4.38ct Portuguese Cushion Diamond — Exceptional Brilliance and Rare Craftsmanship

This extraordinary 4.38ct Portuguese Cut Cushion Diamond represents the intersection of advanced diamond cutting and timeless elegance. Featuring a sophisticated cushion silhouette combined with an intricate Portuguese-inspired facet arrangement, this diamond creates a captivating display of depth, movement and brilliance.

The E colour grade places this diamond within the premium colourless category, offering exceptional brightness and a beautifully icy appearance. Combined with VVS2 clarity, the diamond presents remarkable purity with inclusions that are extremely difficult to locate even under professional magnification.

Unlike conventional cushion diamonds, Portuguese-cut cushions are valued for their complex optical character. The detailed faceting creates multiple layers of reflection, producing a distinctive sparkle pattern that changes beautifully as the diamond moves.

Diamond Specifications

Why Choose a Portuguese Cut Cushion Diamond?

Portuguese cushion diamonds are created for those seeking something beyond traditional diamond cutting. Their intricate facet architecture produces a richer, more detailed visual experience compared with conventional cushion brilliant diamonds.

The cushion shape offers a romantic balance of softened corners and substantial face-up presence, while Portuguese faceting adds a unique internal pattern of reflections.

At 4.38 carats, this diamond offers exceptional visual impact, making it an ideal centre stone for a luxury bespoke engagement ring, statement ring or collector-quality jewellery piece.

Ideal Engagement Ring Designs

This Portuguese Cushion Diamond is perfectly suited to a variety of luxury settings including:

Classic Solitaire: Allows the unique faceting and impressive size of the diamond to remain the complete focus.

Hidden Halo: Adds subtle additional brilliance while preserving a refined, elegant profile.

Three-Stone Design: Creates a sophisticated composition with tapered baguettes, half moons or complementary diamonds.

Bespoke Custom Setting: Designed specifically around the proportions and personality of this rare centre stone.

Diamond Concierge & Bespoke Design

A diamond of this rarity deserves a setting designed specifically around it. Through our bespoke jewellery process, AG & CO Jewellery can create a custom engagement ring using detailed CAD design previews, personalised consultations and expert craftsmanship.

Our Diamond Concierge team can guide you through setting styles, precious metals, accent diamonds and design details to ensure this Portuguese Cushion Diamond becomes a truly unique piece.

5.28ct Portuguese Hexagon Diamond — Architectural Beauty Meets Rare Faceting

This extraordinary 5.28ct Portuguese Cut Hexagon Diamond represents the meeting point between modern geometric design and advanced diamond craftsmanship. Featuring a distinctive six-sided silhouette and intricate Portuguese-inspired faceting, this diamond creates a rare visual experience unlike traditional diamond shapes.

The F colour grade places this diamond within the premium colourless range, offering exceptional brightness and a refined icy appearance. Combined with VVS2 clarity, the diamond displays remarkable purity with inclusions that are extremely difficult to detect under professional magnification.

The Portuguese cutting style introduces additional complexity to the diamond's internal structure, creating layers of reflection, depth and movement as light travels through the stone. Rather than relying only on traditional brilliance, this speciality cut creates a more artistic and multidimensional sparkle pattern.

Diamond Specifications

Why Choose a Portuguese Cut Hexagon Diamond?

Hexagon diamonds represent one of the most distinctive geometric diamond silhouettes, offering a modern alternative to traditional round, oval and cushion shapes. Their six-sided structure creates a bold architectural presence while maintaining refined elegance.

When combined with Portuguese faceting, the hexagon shape gains additional visual complexity. The intricate facet arrangement creates a captivating pattern of reflections, giving the diamond movement and personality from every angle.

At 5.28 carats, this diamond offers exceptional presence, making it an ideal centre stone for a luxury bespoke engagement ring, statement piece or collector-inspired jewellery design.

Bespoke Engagement Ring Design Possibilities

A Portuguese Hexagon Diamond creates an opportunity for a truly individual engagement ring design. Its geometric outline works beautifully with contemporary settings while allowing endless creative possibilities.

Minimalist Solitaire: Allows the unique hexagonal silhouette and intricate faceting to remain the focus.

East-West Setting: Creates a modern horizontal design with strong architectural appeal.

Bezel Setting: Enhances the geometric outline while providing a sleek contemporary aesthetic.

Custom Three-Stone Design: Pairs beautifully with trapezoids, half moons or baguette side diamonds.

Diamond Concierge & Custom Design

A rare speciality diamond deserves a setting created specifically around its proportions and personality. Through AG & CO Jewellery's bespoke design process, this Portuguese Hexagon Diamond can be transformed into a completely unique engagement ring.

