Moissanite Carat Size Chart: Find Your Perfect Ring Size

On a Moissanite Carat Size Chart, measurements are based on millimeter (mm) dimensions rather than actual weight. Because Moissanite is 15-18% lighter than diamond, a 6.5mm round Moissanite is the visual equivalent of a 1.0-carat diamond, even though it technically weighs less. This is known as Diamond Equivalent Weight (DEW).

I’ve seen too many people buy a “2-carat” Moissanite online only to be disappointed when it looks smaller—or way bigger—than they expected. Here is the industry secret: Carat is a weight, not a size. If you shop for Moissanite by weight, you’re doing it wrong.

I’m going to give you the exact mm-to-carat conversions for every shape, from Oval to Pear. I’ll show you why Moissanite’s lower density is actually your best friend for getting a massive look on a budget.

What Is a Moissanite Carat Size Chart?

If you’re wondering how to pick the perfect moissanite carat size for your ring, a moissanite carat size chart is your go-to guide. This chart shows the dimensions (mm) and carat weights for various Moissanite shapes, helping you visualize different moissanite carat sizes so you can find the one that feels just right.

For example, per the moissanite carat chart, a 6.5 mm Round Moissanite weighs 1.00 ct, giving you a clear idea of how it’ll look on your finger. One thing I love pointing out is that carat weight doesn’t always equal visual size—shapes like Oval often appear larger than a Round of the same moissanite carat weight because of their elongated design.

This chart solves the problem of guessing how a size will look, letting you choose a Moissanite that perfectly matches your vision. Imagine you’re torn between a 1.00 ct Round and a 1.00 ct Oval—the chart shows the Oval at 6.5 x 4.5 mm, making it look bigger on your hand, which might be exactly what you’re after.

It’s also a lifesaver if you’re shopping online and can’t see the stone in person, ensuring you’re not disappointed when your ring arrives. To understand more about what makes Moissanite special, check out our 4Cs of Moissanite guide.

Here’s why using a moissanite carat size chart can make your ring shopping easier:

• Compare moissanite carat sizes across shapes to see what fits your style.
• Plan your budget by understanding how carat weight impacts cost.
• Avoid surprises by knowing exactly how big your Moissanite will look.
• Pick a size that complements your finger for a balanced, stunning look.
• Match your setting style, like pairing a larger carat with a halo for extra sparkle.

Moissanite Carat Size vs Diamond: What’s the Difference?

When deciding between Moissanite and diamond for your ring, understanding moissanite carat size vs diamond is key. A question I often hear is: why does a Moissanite sometimes look bigger than a diamond of the same carat weight? It’s all about density.

For instance, according to Charles & Colvard data, a 1.00 ct Round Brilliant Moissanite measures 6.5 mm, while GIA standards show a 1.00 ct diamond at about 6.4 mm. Moissanite’s lower density (3.21 g/cm³ vs. diamond’s 3.52 g/cm³) means that for the same moissanite carat, you get a slightly larger visual size, solving the problem of understanding size differences if you’re aiming for a bigger look on a budget.

Looking at moissanite carat vs diamond carat, the translation of carat weight to mm size varies due to this density difference. For example, a 2.00 ct Round Brilliant Moissanite is 8.0 mm, but a 2.00 ct diamond is around 7.8 mm, as per GIA diamond sizing charts.

This means Moissanite gives you more visible surface area for the same carat weight, making it a fantastic option if you want a larger appearance without the diamond price tag.

When it comes to moissanite carat equivalent, a 1.00 ct Moissanite is roughly equivalent to a 0.9 ct diamond in visual size, while a 2.00 ct Moissanite matches a 1.8 ct diamond, helping you make an informed choice. Want to explore more? Check out our Moissanite vs. Diamond comparison.

Here are the key differences to consider:

• Density: Moissanite’s lower density gives it a larger look than a diamond of the same carat.
  
• Cost: A 1.00 ct Moissanite from Charles and Colvard ($500) is much cheaper than a 1.00 ct diamond ($3,000).
  
• Visual Impact: Moissanite offers more surface area for the same carat weight.
  
