
Buying a 3.5 carat diamond engagement ring is a big investment, so take your time. This article will give you all the information you need about 3.5 carat diamond rings, including how big they actually are and how much you can expect to pay for them. We'll also give you some great tips on how to find the 3.50 carat diamond ring of your dreams.
- How much does a 3.50 carat diamond ring cost?
- Tips for finding the perfect 3.50 carat diamond ring
- Buy 3.5 carat diamond rings
- Advantages of 3.5 carat vintage diamond rings
- Talk to an expert
How big is a 3.5 carat diamond engagement ring?

Before we figure out how big a 3.50 carat diamond engagement ring is, we'll need to figure out the size and weight of a diamond. A diamond's size refers to its measurements or height and width, while a diamond's carat weight is determined by how much the diamond weighs in grams. One carat is only 0.20 grams, which means that a 5-carat diamond ring weighs around 1 gram. When it comes to 3.50 carat diamonds, they weigh 0.70 grams.
A 1 carat diamond can be 5.9 mm wide, but it can also be 6.8 mm wide, depending on its cut. That's why it pays to always look at diamond measurements, not just carat weight. Here is a chart with different types of diamond shapes and their corresponding dimensions.
Diamond size per cut
diamond cut | dimensions | Face size (in square mm) |
---|---|---|
oval | 12,32 × 8,21 × 5,01 mm | 82,94mm² |
round shiny | 9.87 × 9.87 × 5.95 millimeters | 76,51mm² |
esmeralda | 10,14 × 7,51 × 4,88 mm | 72,34mm² |
Pillow | 8,85 × 8,85 × 5,66 mm | 70,49mm² |
Pera | 13,73 × 8,27 × 5,04 mm | 82,89mm² |
Marquise | 15,78 × 7,89 × 4,81 mm | 88,40mm² |
Asscher | 8,52 × 8,52 × 5,50 mm | 66,78mm² |
As you can see, a 3.5 carat diamond can be 12 mm long, but it can also be 8 mm. This is because some diamonds are weighted in height while others are weighted in width. The perfect length-to-width ratio is between 1.0 and 1.1, which can be achieved with a round brilliant-cut diamond. According to the table, the dimensions of a round brilliant diamond are 9.87 × 9.87 × 5.95 mm, which equals 76.51 mm². This is the best proportion and cut for 3.5 carat diamond rings.
To argue whether a 3.5 carat diamond ring is too big for your finger or just the right size, we must first look at ring sizes (or finger sizes). Ring sizes range from 3 to 13.5. The average ring size for women is a 6 which measures 16.45mm in diameter.
Professional advice:Why is your ring size important in the first place? Diamond jewelry experts say that for a diamond ring to be in perfect proportion to your finger, it must occupy at least 50% of the width of your finger. If you wear a size 6 or 6.5, a 3.50 carat diamond ring will take up about 57.3% of your finger width.
Ideal for anyone who wants a diamond that stands out. So if you wear a size 6, as in the example above, a 3.50 carat engagement ring would look perfect on your finger.
How much does a 3.5 carat diamond ring cost?

A 3.50-carat diamond ring can cost between $7,700 and $105,270. The reason it is difficult to determine an exact price is that many factors can affect the total cost. These factors are called the “Four Cs” and refer to color, clarity, cut, and carat weight. Most people prioritize a diamond's weight without realizing the importance of the other three C's.
More often than not, the color and clarity of a diamond can affect the price even more than the carat weight. Colors are graded on the Gemological Institute Of America's D-Z clarity scale, with the most desirable diamonds having color grades D, E, and F. When it comes to clarity, you'll want to look for diamonds that are slightly included (VS1 and VS2) and very, very slightly (VVS1 and VVS2).
This chart will give you a better idea of how much you can expect to pay for a 3.50 carat diamond engagement ring.
range of colors | SI2 Clarity | Clarity VS2 | Clarity VVS2 |
---|---|---|---|
Cor K | US$ 32.069 | 41.187 $ | US$ 47.310 |
Cor J | US$ 40.888 | US$ 49.978 | US$ 55.280 |
Cor | 47.342 $ | 57.630$ | 66.788$ |
Cor H | 50.065$ | 72.885$ | US$ 83,165 |
Cor G | 57.941 $ | 87.086 $ | US$ 103.872 |
Cor F | 63.341$ | 91.829$ | 117.698$ |
Color E | 67.457 $ | 98.580$ | US$ 139.230 |
Choir D | 74.446 $ | US$ 108.412 | US$ 167.383 |
These are not fixed prices, as they depend on many factors, not just the Four C's. For example, the rarity of the diamond and its overall quality can also add a lot to the price. Please note that these prices are for round-cut diamonds. The round brilliant cut is the most expensive diamond cut, but more on that later.
As you can see, the most affordable 3.5 carat diamond ring is K color and SI2 clarity. The most expensive 3.5 carat diamond rings are D color and VVS2 clarity.
Cor

