Shape Guide

Shape refers to the outline of a diamond when viewed from above. Each shape has its own optical character, visual personality, and ideal use cases. CRTD Diamonds offers over 20 distinct shapes.

Brilliant Cuts

Brilliant-cut diamonds feature triangular and kite-shaped facets arranged to maximise light return. They produce the most sparkle.

• Round Brilliant: The most popular shape. 57 facets engineered for maximum brilliance. The benchmark against which all other shapes are compared
• Oval: An elongated brilliant that appears larger than a round of equal weight. Flattering on the finger
• Pear: A teardrop combining round and marquise elements. Creates visual movement and works beautifully as a pendant
• Marquise: A pointed, elongated shape with the largest face-up appearance per carat of any shape
• Heart: The ultimate romantic shape. Requires excellent symmetry and skilled cutting
• Cushion: A square or rectangle with rounded corners. Produces broad, romantic flashes of light
• Cushion Brilliant: Enhanced cushion with additional brilliant facets for more scintillation

Step Cuts

Step-cut diamonds feature long, parallel facets that produce a hall-of-mirrors effect. They favour clarity and geometric beauty over raw sparkle.

• Emerald: A rectangular step cut with trimmed corners. Sophisticated, understated shimmer
• Asscher: A square step cut with deeply trimmed corners. Art Deco heritage with a hypnotic windmill pattern
• Baguette: A narrow rectangular step cut. The classic accent stone
• Tapered Baguette: A baguette that narrows at one end. Designed to flow alongside curved centres

Modified and Specialty Cuts

• Princess: A square brilliant cut combining angular geometry with intense sparkle
• Radiant: A rectangular brilliant with trimmed corners. The best of both brilliant and step-cut worlds
• Trillion: A triangular brilliant with maximum face-up size per carat
• Hexagon: Six-sided geometry inspired by nature
• Kite: A four-sided angular shape for avant-garde designs
• Shield: A heraldic five-sided shape combining step and brilliant faceting
• Rose Cut: An antique cut with a flat base and domed faceted crown dating back to the 1500s

Accent and Specialist Cuts

• Trapezoid / Wide Trapezoid: Angular side stones for square and rectangular centres
• Half-Moon: Semi-circular side stones for round and oval centres
• Bullet: A tapered step cut for precision multi-stone designs
• Cadillac: A pentagonal side stone designed specifically for square centres
• Octagon: Eight-sided geometry between round and square

Browse our full collection of white diamonds and coloured diamonds to find your shape.