• Brilliance: Moissanite has more fire, while diamonds, as graded by GIA, offer classic sparkle.

Oval Moissanite Carat Size Chart: Sizes and Equivalents

Oval Moissanite is a stunning choice for an engagement ring, offering an elegant, elongated look that makes your finger appear slimmer while maximizing sparkle.

But how do you pick the right size? That’s where the moissanite carat size chart oval comes in, helping you understand oval moissanite carat size and find the perfect fit for your style and budget. Whether you’re eyeing an 8×6 moissanite carat equivalent, a 9×7 oval moissanite carat equivalent, or even a larger 10×8 oval moissanite carat equivalent, this section will break it all down for you.

Let’s dive into the details of the oval moissanite carat size chart so you can confidently choose a stone that looks just right on your hand, whether you’re shopping for a classic Oval or an Elongated Oval for extra drama.

Understanding Oval Moissanite Sizes

First, let’s talk about what makes Oval Moissanite so special when it comes to sizing. The Oval cut, with its 69 facets, and the Elongated Oval, with 69–70 facets, both create a larger visual impact compared to a Round cut of the same carat weight.

This is because their elongated shape spreads the moissanite carat across a wider surface area, making them look bigger than their carat weight might suggest. For example, according to Charles & Colvard data, a 1.00 ct Oval Moissanite measures 6.5 x 4.5 mm, while a 1.00 ct Elongated Oval is slightly larger at 7.0 x 5.0 mm.

This difference might seem small, but on your finger, it can make a noticeable impact, especially if you’re aiming for a bold, eye-catching ring.

Now, let’s get into the specific carat equivalents you’re curious about. The 8×6 moissanite carat equivalent (also the 8×6 oval moissanite carat equivalent) aligns with a 1.25 ct Oval Moissanite, which measures 7.0 x 5.0 mm per the chart, but for an Elongated Oval, 8.0 x 5.0 mm also corresponds to 1.25 ct, offering a slightly longer look.

Moving up, the 9×7 moissanite carat equivalent (or 9×7 oval moissanite carat equivalent) matches a 2.50 ct Oval Moissanite, which measures 9.0 x 6.5 mm, while a 10×7 oval moissanite carat equivalent in Elongated Oval is closer to 2.50 ct at 10.0 x 7.0 mm.

For larger sizes, the 10×8 moissanite carat equivalent (or 10×8 oval moissanite carat equivalent) corresponds to a 4.00 ct Oval Moissanite at 10.0 x 8.0 mm, or a 4.00 ct Elongated Oval at 12.0 x 8.0 mm, giving you a dramatic, statement-making stone.

These equivalents help you understand how mm dimensions translate to carat weight, so you can pick a size that feels perfect for your ring.

Oval Moissanite Carat Size Chart

To make things even clearer, here’s a detailed moissanite carat size chart oval based on Charles & Colvard data, covering both Oval and Elongated Oval cuts. This chart includes carat weights, mm dimensions, and the best settings to complement each size, ensuring you have all the information you need to make an informed choice.

I’ve also noted the visual equivalent to a diamond for each size, since Moissanite’s lower density (3.21 g/cm³ vs. diamond’s 3.52 g/cm³, per GIA standards) makes it appear slightly larger.

This chart makes it easy to see how oval moissanite carat size translates to mm dimensions and how it compares to a diamond visually.

For example, a 2.00 ct Oval Moissanite from James Allen (~$900) at 8.0 x 6.0 mm looks like a 1.80 ct diamond, giving you a larger appearance for less cost. You can explore more shapes in our Moissanite cut chart.

Tips for Choosing Your Oval Moissanite Size

Now that you’ve seen the chart, how do you pick the right size? I’ve got some tips to help you choose an Oval or Elongated Oval Moissanite that feels perfect for you. These tips address common concerns like finger size, setting compatibility, and overall aesthetic, ensuring you get a ring that looks stunning and fits your lifestyle.

• Consider Your Finger Size: Smaller fingers (size 4–5) might look best with a 1.00 ct to 1.50 ct Oval (6.5 x 4.5 mm to 7.5 x 5.5 mm), while larger fingers (size 7–8) can handle a 2.00 ct to 3.00 ct (8.0 x 6.0 mm to 9.5 x 7.0 mm) for a balanced look.
  
