History of Diamond Grading in Australia

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Explore DCLA’s legacy as Australia’s leading diamond authority. Learn our history, meet the founders, and discover our unmatched grading expertise.

A natural diamond is a gemstone composed of crystallized carbon
Natural Diamond

A natural diamond is a gemstone composed of crystallized carbon that was formed deep within the Earth's[…]

Needle Inclusion in Diamonds
Needle

A needle inclusion is a type of internal characteristic found in natural diamonds. It appears as a[…]

Natural

A natural refers to a portion of the original rough diamond’s outer surface that remains unpolished on[…]

A milky diamond refers to a gemstone that exhibits a cloudy or hazy appearance
Milky Diamond

A milky diamond refers to a gemstone that exhibits a cloudy or hazy appearance, which results in[…]

The Mohs Scale of Hardness is a qualitative scale that ranks minerals based on their ability to resist scratching
Mohs Scale

The Mohs Scale of Hardness is a qualitative scale that ranks minerals based on their ability to[…]

Melee refers to small polished diamonds
Melee

Melee diamonds are small, polished diamonds that typically weigh less than 15 points (0.15 carats) each.

marquise cut is a diamond shape
Marquise Cut

The marquise cut is a diamond shape that is elongated and features two pointed ends, creating an[…]

Lower-Girdle Facets

The lower-girdle facets are crucial elements in the overall symmetry and brilliance of a diamond.

Understanding the Sparkle and Beauty
Life

Life in a diamond refers to the vivid, dynamic quality that gives the diamond its captivating brilliance,[…]

A loose diamond refers to a diamond that is not yet set in any type of jewellery
Loose Diamond

A loose diamond refers to a diamond that is not yet set in any type of jewellery.[…]

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