Diamond Shape Guide
A diamond's shape is the first thing you notice and the most personal choice you will make. From the timeless round to the elegant emerald, here is how to find the one that is unmistakably yours.
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Where Every Diamond Begins
Shape describes a diamond's outline; cut describes how well it is faceted to return light.
Shape is the outline you see from above, round, oval, pear, and so on, while cut refers to the precision of the facets that give a diamond its sparkle. Every shape has its own character, its own way of catching the light, and its own following. There is no single best shape, only the one that feels right for you.
Diamond Shapes
Each shape carries a distinct personality. Here is the language of all ten.
Round
Maximum brilliance. The most popular and timeless shape.
Oval
Brilliant like a round, elongating the finger.
Princess
Sharp, modern square with fiery sparkle.
Cushion
Soft, pillowed corners with romantic glow.
Emerald
Long step facets, a clear hall-of-mirrors look.
Pear
A teardrop, one rounded end and one point.
Marquise
Pointed oval that maximises apparent size.
Radiant
Trimmed corners with brilliant-cut fire.
Asscher
Square step-cut with a vintage, geometric feel.
Heart
The ultimate romantic symbol, brilliant-cut.
The Three Most Loved
A closer look at the shapes our customers reach for most.
Round Brilliant
Engineered over a century to return the most light of any shape, the round brilliant is the benchmark for sparkle. Its symmetry flatters every setting and never dates, which is why it remains the most requested diamond in the world and the safest choice if you are unsure.
Oval
An oval carries nearly the fire of a round brilliant while appearing larger for its carat weight and lengthening the finger. Its soft, elegant outline has made it one of the fastest-rising choices for engagement rings in recent years.
Emerald
Rather than sparkle, the emerald cut offers clarity and understated sophistication. Its long, parallel step facets create a "hall of mirrors" of light and shadow, prized by those who love clean lines and quiet, architectural elegance.
How To Choose A Shape
A few simple questions help narrow the field to the shape that suits you.
Consider Personality
Classic and timeless, or modern and distinctive? Let the wearer's style lead the choice.
Think About The Finger
Elongated shapes like oval, pear, and marquise lengthen and slim the hand.
Brilliance Or Clarity
Brilliant cuts sparkle intensely; step cuts like emerald and Asscher reward a cleaner stone.
Match The Setting
Some shapes suit solitaires, others shine in halos or three-stone designs.
Maximise Perceived Size
Oval, marquise, and pear look larger than round stones of the same carat weight.
Trust Your Instinct
The right shape is the one you keep coming back to. There is no wrong answer.
Whether you are drawn to the timeless round or the architectural emerald, every Shinewine shape is cut from a certified lab-grown diamond and finished with the same care.
Good To Know
The round brilliant returns the most light of any shape, thanks to a facet pattern refined specifically to maximise brilliance. Oval, pear, marquise, cushion, and radiant are also brilliant cuts with plenty of fire.
Elongated shapes, oval, marquise, and pear, spread more across the top and appear larger than a round diamond of the same weight. They are a smart choice if size is a priority.
No. Round diamonds are usually the most expensive because they waste more rough during cutting. Fancy shapes like oval, cushion, and emerald often offer more visible size for the price.
Popularity shifts over time, but a well-chosen shape you love never truly dates. The round brilliant and emerald cut in particular have stayed in demand for generations.
Find The Shape That Is Yours
Explore Shinewine's collection of certified lab-grown diamond jewellery across every shape, from round brilliant to emerald.
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