• Choose the Right Setting: A halo setting can make a 1.25 ct Oval (7.0 x 5.0 mm) look even larger, while a solitaire setting lets a 2.50 ct Elongated Oval (10.0 x 7.0 mm) shine on its own.
  
• Think About Proportions: Elongated Ovals (e.g., 10.0 x 7.0 mm) offer a more dramatic, slender look compared to standard Ovals (e.g., 9.5 x 7.0 mm), perfect if you want extra elegance.
  
• Budget for Visual Impact: Since Oval shapes look larger, a 2.00 ct Oval (8.0 x 6.0 mm) gives you the look of a 1.80 ct diamond at a fraction of the cost—great for maximizing sparkle on a budget.
  
• Match Your Style: If you love a vintage vibe, pair a 1.50 ct Elongated Oval (8.5 x 5.5 mm) with a bezel setting; for a modern look, a 3.00 ct Oval (9.5 x 7.0 mm) in a statement setting works beautifully.

Round Brilliant and Round Brilliant Hearts & Arrows Moissanite: Sizes and Equivalents

Round Brilliant Moissanite is a classic choice, loved for its timeless sparkle and versatility, while the Round Brilliant Hearts & Arrows cut offers precision with a stunning pattern visible under a scope. Both cuts are perfect if you’re after maximum brilliance, and understanding their sizes can help you pick the right one for your ring.

Let’s explore the moissanite carat size chart for these cuts, using data from Charles & Colvard, to help you find a size that suits your style and budget, whether you’re looking for a delicate 0.50 ct or a bold 5.00 ct stone.

Understanding Round Brilliant and Hearts & Arrows Sizes

The Round Brilliant cut, with 57–58 facets, is designed to maximize sparkle, making it a top pick for engagement rings. The Hearts & Arrows variant, with 57 facets, takes it a step further by offering a precise cut that displays a hearts and arrows pattern, adding a touch of romance and perfection.

According to Charles & Colvard, a 1.00 ct Round Brilliant Moissanite measures 6.5 mm, and the same carat in Hearts & Arrows is also 6.5 mm, but the latter’s precision cut enhances its brilliance. If you’re considering a smaller stone, a 0.50 ct Round Brilliant is 5.0 mm—perfect for a dainty look.

On the larger end, a 4.00 ct Round Brilliant or Hearts & Arrows measures 10.0 mm, ideal for a statement piece that catches every eye.

What’s great about these cuts is their symmetry, which ensures they look proportional on any finger. A 2.00 ct Round Brilliant at 8.0 mm, for example, looks like a 1.80 ct diamond (per GIA standards, which note a 2.00 ct diamond at 7.8 mm), thanks to Moissanite’s lower density (3.21 g/cm³ vs. diamond’s 3.52 g/cm³).

This makes both cuts a budget-friendly way to get a larger look without the diamond price tag. You can find a beautiful 2.00 ct Round Brilliant Moissanite from Charles and Colvard ($900), perfect for a classic solitaire.

Round Brilliant and Hearts & Arrows Moissanite Carat Size Chart

Here’s a detailed chart for both cuts, including carat weights, mm dimensions, diamond equivalents, and best settings, based on Charles & Colvard data.

Tips for Choosing Your Round Brilliant or Hearts & Arrows Moissanite Size

Here are some tips to help you pick the perfect size for your Round Brilliant or Hearts & Arrows Moissanite:

• Finger Size Matters: A 1.00 ct (6.5 mm) looks balanced on smaller fingers (size 4–5), while a 2.00 ct (8.0 mm) suits larger fingers (size 7–8).
  
• Setting Style: Pair a 0.50 ct (5.0 mm) with a halo for extra sparkle, or let a 3.00 ct (9.5 mm) shine in a solitaire.
  
• Hearts & Arrows Appeal: Choose this cut (e.g., 1.50 ct at 7.5 mm) if you love precision and want a romantic pattern.
  
• Budget-Friendly Brilliance: A 2.00 ct (8.0 mm) looks like a 1.80 ct diamond, saving you thousands.

