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When it comes to choosing a diamond, the shape is often the first thing people notice. While cut determines brilliance, shape defines the diamond’s personality. From timeless round to bold marquise, your diamond’s shape should reflect your unique style.

The Most Popular Diamond Shapes

Round Brilliant

The classic and most popular choice. Known for unmatched sparkle and timeless appeal, it’s the go-to for those who want elegance that never goes out of style.

Oval

Sleek and modern, the oval elongates the finger while offering brilliance similar to a round diamond. Perfect for those who want something classic with a twist.

Princess

A square shape with sharp edges, the princess cut is contemporary and bold. It delivers excellent brilliance and a geometric look.

Cushion

Soft and romantic, the cushion cut has rounded corners and larger facets, giving it a vintage charm while still sparkling beautifully.

Radiant

A hybrid between emerald and round, radiant diamonds combine sharp edges with incredible fire. Great for someone who wants something glamorous and eye-catching.

Emerald

Elegant and sophisticated, emerald cuts emphasize clarity over sparkle. With long, clean lines, it’s the shape for those who appreciate understated luxury.

Marquise

Unique and dramatic, the marquise shape maximizes carat weight and makes the finger appear longer. It’s bold, striking, and perfect for someone who loves to stand out.

Pear

A mix between round and marquise, the pear (or teardrop) cut is both graceful and distinctive. It symbolizes individuality and romance.

Asscher

Similar to emerald but square in shape, asscher diamonds have an art-deco feel with endless depth and symmetry.

Heart

The ultimate symbol of love, the heart shape is romantic and rare. Perfect for someone who wants their diamond to tell a story.

How to Choose the Right Shape

  • Personality: Round for timeless elegance, princess for modern edge, cushion for romance.

  • Finger shape: Oval and marquise elongate fingers, while square cuts suit broader hands.

  • Lifestyle: Some shapes (like round and oval) are more durable and practical for daily wear.

Why SIALLURE Diamonds Shine in Every Shape

At SIALLURE, every diamond - whether round, oval, cushion, or princess—is carefully selected with color D - F and excellent cut to ensure maximum brilliance. Our lab-grown diamonds give you freedom to choose the shape you love, without compromising on quality or ethics.

A Last Sparkle 

Your diamond’s shape is more than a design choice - it’s an expression of who you are. Whether you dream of a timeless round or a bold marquise, SIALLURE will help you find the perfect shape that reflects your love story.