What Is Moissanite? Everything You Need to Know About This Brilliant Diamond Alternative
Moissanite is becoming increasingly popular in the jewelry market, and it’s easy to see why. In this article, we’ll walk you through everything you need to know about this brilliant diamond substitute.
What's Moissanite
What's Moissanite
A gemstone originates from space meteorites
A gemstone originates from space meteorites
Moissanite may look like a diamond at first glance, but it has a truly cosmic origin. This stunning gemstone was first discovered in 1893 by French scientist Henri Moissan, who found tiny crystals of a never-before-seen mineral in a meteor crater in Arizona. At first, he thought it was a diamond, but later tests revealed it was something entirely different: silicon carbide.
Natural moissanite is incredibly rare; in fact, all moissanite used in jewelry today is lab-created moissanite. But don’t let the term “lab-created” fool you. These gems are carefully grown under controlled conditions, replicating the intense heat and pressure of their natural origins. The result? A brilliant, durable, and ethical alternative to traditional diamonds.
Moissanite offers more than just a diamond look-alike — it has its own sparkle, character, and story. From a scientific marvel found in outer space to a meaningful symbol of love here on Earth, moissanite has quickly become one of the most beloved choices for modern couples seeking something extraordinary.
Properties of Moissanite: Hardness, Fire, Brilliance, and Durability
Properties of Moissanite: Hardness, Fire, Brilliance, and Durability
Properties of Moissanite: Hardness, Fire, Brilliance, and Durability
Properties of Moissanite: Hardness, Fire, Brilliance, and Durability
What makes moissanite truly stand out, beyond its dazzling beauty, are its exceptional physical properties. If you’re shopping for an engagement ring that can last a lifetime (or two), moissanite checks all the boxes.
Hardness: On the Mohs hardness scale, moissanite ranks at 9.25, just below a diamond’s perfect 10. That means it’s highly resistant to scratching compared to other gemstones — ideal for everyday wear.
Brilliance: Moissanite has a higher refractive index (2.65–2.69) than diamonds (2.42), which means it bends light more dramatically. The result? A fiery, rainbow-like sparkle that catches the eye from across the room.
Fire: Fire refers to a gemstone’s ability to disperse light into flashes of color. Moissanite’s fire is 2.5 times greater than that of diamonds! Yes, it has greater fire and gives it a lively, almost ethereal glow.
Durability: Besides being hard, moissanite is also extremely tough, which makes it highly resistant to breaking, chipping, or cracking. That makes it not just beautiful, but practical for daily life.
In short, moissanite isn’t just a “budget-friendly” option — it’s a performance gem. If you’re someone who wants your ring to keep up with your lifestyle, moissanite is more than up to the task.
Is Moissanite the Same as Cubic Zirconia?
Is Moissanite the Same as Cubic Zirconia?
It’s a common question — and the short answer is: no, moissanite and cubic zirconia (CZ) are not the same thing.
While both are diamond alternatives, they differ dramatically in quality, durability, and brilliance:
| Feature | Moissanite | Cubic Zirconia (CZ) |
|---|---|---|
| Material | Silicon carbide | Zirconium dioxide |
| Hardness (Mohs) | 9.25 | 8–8.5 |
| Brilliance | Higher than diamond (2.65–2.69 RI) | Lower than diamond (2.15 RI) |
| Durability | Excellent (resists scratching) | Softer, scratches and clouds over time |
| Longevity | Lifetime gemstone | Wears down and dulls with regular wear |
| Cost | Higher than CZ, but still affordable | Very inexpensive |
Moissanite is a premium alternative to diamonds — built to last, used in engagement rings, and holds its beauty over time. Cubic zirconia, on the other hand, is much more affordable but also less durable and less brilliant, often used for fashion jewelry or temporary pieces.
So if you’re choosing a gemstone for an engagement ring or other meaningful jewelry, moissanite offers a much higher standard — one that’s made to last a lifetime.
Moissanite Color Grades Explained
& Moissanite's Own 4C System
People evaluate moissanite based on a similar grading system to diamonds; both have certain quality factors, but it doesn’t follow the exact same one. Understanding how moissanite is graded can help you make a confident and informed choice.
