Moissanite Ring Shapes: A Complete Guide

Q: Do step cuts need a better stone?

Yes. Emerald and asscher cuts have open faces, so a cleaner, well-graded stone reads better in those shapes.

Choosing a moissanite shape

The shape of a moissanite decides how the ring reads on your hand. Some shapes sparkle hard. Some look larger for their weight. Some show a clean, calm face. This guide walks through each shape we set, so you can narrow the field before you brief us. Moissanite is sold by millimetre size and diamond-equivalent weight, so two stones with the same carat number can look different depending on their shape.

Shapes split into two broad families. Brilliant cuts have many small facets that break light into fire, so they sparkle the most. Step cuts have long, straight facets that give clean flashes and an open, glassy look. Once you know which family you prefer, the rest is easier. When you have a shape in mind, start a quote or read more on our main engagement rings page.

Brilliant cuts

Round

The round brilliant is the shape most people picture. Its facets are arranged to return the most light, so it sparkles harder than any other shape and hides small marks well. It suits almost every setting and every hand. See the range on our round engagement rings page.

Oval

An oval keeps the fire of a round but stretches it into a longer outline. That length makes the stone look bigger for its weight and makes the finger look slimmer. It is a strong choice if you want size without moving to a heavier stone. Browse our oval engagement rings.

Cushion

A cushion is a square or rectangle with rounded corners, like a pillow. It has a soft, warm look and plenty of sparkle. The rounded corners also sit safely in most settings. Look through our cushion engagement rings.

Elongated cushion

The elongated cushion takes the soft cushion outline and pulls it longer. You get the same gentle corners with more length across the finger, which flatters the hand and looks larger than its carat weight suggests. See our elongated cushion engagement rings.

Pear

A pear is round at one end and pointed at the other, like a teardrop. Worn with the point towards the nail, it lengthens the finger. It carries strong sparkle and reads as distinctive without being loud. See our pear engagement rings.

Princess

The princess is square with sharp corners and full brilliant faceting, so it holds a modern, crisp look while still sparkling hard. Because the corners are pointed, a setting that protects them is worth considering. Browse our princess engagement rings.

Marquise

A marquise is a long shape with two pointed ends. It covers more of the finger than almost any other shape at the same weight, so it looks large and draws the eye down the hand. See our marquise engagement rings.

Radiant

The radiant is a rectangle or square with cropped corners and brilliant faceting. It bridges the crisp lines of a step cut with the sparkle of a brilliant, and the trimmed corners make it hard-wearing. Look at our radiant engagement rings.

Heart

A heart is a pear with a cleft cut into the rounded end. It reads as clearly romantic and works best from around one carat up, where the shape stays crisp. See our heart engagement rings.

Step cuts

Emerald

An emerald cut is a rectangle with straight, stepped facets and cropped corners. Instead of hard sparkle it gives long, mirror-like flashes and a clear window into the stone. That open face means a well-graded stone matters. See our emerald engagement rings.

Asscher

The asscher is the square cousin of the emerald cut. It has the same stepped facets and open face, framed in a near-square outline with cropped corners, which gives it a calm, geometric look. Browse our asscher engagement rings.

Multi-stone styles

Trilogy and three-stone

A trilogy ring sets three stones together, usually a larger centre with two matched stones on either side. You can mix shapes here, such as a round centre with pear sides, and the extra stones add width and presence. See our trilogy engagement rings.

Once you have a shape in mind

Pick the shape you keep coming back to, then let us build around it. Every shape here can be set in 9ct or 18ct gold or in platinum, with a GRA-certified moissanite or an IGI or GIA lab diamond. Start a custom commission, message us on WhatsApp, or go back to the home page to see current work.

Which shape sparkles the most?

The round brilliant returns the most light, so it sparkles hardest. Oval, cushion and radiant also sparkle strongly. Emerald and asscher give cleaner, calmer flashes.

Which shape looks biggest for its weight?

Long shapes cover more finger. Marquise, oval, pear and elongated cushion all look larger than a round of the same weight.

Do step cuts need a better stone?

Yes. Emerald and asscher cuts have open faces that show more, so a cleaner, well-graded stone reads better in those shapes than in a busy brilliant cut.