Unlike colored gemstones, a diamond is more valuable if it has less color. In fact, the perfect diamond is completely colorless. To understand the price of a diamond's color, we'll need to go through the GIA color grading scheme. Color grades start with the letter D and go up to the letter Z. There are no A, B, or C grades.
A diamond can have one of the following color grades:
- D, E e F - incolor
- G, H, I and J - nearly colorless
- K, L and M - fainting
- N, O, P, Q and R - very light
- S, T, U, V, W, X, Y e Z – claro

Most jewelers offer colored diamonds from D to K, as anything less than that is not considered valuable. Please note that it is very difficult to differentiate some color categories. For example, a G color diamond may have traces of yellow and brown, but these can only be seen under a microscope. In other words, even if a G-color diamond is labeled “almost colorless,” you won't be able to see any trace of color with the naked eye.
This is important for people who want to buy a 3.50 carat diamond engagement ring without breaking the bank. If you don't buy a DF color grade diamond, you can find a more affordable option.
Clarity

Clarity is another important factor that can affect the overall diamond price. Determines the absence of inclusions and internal blemishes in the diamond structure. The fewer inclusions a diamond has, the more valuable it is. According to the GIA clarity scale, a diamond can have one of the following clarity grades:
- Flawless (FL)
- Internally Flawless (IF)
- Very, very little included (VVS1 and VVS2)
- Very lightly included (VS1 and VS2)
- Slightly included (SI1 and SI2)
- Included (I1, I2 and I3)
Flawless and internally perfect diamonds are the most desirable types of diamonds, which are also very difficult to find. That's why most jewelers offer VVS1, VVS2, VS1, VS2, SI1 and SI2 clear diamonds. Although they come with some inclusions, most of them are minuscule.
For example, you can pay much less for a 3.50 carat VVS2 clear diamond compared to a 3.50 carat FL or IF diamond. Also, you wouldn't be able to tell the difference between the two. You can only see traces of inclusions at 10x magnification.
If you're on a budget but interested in 3.5-carat diamond rings, opt for a diamond with a lower clarity grade.

Before you start looking for 3.5 carat diamond rings, here are some tips that might help you make a better purchase:
1. Pay attention to clarity

The larger the diamond, the more its imperfections will be visible to the naked eye. Of course, you want to find a diamond with high clarity. A large table diamond reveals more imperfections than a smaller diamond. Not to mention that such a diamond would be very expensive. So when you go shopping for a 3.50 carat diamond ring, look for one with a good clarity rating.
2. Get a certificate

Always ask for a diamond certificate, especially if you are purchasing a high carat weight diamond. It's best to look for GIA certificates, distributed by the Gemological Institute of America. You can also look for an AGS (American Gem Society) diamond certificate, which is the next best option. Reputable jewelers will have some type of diamond certificate and these are usually available upon request.
3. Decide on a configuration

The 3.5 carat diamond rings are big in their own right as they measure 9.75mm in diameter. That's why they come with and without accent stones. If you want a 3.50 carat engagement ring that will be the center of attention, try looking for a solitaire ring. But if you don't mind the extra sparkle, you can also find a 3.50 carat diamond ring with a halo or side stones. Please note that the price will be higher.
4. Find the right cut