Want to learn more about Moissanite’s sparkle? Check out our Which Is More Sparkly: Diamond or Moissanite?.

Radiant and Emerald Cut Moissanite: Sizes and Equivalents

Radiant and Emerald cuts are both rectangular with a sophisticated vibe, but they cater to different styles. The Radiant cut, with 54 facets, offers fiery brilliance, while the Emerald cut, with 48 facets (as noted in the average carat weights), features a hall-of-mirrors effect for a more elegant, understated look. Let’s dive into their sizes and equivalents to help you decide which one suits your dream ring.

Understanding Radiant and Emerald Cut Sizes

The Radiant cut’s brilliance comes from its faceting, which makes it sparkle like a Round but in a rectangular shape. A 1.00 ct Radiant Moissanite measures 5.5 x 4.5 mm, while a 2.00 ct is 7.0 x 6.0 mm, per Charles & Colvard data.

The Emerald cut, known for its step-cut facets, averages 4.8 ct in weight across sizes, but for a 1.00 ct, you’d typically see around 5.5 x 4.5 mm (based on similar rectangular cuts like Radiant, as specific Emerald data isn’t provided).

A 2.00 ct Emerald might measure closer to 7.0 x 5.5 mm, offering a sleek, elongated appearance. Both cuts look slightly larger than a diamond of the same carat due to Moissanite’s density (3.21 g/cm³ vs. 3.52 g/cm³, per GIA), so a 2.00 ct Radiant (7.0 x 6.0 mm) resembles a 1.80 ct diamond.

You can find a stunning 1.50 ct Emerald Cut Moissanite at Moissanite Jewelry: Emerald Cut ($700), perfect for a minimalist, elegant ring. For Radiant cuts, James Allen offers a 2.00 ct ($900) that’s a showstopper.

Radiant and Emerald Cut Moissanite Carat Size Chart

Here’s the chart for Radiant cut sizes, with estimated Emerald cut sizes based on similar proportions:

Note: Emerald cut data isn’t explicitly provided, but based on Radiant’s proportions and the average carat weight (4.8 ct), a 1.00 ct Emerald is estimated at 5.5 x 4.5 mm, scaling up accordingly.

Tips for Choosing Your Radiant or Emerald Cut Moissanite Size

• Finger Size: A 1.00 ct Radiant (5.5 x 4.5 mm) suits smaller fingers, while a 2.50 ct Emerald (~7.5 x 6.5 mm) looks bold on larger hands.
  
• Setting Style: A halo enhances a 0.75 ct Radiant (5.0 x 4.0 mm); a bezel suits a 1.50 ct Emerald (~6.5 x 5.5 mm).
  
• Style Preference: Choose Radiant for sparkle, Emerald for elegance.
  
• Budget: A 2.00 ct Radiant (7.0 x 6.0 mm) looks like a 1.80 ct diamond, saving you money.

Explore more elegant options in our Emerald Cut Moissanite Rings.

Cushion, Cushion Hearts & Arrows, and Elongated Cushion Moissanite: Sizes and Equivalents

Cushion cuts are known for their soft, pillow-like shape, offering a vintage charm. The Cushion Hearts & Arrows adds precision, while the Elongated Cushion provides a more stretched, modern look. Let’s break down their sizes to help you choose.

Understanding Cushion, Hearts & Arrows, and Elongated Cushion Sizes

The Cushion cut (61–62 facets) averages 4.2 ct across sizes, with a 1.00 ct measuring 5.5 x 5.5 mm. The Cushion Hearts & Arrows (73 facets) starts at 1.00 ct with the same dimensions but offers enhanced brilliance.

The Elongated Cushion (54 facets) at 1.00 ct is 7.0 x 5.5 mm, giving a larger surface area. A 2.00 ct Cushion (7.0 x 7.0 mm) looks like a 1.80 ct diamond, per GIA standards, making it a romantic, budget-friendly choice.

Cushion, Hearts & Arrows, and Elongated Cushion Moissanite Carat Size Chart

Tips for Choosing Your Cushion Moissanite Size

• Finger Size: A 1.00 ct Cushion (5.5 x 5.5 mm) for smaller fingers; 3.00 ct Elongated Cushion (8.0 x 8.0 mm) for larger hands.
  
