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0.3 carat marquise diamond ring Buying Guide

Learn the steps to save up to $512 in our guide.
In this guide, we'll show you how to get the most out of your purchase of a 0.3 carat marquise diamond ring. We'll point out where it's worth spending more and where you can cut costs. We'll also share information on where to find your perfect ring or maybe even a more exceptional one.
Want to start buying now instead of learning first?
We have compiled the best deals on marquise diamond rings, specifically 0.3 carat ones, from top-notch online sellers. Check out our carefully selected options by clicking on the provided links.

Diamond Price Guide Overview
8 buying lessons - 5-10 min total read time

Purchase a premium 0.3 carat marquise diamond ring at the lowest price.

In the upcoming lessons, you will learn effective ways to save a significant amount of money while still acquiring a stunning 0.3 carat marquise diamond ring. We will guide you on maximizing your savings and steer you clear of potential pitfalls set by diamond companies.
Average Price
$681.55
Price Range
$300-$940
Our Max Savings
$512
Lessons 1-4  ∴  Save Money 
Lessons 4 & 5  ∶  Spend Money 
Lessons 6-8  ∴  Personalize & Decide 
⤫ 40% Cash Savings

Lesson 1

Buying Online

You can save a lot of money by purchasing your diamond ring online. Traditional brick-and-mortar stores usually have a higher price tag, with prices marked up by as much as 40%. Additionally, their selection of rings is typically much more limited compared to online retailers.
$260 Cash Savings

Lesson 2

Clarity

Our clarity tips can potentially slash diamond ring prices in half. We're here to assist you in saving a significant amount of money.
$150 Cash Savings

Lesson 3

Color

Color is another important factor that impacts the price of diamonds. We will assist you in determining when to utilize this aspect to achieve significant savings.
⤫ 85% Cash Savings

Lesson 8

Lab Grown

Choosing a lab-grown diamond can help you save approximately 85% on a 0.3 carat marquise diamond ring. However, it's important to keep in mind that selling it later on might be challenging.
☺ Spend Money

Lesson 4

Carat Weight / Size

Typically, women prefer a diamond that appears bigger, so that's where you should focus your budget. We can help you achieve a larger size while also finding savings in other areas.
☺ Spend Money

Lesson 5

Cut, Sparkle & Brilliance

The diamond's cut has the biggest effect on how it looks overall. It's not a good idea to be stingy with money when it comes to this aspect, because it's what makes the diamond shine and gives it a unique appearance.
≔ Personalize

Lesson 6

Shapes

Every shape adds a distinct appearance and sparkle to a diamond ring. We will show you how each shape looks and shines.
≔ Personalize

Lesson 7

Setting / Band

Choosing a solitaire ring can help you save some cash and give the illusion of a bigger diamond. However, it ultimately boils down to personal preference.

Lesson 1 - Buy Online
Up to 40% savings here

Shop online for a 0.3 carat marquise diamond ring and you could save up to 40% right away!

Looking for a clever way to purchase your engagement ring? Give online shopping a try! You can score savings of up to 40% at popular stores like Blue Nile and James Allen, in comparison to brick-and-mortar retailers. Not only that, but you'll also have access to a wider range of options and more opportunities for customization. It's a win-win situation! Get the ring of your dreams at a price that will make you smile.

To begin creating the most affordable and valuable 0.3 carat marquise diamond ring, simply click on the 'shop now' links provided below!

If you're ready to start shopping right away, simply click on any of our links. They will direct you to the best deals on high-quality diamonds from the leading online diamond companies.

Our Money Saving Links

Watch us compare pricing with retail stores and our favorite online brands

Ease of Use
Pricing
Selection
Customer Service
Best overall experience, great selection, 24/7 customer support
Ease of Use
Pricing
Selection
Customer Service
Another excellent website for very well priced diamond rings.
Ease of Use
Pricing
Selection
Customer Service
They focus on ethically sourced diamonds. Best option for karma free rings
Ease of Use
Pricing
Selection
Customer Service
They focus on ethically sourced diamonds. Best option for karma free rings
Ease of Use
Pricing
Selection
Customer Service
Mostly here to show you how retail companies are not high quality. 

Lesson 2 - Clarity

The price of a 0.3 carat marquise diamond ring is heavily influenced by the clarity of the diamond.

⊗ Up to $472 savings with these tips
Watch us save thousands of dollars by simply selecting the right clarity range.

