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0.3 carat radiant cut diamond ring Buying Guide

Our guide can assist you in saving up to $568.
In this guide, we'll show you how to get the most out of your purchase of a 0.3 carat radiant cut diamond ring. We'll tell you when it's worth spending more and when you can cut costs, and we'll give you the inside scoop on where to find your perfect ring or even something even more amazing.
Ready to shop without learning?
We have gathered the top online deals for a 0.3 carat radiant cut diamond ring. Check out our choices through the links provided below.

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

Grab the lowest price for a luxury 0.3 carat radiant cut diamond ring.

These lessons will show you how to save money while purchasing a larger and more dazzling 0.3 carat radiant cut diamond ring. We'll teach you strategies to prevent overspending and avoid falling victim to deceptive practices by diamond companies.
Average Price
$531.18
Price Range
$260-$970
Our Max Savings
$568
Lessons 1-4  ∴  Save Money 
Lessons 4 & 5  ∶  Spend Money 
Lessons 6-8  ∴  Personalize & Decide 
⤫ 40% Cash Savings

Lesson 1

Buying Online

You can find better deals on diamond rings online. Retail stores can be up to 40% more expensive and have a much smaller variety to choose from.
$380 Cash Savings

Lesson 2

Clarity

Learn how to cut diamond ring prices in half with our clarity tips. Get ready to discover how to save a significant amount of money.
$150 Cash Savings

Lesson 3

Color

Color is another major factor that affects diamond prices. We will help you understand when you can save money by considering the diamond's color.
⤫ 85% Cash Savings

Lesson 8

Lab Grown

You can save a significant amount of 85% on a 0.3 carat radiant cut diamond ring by opting for lab-grown alternatives. However, it may not be practical to resell it.
☺ 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 is the most important factor in its overall appearance. It's not the place to cut corners and save money, as it is what gives the diamond its sparkle and distinctive charm.
≔ Personalize

Lesson 6

Shapes

Every shape gives a diamond ring a different look and how it reflects light. We will demonstrate the one-of-a-kind appearance and shimmer of each shape.
≔ Personalize

Lesson 7

Setting / Band

If you opt for a single stone band, you'll save money and your diamond will appear bigger. However, it's important to remember that personal preference also plays a role in making this decision.

Lesson 1 - Buy Online
Up to 40% savings here

Choose to purchase your 0.3 carat radiant cut diamond ring online and you can save up to 40% on your total cost.

Choosing to purchase your jewelry online has numerous advantages over shopping at physical retail stores, particularly in terms of affordability, variety, and the opportunity for personalization. Online retailers such as Blue Nile and James Allen can offer diamonds at significantly lower prices compared to traditional brick-and-mortar stores, often up to 40% less, thanks to reduced operational expenses. Online platforms provide a wider range of options, allowing you to easily find the perfect diamond amidst a vast selection. Additionally, these websites offer more customization choices, enabling you to create a ring that perfectly aligns with your individual preferences and style. This combination of value and customization sets online jewelry shopping apart.

Click on the shop now links below to begin building the most affordable and valuable 0.3 carat radiant cut diamond ring!

If you're ready to start shopping right away, click on our links. They will take you directly to the best deals on high-quality diamonds from the most reputable 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 pricing of a 0.3 carat radiant cut diamond ring is primarily influenced by the clarity of the diamond

⊗ Up to $503 savings with these tips
Watch us save thousands of dollars by simply selecting the right clarity range.

What is Clarity?

When we talk about clarity in diamonds, we're basically talking about how visible the flaws are. But it's important to note that most flaws can only be seen with a 10x magnifying glass. Diamond clarity is divided into categories from 'flawless' to 'included'. In the middle, you'll find designations like VS1, VS2, and SI1. These diamonds may have flaws that can only be seen under 10x magnification. To the naked eye, they look completely clear, so nobody will notice any imperfections when they admire your ring!

