06 Aug '26

The cut of a stone and the way it is arranged within a design are both fundamental to how a piece looks and wears.

A.G Stone Cuts & Arrangements

The cut of a stone and the way it is arranged within a design are both fundamental to how a piece looks and wears. Stone cut determines how light moves through a gemstone, while its arrangement influences proportion, balance, and how the finished piece sits on the hand. At A.G, both are considered together to ensure each design feels balanced and considered.

This guide covers the core stone cuts and arrangements used across A.G designs.

Round Brilliant

The round brilliant is the most widely used diamond cut. It's engineered with precision to maximise light return through a symmetrical arrangement of facets, producing strong brilliance and fire. Its enduring appeal comes from its ability to perform consistently across a wide range of settings and design styles.

Oval

The oval cut is an elongated variation of the round brilliant. Its proportions create a lengthening effect on the finger while maintaining strong light performance. It's a distinctive shape that has held consistent appeal across different eras of jewellery design. Favoured for its elegant proportions and finger lengthening appearance.

Emerald

The emerald cut is a step cut defined by its clean lines, open table facets, and structured form. Rather than maximising brilliance, it highlights clarity and depth, creating a hall of mirrors effect within the stone. It suits clients drawn to understated, architectural design. Often chosen by clients drawn to clean lines and understated elegance.

Asscher

The Asscher cut is a square step cut with cropped corners and deeply layered faceting, developed in the early 20th century. It has strong Art Deco associations and is valued for its symmetry and geometric precision. Viewed from above, the facet structure creates significant visual depth, drawing the eye into the stone rather than reflecting light outward.

Radiant

The radiant cut combines the outline of an emerald cut with a brilliant faceting pattern designed to maximise light performance. The result is a stone that offers strong sparkle within a structured, geometric shape, sitting between the softness of a round and the clean lines of an emerald cut. Popular with those seeking the brilliance of a round diamond within a more geometric silhouette.

Cushion

The cushion cut has a softened square or rectangular outline with rounded corners. Its faceting blends subtle brilliance with a pillow-like silhouette. It's available in both classic antique-inspired proportions and more modern interpretations, with the two producing quite different looks.

Pear

The pear cut has a tapered point at one end and a rounded base at the other, combining the outline of a marquise and a round brilliant. Its faceting delivers strong light return with a silhouette that reads as elongated on the finger. It's worn with the point facing either toward or away from the hand, and that choice alone shifts how the stone sits and how the finger appears.

Step Cut

Step cut refers to a faceting style rather than a specific shape, most commonly seen in emerald and Asscher cuts. It uses parallel, linear facets that create depth and transparency rather than scattered light return. The emphasis is on the internal character of the stone rather than surface sparkle.

Trilogy

The trilogy arrangement features a central stone flanked by two side stones. It's one of the most established ring compositions, with the three stones traditionally representing the past, present, and future. The arrangement can be adapted across a wide range of stone shapes.

Toi et Moi

Toi et moi, meaning "you and me," is a two-stone arrangement featuring a pair of central stones set side by side. It often combines contrasting shapes, colours, or stone types to create a composition that reflects two distinct elements in a single design. It's a personal and expressive arrangement.

Cluster

Cluster arrangements bring together multiple stones to form a single cohesive design. Rather than relying on one centre stone, the composition builds visual interest and texture through placement and balance. Cluster designs allow for significant creative latitude.

East West

The east west arrangement reorients traditionally vertical stone shapes into a horizontal position along the band. This shift in orientation creates a more contemporary, low-profile silhouette while preserving the integrity of the original cut. It's often used with oval, emerald, and radiant cuts.

 

The cut of a stone and the way it is arranged within a design are both fundamental to how a piece looks and wears.

A.G Stone Cuts & Arrangements

The cut of a stone and the way it is arranged within a design are both fundamental to how a piece looks and wears. Stone cut determines how light moves through a gemstone, while its arrangement influences proportion, balance, and how the finished piece sits on the hand. At A.G, both are considered together to ensure each design feels balanced and considered.

This guide covers the core stone cuts and arrangements used across A.G designs.

Round Brilliant

The round brilliant is the most widely used diamond cut. It's engineered with precision to maximise light return through a symmetrical arrangement of facets, producing strong brilliance and fire. Its enduring appeal comes from its ability to perform consistently across a wide range of settings and design styles.

Oval

The oval cut is an elongated variation of the round brilliant. Its proportions create a lengthening effect on the finger while maintaining strong light performance. It's a distinctive shape that has held consistent appeal across different eras of jewellery design. Favoured for its elegant proportions and finger lengthening appearance.

Emerald

The emerald cut is a step cut defined by its clean lines, open table facets, and structured form. Rather than maximising brilliance, it highlights clarity and depth, creating a hall of mirrors effect within the stone. It suits clients drawn to understated, architectural design. Often chosen by clients drawn to clean lines and understated elegance.

Asscher

The Asscher cut is a square step cut with cropped corners and deeply layered faceting, developed in the early 20th century. It has strong Art Deco associations and is valued for its symmetry and geometric precision. Viewed from above, the facet structure creates significant visual depth, drawing the eye into the stone rather than reflecting light outward.

Radiant

The radiant cut combines the outline of an emerald cut with a brilliant faceting pattern designed to maximise light performance. The result is a stone that offers strong sparkle within a structured, geometric shape, sitting between the softness of a round and the clean lines of an emerald cut. Popular with those seeking the brilliance of a round diamond within a more geometric silhouette.

Cushion

The cushion cut has a softened square or rectangular outline with rounded corners. Its faceting blends subtle brilliance with a pillow-like silhouette. It's available in both classic antique-inspired proportions and more modern interpretations, with the two producing quite different looks.

Pear

The pear cut has a tapered point at one end and a rounded base at the other, combining the outline of a marquise and a round brilliant. Its faceting delivers strong light return with a silhouette that reads as elongated on the finger. It's worn with the point facing either toward or away from the hand, and that choice alone shifts how the stone sits and how the finger appears.

Step Cut

Step cut refers to a faceting style rather than a specific shape, most commonly seen in emerald and Asscher cuts. It uses parallel, linear facets that create depth and transparency rather than scattered light return. The emphasis is on the internal character of the stone rather than surface sparkle.

Trilogy

The trilogy arrangement features a central stone flanked by two side stones. It's one of the most established ring compositions, with the three stones traditionally representing the past, present, and future. The arrangement can be adapted across a wide range of stone shapes.

Toi et Moi

Toi et moi, meaning "you and me," is a two-stone arrangement featuring a pair of central stones set side by side. It often combines contrasting shapes, colours, or stone types to create a composition that reflects two distinct elements in a single design. It's a personal and expressive arrangement.

Cluster

Cluster arrangements bring together multiple stones to form a single cohesive design. Rather than relying on one centre stone, the composition builds visual interest and texture through placement and balance. Cluster designs allow for significant creative latitude.

East West

The east west arrangement reorients traditionally vertical stone shapes into a horizontal position along the band. This shift in orientation creates a more contemporary, low-profile silhouette while preserving the integrity of the original cut. It's often used with oval, emerald, and radiant cuts.