One stone. Nothing competing with it. The solitaire is the ring style that has outlasted every trend, and it remains the most requested engagement ring shape in the world for a simple reason — it puts the stone, and the moment, at the centre. Kosei Moissanites offers solitaire engagement rings across round, oval, marquise, pear, emerald and cushion cuts, each stone GRA certified and hand-set in premium 925 sterling silver. Every ring ships with a certificate of authenticity, lifetime warranty and free U.S. shipping.

Why Choose a Solitaire Moissanite Ring

A solitaire has nowhere to hide. With no halo or side stones drawing the eye, the quality and cut of the centre stone carries the entire ring — which is exactly why moissanite works so well here. Its refractive index is higher than diamond's, so a single well-cut moissanite returns light with a fire that fills the setting on its own.

It's also the most budget-efficient way to go big. Because you're paying for one stone rather than a pavé of dozens, a solitaire lets you scale up carat size dramatically compared with a comparable diamond ring — a 2ct centre stone becomes an easy decision rather than an agonising one.

And practically speaking, solitaires are the easiest style to live with. Fewer stones means fewer prongs to catch, simpler cleaning, and a low profile that sits flat under gloves and pairs flush with almost any wedding band.

Shop Solitaire Rings by Cut

Round Brilliant Solitaires: The benchmark. A 58-facet round cut returns more light than any other shape, making it the safest choice if you're buying without input from the wearer.

Oval Solitaires: Elongates the finger and reads visually larger than a round stone of the same carat weight — currently the fastest-growing solitaire cut.

Marquise Solitaires: Pointed at both ends, dramatic across the finger, and maximum surface area per carat. See our marquise cut collection for the full range.

Pear Solitaires: Half round, half marquise, worn point-down for a slimming line on the hand.

Emerald & Radiant Solitaires: Step-cut and hybrid shapes with long clean flashes rather than sparkle — architectural, understated and increasingly popular for minimalist tastes.

Cushion Solitaires: Soft rounded corners with a slightly antique feel, bridging modern solitaire and vintage styling.

Solitaire Setting Styles

Four-prong: Maximum light entering the stone, most classic silhouette.

Six-prong: More secure, slightly more coverage on the stone, a Tiffany-style profile.

Bezel: A metal rim fully surrounding the stone — the most protective setting and the best choice for active hands.

Cathedral: Arched shoulders lifting the stone, adding height and presence without adding stones.

Hidden halo: A concealed row of pavé beneath the centre stone, visible only from the side. All the profile of a solitaire, with a hint of the halo.

Complete Your Bridal Look

A solitaire pairs with more band styles than any other setting. A straight band sits flush against most solitaires; a contoured band nests neatly under a cathedral or higher-set stone. Browse our wedding bands collection, or choose a pre-matched bridal ring set designed to sit together from day one.

Prefer to see every style side by side before deciding? Start from our full moissanite rings collection or the wider engagement rings collection.

How to Choose a Solitaire Moissanite Ring

Prioritise cut over carat. A well-cut 1.5ct stone outperforms a poorly cut 2ct one every time. Sparkle is a function of proportion, not size.

Consider the wearer's hands. Elongated cuts — oval, marquise, pear — flatter shorter fingers. Round and cushion sit beautifully on longer fingers.

Think about profile height. If they work with their hands, type all day, or wear gloves regularly, a bezel or low-set solitaire will get worn far more often than a tall cathedral setting.

Check sizing before you order. Use our Size Chart, or contact our team — we can help you estimate discreetly if this is a surprise.

Why Shop Solitaire Rings at Kosei Moissanites

• GRA-certified moissanite in every solitaire
• Premium 925 sterling silver settings built for daily wear
• Free shipping across the USA & worldwide
• Lifetime warranty
• Certificate of authenticity included with every ring
• Custom design service for a fully bespoke solitaire

FAQ: Solitaire Moissanite Rings

What is a solitaire ring?

A solitaire is a ring set with a single centre stone and no accent stones. The design directs all attention to that one gem, which is why it has been the default engagement ring style for well over a century.

What carat size should I choose for a solitaire?

Most solitaire engagement rings sit between 1ct and 2ct. Because moissanite costs a fraction of a comparable diamond, buyers often size up — 2ct to 3ct centre stones are common here without stretching the budget. If you're unsure, 1.5ct round is the safest middle ground.

Is a solitaire moissanite ring good for everyday wear?

Yes, and it's arguably the most practical engagement style. Moissanite is 9.25 on the Mohs scale, and a solitaire's simple setting means fewer stones to loosen and less detail to trap dirt. A bezel-set solitaire is the most hard-wearing option of all.

Which wedding band goes with a solitaire?

A straight band sits flush against most low-set solitaires. If the stone is set high in a cathedral or has a hidden halo, a contoured or curved band will nest more neatly. Our bridal ring sets remove the guesswork entirely.

Do solitaire rings look smaller than halo rings?

A halo makes a centre stone read roughly half a carat larger, so a halo will look bigger at the same centre weight. The trade-off is that with moissanite you can simply choose a larger solitaire stone for a similar spend — and get the cleaner silhouette as well.

Do you ship solitaire moissanite rings within the USA?

Yes. We offer free shipping on all U.S. orders and all over the world, and every ring includes a certificate of authenticity and lifetime warranty.