Optimal Clarity Range for a 0.3 carat radiant cut diamond ring

Choosing a diamond in the VS2-SI1 clarity range for your 0.3 carat radiant cut diamond ring can result in significant savings, potentially reducing the total price by up to $503. When it comes to price and clarity, we strongly advise considering the VS2 option as it offers a great balance. However, it is important not to disregard SI1 diamonds. By spending a few minutes searching through the available diamonds, you can easily find ones that appear 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 - $1,067 This diamond is flawless, without any imperfections, but considering its price, it's quite extravagant. Savings - You could save $473 - $617 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

IF - Internally Flawless

Cost - $970 The diamond is flawless on the inside, which means it has no imperfections. However, it may have some flaws on the outside. This is also a bit excessive. Savings - You could save $376 - $520 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS1

Cost - $970 This diamond is practically perfect, but considering its price, it's still excessively expensive. Savings - You could save $376 - $520 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS2

Cost - $890 These diamonds are really good, but we recommend choosing ones with slightly lower clarity since our eyes can't really tell the difference. Savings - You could save $296 - $440 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VS1 - Very Slightly Included

Cost - $506 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 $-88 - $56 with a VS2, SI1, or SI2 diamond

‹ drag left or right ›

VS2 - Very Slightly Included

Cost: $594 Total Savings: $-88 - $376 If you want to make the most of your money, this diamond clarity is unbeatable. These diamonds appear flawless to the naked eye as any imperfections are completely invisible.
‹ drag left or right ›

SI1 - Slightly Included

Cost: $564 Total Savings: $-58 - $406 This is the best option for diamond clarity at an incredibly affordable price. It's important to note that not all SI1 diamonds are the same. While some may not live up to your expectations, there are many that are absolutely stunning and could even be mistaken for a higher quality VS2 diamond.

Lesson 3 - Color

Diamond color is another significant factor in determining the price of a 0.3 carat radiant cut diamond ring when shopping.

⊗ Up to $210 savings with these tips
Watch us save thousands by purchasing diamonds in the right range

What is Color?

Diamonds can come in various shades, ranging from yellowish to completely colorless. The Gemological Institute of America (GIA) ranks diamonds on a scale from D (colorless) to Z (yellow or brown). Most jewelry diamonds have a slight amount of color and fall into the G-H category. These subtle color differences can only be detected when comparing them to higher-graded diamonds like D, E, or F. While larger diamonds may show more noticeable color, a radiant diamond in the G-H category will still appear nearly colorless and be less expensive than a D-grade diamond, which is completely colorless.

Optimal Color Range For A 0.3 Carat Radiant Cut Diamond Ring

When selecting a 0.3 carat radiant cut diamond ring, opting for the right color grade can lead to significant savings. Rather than investing in D-F graded diamonds at premium prices, consider choosing a diamond within the G-J range. By making this decision, you can still acquire a breathtaking piece while potentially saving up to $210, in addition to any savings from making informed choices regarding clarity.
Clearest Color
Best Value
Sometimes Ok
D
E
F
G
H
I
J
< drag left or right >

D color

Cost - $677 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 $115 - $148 with a G or H colored diamond
‹ drag left or right ›

E color

Cost - $636 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 - $108 with a G or H colored diamond
‹ drag left or right ›

F color

Cost - $598 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 - $70 with a G or H colored diamond
‹ drag left or right ›

G color

Cost - $562 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 - $528 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 - $497 Total Savings: $65 - $180 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 - $467 Total Savings: $95 - $210 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 $400 on your 0.3 carat radiant cut diamond ring by opting for a lab grown diamond.

Lab-grown diamonds are appealing because they look just like natural diamonds, even though they are made in a lab. What makes them even better is that they are produced in a more sustainable and ethical way. Plus, they are way more affordable than natural diamonds, with a lab-grown diamond costing up to 85% less.