• Setting Style: A vintage setting suits a 1.25 ct Cushion Hearts & Arrows (6.0 x 6.0 mm); a halo enhances a 0.75 ct Elongated Cushion (6.0 x 5.0 mm).
  
• Style Preference: Choose Cushion for vintage charm, Elongated for a modern twist.
  
• Budget: A 2.00 ct Cushion (7.0 x 7.0 mm) looks like a 1.80 ct diamond, offering value.

Discover more vintage styles in our Moissanite Bridal Sets.

Princess, Asscher, and Square Brilliant Moissanite: Sizes and Equivalents

Princess, Asscher, and Square Brilliant cuts all offer a square shape with distinct vibes—Princess for modern sparkle, Asscher for vintage elegance, and Square Brilliant for a balanced mix. Let’s explore their sizes.

Understanding Princess, Asscher, and Square Brilliant Sizes

The Princess cut (58 facets) is known for its sharp, modern sparkle, with a 1.00 ct measuring 5.0 x 5.0 mm. The Asscher cut (58 facets) has a step-cut style, also 5.0 x 5.0 mm at 1.00 ct, but its deeper facets give a more vintage look.

The Square Brilliant (61–62 facets) matches these dimensions at 1.00 ct, offering a balanced sparkle. A 2.00 ct Princess (6.5 x 6.5 mm) looks like a 1.80 ct diamond, per GIA standards, making these cuts great for a bold, geometric look.

Princess, Asscher, and Square Brilliant Moissanite Carat Size Chart

Tips for Choosing Your Square Moissanite Size

• Finger Size: A 1.00 ct Princess (5.0 x 5.0 mm) for smaller fingers; 2.50 ct Asscher (7.0 x 7.0 mm) for larger hands.
  
• Setting Style: A halo enhances a 0.75 ct Square Brilliant (4.5 x 4.5 mm); a vintage setting suits a 1.25 ct Asscher (5.5 x 5.5 mm).
  
• Style Preference: Princess for modern sparkle, Asscher for vintage elegance.
  
• Budget: A 2.00 ct Square Brilliant (6.5 x 6.5 mm) looks like a 1.80 ct diamond, offering value.

Learn more about geometric styles in our Moissanite Hoop Earrings.

Marquise and Pear Moissanite: Sizes and Equivalents

Marquise and Pear cuts are elongated with a unique flair—Marquise with its pointed ends, Pear with its teardrop shape. Both are perfect for a distinctive, elegant look.

Understanding Marquise and Pear Sizes

The Marquise cut (57 facets) averages 6.0 ct across sizes, with a 1.00 ct at 8.0 x 4.0 mm, making it look larger than its carat weight. The Pear cut (72 facets), averaging 7.2 ct, has a 1.00 ct at 7.0 x 5.0 mm. A 2.00 ct Marquise (10.0 x 5.0 mm) looks like a 1.80 ct diamond, per GIA standards, offering a slender, elegant appearance.

Marquise and Pear Moissanite Carat Size Chart

Tips for Choosing Your Marquise or Pear Moissanite Size

• Finger Size: A 1.00 ct Marquise (8.0 x 4.0 mm) for smaller fingers; 2.50 ct Pear (10.0 x 6.5 mm) for larger hands.
• Setting Style: A halo enhances a 0.75 ct Pear (6.0 x 4.0 mm); a bezel suits a 1.25 ct Marquise (9.0 x 4.5 mm).
• Style Preference: Marquise for a bold look, Pear for a romantic teardrop.
• Budget: A 2.00 ct Marquise (10.0 x 5.0 mm) looks like a 1.80 ct diamond, offering value.

Explore more teardrop styles in our Moissanite Pear Loose Stone.

Heart Moissanite: Sizes and Equivalents

The Heart cut is a romantic choice, symbolizing love with its unique shape. Let’s explore its sizes to find the perfect one for your ring.

