Frequently Asked Questions
A triangular diamond, also known as a trillion or trilliant cut diamond, is a diamond with a three-sided, triangular shape. It typically features straight or slightly curved sides and is cut with either a brilliant or step-cut facet pattern, depending on the desired appearance.
The main types of triangular cuts are Trillion (Trilliant) Cut and Shield Cut, each offering a distinct appearance and use in jewelry design:
Trillion (Trilliant) Cut is the most popular type of triangular diamond cut, featuring three equal sides. It can be cut with either straight or slightly curved edges, giving it a sharp, modern appearance. The trillion cut is often brilliant-cut, with numerous small facets to maximize sparkle and brilliance.
Shield Cut is a variation of the triangular shape, shield-cut diamonds have two straight sides and one pointed, shield-like bottom. This cut is commonly used as accent stones in settings, particularly for side stones in engagement rings. While not as common as the trillion, the shield cut provides a sleek and more elongated triangular appearance.
The cut of a triangular diamond influences its sparkle, balance, and overall aesthetic, with brilliant-cut diamonds offering more brilliance and step-cut diamonds providing a cleaner, more geometric appearance. Symmetry and proportions are crucial for maximizing the diamond's visual appeal.
The ideal length-to-width ratio for triangular diamonds, particularly trillion (trilliant) cuts, typically ranges from 1:1 to 1.05:1. This means that the diamond’s length and width are nearly equal, creating a well-proportioned and balanced triangle shape.
Triangular diamonds, particularly trillion cuts, offer several advantages compared to other fancy shapes:
- Unique, Modern Appearance: The sharp, angular shape of triangular diamonds gives them a bold, contemporary look that stands out, making them ideal for those seeking something different from traditional round or oval shapes.
- Brilliance and Sparkle: When cut with a brilliant facet pattern, triangular diamonds reflect light effectively, offering excellent brilliance and fire, similar to round diamonds but with a more geometric shape.
- Versatility: Triangular diamonds can be used as either center stones for a statement piece or accent stones, particularly when flanking larger stones in engagement rings, adding a distinctive touch to the design.
- Maximized Surface Area: Triangular diamonds often appear larger than their actual carat weight due to their broad, open shape, giving the impression of more size for the same weight compared to other cuts.
- Bold, Structured Design: The defined lines and sharp points of a triangular diamond create a striking, architectural appearance that appeals to those who prefer a structured and edgy look.
Yes, triangular diamonds can be cut to minimize inclusions, especially with brilliant-cut facets like trillion or trilliant cuts, which scatter light effectively and help mask minor imperfections.
Skilled diamond cutters can strategically place inclusions in less visible areas, such as near the points, where they may be hidden by prongs or the diamond's sparkle.
Adjusting the depth of the cut can also reduce the visibility of inclusions, but it’s important to choose a diamond with a suitable clarity grade to ensure inclusions don’t affect the stone’s overall appearance.
Yes, triangular diamonds are more prone to chipping or damage, particularly at their sharp points and edges. The pointed corners of a triangular diamond, especially in trillion or trilliant cuts, are vulnerable to impact, making them more susceptible to chipping compared to round or oval diamonds, which have smoother, curved edges.
To reduce the risk of damage, triangular diamonds should be set in a protective setting, such as prongs that securely cover the points or a bezel setting that surrounds the edges. Regular care and maintenance, including avoiding hard impacts, are also essential to preserving the diamond's integrity.
The setting style influences the amount of light the diamond receives, how its points are protected, and whether its sharp angles are highlighted or softened. Choosing the right setting maximizes the triangular diamond’s brilliance and enhances its distinctive geometric appearance.
- Prong Setting: A prong setting, especially with three prongs, is commonly used for triangular diamonds. This setting secures the sharp corners of the stone while allowing maximum light to pass through, enhancing the diamond's brilliance and sparkle. It highlights the diamond’s angular, geometric shape while keeping it well-protected.
- Bezel Setting: A bezel setting surrounds the triangular diamond with a metal rim, offering the best protection for its vulnerable points. While this setting provides excellent security, it can slightly reduce the diamond’s brilliance by limiting the light that enters the stone. However, the bezel can create a sleek, modern look, adding to the diamond's sharp, clean lines.
- Halo Setting: A halo setting surrounds the triangular diamond with smaller diamonds, making the center stone appear larger and adding extra sparkle. This style enhances the overall brilliance and can soften the sharp angles of the diamond, creating a more balanced, glamorous appearance.
- Side Stones or Accents: When triangular diamonds are used as side stones, they often flank a larger center stone, contributing to an overall symmetrical and balanced design. Their angular shape can complement round or oval center stones, adding contrast and enhancing the overall appeal of the piece.
Triangular diamonds, particularly trillion or trilliant cuts, are generally not more expensive than other diamond shapes like round or princess cuts, but their pricing does depend on factors like cut quality, carat weight, and setting.