Our Diamond Concierge team can guide you through setting styles, metal choices, accent diamonds and custom CAD previews to create a finished piece designed around your vision.

3.07ct Portuguese Marquise Diamond — Elegant Length with Extraordinary Detail

This exceptional 3.07ct Portuguese Cut Marquise Diamond combines one of the most iconic elongated diamond silhouettes with a rare speciality faceting style designed to create exceptional depth, movement and visual character.

The marquise shape has long been admired for its elegant proportions, graceful pointed ends and impressive face-up presence. When combined with Portuguese-inspired faceting, the diamond develops a more intricate reflection pattern, creating a unique display of brilliance unlike conventional marquise cuts.

Featuring a refined F colour grade and VVS2 clarity, this diamond offers a beautifully colourless appearance with exceptional purity. The result is a sophisticated centre stone suited to clients seeking a rare diamond with both elegance and individuality.

Diamond Specifications

Why Choose a Portuguese Cut Marquise Diamond?

Portuguese marquise diamonds offer a rare combination of dramatic proportions and intricate craftsmanship. Their elongated silhouette creates impressive finger coverage, while the speciality faceting introduces a more detailed and artistic sparkle pattern.

Unlike traditional marquise diamonds that focus on classic brilliant-style reflections, Portuguese faceting creates additional visual layers throughout the stone, allowing light to interact with the diamond in a more complex way.

At 3.07 carats, this diamond provides an exceptional presence while maintaining an elegant and refined profile, making it ideal for clients searching for a unique luxury engagement ring centre stone.

Bespoke Marquise Engagement Ring Design

A Portuguese Marquise Diamond creates endless possibilities for custom jewellery design. Its elongated shape works beautifully across both classic and contemporary engagement ring styles.

Classic Solitaire: Highlights the unique marquise silhouette and intricate Portuguese faceting.

East-West Setting: Creates a modern horizontal design with a bold architectural aesthetic.

Hidden Halo: Adds subtle brilliance beneath the centre stone while maintaining a clean profile.

Three-Stone Design: Complements the marquise shape with tapered baguettes, half moons or accent diamonds.

Diamond Concierge & Custom Design

This Portuguese Marquise Diamond deserves a setting designed specifically around its unique proportions and personality. AG & CO Jewellery provides a personalised design journey including diamond consultation, custom CAD previews and bespoke craftsmanship.

Our Diamond Concierge team can help you select the perfect metal, setting style and design details to transform this rare speciality diamond into a one-of-a-kind engagement ring.

Portuguese Cushion Diamond — Exceptional Faceting with Timeless Elegance

This Portuguese Cut Cushion Lab-Grown Diamond represents a rare expression of modern diamond craftsmanship. Combining the soft, romantic silhouette of a cushion cut with an intricate 161-facet Portuguese-inspired pattern, this diamond creates an extraordinary display of light and movement.

Traditional cushion diamonds are admired for their graceful rounded corners and vintage-inspired appeal. The Portuguese cut elevates this classic shape through additional facet complexity, producing a richer pattern of reflections and enhanced visual depth.

Designed for those who want a diamond that feels distinctive rather than conventional, this speciality cushion cut offers the perfect balance between timeless elegance and contemporary innovation.

Diamond Specifications

Ultra-Rare 161 Facets for Maximum Sparkle

The defining feature of this Portuguese Cushion Diamond is its exceptional 161-facet structure. Compared with traditional cushion cuts that commonly feature fewer facets, this advanced design creates a more intricate pathway for light to travel through the diamond.

The result is a refined display of brilliance, fire and scintillation that changes beautifully as the diamond moves. Each angle reveals new reflections, creating a lively and captivating appearance.

For buyers searching for a lab-grown diamond with a premium visual experience, Portuguese faceting provides a rare combination of craftsmanship, innovation and luxury appeal.

IGI Certified Lab-Grown Diamond Quality

This Portuguese Cut Cushion Diamond is IGI certified, providing independent verification of its characteristics including carat weight, colour, clarity and diamond identity.

Lab-grown diamonds possess the same crystal structure, hardness and optical properties as mined diamonds. They offer a modern alternative for couples seeking exceptional beauty, responsible sourcing and outstanding value.

With certified quality and distinctive Portuguese faceting, this diamond is ideal for engagement rings, fine jewellery designs and custom creations.

A Cushion Shape with a Portuguese Twist

The cushion diamond has remained one of the most beloved engagement ring shapes due to its soft corners, romantic proportions and timeless character.

