Hexagon Diamonds: A Modern Guide to Cuts, Proportions, and Choosing Well As an Adelaide jeweller specialising in bespoke engagement rings, hexagon diamonds are one of the most unique and adaptable shapes we work with today. Clean geometry meets highly customisable faceting, making them equally beautiful in minimalist solitaires and detailed, heirloom-inspired settings. Unlike traditional round or oval cuts, hexagon diamonds are not defined by a single facet pattern. The six-sided outline remains constant, but the internal cutting style determines how the diamond interacts with light, whether that means sharp brilliance, architectural flashes, soft glow, or near-transparency. In our Adelaide studio, we work with brilliant, step, rose, and portrait cut hexagon diamonds for clients wanting something architectural, geometric, and unconventional. What Is a Hexagon Diamond? A hexagon diamond is defined by its six distinct sides. Beyond that, proportion is entirely flexible. Some hexagons are perfectly symmetrical, with equal side lengths and balanced geometry. Others are elongated, creating a directional silhouette that feels sharper and more linear. Some appear compact and structured, while others feel extended and dramatic. There is no single correct proportion. The decision comes down to aesthetic preference and how the stone interacts with the overall ring design. Are Hexagon Diamonds Rare? Hexagon diamonds are significantly less common than round, oval, or emerald cuts. They require greater planning from the cutter, particularly in brilliant and step cut variations where maintaining symmetry and strong light performance within a six-sided outline is technically demanding. Lower market demand also means fewer are produced, and supply reflects that. For clients seeking a centre stone that feels unique and less conventional, hexagons are an option worth considering. Symmetrical vs Elongated Hexagon Diamonds Proportion changes the entire feel of the ring. A symmetrical hexagon with a 1:1 length-to-width ratio feels compact, centred, and structured. The silhouette is balanced and slightly more geometric in presence. An elongated hexagon typically falls between a 1.3 and 1.8 length-to-width ratio. This creates a longer, more directional shape that can visually elongate the finger and introduce subtle softness to the overall outline. In our Adelaide engagement ring consultations, viewing both proportions side by side often makes the distinction immediately clear. If a particular size is not already available, we curate a selection so you can compare proportions in person before finalising your design. The Four Types of Hexagon Diamonds The outline may remain the same, but the cut style determines how the diamond behaves in light. Brilliant Cut Hexagon Diamonds Brilliant cut hexagons are faceted to maximise light return. Their internal structure uses triangular and kite-shaped facets engineered for brightness and fire. These stones are lively and dynamic. The structured six-sided outline gives them architectural clarity, while the brilliant faceting adds movement and sparkle. Brilliant cut hexagons are also more forgiving in clarity. The complex facet pattern helps disguise small inclusions, allowing greater flexibility in clarity grades while still achieving an eye-clean appearance. They are ideal for clients who want the individuality of a hexagon without sacrificing sparkle. Step Cut Hexagon Diamonds Step cut hexagons feature long, linear facets arranged in parallel tiers, similar to emerald and Asscher cuts. Instead of constant sparkle, they produce broad flashes of light and a hall-of-mirrors effect. The result is clean, crisp, and highly architectural. Clarity becomes significantly more important in step cut hexagons. Their large, open facets reveal internal characteristics more easily than brilliant cuts. For engagement ring clients selecting a step cut hexagon, aiming for VS clarity or higher is generally advisable, particularly for centre stones above one carat. Symmetry and proportion are equally critical. Any imbalance in cutting is immediately visible. Rose Cut Hexagon Diamonds Rose cut hexagons have a flat base and domed top covered in triangular facets. They emit a soft glow rather than sharp brilliance. Because they lack the deep pavilion of modern brilliant cuts, rose cut diamonds often appear larger face-up for their carat weight. You will frequently see rose cut hexagon diamonds in “salt and pepper” variations, where natural inclusions are intentionally visible and form part of the aesthetic. Rose cuts work beautifully in both contemporary minimal settings and vintage-inspired designs. Portrait Cut Hexagon Diamonds Portrait cut hexagons are extremely thin, with flat top and bottom surfaces and minimal internal faceting. These are rarely sought after and are the least visually engaging. They do not sparkle in the traditional sense. Instead, they create a clear, glass-like visual effect where light passes directly through the stone. Clarity is paramount. There is nowhere to conceal inclusions. For portrait cut hexagon engagement rings, high clarity grades are strongly recommended to maintain that