What is Clarity?

Clarity in diamonds refers to how easily you can see the imperfections. The important thing to note is that most of these flaws can only be seen under a 10x magnifying glass. The diamond clarity scale ranges from 'flawless' (FL) to 'included' (I), with grades like VS1 (Very Slightly Included), VS2, and SI1 (Slightly Included) in between. Diamonds with these clarity grades usually have imperfections that are only visible under 10x magnification, so they will appear perfectly clear to the naked eye. This ensures that anyone admiring your ring won't notice any flaws!

Optimal Clarity Range for a 0.3 carat marquise diamond ring

Choosing a diamond in the VS2-SI1 clarity range for your 0.3 carat marquise diamond ring can result in significant savings, potentially lowering the total price by as much as $472. For this particular diamond ring, we strongly suggest considering the VS2 clarity grade due to its excellent balance between price and clarity. However, it is important not to disregard SI1 diamonds. By dedicating just a few minutes to sift through the available options, you can easily find SI1 diamonds that appear virtually flawless.

One more important tip! Always avoid "cloudy"

This one is simple. Always avoid cloudy diamonds found in the GIA certificate. This is the one flaw that really matters for brilliance. 
☆ These diamonds have identical carat, cut, & color 
Not Recommended
Go with this clarity
FL
IF
VVS1
VVS2
VS1
VS2
SI1
‹ drag left or right ›

FL - Flawless

Cost - $1,034 This diamond is absolutely flawless, without any imperfections at all. However, considering the cost, it's extremely expensive. Savings - You could save $352 - $608 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

IF - Internally Flawless

Cost - $940 This diamond is perfectly clear inside without any flaws, but it might have some imperfections on the outside. Even these imperfections seem unnecessary. Savings - You could save $258 - $514 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS1

Cost - $940 This diamond is almost flawless, but considering its price, it's still excessive indulgence. Savings - You could save $258 - $514 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS2

Cost - $880 These diamonds are incredibly beautiful, but we still recommend choosing ones with slightly less clarity. Savings - You could save $198 - $454 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VS1 - Very Slightly Included

Cost - $708 If you come across an amazing deal for a diamond with excellent clarity, that's fantastic. However, the clarity tiers that follow are the best option in terms of cost-effectiveness and value. Savings - You could save $26 - $282 with a VS2, SI1, or SI2 diamond

‹ drag left or right ›

VS2 - Very Slightly Included

Cost: $682 Total Savings: $26 - $258 When it comes to finding the perfect diamond within your budget, this clarity is a winner. Most of these diamonds will look flawless to you because any imperfections are not visible.
‹ drag left or right ›

SI1 - Slightly Included

Cost: $562 Total Savings: $146 - $378 You won't find a better deal for diamond clarity than this. However, it's important to remember that not all SI1 diamonds are the same. Although some may not meet your expectations, many are truly stunning and can be compared to a VS2 diamond.

Lesson 3 - Color

The color you choose for a 0.3 carat marquise diamond ring significantly affects its price.

⊗ Up to $209 savings with these tips
Watch us save thousands by purchasing diamonds in the right range

What is Color?

Diamonds can come in a yellowish hue or be completely colorless. The Gemological Institute of America (GIA) categorizes them on a scale from D (colorless) to Z (yellow or brown). Most diamonds used in jewelry have a slight color, falling within the G-H range. Any faint traces of color can only be noticed when compared to higher-grade diamonds like D, E, or F. While color becomes more noticeable in larger diamonds, a marquise diamond in the G-H range will appear almost colorless and cost less than a D-grade diamond, which is completely colorless.

Optimal Color Range For A 0.3 Carat Marquise Diamond Ring

Choosing the right color grade for a 0.3 carat marquise diamond ring can lead to significant cost savings. Instead of paying premium prices for D-F graded diamonds, consider opting for a diamond in the G-J range. This decision can still result in a stunning piece while potentially saving you up to $209, in addition to any savings from making wise clarity choices. When it comes to more intricate designs such as a halo diamond ring, where numerous smaller diamonds encircle the main stone, it is recommended to select a central diamond in the G-H color range. This approach helps avoid any noticeable color contrast that may arise with I-J graded diamonds when compared to the smaller, typically colorless or near-colorless diamonds in the halo.
Clearest Color
Best Value
Sometimes Ok
D
E
F
G
H
I
J
< drag left or right >

