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DCLA The home of diamond knowledge

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DCLA The home of diamond knowledge

DCLA Home of diamond knowledge, Buy or Sell Diamonds and Diamond Jewellery with help of the experts. DCLA Diamonds is the home of fine diamonds.

Buy Wholesale direct from the factory. Sell or Upgrade to a larger Diamond using our Laboratory and experts.

27/10/2026

Inclusion Size Alone Does Not Determine a Diamond's Grade: Diamond clarity is often misunderstood as a straightforward measurement of the size of an inclusion relative to the size of the diamond. While inclusion size is an important grading consideration, it is only one component of a more comprehensive gemmological assessment.

Two diamonds containing inclusions of apparently identical size and colour may receive different clarity grades because the inclusions differ in position, nature, contrast and overall visual impact. The diamond’s shape, facet arrangement and optical behaviour can also influence how readily an inclusion is observed. Read more on the DCLA news.

26/10/2026

Does Adding Diamonds to a Luxury Watch Increase Its Value or Reduce It? Read article on the DCLA news.

25/10/2026

The closure of Western Australia’s Argyle diamond mine has brought renewed attention to environmental responsibility, Indigenous rights and the long term future of one of the world’s most celebrated sources of natural pink diamonds.

22/10/2026

From a Child’s First Charm to a Lifetime of Luxury: Jewellery has a special place in our lives. It marks milestones, celebrates achievements, expresses personal style and carries memories from one generation to the next. From a child’s first silver charm to a diamond engagement ring or an exceptional high jewellery creation, the pieces we choose often reflect not only our age, but also our lifestyle, personal taste and the significance of the occasion.

21/10/2026

Do You Follow the Trend or Are You a Trendsetter?

20/10/2026

Rio Tinto Diamond Production Falls 68% After Diavik Mine Closure

19/10/2026

Spectacular $70 Million Diamond Fantasy Bra. See more on the DCLA site

18/10/2026

The nine carat Grand Condé is more than a rare pink gemstone
Nearly a century after an audacious theft, one of France’s most remarkable historic diamonds is returning to public view. The nine carat Grand Condé is more than a rare pink gemstone. Its extraordinary history highlights the enduring fascination with natural diamonds, the importance of gemmological identification and the responsibility involved in protecting irreplaceable cultural treasures. See more on the DCLA site

14/10/2026

The Hidden Characteristics That Help Reveal The Diamond Origin See the DCLA for more.

13/10/2026

The Perfect Diamond Without Compromise When choosing a diamond, quality matters. Whether you are searching for a timeless engagement ring, a bespoke piece of fine jewellery or a design that reflects your own personal style, you should never feel that you have to compromise on beauty, craftsmanship or value.

Address

Suite 901. Level 9 155 Castlereagh Street
Sydney, NSW
2000

Opening Hours

Monday	8am - 4pm
Tuesday	8am - 4pm
Wednesday	8am - 4pm
Thursday	8am - 4pm
Friday	8am - 4pm

Website

http://www.dcla.com.au/, https://www.dcla.com.au/labgrown-diamond-search/, https://www.dcla.com.au/natural-diamond-searc

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