Moissanite Engagement Rings

Brilliant, affordable, durable and sought-after.
Moissanite has an irresistible sparkle.

Brilliant

Eye-catching stone with high fire and light dispersion

Affordable

Up to 90% less than a mined diamond

Durable

9.25 on the Mohs scale, Moissanite will last a lifetime

What Is Moissanite?

Moissanite is an exquisitely beautiful gemstone, and is an excellent choice for an affordable engagement ring. It’s nearly as hard as diamond and will last a lifetime, guaranteed. With more fire and brilliance than a diamond, it’s an eye-catching center stone that will light up a room.


What is a Moissanite Diamond Made From?

When French scientist Henri Moissan first discovered moissanite in a meteor crater in Arizona in 1893, he believed he had stumbled on a trove of diamonds. But Moissan’s sparkling discovery was stunningly distinct. With further investigation, it became crystal clear that the scientist had chanced upon a new stone entirely—one made from silicon carbide, which, like the carbon that comprises diamonds, boasts incredible strength, durability and thermal conductivity.

Because of the rarity of naturally occurring silicon carbide, this brilliant gem—aptly named moissanite to honor Henri—is almost always developed in labs through painstaking, fastidious care. Each lab-created moissanite stone emerges from a meticulous two- to three-month process that combines intense heat and pressure to create lasting radiance, brilliance and fire, similar to that of a natural moissanite. The result? A diamond alternative destined to shine for generations.  

What are the Pros and Cons of Moissanite?

Pro: Affordable Pricing

What is a moissanite stone if not the best very of both worlds: decidedly premium quality and genuine affordability. With more than twice the fire of a diamond at a fraction of the cost, durable moissanite gemstone combines luxury and accessibility. 

According to the International Gemstone Society, by spending less than $1,000, you can receive a moissanite stone the size of a one-carat diamond for three times less than the standard cost—and all without compromising on color or clarity. In fact, our lab-created diamond simulants cost up to 90% less than mined diamonds while featuring sparkling brilliance, long-lasting durability, and unique premium cuts. A stunning gemstone at a stunningly low price point? It’s no wonder that so many modern couples choose to commemorate their love with moissanite jewelry and engagement rings.

Pro: Ethical Origins

Every aspect of a moissanite stone shines, including its origins. Ethically sourced, lab-grown moissanite gemstone is renowned for its conflict-free nature and environmentally friendly processes, removed from unethical mining practices and engineered by scientists with sustainable practices in mind. Look and feel your best in diamond alternatives crafted with conscientious care and the utmost attention to clarity, color and cut. With eco-friendly simulants that dazzle just like diamonds—but don’t compromise your comfort or arrive with hidden costs—you can sparkle with confidence and enjoy beautiful peace of mind. 

Pro: Irresistibly Sparkly

If you’re looking to turn heads and win hearts, it’s hard to find a more eye-catching or radiant stone than moissanite. This eco-friendly diamond alternative may even compete with the cut, clarity, and brilliance of comparable mined diamonds measured on the standard diamond carat size chart. But unlike mined diamonds which emit colorless flashes when exposed to light, silicon carbide is double-refractive, creating a multi-hued rainbow of shimmer with every turn of the stone or encounter with light. What does this mean for your premium Nexus Diamond™ jewelry? More fire, more brilliance and more sparkle in your go-to pendant, engagement ring or custom design. 

Pro: Seriously Durable

Moissanite ranks a 9.25 out of 10 on the industry-standard Mohs Scale of Hardness, just a touch under the ranking of mined diamonds. The serious durability of moissanite makes it a perfect choice for the center stone in your fine jewelry pieces. Given their top-notch brilliance and incredible tensile strength, our lab-grown diamond simulants deliver elegance and dazzle, without the worries about breaks, chips and cracks. Keep in mind, however, that certain gemstone cuts and shapes may require more delicate handling than others. Pear cuts and other elegant shapes may benefit from special settings that can help protect against everyday stress and damage. Speak with one of our experts about your unique needs. 

Pro: Visibly Flawless

Lab-grown moissanite will certainly make an appealing option if your gemstone’s clarity is a top priority. Our moissanite diamond alternatives must achieve a clarity grade of VS or higher to be sold on the market. In other words, when you choose moissanite, you’re guaranteed a gorgeous stone with no visible flaws, perfect in appearance to the naked eye. And, when it comes to this gemstone, good things do last forever. This sparkly stone keeps its brilliance over time, so your fine jewelry can live on as a stunning heirloom piece that dazzles for generations to come. 