Moissanite Color Grades Explained
& Moissanite's Own 4C System
Moissanite Color Grades Explained
& Moissanite's Own 4C System
People evaluate moissanite based on a similar grading system to diamonds; both have certain quality factors, but it doesn’t follow the exact same one. Understanding how moissanite is graded can help you make a confident and informed choice.
Moissanite's Color Grades
Moissanite's Color Grades
Although moissanite’s color grading is based on the diamond system, moissanite is not classified as meticulously, but rather divided into ranges. Typically, moissanite comes in three color categories:
· Colorless (D–F): These moissanites appear icy white and are closest to traditional colorless diamonds.
· Near Colorless (G–H/I): These have a slight warmth, often preferred by those who want a more natural or vintage look.
· Faint Color (J–K and below): These moissanites have a noticeable warmth, similar to antique diamonds.
Unlike diamonds, moissanite’s color isn’t graded by GIA or IGI, but by the lab that produces it. At MollyJewelryUS, we offer DEF Colorless moissanites and carefully hand-pick each stone for consistency and beauty.
Moissanite vs. Diamond Grading Systems
Moissanite vs. Diamond Grading Systems
Here’s a side-by-side comparison to help clarify the differences:
| Category | Moissanite | Diamond |
|---|---|---|
| Color | DEF (Colorless), GHI (Near Colorless), below J (Faint) | D–Z scale (GIA standard) |
| Clarity | Typically VS or higher (eye clean) | Flawless to Included (FL to I3) |
| Cut | Branded as Excellent/Ideal for best sparkle | Graded by symmetry, polish, proportions |
| Carat Equivalent | Mainly based on mm size | True carat weight |
While gemstones are priced by carat weight, lab-grown gems like moissanite are typically cut into standard sizes. Unlike diamonds, which are often shaped to preserve as much weight as possible from the rough, moissanite is crafted with consistent dimensions, focusing on appearance and symmetry. Also, since the density of moissanite is lower than a diamond, even if they are the same size, they may not have the same carat weight.
Moissanite's Color Grades
Moissanite's Color Grades
Although moissanite’s color grading is based on the diamond system, moissanite is not classified as meticulously, but rather divided into ranges. Typically, moissanite comes in three color categories:
· Colorless (D–F): These moissanites appear icy white and are closest to traditional colorless diamonds.
· Near Colorless (G–H/I): These have a slight warmth, often preferred by those who want a more natural or vintage look.
· Faint Color (J–K and below): These moissanites have a noticeable warmth, similar to antique diamonds.
Unlike diamonds, moissanite’s color isn’t graded by GIA or IGI, but by the lab that produces it. At MollyJewelryUS, we offer DEF Colorless moissanites and carefully hand-pick each stone for consistency and beauty.
Moissanite vs. Diamond Grading Systems
Moissanite vs. Diamond Grading Systems
Here’s a side-by-side comparison to help clarify the differences:
| Category | Moissanite | Diamond |
|---|---|---|
| Color | DEF (Colorless), GHI (Near Colorless), below J (Faint) | D–Z scale (GIA standard) |
| Clarity | Typically VS or higher (eye clean) | Flawless to Included (FL to I3) |
| Cut | Branded as Excellent/Ideal for best sparkle | Graded by symmetry, polish, proportions |
| Carat Equivalent | Mainly based on mm size | True carat weight |
What Shapes Can Moissanite Gems Be Cut Into?
What Shapes Can Moissanite Gems Be Cut Into?
Moissanite is available in a variety of different cuts, more than you can imagine! Round, oval, pear, marquise… these are just the basics.
Thanks to moissanite’s exceptional hardness, it can be cut into nearly any shape with precision and brilliance. That means you’re not limited to the same old styles.
Want something a little more unexpected? Kite cut, hexagon, coffin, or even custom geometric shapes, moissanite can handle them all. These unique shapes are perfect for couples who want a ring that feels a little more “them” — something bold, artistic, or symbolic. Whether you’re dreaming of something romantic and soft or edgy and architectural, moissanite opens up a world of possibilities.
So don’t be afraid to think beyond the round brilliant. With moissanite, your dream shape can absolutely become reality.