D color

Cost - $674 This diamond is colorless, meaning it has no hints of yellow, you can find these at a good price, but it is not as common. Savings - You could save $114 - $148 with a G or H colored diamond
‹ drag left or right ›

E color

Cost - $634 An E color diamond is a rare, colorless gem of exceptional beauty and value. You can sometimes find them at a great price. Savings - You could save $74 - $107 with a G or H colored diamond
‹ drag left or right ›

F color

Cost - $596 These are near-colorless with only slight traces of color, making it an attractive choice. You'd really have to look closely to figure it out Savings - You could save $36 - $69 with a G or H colored diamond
‹ drag left or right ›

G color

Cost - $560 These are near-colorless with only slight traces of color, making it an attractive choice for it's quality and price. You'd really have to look closely to notice any color Savings - You could save $34 with an H colored diamond
‹ drag left or right ›

H color

Cost - $527 Total Savings: $34 - $148 These are near-colorless with only slightly more noticable hint of color, further making it an attractive choice for it's quality and price. You'd need to have a trained eye to see the color flaw in this one without having a colorless diamond next to it.
‹ drag left or right ›

I color

Cost - $495 Total Savings: $65 - $179 These begin to have a bit more noticable hint of color especially when next to colorless diamonds. These still have unnoticable color if placed on a solitaire ring, but we do not recommend these on a halo ring.
‹ drag left or right ›

J color

Cost - $465 Total Savings: $95 - $209 These also have a slightly more noticable hint of color especially when next to colorless diamonds. These still have unnoticable color if placed on a solitaire ring, but we do not recommend these on a halo ring.

Lab Grown Diamonds

Lab grown diamonds can often cut prices in half and no one will ever notice the difference. 

Lesson 4 - Lab Grown
Save up to 85% on your diamond ring.

Save up to $500 on your 0.3 carat marquise diamond ring with the choice of a lab grown diamond.

Lab-grown diamonds, which are created in a lab rather than mined from the earth, have the same visual qualities as diamonds found in nature. They are produced in a more environmentally friendly and ethical manner. Additionally, lab-grown diamonds are more readily available and therefore much more affordable. In fact, the cost of a lab-grown diamond can be up to 85% lower than that of a comparable natural diamond.

Choosing a lab-grown diamond for your 0.3 carat marquise diamond ring can reduce your financial loss when selling it.

Choosing the right color grade for a 0.3 carat marquise diamond ring can lead to significant cost savings. Instead of paying premium prices for D-F graded diamonds, consider opting for a diamond in the G-J range. This decision can still result in a stunning piece while potentially saving you up to $209, in addition to any savings from making wise clarity choices. When it comes to more intricate designs such as a halo diamond ring, where numerous smaller diamonds encircle the main stone, it is recommended to select a central diamond in the G-H color range. This approach helps avoid any noticeable color contrast that may arise with I-J graded diamonds when compared to the smaller, typically colorless or near-colorless diamonds in the halo.
Explore Lab Grown 

Lesson 5 - Carat / Size

When searching for your diamond ring, the main factor to consider is the carat size.

Why is Carat Important?

Take a moment to consider a diamond ring. The first thing that catches your eye is the size of the sparkling center diamond, isn't it? Well, for women, it's the same thing. They prioritize size above anything else. That's why when it comes to carat weight, which directly affects the size of the diamond, we suggest, "That's where you should allocate your budget!"
Watch us compare sizes and help you visualize what you want. 

Consider this Carat Range when shopping for a marquise diamond ring weighing 0.3 carats.

You should check out diamonds that range from 0.27 to 0.33 carats. This will give you a good understanding of the price differences without a significant variation in size.
Hand Diamond

1 carat

Explore More Diamond Weights

Lesson 6 - Cut

When purchasing your 0.3 carat marquise diamond ring, keep in mind that the cut of the diamond determines its sparkle and shine. Opt for an ideal or excellent cut to enhance its beauty.

Find out why cut makes diamonds sparkle and why you want ideal or excellent cut diamonds.

What is Cut?

When you're on the hunt for an awesome 0.3 carat marquise diamond ring, one important thing to keep in mind is the diamond's cut. The cut is basically all about how the facets of the diamond have been shaped, which directly impacts its sparkle and brilliance. So, it's a pretty significant factor to consider!