Con: Slightly Different Sparkle Than Diamonds

While lab-grown moissanite offers greater brilliance than mined diamonds, differences in composition between the two gemstones result in slightly distinct sparkle patterns. Moissanite’s superior clarity—free of the inclusions and color variations in its mined counterparts—comes from a shift in light refraction properties. Moissanite is doubly refractive, which means that it sparkles much more—and much more colorfully—than the single refractive diamond. 

While many delight in the dramatic blaze of this lab-grown dazzler, moissanite’s rainbow shimmer is distinctive—it does not perfectly match the white sparkle of real diamonds. The difference can be extremely subtle, especially with smaller stones, but experts with a trained eye can identify a diamond vs moissanite center stone based on sparkle alone.

Con: Hints of Warm Undertones

Colorless moissanite makes a fantastic alternative for those looking to simulate the versatility of the diamond. To attain its prized colorless quality, each gem undergoes a whitening process during its development. However, the ultimate degree of moissanite’s colorlessness may vary slightly from stone to stone. Some gems closely compare to near-colorless diamonds, while others may be slightly warmer in color with hints of yellow and green. 

If you’re concerned about the hue of your gemstone, our experts can help you find your perfect diamond simulant. Each of our carefully crafted moissanite stones earns D, E, or F grades on the color scale of D to Z, with D being colorless.  

Con: Less Access to Repairs, Resizing, and Resetting

While moissanite is one of the most promising additions to the world of fine jewelry, its innovative nature may make it more challenging to find jewelers that specialize in your stone in the event that you’re interested in resizing or resetting—at least compared to the many jewelers who work with mined diamonds. 

Additionally, certain critics of moissanite argue that the stone does not retain its value over time. But this critique is not unique to moissanite; the same has been said of mined diamonds and other diamond alternatives within the retail space. It’s even possible that—given its durable quality and forever brilliance—moissanite boasts unparalleled longevity. If you have questions about caring for your moissanite jewelry through the years, our experts are happy to share insights and resources. 

The Science Behind The Sparkle

Moissanite is one of the most beautiful gemstones in the world

Many see more sparkle, fire and brightness from a moissanite than from a diamond.

  • Moissanite is more brilliant than a diamond on the Brilliance Refractive Index (which measures a gem’s sparkle).
  • Moissanite has a greater dispersion and iridescence (commonly referred to as “fire”) than a diamond.
  • Moissanite has double the brightness of a diamond: It’s twice as refractive as a diamond. Refractivity is how many times light is “bent” when it passes through a gemstone.

 

Discovered first in a meteor crater

Now a lab-created stunner

The naturally occurring mineral moissanite was discovered by Henri Moissan while examining rock samples from a meteor crater located in Canyon Diablo, Arizona. Henri mistakenly identified moissanite as a diamond, but later he correctly identified the crystals as silicon carbide. This mineral form of silicon carbide was named “Moissanite” in honor of Henri, later on in his life.

While moissanite is a naturally occurring material, it is incredibly rare to find. In 1998, the lab creation of moissanite was perfected through a sophisticated, scientific process and then offered widely to the consumer market.

 

Exceptional Quality

An affordable, durable, and eco-conscious alternative to a mined diamond

The moissanite gemstones we offer are exclusively lab created. Moissanite gemstones are colorless (graded D, E, or F), of high clarity (VS1 or better), and are manufactured to an Excellent Cut, Polish and Symmetry.

  • Moissanite is extremely durable and can be set and finished into all types of fine jewelry.
  • Moissanite ranks on the Mohs hardness scale at 9.25 or better.
  • Moissanite is less susceptible to cracking and chipping than a diamond as it has greater tensile strength and is less brittle than diamond.

Moissanite Origins

What is moissanite? Part happy accident, part scientific innovation. 

Nobel Prize-winning French scientist Henri Moissan first discovered moissanite in 1893 after hunting for minerals with properties that might be ideal for electrical conductivity. As he investigated rock samples that he’d collected from a meteor crater in Canyon Diablo, Arizona, Moissan noticed that his fragments carried an unmistakable shine. Diamond—or so he thought. In fact, Moissan had stumbled upon something much rarer, something with more brilliance and fire than even that of the coveted, carbon-based stone. Moisson identified the new material as the mineral form of silicon carbide, a hard, brilliant substance that is exceedingly durable and exceedingly rare. Today, we know this gemstone as “moissanite,” named in honor of Moissan’s contributions. 