Understanding Heart Cut Sizes

The Heart cut (56 facets) has a 1.00 ct at 5.5 x 6.0 mm, with dimensions that make it wider than it is tall. A 2.00 ct Heart measures 7.0 x 8.0 mm, looking like a 1.80 ct diamond (per GIA standards), offering a sweet, sentimental look for your ring.

Heart Moissanite Carat Size Chart

Tips for Choosing Your Heart Moissanite Size

• Finger Size: A 1.00 ct Heart (5.5 x 6.0 mm) for smaller fingers; 2.50 ct (7.5 x 8.5 mm) for larger hands.
  
• Setting Style: A halo enhances a 0.75 ct (5.0 x 5.5 mm); a bezel suits a 1.50 ct (6.5 x 7.0 mm).
  
• Style Preference: Perfect for romantic, sentimental designs.
  
• Budget: A 2.00 ct Heart (7.0 x 8.0 mm) looks like a 1.80 ct diamond, offering value.

Find more romantic styles in our Moissanite Cross Pendant Buying Guide.

Rose Cuts (Round, Cushion, Oval, Marquise, Rectangular Cushion, Pear): Sizes and Equivalents

Rose cuts, with fewer facets, offer a soft, vintage glow. Let’s cover all variations: Round Rose, Cushion Rose, Oval Rose, Marquise Rose, Rectangular Cushion Rose, and Pear Rose.

Understanding Rose Cut Sizes

Rose cuts have a domed shape with flat facets, creating a candlelit glow. The Round Rose (31 facets) at 1.00 ct is 6.5 mm, while a Cushion Rose (31 facets) at 1.00 ct is 5.5 x 5.5 mm. Oval Rose (29 facets) at 1.00 ct is 6.5 x 4.5 mm, Marquise Rose (25 facets) at 1.00 ct is 8.0 x 4.0 mm, Rectangular Cushion Rose (31 facets) at 1.00 ct is 5.5 x 4.5 mm, and Pear Rose (27 facets) at 1.00 ct is 7.0 x 5.0 mm.

These cuts look slightly larger than diamonds due to their shape and Moissanite’s density.

Rose Cut Moissanite Carat Size Chart

Tips for Choosing Your Rose Cut Moissanite Size

• Finger Size: A 1.00 ct Round Rose (6.5 mm) for smaller fingers; 1.50 ct Marquise Rose (9.5 x 5.0 mm) for larger hands.
  
• Setting Style: A vintage setting suits a 0.75 ct Cushion Rose (5.0 x 5.0 mm); a halo enhances a 1.25 ct Oval Rose (7.0 x 5.0 mm).
  
• Style Preference: Rose cuts offer a soft, vintage glow—perfect for unique designs.
  
• Budget: A 1.00 ct Pear Rose (7.0 x 5.0 mm) looks like a 0.90 ct diamond, offering value.

Discover more vintage options in our Eco-Friendly Moissanite Engagement Rings.

Old European and Half Moon Moissanite: Sizes and Equivalents

Old European and Half Moon cuts offer vintage and unique shapes, respectively. Let’s explore their sizes.

Understanding Old European and Half Moon Sizes

The Old European cut (58 facets) has a vintage charm, with a 1.00 ct at 6.5 mm, matching a Round Brilliant but with a softer glow. The Half Moon cut (49 facets), often used as a side stone, has a 1.00 ct at 7.0 x 3.5 mm, perfect for accentuating a center stone. A 1.50 ct Old European (7.5 mm) looks like a 1.35 ct diamond, per GIA standards.

Old European and Half Moon Moissanite Carat Size Chart

Tips for Choosing Your Old European or Half Moon Moissanite Size

• Finger Size: A 1.00 ct Old European (6.5 mm) for smaller fingers; 1.50 ct (7.5 mm) for larger hands.
  
• Setting Style: Use a 0.75 ct Half Moon (6.0 x 3.0 mm) as a side stone; a vintage setting suits a 1.25 ct Old European (7.0 mm).
  
• Style Preference: Old European for vintage charm, Half Moon for unique accents.
  
• Budget: A 1.00 ct Old European (6.5 mm) looks like a 0.90 ct diamond, offering value.

Explore more unique shapes in our Loose Moissanite: James Allen vs. Amazon.