Portuguese faceting transforms this familiar silhouette into something far more distinctive. The combination creates a diamond that feels both classic and contemporary — elegant enough for a traditional engagement ring while unique enough for a modern luxury design.

Its balanced cushion outline makes it suitable for solitaire settings, halo designs, three-stone rings and statement jewellery pieces.

Designed for Bespoke Engagement Rings

A Portuguese Cut Cushion Diamond deserves a setting created around its individual character. Whether styled in platinum, white gold, yellow gold or rose gold, this diamond provides an exceptional foundation for a personalised engagement ring.

Popular design directions include:

Luxury Solitaire: Allows the intricate Portuguese faceting to remain the centre of attention.

Hidden Halo: Adds subtle brilliance while maintaining a refined silhouette.

Three-Stone Designs: Creates a sophisticated composition with complementary diamonds.

Bespoke CAD Designs: Allows every detail of the setting to be developed specifically around this unique centre stone.

Diamond Concierge & Custom Design

Our Diamond Concierge service helps you transform exceptional diamonds into personalised jewellery pieces. From selecting the perfect setting to reviewing custom CAD designs, our team guides you through every stage of the creation process.

Whether you envision a modern statement ring or a timeless engagement design, this Portuguese Cushion Diamond provides a rare foundation for a piece created exclusively for you.

Rosalie Pink Diamond Ring — Sculptural Elegance With Romantic Charm

The Rosalie engagement ring celebrates the beauty of a pink lab-grown diamond through a graceful sculptural design. Featuring a luminous round pink centre stone, this ring is framed by sweeping diamond ribbons that create movement, balance and exceptional brilliance.

The flowing bypass silhouette wraps elegantly around the centre diamond, while the pavé-set ribbons enhance the overall sparkle and create a refined luxury appearance. The contrast between the soft pink diamond and brilliant white accents creates a timeless yet contemporary expression of romance.

Designed for those who appreciate distinctive jewellery with feminine elegance, Rosalie combines modern craftsmanship with classic engagement ring symbolism to create a piece designed to be treasured for a lifetime.

Pink Round Diamond Bypass Halo Design

The round diamond is celebrated for its exceptional brilliance and timeless appeal. Paired with a pink lab-grown diamond centre, this classic shape showcases beautiful colour while maximising sparkle and light performance.

The sculptural bypass halo setting enhances the centre stone through flowing pavé details, creating a distinctive silhouette that feels elegant, romantic and effortlessly luxurious.

Product Details

Evelina Pink Diamond Ring — Soft Elegance With Timeless Brilliance

The Evelina engagement ring celebrates the beauty of colour and craftsmanship through a graceful pink oval lab-grown diamond centre stone. Designed with elegant proportions, this ring creates a refined balance between romantic softness and modern luxury.

The elongated oval silhouette enhances the natural beauty of the pink diamond, while the surrounding white diamond halo creates exceptional brilliance and a beautifully elevated presence on the hand. The subtle rose gold accent frame adds warmth, highlighting the delicate blush tones of the centre stone.

Finished with sparkling pavé diamond shoulders, Evelina is designed for those seeking a distinctive engagement ring that combines timeless elegance with contemporary sophistication.

Oval Pink Diamond Halo Design

The oval diamond is admired for its graceful proportions, flattering elongated shape and exceptional light performance. When paired with a pink lab-grown diamond, the oval cut creates a romantic and sophisticated centrepiece with a unique luxury appeal.

The halo setting enhances the visual presence of the centre stone, while the pavé diamond detailing creates a seamless flow of brilliance throughout the design.

Product Details

Liora Pink Diamond Ring — Sculptural Beauty With Modern Grace

The Liora engagement ring captures the elegance of a pink pear-cut diamond through a beautifully balanced bypass design. The flowing silhouette creates a sense of movement, allowing the centre stone to appear suspended within a refined contemporary composition.

The soft blush tones of the pink lab-grown diamond are enhanced by the surrounding pavé diamond wave detail, creating a graceful contrast between colour, brilliance and polished precious metal. The asymmetric design gives the ring a distinctive character while maintaining timeless elegance.

Designed for those who appreciate unique jewellery with artistic expression, Liora combines modern craftsmanship with romantic symbolism to create a memorable luxury engagement ring.

Pear Cut Pink Diamond Bypass Design

The pear cut diamond is celebrated for its elegant teardrop silhouette and exceptional brilliance. Its graceful proportions create a flattering appearance while showcasing the beauty and individuality of a pink diamond centre stone.

The bypass setting represents harmony and connection, with the flowing diamond-encrusted curve embracing the centre stone to create a sophisticated and contemporary statement.

Product Details