The path to creating lab-grown moissanite began after the stone’s initial discovery, but Moissan could not replicate the sparkly mineral. It wasn’t until the 1990s, more than a century after the discovery of the stone, that scientists from the Research Triangle Park in North Carolina patented a process for creating silicon carbide—the compound that compromises Moissan’s prized gem. Eventually, lab-grown moissanite entered the marketplace through this meticulous, sophisticated scientific process that requires at least two months per stone. Well worth it. Affordable, eco-conscious, and undeniably brilliant, moissanite continues to make a stunning impact as a diamond alternative.

Moissanite and the 4Cs

Moissanite is graded on the 4Cs just like diamonds are!

Our moissanites are near colorless and all graded D-F. Diamonds are graded on a color scale of D-Z with D being colorless and Z being very yellow.

All of our moissanites are manufactured to have an excellent cut. Cut grade refers to how a stone’s facets interact with light, and diamonds are graded on a scale that ranges from ideal and excellent cuts to good and poor cuts.

Our moissanites are all graded VS1 (very slightly included) or better. A stone’s clarity is the measurement of inclusions and visual blemishes in the stone. Clarity measurements range from Flawless to Included. VS1 stones do not have inclusions that are easily visible with the naked eye.

Our moissanites are available in a variety of carat weights and are much more affordable than a mined diamond. They generally cost about $700 per carat.

Moissanite vs. Diamond

Diamond

Moissanite

Composition

Carbon

Silicon carbide

Origin

The origins of diamonds vary, depending on the stone. While diamonds can be created ethically in labs, some of these stones are mined from the Earth in controversial practices. 

While silicon carbide can occur naturally, the mineral form of this compound is incredibly rare. Therefore, almost all moissanite is developed ethically in labs through an intensive scientific process.

Brilliance and fire

Diamonds are singly refractive, with a Brilliance Refractive Index (RI) of 2.41. This stone is known for reflecting light that is white in appearance.

Moissanite stones are doubly refractive, with a Brilliance Refractive Index (RI) of 2.65–2.69. Dispersing more than twice the light of a diamond, fiery moissanite emits rainbow-hued flashes and makes an ultra-sparkly impact.

Color

Although diamonds can be found in a variety of colors and fall along the D to Z scale (with D being colorless and Z being very yellow), most of these gemstones boast a naturally colorless body. Without yellow, green or gray undertones, most diamonds achieve a versatile bright, white look.

Most lab–developed moissanite appears colorless, and all of our meticulously processed stones earn grades from D–F on the color scale. While some larger stones may contain slight warm undertones or hints of gray and green, these distinctions have become rare and may only be noticeable in certain lighting conditions.

Durability

Earning a 10 on the Mohs Scale of Hardness, diamonds are the most durable gemstone in the world, making them an attractive choice for those interested in longevity.

With a 9.25 on the Mohs Scale of Hardness, moissanite boasts durability that’s nearly at the level of the diamond. Thanks to its incredible tensile strength and proven hardness, this gemstone makes a compelling option for everyday wear and future heirlooms.

Cost

Diamond mining requires the use of labor and resources that can come with a massive cost. While diamond prices hinge on several factors, including cut, carat size, color and clarity, expect to pay a premium for a natural stone.   

A moissanite stone will cost significantly less than a mined diamond of the same carat size—up to 90% less, in fact. Interested in making a powerful statement at a fraction of the price? Moissanite might be right for you.

Impact

Diamond mining practices may cause earth displacement, acid drainage and habitat destruction. Aside from their ecological impact, it’s possible that diamond mining contributes to human rights issues, including forced labor and violence.

Because almost all moissanite is created in labs, the cultivation of this stone remains free from conflict, cruelty and environmental consequences. With a smaller carbon footprint than most natural gemstones, moissanite makes a sustainable option that doesn’t sacrifice ethics for beauty.

Diamond

Composition

Carbon

Origin

The origins of diamonds vary, depending on the stone. While diamonds can be created ethically in labs, some of these stones are mined from the Earth in controversial practices.

Brilliance and fire

Diamonds are singly refractive, with a Brilliance Refractive Index (RI) of 2.41. This stone is known for reflecting light that is white in appearance.

