The Expert Guide to Buying a 3 Carat Diamond Ring
Everything you need to know about the price and qualities of a 3 carat engagement ring
We are reader-supported. Buying through any red colored link on our site may earn us commissions. Learn More.
Everything you need to know about the price and qualities of a 3 carat engagement ring
A 3 carat diamond ring is guaranteed to turn heads. The typical engagement ring in the United States is 1 carat, so a 3 carat is definitely putting you in luxury territory. It’s like graduating from Calvin Klein to Gucci (or for non-fashionistas, like going from a Volkswagen to a BMW). As long as you find a balance between value and quality that 3 ct engagement ring will truly be the center of attention.
How much does a 3 carat diamond cost?
How large is a 3 carat diamond?
What is the size of each 3 carat diamond shape?
Where should I buy a 3 carat diamond ring from?
Tips to buy a good 3 carat diamond
What style 3 carat engagement ring should I get?
FAQs about 3 carat diamond rings
Bottom line recommendation
A good quality 3 carat diamond will cost you between $33,500 and $44,000 depending on the shape. 3 ct diamond prices on the high or low end of the quality spectrum can vary from $20,000 to $125,000. The cost of a 3 carat diamond engagement ring depends on a number of factors including cut quality, clarity, color, and shape. You can check out the price differences across different carat weights using our diamond value calculator. We will go over how to find the sweet spot when balancing size and quality.
|The Lower End
Diamond prices historically rise at a slow and steady pace, with occasional surges and dips. At the beginning of 2023, we are seeing a dip in prices and demand. That makes sense given the surge of 2021-2022 for luxury goods. Analysts at Citi and Bain stated that luxury sales grew by a whopping 15% in 2022 alone. To better understand the topic, check out our article on diamonds prices.
Cut quality is the factor that most greatly impacts the price—and beauty—of a 3 carat diamond ring. That’s why we recommend only considering excellent and Ideal cut 3 carat diamonds. A lower cut grade results in a diamond without brilliance—making such a large purchase worthless. So paying more for cut quality is certainly worth it. Color and clarity also impact the price of a 3 carat diamond, but not as much as cut.
As carat weight increases, so does the cost per carat. Diamonds with a higher carat weight are more rare, especially in a high-quality cut. For instance, the average cost of a 3.50 carat diamond is between $24,000-$160,000, with some priced as high as $190,000.
A 3 carat diamond weighs 600 milligrams and has a diameter (if it is round) of 9.2 millimeters. The standard dimensions for a round diamond are 9.20 X 9.20 X 5.73mm. In this chart, you can see the relative size of all 3 carat diamond shapes.
Diamonds on a wholesale level are priced per carat. If a 2.50 carat diamond has a price of $12,280 per carat the diamond’s price would be $12,280 x 2.50, equaling $30,700.
Diamond prices per carat also increase with higher weight categories. For example, a 2 carat diamond from James Allen might be priced at $8,380 per carat, while a similar 3 carat diamond from Blue Nile is $10,920 per carat. The price increases exponentially with weight due to the diamond’s higher weight value and higher price per carat within the weight category.
A larger-sized diamond does not mean it is of a larger carat. The table surface area, depth, and other shape features are not impacted by the diamond’s carat weight. These aspects are dependent on the diamond shape and how the diamond is cut—both of which contribute to how big a diamond appears.
As an example, a 3 carat oval shaped diamond ring like this one on James Allen will likely appear larger than this 3 carat round brilliant cut in a solitaire setting from James Allen. Both are stunning choices, but the size appearance differs even though the carat weight is the same.
When it comes to carat weight and size, review several options and diamond shapes to determine which diamonds are most appealing to you.
You can also get inspired in the celebrity world. Not every famous person has a ring that no one can afford. Some opt for a reasonable size with a lot of elegance, such as JWoww’s 3ct oval engagement ring.
Think You’re A Diamond Pro?
Think you’re a Diamond Pro and can save 40%?
Choose the diamond that you like better.
Is it the J color for $3,290 or the G color for $5,710?
An exquisite 3 carat diamond can be found in any diamond shape. Based primarily on personal preference and style, diamond shape is often the first decision to make.
If size appearance is important to you or the receiver, it may be helpful to note the surface area difference amongst 3 carat diamonds of different shapes. Depending on table size (the top, flat surface of a diamond), a certain shape may appear larger.
Elongated shapes, such as oval and pear shaped diamonds, most often have a larger visible appearance than other shapes, such as round brilliant, princess, and asscher cuts, of the same carat weight.
The chart below shares the different surface areas based on diamond shape:
|Approximate Table Surface Area for 3 Carat
|Round brilliant cut
|Pear shaped diamond
|Heart shaped diamond
With a 3 carat diamond ring, you have increased flexibility and options because of a larger budget and carat weight. We have an article dedicated to the best places to buy engagement rings and our top recommendation there, James Allen, is still number one for 3 carat diamond rings. But as your budget increases, your options shift a bit. One, in particular, should be singled out.
