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.

Rough diamond Octahedron
Octahedron

An octahedron is one of the most sought-after crystal shapes for rough diamonds, featuring eight triangular faces[…]

Trade term for a diamond that has been badly polished or finished.
Off-Make

The term "off-make" is a trade term used to describe a diamond that has been poorly cut,[…]

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.

1 88 89 90 91 92 108

Latest Comments

No comments to show.