Color

Although diamonds can be found in a variety of colors and fall along the D to Z scale (with D being colorless and Z being very yellow), most of these gemstones boast a naturally colorless body. Without yellow, green or gray undertones, most diamonds achieve a versatile bright, white look.

Durability

Earning a 10 on the Mohs Scale of Hardness, diamonds are the most durable gemstone in the world, making them an attractive choice for those interested in longevity.

Cost

Diamond mining requires the use of labor and resources that can come with a massive cost. While diamond prices hinge on several factors, including cut, carat size, color and clarity, expect to pay a premium for a natural stone.

Impact

Diamond mining practices may cause earth displacement, acid drainage and habitat destruction. Aside from their ecological impact, it’s possible that diamond mining contributes to human rights issues, including forced labor and violence.

Moissanite

Composition

Silicon carbide

Origin

While silicon carbide can occur naturally, the mineral form of this compound is incredibly rare. Therefore, almost all moissanite is developed ethically in labs through an intensive scientific process.

Brilliance and fire

Moissanite stones are doubly refractive, with a Brilliance Refractive Index (RI) of 2.65–2.69. Dispersing more than twice the light of a diamond, fiery moissanite emits rainbow-hued flashes and makes an ultra-sparkly impact.

Color

Most lab–developed moissanite appears colorless, and all of our meticulously processed stones earn grades from D–F on the color scale. While some larger stones may contain slight warm undertones or hints of gray and green, these distinctions have become rare and may only be noticeable in certain lighting conditions.

Durability

With a 9.25 on the Mohs Scale of Hardness, moissanite boasts durability that’s nearly at the level of the diamond. Thanks to its incredible tensile strength and proven hardness, this gemstone makes a compelling option for everyday wear and future heirlooms.

Cost

A moissanite stone will cost significantly less than a mined diamond of the same carat size—up to 90% less, in fact. Interested in making a powerful statement at a fraction of the price? Moissanite might be right for you.

Impact

Because almost all moissanite is created in labs, the cultivation of this stone remains free from conflict, cruelty and environmental consequences. With a smaller carbon footprint than most natural gemstones, moissanite makes a sustainable option that doesn’t sacrifice ethics for beauty.

 

Adorn with a classic moissanite gemstone.

The classic moissanite stone has proven itself for centuries as a worthy alternative to the natural diamond. You can find it as the center stone of moissanite rings, sparkling on moissanite earrings, and on your favorite piece of jewelry.

Whatever your choice of jewelry may be, discover the treasures of this diamond alternative with Diamond Nexus. 

For cherished jewelry built to last, shop Diamond Nexus today.

Commonly Asked Questions

Yes. Just like diamonds, moissanite is graded for color, clarity, cut, polish and symmetry. Our moissanites are considered top gem quality as they are colorless (D-E-F), high clarity (VS1 or better) and have excellent cut, polish and symmetry.

Yes, with a hardness of 9.25 or greater on the Mohs scale, moissanite is very durable and suitable for all types of fine jewelry.

No. A moissanite will retain its beauty and sparkle for a lifetime.

No, moissanite is a gemstone in a class to itself composed of silicon carbide. It is commonly considered a diamond simulant and is a beautiful and affordable alternative to a diamond.

No worries! Just call our Design Consultants at 800.509.4990 or email us at customercare@diamondnexus.com. Our team of consultants will work with you to add moissanite to just about any of our product offerings.

Yes! We offer a unique and industry leading Lifetime Trade Up program. We also offer a one-of-a-kind, curated Level Up program experience through our sister company.

Both are great choices! We specifically created our patented Nexus Diamond™ alternative gemstone to perform like a diamond. So, if you’re looking for a top-level diamond simulant option, our alternative gemstone is for you. Moissanite differs somewhat from a diamond’s optical performance with added brilliance and fire. While a moissanite performs a bit differently than a diamond, it’s very stunning and also a great choice.

Learn more about the Nexus Diamond™ alternative.

You may clean your moissanite gemstones and jewelry just as you would clean diamond fine jewelry such as using an ultrasonic or steamer. We suggest cleaning your jewelry with a soft bristle toothbrush and non-abrasive, mild soap. Simply brush your jewelry until clean like you brush your teeth and then air dry. For jewelry with substantial residue build up, repeat the cleaning process two to three times.

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