Choose a cut that brings out the diamond's sparkle and sparkle. The best cut for a 3.50 carat diamond ring is the brilliant round cut. This cut is made to perfectly reflect the stone's light onto your face. The brilliant round cut is also the most popular cut for diamond rings. Other cuts that make the diamond sparkle include princess, radiant, cushion, oval, and pear. The cuts that offer less brilliance are emeralds and Asscher cuts.
5. Go shopping

Finding a 3.50 carat diamond ring is not easy because they are so rare. The most popular diamond size is 1 carat. The larger the diamond, the harder it will be to find it. That's why it's important to be patient. Look for 3.5 carat diamond rings from reputable jewelers. You can also find 3.5 carat diamond rings in private collections.
6. Find a trusted jeweler

When making a ring-sized purchase of a 3.5 carat diamond, it is critical to buy from a reputable jeweler. Make sure you find a reputable jeweler who will help you find what you are looking for and be able to answer any questions you may have. In particular, if you plan to shop online, research the seller before making your purchase.
7. Consider a vintage ring

Consider checking out some 3.5 carat vintage diamond rings if you want something unique. Although 3.5 carat vintage diamond rings are rare, they are one of a kind and have a timeless appeal. We'll talk about 3.5 carat vintage diamond rings later.
Buy 3.5 carat diamond rings
- Bayard Ring. circa 1920
CONTACT FOR PRICE
- Anel Marbury
Contact us for a price
- Anel Wicklow
$96.000
- Anel oliveta
Contact us for a price
- Anel Deansgate
$60.000
- Stratton Ring. circa 1920
$55.000
- Anel Bayside
$55.000
- Boudry Ring. circa 1920
$42.000
- Whitby Ring. Around 1920 (antique, Art Deco era)
$40.000
3.5 carat weight (CW) vs. 3.5 carat total weight (TCW)

If you are planning to buy a 3.50 carat diamond engagement ring, you should know the difference between carat weight (CW) and total carat weight (TCW). If you find a diamond ring with accent stones that you like and notice that the total carat weight is 3.50, that's not just the carat weight of the center stone. Rather, it refers to the weight of the center diamond plus the additional stones.
You can find a diamond engagement ring labeled 3.50 carats, but the center stone is only 1.50 carats, which can be something that can put many off. This is something to look out for if you want a halo or three stone style diamond engagement ring. Make sure the ring description states the carat weight of the center stone, not the entire diamond.
3.5 carat diamond shape and cuts
Once you've decided what carat weight you want your diamond to be, the next factor to look at is the cut. The cut of a diamond should take priority over color and clarity as it can determine the appearance of the entire ring. If you're looking for 3.5 carat diamond rings, here are the diamond cuts you should be looking for.
3.50 carat oval cut diamond

The oval cut is the perfect solution for those who like longer cuts but still want to keep the shine of the round cut. An oval cut diamond has the same number of facets as a round cut diamond. A 3.50 carat oval-cut diamond is approximately 12.32mm long, so it will look quite large on a finger.
Their long, narrow tables make them look more elegant. If you are looking for a 3.50 carat oval-cut diamond engagement ring, you can find solitaire and halo style rings. Also, the oval cut can create an illusion of length, making the finger appear longer.
3.50 carat brilliant-cut round diamond

As we said before, the brilliant round cut is the most popular diamond cut. With its 58 facets, a brilliant round cut can make a diamond shine brighter than any other cut. What also makes round cut diamonds so desirable is that they look good on any finger shape and size.
You can find 3.50 carat round brilliant-cut diamonds in all kinds of styles and settings, from traditional solitaire settings to beautiful halo-style settings. The shiny round cut is classic and will never go out of style. The average length of a round brilliant-cut diamond of 3.50 carats is 9.87 mm.
3.50 carat emerald-cut diamond

If you prefer square diamonds, the emerald cut might be for you. It has a rectangular shape, carved steps and large tables. Emerald-cut diamonds appear larger than round-cut diamonds, even though they have the same carat weight. For example, while a 3.50-carat round-cut diamond is 9.87 mm long, a 3.50-carat emerald-cut diamond is 10.14 mm long.
Emerald diamonds are generally affordable compared to round cut diamonds. They look best on those who have fine and thin fingers. Note that emerald diamonds are less brilliant than round diamonds. So if you're looking for a fancy diamond, the emerald cut might not be for you.
3.50 carat cushion cut diamond