Choosing the Right Diamond: Minimize Financial Loss with a Lab-Grown Option for Your 0.3 Carat Radiant Cut Diamond Ring

When selecting a 0.3 carat radiant cut diamond ring, opting for the right color grade can lead to significant savings. Rather than investing in D-F graded diamonds at premium prices, consider choosing a diamond within the G-J range. By making this decision, you can still acquire a breathtaking piece while potentially saving up to $210, in addition to any savings from making informed choices regarding clarity.
Explore Lab Grown 

Lesson 5 - Carat / Size

When buying your diamond ring, make sure to prioritize spending on carat.

Why is Carat Important?

Let's discuss diamond rings. What's the first thing that pops into your head? That's right, the size of the large sparkler in the center. When we asked women what was most important, they all agreed on one thing: size matters! The higher the carat weight, the larger the diamond, and that's where we recommend you spend a little extra!
Watch us compare sizes and help you visualize what you want. 

This carat range is your best choice if you're looking for a 0.3 carat radiant cut diamond ring.

It's a clever idea to consider diamonds in the 0.27 to 0.33 carat range. This way, you'll find a good variety of prices without needing to choose a significantly bigger size.
Hand Diamond

1 carat

Explore More Diamond Weights

Lesson 6 - Cut

The cut of a diamond is what gives it that beautiful sparkle. For your 0.3 carat radiant cut diamond ring, make sure to choose either an ideal or excellent cut.

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

What is Cut?

When it comes to a stunning diamond ring with a 0.3 carat radiant cut, the cut plays a crucial role. The way the diamond's facets are crafted contributes greatly to its shine and beauty. The precision and flawless design of these facets can really make the diamond sparkle and shine like no other.

The diamond companies well-kept secret

You'd think that a diamond with an 'Ideal' cut, crafted to give you the most sparkle with its perfect proportions, would be the priciest. But that's not always true. Sometimes, a 'Fair' cut diamond with the same carat, color, and clarity can be more expensive. It might sound confusing, but diamonds that are cut poorly can look bigger but fall short on the sparkle and brilliance that you crave. A diamond without sparkle is just like a phone without any signal.

One last thing to keep in mind: go for GIA Certified Excellent Cut Diamonds (also known 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

Diamonds come in many shapes, each with its own sparkle factor, Some of which can give the impression of a higher-priced 0.3 carat radiant cut diamond ring.

What is Diamond Shape?

The diamond shape symbolizes the style of the diamond, such as round, oval, or radiant. Different shapes can make the diamond appear bigger or add extra sparkle for a classic and timeless look. In this section, you can use our shape tool to explore various 0.3 carat diamond rings with different shapes.

What shape to choose?

It's a fact that certain diamond shapes can create the illusion of a larger stone, and currently, some shapes are seen as more fashionable. But when you're deciding, keep in mind that what really counts is what catches your eye and brings you the most joy. If you're unsure and don't have a specific preference, you might want to think about a brilliant cut diamond. This includes shapes like Round, Marquise, Princess, Cushion, Oval, Pear, and Radiant. While Round is the most popular choice, Oval and Marquise shapes can give the diamond a bigger appearance with 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

The band has the ability to transform a 0.3 carat radiant cut diamond ring into something completely distinct.

What is setting?

The metallic part of a diamond ring that holds the stone, often called the band, is called the setting. These are typically made of gold in various colors like white, yellow, or rose. Alternatively, you can choose to have a platinum band. The setting plays a vital role in the overall appearance of your 0.3 carat radiant cut diamond ring. It allows you to showcase your individual style. Below, we've outlined the three most commonly preferred settings. No matter which one you choose, it is always recommended to select 14k gold. Keep reading to find out why this is advised.
The setting or band is really important for making your diamond look bigger and better. 

Choose a 14K gold band.

Keep in mind this important rule. Avoid using 18k or 24k gold for your setting. Instead, go for 14k gold. Even though 18k and 24k gold have a higher purity, they are very soft and likely to bend. If the setting that holds your valuable diamond bends easily, there's a high chance that the diamond will fall out. This is a common problem faced by many people.

