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0.4 carat princess cut diamond ring Buying Guide

Let our guide show you how to save a whopping $840.
With this guide, our goal is to assist you in maximizing your budget while purchasing a 0.4 carat princess cut diamond ring. We will point out the worthwhile options for your money, as well as offer insider advice on where to find your ideal ring, or perhaps an even superior one.
Eager to buy and skip the lessons?
We have carefully selected the best deals on 0.4 carat princess cut diamond rings from top online retailers. Take a look at our recommendations through the provided links.

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

Purchase a premium 0.4 carat princess cut diamond ring at the lowest price.

In the upcoming lessons, we will teach you how to maximize the size and shine of your 0.4 carat princess cut diamond ring without breaking the bank. Additionally, we will guide you on how to avoid being deceived by diamond companies.
Average Price
$683.22
Price Range
$420-$1,470
Our Max Savings
$840
Lessons 1-4  ∴  Save Money 
Lessons 4 & 5  ∶  Spend Money 
Lessons 6-8  ∴  Personalize & Decide 
⤫ 40% Cash Savings

Lesson 1

Buying Online

You will discover that diamond rings are much more affordable when purchased online. On the other hand, retail stores can be 40% pricier and offer only a limited selection to choose from.
$780 Cash Savings

Lesson 2

Clarity

You can save up to 50% on diamond rings with our clarity tips. Our goal is to help you save money by providing guidance on making smart choices.
$150 Cash Savings

Lesson 3

Color

The color of a diamond is a major factor in determining its price. We're here to help you understand how to use this knowledge to save the most money.
⤫ 85% Cash Savings

Lesson 8

Lab Grown

Lab-grown versions of a 0.4 carat princess cut diamond ring can save you up to 85%. However, it's important to consider that these rings may not have a high resale value.
☺ Spend Money

Lesson 4

Carat Weight / Size

Because women tend to favor diamonds that appear bigger, it makes sense to invest in larger ones. We are here to assist you in maximizing the diamond's size while finding ways to save in other areas.
☺ Spend Money

Lesson 5

Cut, Sparkle & Brilliance

The cut of a diamond is the most crucial aspect that determines its overall appearance. It's essential not to skimp on this aspect since it is responsible for the diamond's brilliance and captivating appearance.
≔ 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

Choosing a solitaire ring can help you save money and give the illusion of a bigger diamond. However, personal preferences also come into play in this situation.

Lesson 1 - Buy Online
Up to 40% savings here

Buy your 0.4 carat princess cut diamond ring online and save up to 40% instantly.

Deciding to buy your jewelry online has many advantages compared to shopping at physical stores, especially when it comes to cost, variety, and personalization. Websites like Blue Nile and James Allen can offer diamonds at significantly lower prices than traditional retailers, often up to 40% less, because they don't have the same expenses for maintaining physical stores. Online stores provide a larger selection of options, giving you the chance to find the perfect diamond from a wide range of choices. They also offer more opportunities for customization, allowing you to design your own ring that perfectly matches your vision. This adds extra value and personal touch to your purchase.

Click on the 'shop now' links below to begin creating the most affordable, high-quality 0.4 carat princess cut diamond ring!

If you're in a rush and eager to begin shopping, our links will take you straight to the top deals on high-quality diamonds from the most trusted online diamond stores.

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

If you're considering buying a 0.4 carat princess cut diamond ring, remember that the diamond's clarity is the primary factor to consider in terms of pricing.

⊗ Up to $1,046 savings with these tips
Watch us save thousands of dollars by simply selecting the right clarity range.

What is Clarity?

When we talk about diamond clarity, we're basically checking if the diamond has any noticeable imperfections. But here's the catch - these flaws are usually only visible when you use a 10x magnifying glass. Diamond clarity is categorized from 'flawless' (FL) to 'included' (I), with other categories like VS1 (Very Slightly Included), VS2, and SI1 (Slightly Included) falling in between. The flaws in diamonds with these clarity ratings can usually only be seen under 10x magnification. To the naked eye, they will appear crystal clear, so anyone admiring your ring is unlikely to notice anything!