A 3.50 carat cushion-cut diamond is 8.85 mm long. Cushion cut diamonds are smaller than round cut diamonds and the same carat weight as most other diamond pieces. These diamonds have rounded corners and larger facets. Cushioned diamonds have become quite popular in recent years.
Because it is a combination of the emerald cut and the brilliant round cut, this type of cut makes the diamond look like a pillow, hence the name. This is a traditional diamond cut that was quite popular in the 18th and 19th centuries, so it has a distinct vintage style. It is also the modernized version of the old mine cut.
3.50 carat diamond in a pear

Due to its elongated shape, the pear cut gives the diamond more length compared to the round cut. A pear cut diamond measures 13.73mm, so it will look best on long fingers. As it tapers to the pointed tip, the pear cut can make your finger look thinner, so it's also great for thick fingers.
A pear cut is sometimes called a drop cut. Pear-shaped diamonds come in all sorts of settings. While usually set with prongs, pear-cut diamonds can also be found in halo settings.
3.50 carat marquise-cut diamond

The marquise is the longest diamond shape. A 3.50 carat marquise-cut diamond is approximately 15.78 mm in length. It's not just their size that makes them so desirable, but their majestic appearance as well. It is worth mentioning that marquise diamonds are generally more economical than brilliant-cut round diamonds.
The marquise cut is also sometimes called the Navette cut. It has an oval table with two pointed ends. Like all other east-west design diamonds, a marquise cut diamond can make your finger appear longer. It's the perfect diamond cut for a bride looking for something a little different.
3.50 carat Asscher-cut diamond

The Asscher cut has a unique symmetrical look that was quite popular in the Art Deco era. If you want a 3.50 carat Asscher-cut diamond, it will be about 8.52 mm long, which makes it smaller than the round brilliant cut and most other cuts. It has an octagonal shape and 58 large folds.
Please note that Asscher cut diamonds may be more expensive than other cut diamonds. This is because only high quality diamonds are chosen for the Asscher cut, as this diamond shape cannot hide imperfections like a brilliant round cut. Also, it's not as shiny as the shiny cut.
Pros and cons of a 3.5 carat vintage diamond ring

If you're looking for a 3.50 carat engagement ring, you should also consider getting a vintage ring. Here are some of its most important advantages and disadvantages.3.5 carat vintage diamond rings.
Advantages of 3.5 carat vintage diamond rings

- 3.5 carat vintage diamond rings are one of a kind. All vintage engagement rings are at least 50 and even 100 years old, which means they are all handmade. Instead of buying that special someone a diamond freshly made in a lab, you can buy a vintage ring that no one else has.
- Vintage engagement rings are more symbolic and can have a whole story behind them.
- If you're looking for an affordable 3.50 carat diamond ring, you might find better value with a vintage ring. Some stores even allow you to bargain for a lower price.
- Vintage engagement rings are eco-friendly.
- Because vintage engagement rings were made with old-fashioned machines, you won't find vintage cuts and settings on new rings. For example, instead of the shiny round cut, you'll find the old European cut, which has a more traditional charm.
Cons of 3.5 carat vintage diamond rings

- 3.50 carat diamond engagement rings are very hard to find as they are very rare. You will have to be patient if you want a vintage engagement ring.
- Vintage engagement rings may have belonged to someone else in the past. Some brides don't want a used engagement ring. They prefer new engagement rings that only they will wear.
- Some 3.5 carat vintage diamond rings don't shine as brightly as their new production counterparts.
- Metal settings may show signs of wear and tear, but this can be easily fixed.

Buying a 3.50 carat diamond engagement ring isn't easy, so you should talk to a diamond expert. If you are interested in 3.5 carat diamond rings, Estate Diamond Jewelry offers an impressive collection of vintage engagement rings. feel free tocontact usif you are interested in any of these rings. And if you want to see a ring in person, you can also make an appointment.