Solitaire Style - A Sleek Band Makes the Diamond Appear Bigger

According to surveys, the majority of women prefer bigger diamonds. If you want to highlight the size of a 0.3 carat radiant cut diamond ring, consider a Solitaire setting with a thin, delicate band. The difference between the slender band and the substantial diamond can create the impression of a larger stone. Including small accent diamonds along the band can add an elegant detail without detracting attention from the main diamond.

Halo: Boost Your Diamond's Volume with Many Small Gems

The halo setting provides an additional method to make your radiant cut diamond ring, which is 0.3 carats, appear bigger. By surrounding the main diamond with smaller ones, it creates a radiant effect that gives the impression of a larger diamond. If you want to make this illusion even more striking, you can choose a double halo setting. When combined with a slender band, this can make a smaller diamond look much larger, creating the illusion of a more luxurious piece.

Do not overshadow the main diamond.

Many women prefer to have a diamond that looks big and noticeable. If the band of the ring is too fancy or wide, it could take away attention from the diamond and make it look smaller. If you want your 0.3 carat radiant cut diamond ring to be the main focus, it would be smart to choose a simple, not easily noticed band. On the other hand, if you care more about how the entire ring looks, you might prefer an intricate band, but be careful because this could make the diamond less noticeable.

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

Creating a personalized piece of jewelry is an extraordinary journey, allowing you to design a unique item that truly reflects your individuality and taste, all while being more affordable compared to retail prices. With renowned companies like Brilliant Earth, James Allen, and Blue Nile, you have the chance to customize every detail of your ring, including the diamond's shape and the style of the band.
Start Building
Watch us take you through the entire building process on our favorite websites.

Feel free to make your purchase online from our reliable partners. Each link will lead you to the best deal available for a diamond ring.

We have thoroughly examined each company and made sure that every "Shop Now" link is set up to direct you to the most competitive prices for high-quality diamonds. This means that we have individually adjusted the settings on each website to assist you in finding the greatest savings on your purchase. Enjoy a diverse selection, personalized rings, and unparalleled customer assistance to enhance your shopping experience.

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. 

Virtual Appointment

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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 radiant cut diamond ring worth?

A 0.3 carat radiant cut diamond ring is worth an average of $500, with a price range between $260 and $970.

How big is a 0.3 carat radiant cut diamond ring?

A 0.3 carat radiant cut diamond ring has a diameter of 4.4mm. This size is smaller than a 0.8 carat radiant cut diamond ring, which has a diameter of 5.8mm. On the other hand, it is larger than a 0.2 carat radiant cut diamond ring, which has a diameter of 3.9mm.

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

A 0.3 carat radiant cut diamond ring appears delicate and petite on a hand. It has a width of approximately 4.3mm, occupying around 25.6% or a quarter of the finger's width.

What is the price of a 0.3 carat radiant cut diamond ring?

The price of a 0.3 carat radiant cut diamond ring falls within the range of $260-$970.

Is a 0.3 carat radiant cut diamond ring good enough?

Yes, a 0.3 carat radiant cut diamond ring can be a good choice. While it may not have the same size as larger diamonds, the radiant cut can enhance its brilliance and make it appear larger than it actually is. Additionally, the smaller carat size can make it more affordable while still maintaining a beautiful appearance.

Is a 0.3 carat radiant cut diamond ring big?

No, a 0.3 carat radiant cut 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 have as much presence on the finger.

What does a 0.3 carat radiant cut diamond ring weigh?

A 0.3 carat radiant cut diamond ring weighs 0.06 grams.

Should I get a 0.3 carat radiant cut diamond ring?

A 0.3 carat radiant cut diamond ring is a popular choice for its affordability, versatility, and elegant appearance.

Is a 0.3 carat radiant cut diamond ring too big?

A 0.3 carat radiant cut diamond ring is not considered too big.

Is a 0.3 carat radiant cut diamond ring small?

A 0.3 carat radiant cut diamond ring may be considered small compared to larger carat sizes. However, the size of the diamond can still appear substantial depending on the finger it is worn on. Additionally, certain settings or designs, such as a halo setting, can enhance the perceived size of the diamond by incorporating smaller diamonds around it.
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