Does moissanite come with a certificate?
Does moissanite come with a certificate?
Moissanite doesn’t usually come with a third-party gemological certificate like natural diamonds do, and that’s completely normal.
Because moissanite is lab-created under highly controlled conditions instead of a natural gemstone, most reputable jewelers are able to offer high quality moissanite stone, and it doesn’t show the same wide range of natural variations as mined diamonds. That’s why most moissanite stones aren’t sent to labs like GIA or IGI for grading. Additionally, sending a moissanite stone to a third-party lab can increase the overall cost without adding much value. Moissanite grading isn’t an industry-wide science, the way diamond grading is. Most moissanite stones are already cut to high standards and fall within a narrow clarity range (usually VS or better).
However, major manufacturers like Charles & Colvard typically include an authenticity card, which serves more like a warranty or proof of origin, rather than a detailed grading report. At MollyJewelryUS, we’re happy to provide a certificate of authenticity upon request, confirming the materials used, and proving the originality of the design. Anyway, it’s less about mimicking the diamond industry and more about standing behind what we create.
And here’s something important: because moissanite grading isn’t standardized industry-wide, some sellers may try to impress buyers with so-called “certificates” from unofficial labs. One name that pops up frequently is GRA, which is not a recognized gemological authority. These documents can look convincing, but have no actual credibility.
In the end, instead of obsessing over minute grading differences, most couples focus on the overall look, ethical value, and long-term sparkle.
Does moissanite come with a certificate?
Does moissanite come with a certificate?
Moissanite doesn’t usually come with a third-party gemological certificate like diamonds do, and that’s completely normal.
Because moissanite is lab-created under highly controlled conditions, it doesn’t show the same wide range of natural variations as mined diamonds. That’s why most moissanite stones aren’t sent to labs like GIA or IGI for grading. Additionally, sending a moissanite stone to a third-party lab can increase the overall cost without adding much value. Moissanite grading isn’t an industry-wide science, the way diamond grading is. Most moissanite stones are already cut to high standards and fall within a narrow clarity range (usually VS or better).
However, major manufacturers like Charles & Colvard typically include an authenticity card, which serves more like a warranty or proof of origin, rather than a detailed grading report. At MollyJewelryUS, we’re happy to provide a certificate of authenticity upon request, confirming the materials used, and proving the originality of the design. Anyway, it’s less about mimicking the diamond industry and more about standing behind what we create.
And here’s something important: because moissanite grading isn’t standardized industry-wide, some sellers may try to impress buyers with so-called “certificates” from unofficial labs. One name that pops up frequently is GRA, which is not a recognized gemological authority. These documents can look convincing, but have no actual credibility.
In the end, instead of obsessing over minute grading differences, most couples focus on the overall look, ethical value, and long-term sparkle.
Why Choose Moissanite Over Diamond?
Why Choose Moissanite Over Diamond?
Advantages of Moissanite
Advantages of Moissanite
Moissanite is more than just a diamond alternative — it’s a reflection of modern love. It’s for couples who think independently, who care about value, ethics, and beauty, and who believe that meaning matters more than tradition. With its dazzling brilliance, durable performance, and conscious sourcing, we recommend choosing moissanite over diamond! The following is a summary of the advantages of moissanite. If you would like to see a side-by-side comparison details, check out our full guide: Moissanite vs Diamonds
✅ affordable
✅ affordable
Moissanite costs a fraction of the price of a diamond of similar size and quality, which means you can go bigger, bolder, or save that money for your honeymoon, home, or future plans.
✅ Eco-friendly qualities
✅ Eco-friendly qualities
Moissanite is lab-grown with minimal environmental impact — no mining, no land disruption, no toxic runoff. It’s a choice that’s lighter on the planet and better for future generations.
✅ durable Option
✅ durable Option
While no gemstone is indestructible, some gemstones are slightly harder and more durable for daily wear. On the Mohs Scale of Hardness, moissanite is rated as a 9.25 out of 10, which is higher than any gemstone used in jewelry besides diamond.
