Upper-Girdle Facet

An Upper-Girdle Facet refers to a triangle-shaped facet that is positioned along the girdle of a diamond, specifically on the crown portion.

Wavy Girdle

Wavy Girdle Girdle that is uneven in thickness and/or does not follow a straight plane around a diamond

A wavy girdle refers to a girdle of a diamond that is uneven in thickness or does not maintain a consistent, smooth plane all the way around the diamond’s circumference.

Trilliant

Diamond cut or shaped into a triangle, sometimes with curved sides.

A Trilliant cut, also known as a trillion cut, is a diamond shape characterised by its triangle-like outline. This cut is typically symmetrical, with three sides and sharp, pointed corners.

Twinning Line

A Twinning Line is a specific type of diamond inclusion that appears as a line or ribbon of small marks, which can include pinpoints, feathers, clouds, and crystals.

Treated Diamond

Treated Diamond Diamonds that are artificially enhanced, to improve either colour or clarity

A treated diamond refers to a diamond that has undergone artificial enhancement to improve one or more of its natural characteristics, typically either its colour or clarity.

Trigon

A Trigon is a unique feature found in some natural diamonds that is characterised by its triangular shape, often appearing as fine, concentric triangular lines or marks.

Toughness

Toughness Measure of brittleness, or resistance to fracture and breaking

Toughness refers to a diamond’s resistance to fracture or breaking when subjected to impact or stress.

Table

The table is one of the most important facets of a polished diamond, situated at the very top of the diamond, in the crown area.

Table Size

Table size refers to the measurement of the table facet of a diamond, which is the large, flat surface located on the top of the stone.