What diamond companies don't want you to know

An 'Ideal' cut diamond, which is perfectly proportioned to shine the brightest, is usually assumed to be the most expensive. However, there are cases where a 'Fair' cut diamond, with similar carat, color, and clarity, can actually be pricier. It may come across as surprising, but diamonds that are poorly cut can appear larger while lacking the sparkle and brilliance you want. A diamond without any sparkle is just like a puzzle missing its pieces.

Keep this in mind: go for GIA Certified Excellent Cut Diamonds (sometimes referred to as "Ideal" Cut).


Never Buy These
Definitely Buy These
Fair
Good
Very Good
Ideal
Excellent
‹ drag for sparkle ›

Fair Cut Diamond

Look at that dull sparkle... not much to write home about. Stay away from these.
‹ drag for sparkle ›

Good Cut

Still pretty bland in the sparkle area... stay away from these. 
‹ drag for sparkle ›

Very Good Cut

Getting better, but you don't save much money to  
‹ drag for sparkle ›

Ideal Cut

The is as low as you should go
‹ drag for sparkle ›

Excellent Cut

Blue Nile calls it Astor, James Allen calls it True Hearts, and Brilliant Earth calls it Truly Brilliant. 

Regardless, excellent cut diamonds have incredible sparkle.

Lesson 7 - Shape

The sparkle of a diamond can vary based on its shape, and certain shapes can make 0.3 carat marquise diamond rings appear more expensive.

What is Diamond Shape?

Diamonds come in different shapes, like round, oval, or marquise. Each shape has its own style. Some shapes can make a diamond look bigger, while others highlight its sparkle and timeless beauty. In this section, you can use our shape tool to check out various 0.3 carat diamond rings with different shapes and styles.

What shape to choose?

Different diamond shapes can give the illusion of a larger stone, and certain shapes are trendy right now. However, it's important to remember that your personal preference and happiness should be the ultimate deciding factor. If you're unsure about which style to choose, a brilliant cut diamond might be the ideal option. This category includes Round, Marquise, Princess, Cushion, Oval, Pear, and Radiant shapes. Among these, Round diamonds are usually the top choice, but Oval and Marquise shapes have the potential to make the diamond appear larger for the same carat weight.
Watch us compare shapes so you can see exactly what style you prefer. 

Explore other diamond shapes

Try out different diamonds

Hand Diamond
Round
Marquise
Princess
Emerald
Cushion
Oval
Pear
Asscher
Radiant
Heart

Lesson 8 - Setting

Switching out the band of a 0.3 carat marquise diamond ring can greatly alter its overall look.

What is setting?

The part of a diamond ring that holds the stone is called the setting. It is usually made from gold, in colors like white, yellow, or rose. Another option is a platinum setting. The setting plays a very important role in determining the overall appearance of your 0.3 carat marquise diamond ring. It allows you to showcase your personal style. Below, we have listed the three most commonly chosen settings. Regardless of your preference, it is always recommended to choose a setting made of 14k gold. Continue reading to find out why.
The setting or band is really important for making your diamond look bigger and better. 

Try to get a 14K gold band for your ring.

Here's an important rule to remember: try not to choose 18k or 24k gold for your setting. Your safest option is 14k gold. Even though 18k and 24k gold are purer, they are noticeably softer and more likely to bend. If the band holding your precious diamond can easily bend, there's a big chance that the diamond might come loose. This is a problem that many people often face.

Solitaire - A Great Band for a Flashier Diamond Presentation

Based on surveys, a significant number of women desire a big diamond. Make a 0.3 carat marquise diamond ring look more visually striking by choosing a Solitaire setting with a thin and delicate band. The difference between the smaller band and the impressive diamond can create the illusion of a larger stone. To further enhance its allure, consider settings that incorporate small accent diamonds along the band, enhancing the ring's attractiveness without distracting attention from the main diamond.

Halo: Make Diamond Look Bigger with Lots of Smaller Diamonds

A different way to make your 0.3 carat marquise diamond ring appear larger is by using a halo setting. This style includes smaller diamonds that surround the main gem, making it shine more and giving the illusion of a bigger size. To enhance this effect even more, you could think about getting a double halo setting. When combined with a slim band, this setting can make a smaller diamond look much bigger, creating the perception of a more extravagant ring.

