christie’s
Geneva Set to Dazzle as Rare Blue Diamonds Headline May Auctions

The global diamond market will turn its attention to Sotheby's and Christie's this May, as two exceptional[…]

LUCARA RECOVERS EXCEPTIONAL 36.92 CARAT BLUE DIAMOND FROM KAROWE
LUCARA RECOVERS EXCEPTIONAL 36.92 CARAT BLUE DIAMOND FROM KAROWE

Lucara Diamond Corp. has announced the recovery of a remarkable 36.92 carat blue diamond from its wholly[…]

At the very top end of the diamond market, traditional pricing frameworks cease to function. Per-carat benchmarks, standard price lists, and even established scarcity models lose relevance when value is driven not by comparables, but by the willingness of elite buyers to secure assets of extreme rarity.
For the World’s Most Exceptional Diamonds, Price Lists Simply Don’t Apply

A new Natural Diamond Council report reveals why record-breaking diamonds operate in a market beyond conventional valuation

The Farnese Blue
The Farnese Blue Diamond: Three Centuries Through Europe’s Royal Courts

The Farnese Blue occupies a rare position among historic natural diamonds. It is not merely a gemstone[…]

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