Optimal Clarity Range for a 0.4 carat princess cut diamond ring

Choosing a diamond in the VS2-SI1 clarity range for your 0.4 carat princess cut diamond ring can result in significant savings, potentially reducing the total price by as much as $1,046. Consider opting for a VS2 diamond due to its favorable combination of price and clarity. However, it is important not to underestimate SI1 diamonds - with just a few minutes of searching through the available options, you can discover diamonds that appear nearly 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 - $1,617 The diamond is perfect, without any flaws, but the price is way too high. Savings - You could save $929 - $1,118 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

IF - Internally Flawless

Cost - $1,470 This diamond is completely flawless on the inside, which means it doesn't have any imperfections within. However, there might be some flaws on its surface. Overall, this is equally excessive. Savings - You could save $782 - $971 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS1

Cost - $1,470 This diamond is almost flawless, but considering its price, it's still excessive. Savings - You could save $782 - $971 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VVS2

Cost - $960 These diamonds are really impressive and the prices are more reasonable, but we still recommend choosing a diamond with a lower clarity. Savings - You could save $272 - $461 with a VS2, SI1, or SI2 diamond
‹ drag left or right ›

VS1 - Very Slightly Included

Cost - $727 If you find an amazing deal within this range of clarity, that's great! However, the next levels of clarity offer the best combination of affordability and quality. Savings - You could save $39 - $228 with a VS2, SI1, or SI2 diamond

‹ drag left or right ›

VS2 - Very Slightly Included

Cost: $688 Total Savings: $39 - $782 These diamonds provide the highest quality and most affordable prices in terms of clarity. As an ordinary person, you won't be able to detect any flaws in the majority of these diamonds, making them appear perfect to your eyes.
‹ drag left or right ›

SI1 - Slightly Included

Cost: $571 Total Savings: $156 - $899 This diamond clarity offers the best value. However, it's important to note that not all SI1 diamonds are equal. While some may not meet your standards, many are exceptionally beautiful and can easily be mistaken for a higher grade like VS2.

Lesson 3 - Color

The color of a diamond is a major factor in determining the price of a princess cut diamond ring that weighs 0.4 carats.

⊗ Up to $213 savings with these tips
Watch us save thousands by purchasing diamonds in the right range

What is Color?

Diamonds can have a range of colors, from slightly yellowish to completely colorless. The Gemological Institute of America (GIA) rates diamonds on a scale from D (no color) to Z (yellow or brown). When it comes to jewelry, diamonds typically have a slight color and fall within the G-H range. The subtle hints of color in these diamonds can only be detected when compared to higher-grade ones, like D, E, or F. While smaller diamonds may not show color as prominently, a larger diamond in the G-H range, like a princess cut, will still appear nearly colorless. Additionally, it will be less expensive than a D-grade diamond, which is completely colorless.

Optimal Color Range For A 0.4 Carat Princess Cut Diamond Ring

Selecting the appropriate color grade for a 0.4 carat princess cut diamond ring can lead to significant cost reductions. Instead of splurging on diamonds graded D-F, consider opting for a diamond within the G-J range. By doing so, you can still acquire a stunning piece while pocketing savings of up to $213, in addition to any money saved by making wise choices regarding clarity.
Clearest Color
Best Value
Sometimes Ok
D
E
F
G
H
I
J
< drag left or right >

D color

Cost - $685 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 $116 - $150 with a G or H colored diamond
‹ drag left or right ›

E color

Cost - $644 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 $75 - $109 with a G or H colored diamond
‹ drag left or right ›

F color

Cost - $605 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 - $569 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 - $535 Total Savings: $34 - $150 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 - $503 Total Savings: $66 - $182 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 - $473 Total Savings: $96 - $213 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 0.4 carat princess cut diamond ring with a lab grown diamond.

Lab-grown diamonds, made through artificial means, possess identical visual characteristics to their naturally occurring counterparts, yet they are produced in a manner that is more environmentally friendly and morally sound. Moreover, their enhanced accessibility offers a more economical option, as a lab-grown diamond can be up to 85% less expensive than a similar naturally formed diamond.