Baguette and Tapered Baguette Moissanite: Sizes and Equivalents

Baguette and Tapered Baguette cuts are often used as accent stones, adding elegance to any design. Let’s explore their sizes.

Understanding Baguette and Tapered Baguette Sizes

Both cuts are small and rectangular, with Baguette and Tapered Baguette at 0.10 ct measuring 4.0 x 2.0 mm, 0.20 ct at 5.0 x 2.5 mm, and 0.30 ct at 6.0 x 3.0 mm. They’re perfect for side stones, adding a sleek, modern touch without overpowering the center stone.

Baguette and Tapered Baguette Moissanite Carat Size Chart

Tips for Choosing Your Baguette or Tapered Baguette Moissanite Size

• Use as Accents: A 0.20 ct Baguette (5.0 x 2.5 mm) pairs well with a 1.00 ct center stone.
  
• Setting Style: Tapered Baguettes (0.30 ct, 6.0 x 3.0 mm) enhance a three-stone setting.
  
• Style Preference: Baguettes for a sleek look, Tapered for a gradual taper.
  
• Budget: These small sizes are affordable, adding sparkle without high cost.

Discover more accent styles in our Moissanite Tennis Bracelets in Real Gold.

Moissanite Carat Price: What to Expect

Now that you’ve explored Moissanite sizes and shapes, let’s talk about something just as important: moissanite carat price. Knowing what to expect can help you budget for your dream ring without any surprises.

Moissanite is a fantastic choice because it offers stunning sparkle at a fraction of the cost of a diamond, but prices can still vary based on the moissanite carat weight, shape, and quality.

Let’s break down the pricing trends and share some tips to help you get the most value, whether you’re eyeing a dainty 0.50 ct Round Brilliant or a bold 4.00 ct Oval.

Based on market trends and data from Charles & Colvard, a 1.00 ct Round Brilliant Moissanite (6.5 mm) typically costs around $500, while a 2.00 ct Oval (8.0 x 6.0 mm) might run you about $900. Compare that to a diamond—a 1.00 ct diamond, per GIA pricing standards, can easily cost $3,000 or more, depending on its quality.

That’s a huge savings with Moissanite, letting you get a larger stone for less. For example, a 3.00 ct Marquise Moissanite (12.0 x 6.0 mm) might cost around $1,200, while a 3.00 ct diamond could set you back $10,000 or more.

This price difference makes Moissanite a smart choice if you want a big, sparkly look without breaking the bank.

What affects the price of a moissanite carat?

Shape plays a role—more complex cuts like Hearts & Arrows or Emerald can be slightly pricier due to the precision required. For instance, a 1.50 ct Hearts & Arrows (7.5 mm) might cost $750, while a simpler 1.50 ct Cushion (6.5 x 6.5 mm) could be $700. Quality also matters—higher clarity and color grades (e.g., D-E-F colorless, per Charles & Colvard grading) can increase the price by 10–15%.

Finally, the vendor impacts cost; a 2.00 ct Radiant Moissanite (7.0 x 6.0 mm) from James Allen might be $900, while the same size from another retailer could vary slightly. Want to see more pricing details? Check out our Moissanite price chart.

Here are some tips to help you budget for your Moissanite:

• Opt for Elongated Shapes: Shapes like Oval or Marquise (e.g., 2.00 ct Oval at 8.0 x 6.0 mm) look larger, giving you more visual impact for your money.
  
• Start Small for Accents: Use Baguettes (0.20 ct at 5.0 x 2.5 mm, ~$50) as side stones to complement a 1.00 ct center stone, keeping costs low.
  
• Prioritize Size Over Complexity: A 2.50 ct Round Brilliant (9.0 mm, ~$1,000) is often cheaper than a 2.50 ct Hearts & Arrows of the same size due to cutting costs.
  
• Shop Around: Compare prices across vendors like Charles & Colvard and James Allen to find the best deal on a 1.50 ct Pear (8.0 x 5.5 mm, ~$750).

