What is Moissanite? A Beginner's Guide
When it comes to choosing an engagement ring or fine jewellery piece, more and more couples are stepping away from traditional mined diamonds and embracing alternatives that are just as stunning, but far more ethical and accessible. Moissanite is one of the most sought-after gemstones in this category, offering exceptional brilliance, durability, and value. But what exactly is moissanite, and how did it go from a rare mineral found in a meteorite to a popular centre stone for modern engagement rings?
In this blog, we explore the full history and science behind moissanite, from its cosmic origins to how it compares to lab-grown diamonds. Whether you're just starting your engagement ring journey or you're already in love with the look of moissanite, this guide will provide everything you need to know.
Lily Arkwright Moissanite Collection
What is Moissanite?
Moissanite is a dazzling gemstone first discovered in a meteorite crater in the late 19th century by Nobel Prize‑winning chemist Henri Moissan. Though exceedingly rare in nature, rarer even than diamonds, moissanite today is created in laboratories using advanced thermal-growing processes that replicate natural conditions. The result is a gemstone that is nearly indistinguishable from a diamond in terms of brilliance and clarity, yet far more accessible, sustainable, and ethical.
Often mistaken for diamonds due to its high refractive index and durability, moissanite has carved out its own space in the world of fine jewellery. It’s not a diamond, but it’s not trying to be. Moissanite is a remarkable gemstone in its own right.
Lily Arkwright Custom 8ct Radiant Moissanite Paris Ring
How is Moissanite Pronounced?
Moissanite is pronounced MOY (rhymes with BOY)-san-ite, emphasis on the first syllable, 'MOY'. The name honours Henri Moissan, the French chemist who discovered the gemstone in a meteorite crater.
While the pronunciation might occasionally trip people up, it’s quickly becoming a household name in the world of fine jewellery, thanks to its rising popularity and reputation for unmatched sparkle and sustainability.
Lily Arkwright Coco Moissanite Engagement Ring
Moissanite vs Lab Diamond
How is moissanite different from lab diamond? While moissanite and lab-grown diamonds share striking visual similarities, they are chemically and optically distinct. Lab diamonds are real diamonds created under high-pressure, high-temperature conditions. Moissanite, on the other hand, is silicon carbide. Visually, moissanite often exhibits more fire, the rainbow flashes of colour, thanks to a higher refractive index. Lab diamonds, however, mimic the traditional diamond look.
Lily Arkwright Rosalee Moissanite Engagement Ring
What is Moissanite Made Of?
Moissanite is composed of silicon carbide (SiC). This robust material ranks 9.25 to 9.5 on the Mohs hardness scale, just behind diamond, which rates a perfect 10. It’s incredibly durable and scratch-resistant, ideal for everyday wear in engagement rings.
Its strength means it resists chipping and abrasion, making it a practical choice for those with active lifestyles. In addition to its durability, silicon carbide’s crystalline structure is what gives moissanite its extraordinary fire and brilliance. These features make it an exceptional gemstone for jewellery that’s intended to be worn and treasured every day.
Lily Arkwright Bespoke Moissanite Rings
How is Moissanite Made?
Today, moissanite is grown in laboratories using a thermal growing process that replicates the natural formation of silicon carbide. This controlled environment ensures precise control of quality, clarity, and colour, producing gems that rival the finest natural examples at a fraction of the cost.
The advanced technology used in growing moissanite allows for consistently high-quality stones, free from the inclusions and impurities commonly found in natural gems. Each crystal is carefully cut and polished to maximise its fire and brilliance. This process results in a gemstone that is not only beautiful but also responsibly sourced from start to finish.
Lily Arkwright Paris Emerald Moissanite Engagement Ring
What is Moissanite Good For?
Moissanite is perfect for those who value brilliance, durability, ethics, and cost-effectiveness. It offers a stunning resemblance to diamond, often even more sparkly, without the ethical and environmental concerns of mined stones. Its hardness ensures lasting beauty, while its lab-grown origins make it a conscious choice.
Whether you're buying your first fine jewellery piece or searching for a meaningful engagement ring, moissanite offers versatility and elegance across a range of budgets and styles. It’s also a popular option for anniversary rings, right-hand rings, and even earrings and pendants, thanks to its stunning visual appeal and long-lasting performance.
Lily Arkwright Lulu Elongated Cushion Moissanite Engagement Ring
Why Moissanite Is Better Than Diamond
For some, moissanite is 'better' than diamond. Not in intrinsic value, but rather in ethics, affordability, and sparkle. It delivers breathtaking brilliance that’s nearly indistinguishable from diamond, but without the stigma of environmental or human cost.
It offers the freedom to design a ring that makes a real statement, both visually and ethically. For those looking to make a meaningful, modern choice that reflects their values, moissanite stands out as a compelling and beautiful alternative.
Lily Arkwright Farrah Moissanite Eternity Band
Moissanite Sparkle vs Diamond Sparkle
Moissanite's sparkle tends to be more fiery with a rainbow-like brilliance thanks to its higher refractive index. Diamonds, while still extremely brilliant, typically offer sharper white light returns and nuanced flash patterns. The result: moissanite feels more 'disco-ball', while diamonds are subtle elegance.
This difference in sparkle can influence personal preference. Some adore the vibrant, lively flashes of moissanite, while others prefer the understated, classic glimmer of a diamond. Both are gorgeous in their own right, it simply comes down to the style and energy you want your ring to convey.
Lily Arkwright Lulu Oval Moissanite Engagement Ring
Where to Buy Moissanite Rings
Discover moissanite rings at Lily Arkwright, available both online and in-store in our Manchester showroom and new Marylebone flagship store. We offer both Charles & Colvard’s premium Forever One moissanite and our own Lily Arkwright Moissanite range, offering similar brilliance at lower price points. Each ring is hallmarked and created with the same commitment to quality and craftsmanship.
Our expert team is always on hand to guide you through the buying process, answer any questions, and help you design the perfect ring to mark your forever moment.
Lily Arkwright Showroom Consultations
Conclusion
Moissanite has earned its place as a leading choice for modern engagement rings, thanks to its dazzling brilliance, ethical production, and exceptional value. From its celestial origins to its lab-grown evolution, moissanite tells a story of innovation, beauty, and conscious luxury. At Lily Arkwright, we’re proud to offer moissanite jewellery that reflects the values and aesthetics of today’s couples who are choosing meaningful pieces that celebrate love without compromise. Whether you're captivated by its fiery sparkle or inspired by its sustainability, moissanite makes it possible to say yes to everything you want in an engagement ring.