✅ guilty-free sparkle
✅ guilty-free sparkle
Because it’s created without unethical labor practices or conflict sourcing, moissanite lets you wear your sparkle proudly — with a clear conscience and no compromise on brilliance.
Top Picks For You
Snowdrift | Round Moissanite Engagement Ring Set Cluster Bridal Ring Set – Symmetrical & Bold Accents
Inspired by the lovely charm of snowfall, the Snowdrift Bridal Set is crafted to commemorate the joy that arises when simple moments in life blend to form something extraordinary.
Pear Cut Moissanite Engagement Ring Infinity Promise Ring
The design features a brilliant pear cut moissanite center stone, with pavé accents along the sides adding to its glow. Twisting gracefully into the shape of an infinity symbol (∞), the lines weave a timeless tale of eternal love. With every glimmer and curve, the Infinity Ring beautifully captures the promise of forever in each intricately placed stone.
Pear Cut Moissanite Engagement Ring Set Nature Inspired Bridal Set
Capturing the essence of nature’s beauty, the focal point of this exquisite bridal set is a pear shaped moissanite, complemented by the bouquet side stones. The wedding band features branches and leaves that perfectly match the engagement ring, adding a touch of whimsy. This set is an ideal expression of your love!
Snowdrift | Moissanite Curved Wedding Band Unique Stacking Ring
The round cut moissanite/diamonds create a picturesque scene of a snowy landscape, makes this wedding band exudes the serene beauty of a winter’s day with a gentle snowfall. It’s the perfect balance of simplicity and elegance, making it a versatile complement to a wide range of engagement rings.
Half Carat Oval Cut Moissanite Promise Ring Dainty Engagement Ring
This ring features a 4x6mm oval center stone of approximately 0.5 carats, making it an excellent choice for those with smaller hands. It represents the beautiful bond of love and commitment, reminding us that love knows no bounds and is not defined by a stone’s size.
1.5 Carat Oval Cut Moissanite Engagement Ring Diamond Accents Promise Ring
Make a bold statement of your love. This engagement ring features a 1.5ct oval cut center stone, radiate brightly all around. Available to choose a low or high profile setting to match your desired wedding band.
Snowdrift | Half Carat Round Cut Moissanite Promise Ring Cluster Engagement Ring – Flip & Petite Accents
Inspired by the lovely charm of snowfall, the Snowdrift Ring is crafted to commemorate the joy that arises when simple moments in life blend together to form something extraordinary.
0.5CT Oval Cut Moissanite Promise Ring Classic Side Stone Engagement Ring
Timeless elegance meets modern brilliance with this 0.5CT oval cut moissanite engagement ring. Featuring a dazzling classic side stones design, it offers unmatched brilliance, perfect for symbolizing your everlasting love.
1CT Marquise Cut Moissanite Classic Side Stone Engagement Ring
Timeless elegance meets modern brilliance with this 1CT marquise cut moissanite engagement ring. Featuring a dazzling classic side stones design, it offers unmatched brilliance, perfect for symbolizing your everlasting love.
Oval Cut Moissanite Bridal Ring Set Dainty Engagement Ring Set
This bridal set consists of an oval cut moissanite engagement ring and a curved wedding band. The engagement ring is set with round cut moissanite on both sides, a delicate and elegant design that perfectly presents the beauty of simplicity. The curved design of the wedding band complements the main band, symbolizing pure and eternal love.
Pear Cut Moissanite Blossom Engagement Ring Double Claw Setting
For this engagement ring, we used a cluster of round and marquise moissanite/diamonds on the side stones of the engagement ring to create a blooming ambiance. Enhancing the main stone while also bringing elegance to the overall design.
1.5CT Oval Cut Moissanite Classic Side Stone Engagement Ring
Timeless elegance meets modern brilliance with this 1.5CT oval cut moissanite engagement ring. Featuring a dazzling classic side stones design, it offers unmatched brilliance, perfect for symbolizing your everlasting love.
Round Cut Moissanite Engagement Ring Set Unique Bridal Set
This exquisite wedding set offers Moissanite/Lab-grown diamond main stone options and Moissanite/diamond side stones. Meticulously crafted for grace and personalization, elevate your wedding day with a touch of timeless allure and customizable elegance.