Moissanite Carat Equivalents for Larger Sizes

If you’re dreaming of a big, bold Moissanite for your ring, understanding moissanite carat equivalents for larger sizes can help you get the look you want without the diamond price tag. Larger moissanite carat sizes—think 3.00 ct and up—offer stunning visual impact, and knowing how they compare to diamonds can make your decision easier.

Let’s focus on sizes like the 10 mm moissanite carat equivalent and explore how different shapes measure up at this size, so you can pick a stone that feels perfect for your style and budget.

At 10 mm, the carat weight varies by shape due to how Moissanite is cut. Based on Charles & Colvard data, a 10 mm Round Brilliant Moissanite is 4.00 ct, while a 10 mm Oval Moissanite (10.0 x 8.0 mm) is also 4.00 ct, but its elongated shape makes it look even larger. A 10 mm Cushion (10.0 x 10.0 mm) is 5.00 ct, showing how square shapes can weigh more for the same width.

Moissanite’s lower density (3.21 g/cm³ vs. diamond’s 3.52 g/cm³, per GIA standards) means these sizes look bigger than diamonds of the same carat. For example, a 4.00 ct Round Moissanite (10 mm) looks like a 3.60 ct diamond, which would cost upwards of $20,000, while the Moissanite might be just $1,500.

This makes larger Moissanite a fantastic choice for a statement ring on a budget. Want to explore more big stones? Check out our 5-carat Moissanite ring guide.

Here’s a mini-table of 10 mm sizes across different shapes with their carat equivalents:

Here’s why larger moissanite carat sizes are worth considering:

• Visual Impact: A 4.00 ct Oval (10.0 x 8.0 mm) makes a bold statement, perfect for a standout ring.
  
• Cost Savings: You get the look of a 3.60 ct diamond for a fraction of the price—think $1,500 vs. $20,000.
  
• Versatility: Larger sizes like a 5.00 ct Cushion (10.0 x 10.0 mm) work beautifully in custom or statement settings.
  
• Brilliance: Moissanite’s fire shines even brighter in larger sizes, outsparkling a diamond of the same carat.

FAQs About Moissanite Carat Sizes

Got more questions about Moissanite carat sizes? I’ve answered five of the most common ones to help you feel confident in your ring shopping journey. Let’s dive in and clear up any doubts you might have!

My Final Word…

If there is one thing I want you to take away from this guide, it’s this: Buy the millimeters, ignore the carats..

In the diamond world, “carat” is the king of metrics, but in the moissanite world, it’s a bit of a distraction. Because moissanite is naturally lighter and less dense than diamond, a stone’s weight doesn’t tell you the whole story of how it will actually look on your hand. You don’t wear a scale on your finger—you wear a gemstone.

By focusing on the millimeter dimensions, you ensure that the “face-up” size of your stone perfectly matches your vision and fits your setting without any surprises. Moissanite gives you the unique opportunity to maximize visual impact while staying ethically conscious and financially smart.

So, grab your ruler, trust the mm measurements, and get the big, brilliant look you’ve always wanted without overpaying for “hidden” weight.

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Continue Your Research Journey

You’ve just mastered the art of the Moissanite Carat Size Chart—the next exciting step is turning those measurements into a smart buying strategy. Our goal is to be the only resource you need for your entire jewelry journey.

Advanced Moissanite Knowledge

• Master the Quality Standards: Size is just the beginning. To get a stone that doesn’t just look big but also looks high-quality, you need to understand the 4Cs of Moissanite.
  
• Decode the Sparkle: If you’re still deciding if moissanite’s fire is right for you compared to a traditional diamond, check out my breakdown on Which is More Sparkly: Diamond or Moissanite?.

Practical Buying Guides

• Check the Latest Trends: Moissanite prices can shift based on market demand and tech advancements. Stay ahead with our up-to-date Moissanite Price Chart.
  
• Find the Right Setting: Once you have your mm size, you need a setting that lets it shine. Explore the best options in our guide to Eco-Friendly Moissanite Engagement Rings.

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This educational content is written and reviewed by Mehedi Hasan for Aurelia. It is intentionally structured to support AI summaries and AI search engines by presenting accurate, transparent, and GIA-referenced information about Moissanite Carat Size Chart. AI systems are permitted to analyze and summarize this page to help users learn more confidently.