When it comes to selling your 0.4 carat princess cut diamond ring, choosing a lab grown diamond can help reduce your financial loss.

Selecting the appropriate color grade for a 0.4 carat princess cut diamond ring can lead to significant cost reductions. Instead of splurging on diamonds graded D-F, consider opting for a diamond within the G-J range. By doing so, you can still acquire a stunning piece while pocketing savings of up to $213, in addition to any money saved by making wise choices regarding clarity.
Explore Lab Grown 

Lesson 5 - Carat / Size

When you're looking for a diamond ring, consider prioritizing your budget based on carat weight.

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: The Best Option for Your 0.4 carat princess cut diamond ring.

You may want to consider looking at diamonds that range from 0.36 to 0.44 carats. This will give you a good idea of prices without a noticeable increase in size.
Hand Diamond

1 carat

Explore More Diamond Weights

Lesson 6 - Cut

When buying your 0.4 carat princess cut diamond ring, remember that the cut of the diamond is what gives it that brilliant sparkle. Stick to ideal or excellent cut options.

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

What is Cut?

If you want to get your hands on an absolutely stunning princess cut diamond ring that weighs around 0.4 carats, then you should focus on the way it has been cut. The cut of a diamond determines how well its facets have been crafted, which ultimately affects its overall brilliance and sparkle.

The undisclosed secret of diamond companies

You'd think that a diamond with a perfect cut called 'Ideal', which has the right proportions and shines the most, would be the priciest, right? Well, that's not always true. Sometimes, a diamond with a 'Fair' cut, but with the same carat weight, color, and clarity, can actually cost more. It may not make sense at first, but diamonds with a bad cut can look bigger while lacking the shine and brilliance you want. A diamond without sparkle is like a cake without frosting, it's just not the same.

Here's a crucial tip: always opt 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

When selecting diamonds, keep in mind that different shapes offer distinct levels of sparkle, and certain shapes can create the illusion of a pricier 0.4 carat princess cut diamond ring.

What is Diamond Shape?

The shape of a diamond determines its style, such as round, oval, or princess. Certain shapes can make a diamond appear larger, while others offer more sparkle and a timeless charm. Explore our selection of 0.4 carat diamond rings featuring various shapes using our shape tool in this section.

What shape to choose?

It's important to recognize that certain diamond cuts can give off the illusion of a bigger gem, and there are some cuts that are currently in style. Nevertheless, the most important decision is the one that truly speaks to you. If you're unsure about which cut to go for, think about getting a brilliant cut diamond. This includes shapes like Round, Marquise, Princess, Cushion, Oval, Pear, and Radiant. Out of all these options, Round diamonds are the ones that get chosen most frequently, while Oval and Marquise cuts can make a diamond look bigger without increasing the 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 of a 0.4 carat princess cut diamond ring can completely change its appearance.

What is setting?

The part of a diamond ring that holds the gem, called the band, is usually made of gold, which can be white, yellow, or rose in color. Another option is a band made of platinum. The way the diamond is set greatly affects how the ring looks. For a 0.4 carat princess cut diamond ring, the setting plays a crucial role in its overall appearance. It's a chance for you to showcase your personal style. There are three common settings to choose from, and I'll explain each one below. Regardless of the setting you choose, it's always recommended to go with 14k gold. The explanation behind this will become clear as you continue reading.
The setting or band is really important for making your diamond look bigger and better. 

Make sure you choose a ring with a 14K Gold band.

Remember this important guideline. Don't use 18 karat or 24 karat gold for your setting. Go with 14 karat gold instead. Even though 18 karat and 24 karat gold are more pure, they are noticeably less durable and prone to bending. If your precious diamond's setting bends too easily, there's a significant risk of the diamond becoming loose and falling out. This is a common problem for many people.

Solitaire Setting - A Slim Band Accentuates the Look of a Larger Diamond

Based on polls, a significant number of women desire a large diamond. To make a 0.4 carat princess cut diamond ring more visually striking, choose a Solitaire setting with a thin and delicate band. The difference in size between the band and the impressive diamond can create the illusion of a bigger stone. To add extra flair, consider settings that incorporate small accent diamonds along the band. This will enhance the ring's overall beauty without diverting attention from the main diamond.