If you live near New York City or have the opportunity to travel there, Abe Mor diamonds is a unique option. Specializing in larger diamonds, Abe Mor is an actual wholesaler who works with boutique jewelry designers in the city. He has provided unique diamond and jewelry options for many of our readers. You can read more in our review of Abe Mor.
As the diamond size goes up and the number of options narrows, it’s much more useful for you to contact us directly and we will help you figure out which place is the perfect fit for you.
A 3 carat diamond was the diamond of choice for former Olympic athletes Simone Biles and Jonathan Owens. According to National Jeweler Magazine, the ring is an “F-color with VVS2 clarity, set on a 14-karat white gold shank with diamond pavé for maximum sparkle”.
Our goal is for you to find the most exceptional 3 carat diamond—at a price that’s excellent within the market. We want you to stick to your engagement ring budget and focus on areas that greatly affect a diamond’s beauty while scaling back in the areas that won’t be noticed by the naked eye.
Above all, we recommend reviewing the diamond yourself or having an expert assist you. We also advocate that all diamonds you are considering have a GIA certificate. This ensures that what is stated is validated by an esteemed grading entity.
Received great in-depth assistance from Veronika on my quest to buy an engagement ring for my partner. It can be quite a minefield for someone without industry know-how to get a great, well-cut diamond on the online marketplace, so the second opinion was not only welcome but desperately sought. In the end, I received wonderful advice and am confident the diamond purchased was the best my budget could afford! Thank you…see more
Diamonds Pro helped us pick a diamond, according to our budget and a few other criteria. We ended up buying a loose diamond from James Allen. We felt that we got very good value for money. The diamond was appraised by another jeweler where we live, confirming its characteristics and value. Finally, we had the diamond set in a ring by a local jeweler, and we’re very pleased with the result! Thank you Diamonds Pro 😊…see more
If a seller suggests you purchase a diamond with a different grading entity, it’s best to steer clear. No matter what the lab report states, the actual quality of the diamond is far less than what they are stating.
To ensure your 3 carat diamond is radiant and brilliant, and will maintain its value, follow our experts’ recommendations:
Here we’ll show you some examples of beautiful rings in a few different shapes and settings, to give you inspiration for your 3 carat diamond engagement ring.
Now we’ll answer some common questions our readers come to us with regarding 3 carat engagement rings.
You can get a 3ct diamond for $7,000 if you are willing to purchase a lab-grown diamond. Lab-grown diamonds have risen in popularity in the last few years. If you think that is in your wheelhouse, read more about lab-grown vs. natural diamonds.
3 carat diamond rings are much larger than your average engagement ring. Whether it is too big depends on your budget and opinion. However, consider that a big diamond, such as a 3ct diamond, will show any imperfections or inclusions easier. So instead of getting the largest carat weight that your budget allows, it may be a better idea to focus on a smaller diamond with higher grades in cut, color, and clarity.
While you are perfectly fine going with a setting made of 14K or 18K gold, with a 3 carat diamond you may consider upgrading to a platinum setting. Or you can make sure there is a platinum head. For more information check out our engagement ring metal guide.
You can definitely buy a high-quality three carat ring online without stress. Make sure to purchase from a reputable retailer (like the ones recommended above) that have a full refund policy. We talk about this more in our article comparing buying a diamond online vs in a physical retailer.
Make your search for a 3 carat diamond ring easier with the information in this guide. Consider saving our link as a bookmark so you can refer to it while looking online at different diamonds.
If you’re not confident in selecting an ideal cut diamond at an excellent price, contact our experts and they’ll be happy to assist you. With our years of experience and having looked at thousands of diamonds, we can easily distinguish a luxurious, high-class 3 carat diamond from a less than outstanding choice.
With a 3 carat diamond, your options change. We have helped many of our readers work directly with diamond importers and boutique jewelry designers.
A well-cut, stunning 3 carat engagement ring will capture the heart of the receiver—and all those who view it. Because of its significant carat weight, a 3 carat diamond offers extraordinary capacity for brilliance, sparkle and fire.
But buying any 3 carat diamond will not get you the results you want. You could buy a poorly cut 3 carat diamond and save some money, but it will be dull and lifeless compared to one with proper proportions.
Before you buy a diamond, get personal buying advice from industry veterans. We'll help you get the best diamond for the money.
DISCLAIMER: We don't use your email for marketing. Period.
A diamonds’ price is determined primarily by the 4 Cs of the diamond. On the wholesale level, diamond prices are first based on a diamond shape and
When purchasing a diamond engagement ring, it’s important to find the right retailer to purchase it from. Some retailers excel at niche products li
A wide range of 1 carat diamonds exist both in online markets and local diamond jewelry stores. Not only are there significant differences in beauty
Please enter your email address to receive your 25% off coupon code:
Here is your coupon code: GFDSF3GF