uninterrupted transparency. Because of their transparency, portrait cut hexagons can also be used intentionally to frame what sits beneath them. An engraving, subtle texture, or symbolic detail beneath the stone can become visible through the diamond, creating a layered and highly personal design. These stones are uncommon and typically chosen for bespoke designs where silhouette and concept are prioritised over brilliance. Choosing a Hexagon Diamond The 4Cs (with hexagon-specific priorities) Cut Cut is the most important factor in any diamond, and this is especially true for hexagon shapes. Because the outline is geometric and structured, symmetry and facet alignment are immediately visible. Look for excellent symmetry, well-balanced proportions, and excellent polish. In step cut hexagons in particular, precision is critical. Any imbalance in cutting will be obvious. Clarity Clarity requirements vary depending on cut style. Brilliant cut hexagons are more forgiving, as complex faceting can disguise minor inclusions while still achieving an eye-clean result. Step cut hexagons demand higher clarity because open facets expose more of the diamond’s interior. For step cut hexagon engagement rings, aiming for VS clarity or higher is generally advisable, particularly for centre stones above one carat. If you are intentionally seeking a salt and pepper hexagon, you will typically be looking at I1–I3 clarity grades. Carat Carat weight is personal and budget-driven, but how a hexagon diamond is cut significantly affects how large it appears on the hand. Symmetrical hexagons tend to feel more compact. Because their proportions are evenly balanced, more of the carat weight is distributed inward rather than stretched across the finger. Elongated hexagons often appear larger for their weight. The increased length creates greater visible surface area, offering stronger finger coverage without necessarily increasing total carat weight. Rose cut and portrait cut hexagons can appear especially large face-up relative to their weight. Both styles are shallower than modern brilliant or step cuts, meaning less carat weight is concentrated in depth and more is visible from above. Ultimately, proportion and face-up spread often influence perceived size more than the carat number alone. Colour Cut style influences how colour presents in a hexagon diamond, but your preferred overall tone matters just as much. For a crisp, bright white appearance, look within the D–F colour range. For softer warmth, K–M colour grades introduce a gentle golden undertone. For a more pronounced yellow tone while still staying in the white diamond category, W–Z colour grades offer visible colour without entering fancy colour classification. Metal choice also plays a role: white gold or platinum keeps the diamond looking as white as possible, while yellow gold enhances warmth. Hexagon Diamond FAQ Are hexagon diamonds more expensive? Hexagon diamonds are not inherently more expensive than other shapes. Pricing depends on cut style, clarity, carat weight, and whether the diamond is natural or lab grown. Step cut hexagons often require higher clarity grades to maintain a clean appearance, which can increase cost. Availability can also influence pricing, as hexagon diamonds are produced in smaller quantities than traditional shapes. Are hexagon diamonds good for engagement rings? Yes. Hexagon diamonds are just as durable as any other diamond when thoughtfully set. Their structured outline works beautifully in both bezel and claw settings, and when properly protected at the corners, they are well suited to everyday wear. As an Adelaide jeweller specialising in bespoke engagement rings, we design hexagon settings that balance aesthetic clarity with structural integrity. Which hexagon cut sparkles the most? Brilliant cut hexagons offer the most sparkle due to their faceting pattern and light return. Step cut hexagons provide broader, slower flashes of light and a more architectural appearance rather than constant brilliance. Do you offer both lab grown and natural hexagon diamonds? Yes. We source both lab grown and natural hexagon diamonds. During your consultation, we will explain the differences in certification, pricing, availability, and long-term considerations so you can make an informed decision that aligns with your priorities. What is the difference between symmetrical and elongated hexagon diamonds? A symmetrical hexagon has equal side lengths and a balanced, centred presence. An elongated hexagon stretches along one axis, creating a longer silhouette that can visually lengthen the finger and introduce subtle softness to the geometry. Both proportions can work beautifully in bespoke engagement rings depending on the overall design and personal preference. Can you custom make a hexagon engagement ring in Adelaide? Yes. In our Adelaide studio, we source natural and lab grown hexagon diamonds and present multiple options side by side so you can compare brilliance, clarity, and proportion in real lighting before finalising your design. Every hexagon engagement ring we create is made to order and tailored to your chosen stone and aesthetic direction.