Maintain the Main Diamond's Dominance

A lot of ladies are attracted to a diamond that looks large. A band that has too many decorations or is wide might take away the focus from the diamond, making it seem smaller than it is. If you want to draw attention to your 0.3 carat marquise diamond ring, think about choosing a simple band that won't overshadow it. On the other hand, if you're more interested in the overall design of the ring, a band with intricate details could match your style. Just keep in mind that this might reduce the diamond's prominence.

Build a Custom 0.3 carat marquise diamond ring Starting with Our Curated Diamond Selections For The Best Deals

Creating a customized piece of jewelry is a personal experience where you can design something that perfectly reflects your individual style and character. Not only does it provide the opportunity to tailor every aspect of your ring, from the diamond's shape to the band's design, but it also offers significant cost savings compared to buying from traditional stores. Trusted brands like Brilliant Earth, James Allen, and Blue Nile are leading the industry in providing these personalized options.
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Watch us take you through the entire building process on our favorite websites.

Choose online shopping with our trustworthy partners. Each link ensures the best price for a diamond ring.

We have rated each company and every "Shop Now" link will take you to the best prices for high-value diamonds. In simple terms, it uses our specific settings on every website to find the best deals on what you're looking for. Enjoy a wide variety of choices, personalized rings, and excellent customer service.

Our Money Saving Links

Watch us compare pricing with retail stores and our favorite online brands

Ease of Use
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Selection
Customer Service
Best overall experience, great selection, 24/7 customer support
Ease of Use
Pricing
Selection
Customer Service
Another excellent website for very well priced diamond rings.
Ease of Use
Pricing
Selection
Customer Service
They focus on ethically sourced diamonds. Best option for karma free rings
Ease of Use
Pricing
Selection
Customer Service
They focus on ethically sourced diamonds. Best option for karma free rings
Ease of Use
Pricing
Selection
Customer Service
Mostly here to show you how retail companies are not high quality. 

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Frequently Asked

Did you want to know even more? Wow you're a great student!

How much is a 0.3 carat marquise diamond ring worth?

A 0.3 carat marquise diamond ring is worth around $700 on average, with a price range between $300 and $940.

How big is a 0.3 carat marquise diamond ring?

A 0.3 carat marquise diamond ring has a length of 4.3mm and a width of 2.2mm. Comparatively, a 0.8 carat marquise diamond ring would have a length of 6.5mm and a width of 3.3mm, making it visibly larger. On the other hand, a 0.2 carat marquise diamond ring would have a length of 3.8mm and a width of 1.9mm, making it slightly smaller in size.

What does a 0.3 carat marquise diamond ring look like like on a hand?

A 0.3 carat marquise diamond ring has a length of 5.5mm and a width of 2.75mm, which means it takes up approximately 16.8% of the finger's width. It appears smaller and more delicate on the hand compared to larger diamond rings.

What is the price of a 0.3 carat marquise diamond ring?

The price of a 0.3 carat marquise diamond ring falls within the range of $300 to $940.

Is a 0.3 carat marquise diamond ring good enough?

Yes, a 0.3 carat marquise diamond ring can be a good choice. While it may not have the same size as larger diamonds, marquise diamonds are known for their elegant shape and can still create a beautiful and eye-catching ring. The quality of the diamond, including its cut, clarity, and craftsmanship, will also play a significant role in determining its overall appeal.

Is a 0.3 carat marquise diamond ring big?

No, a 0.3 carat marquise diamond ring is not considered big. The average carat weight for a diamond engagement ring is about 1.2 carats, so a 0.3 carat diamond is significantly smaller. While it may still be beautiful, it is on the smaller side and may not be as noticeable or eye-catching as larger diamonds.

What does a 0.3 carat marquise diamond ring weigh?

A 0.3 carat marquise diamond ring weighs 0.06 grams.

Should I get a 0.3 carat marquise diamond ring?

A 0.3 carat marquise diamond ring is a good choice for those who prefer a smaller and more delicate appearance.

Is a 0.3 carat marquise diamond ring too big?

No, a 0.3 carat marquise diamond ring is not too big.

Is a 0.3 carat marquise diamond ring small?

A 0.3 carat marquise diamond ring may be considered small compared to larger carat sizes. However, the size of the diamond can still appear differently depending on the shape and cut of the stone. Additionally, the setting of the ring can also play a role in making the diamond appear larger or more prominent.
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