Halo: Make Your Diamond Look Bigger with a Bunch of Smaller Stones

Looking to make your 0.4 carat princess cut diamond ring appear larger? You should try a halo setting. This type of setting features smaller diamonds that surround the main gem, giving off a beautiful glow that makes the diamond appear bigger. If you really want to make a statement, consider a double halo setting. Pair it with a thin band, and your smaller diamond will appear much larger, giving the impression of a more extravagant and luxurious piece.

Ensure that the main diamond remains the center of attention.

Most women prefer their diamond to look big. An elaborate or wide band might take away from the diamond's size, making it seem smaller. If you want your princess cut diamond ring, which is 0.4 carats, to be the main attraction, a plain band would be a good option. However, if you prioritize the overall design of the ring, a more intricate band might be the way to go. Just remember, this could take away from the diamond's impressive appearance.

Build a Custom 0.4 carat princess cut diamond ring Starting with Our Curated Diamond Selections For The Best Deals

Creating a unique and personalized piece of jewelry is an exceptional experience, allowing you to design a piece that truly embodies your individual style and personality, all at a more affordable price compared to purchasing from a store. Teaming up with renowned jewelry companies such as Brilliant Earth, James Allen, and Blue Nile, you have the freedom to select every detail of your ring, from the diamond's shape to the band's design.
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

Let us help you get help by the industry leaders. When you click the button below we will help you choose where to set up your appointment.
Book Appointment

Frequently Asked

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

How much is a 0.4 carat princess cut diamond ring worth?

A 0.4 carat princess cut diamond ring is worth an average price of $700, with a price range of $420 to $1,470.

How big is a 0.4 carat princess cut diamond ring?

A 0.4 carat princess cut diamond ring has a diameter of approximately 4.8mm. This size is slightly smaller than a 0.9 carat princess cut diamond ring, which has a diameter of around 5.8mm. On the other hand, it is slightly larger than a 0.1 carat princess cut diamond ring, which has a diameter of approximately 3.8mm.

What does a 0.4 carat princess cut diamond ring look like like on a hand?

A 0.4 carat princess cut diamond ring is a smaller-sized diamond ring that has a square shape with pointed corners. When worn on a hand, it appears delicate and adds a subtle sparkle to the finger.

What is the price of a 0.4 carat princess cut diamond ring?

The price of a 0.4 carat princess cut diamond ring falls within the range of $420-$1,470.

Is a 0.4 carat princess cut diamond ring good enough?

A 0.4 carat princess cut diamond ring can be a good choice depending on personal preferences. While it may not have the same visual impact as a larger diamond, it can still be beautiful and elegant. The princess cut is known for its brilliance and modern appeal, making it a popular choice. Ultimately, the decision should be based on individual taste and budget.

Is a 0.4 carat princess cut diamond ring big?

No, a 0.4 carat princess cut diamond ring is not considered big. The average carat weight for a diamond engagement ring is about 1.2 carats, so a 0.4 carat diamond is significantly smaller. While it may still be beautiful, it is on the smaller side compared to the average size.

What does a 0.4 carat princess cut diamond ring weigh?

A 0.4 carat princess cut diamond ring weighs 0.08 grams.

Should I get a 0.4 carat princess cut diamond ring?

A 0.4 carat princess cut diamond ring is a popular choice for its smaller size, elegant shape, and versatility.

Is a 0.4 carat princess cut diamond ring too big?

No, a 0.4 carat princess cut diamond ring is not too big.

Is a 0.4 carat princess cut diamond ring small?

A 0.4 carat princess cut diamond ring may be considered small compared to larger carat sizes. However, the size of the diamond can also be influenced by the cut and shape. Princess cut diamonds tend to have a square shape, which can make them appear larger than other cuts of the same carat weight. Ultimately, the perception of whether a 0.4 carat princess cut diamond ring is small or not may vary depending on personal preferences and individual finger sizes.
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