3 Carat Diamond Price

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A 3 carat diamond is an excellent choice for a ring

  If you want a diamond ring more unique than what most people have, a 3 carat diamond is an excellent choice. In this article we will help you to understand:

  • How to read a GIA certificate for a 3 carat diamond?;
  • What is the measurement and weight of a 3 carat?;
  • How to buy a 3 carat diamond with wholesale price?;
  • Ideal ways to set a 3 carat diamond into a ring.

Diamond certificate and 4Cs grading

The price of a diamond was determined by the GIA 4Cs grading factor. Grade of 4Cs include Color/Clarity/Cut(shape)/Carat.

Clarity and Color, what’s the best color of a diamond?

Color and clarity are the 2 factors only able to grade through visual inspection.
Depend on the visual from colorless to yellow, white Diamond color will be presented as grade D-G(colorless), H-M(yellowish), or N-Z(Light yellow).
If the level of yellow exceeds Z, the stone color will be considered Fancy yellow, that will bring it to a new GIA standard to grade. Diamonds will also appear in colors such as fancy pink, fancy blue, fancy yellow, or fancy green color. Fancy colors are rarer than white at some point, pink and blue color diamonds were recognized as record breakers in auctions.

3 carat diamond size comparison for rings

Though inclusions are welcomed in some gemstone such as emerald, diamond have a rather strict grading standard.

When the GIA grades diamonds for their diamond grading reports, diamond clarity will be defined along a scale ranging from Flawless to Imperfect. To determine the clarity scale, diamond experts look at various elements which in total add to the final clarity grade assigned to the diamond. This includes not only the presence of inclusions or blemishes as imperfections but also its scale, type, and locations.

Ideally inclusions should avoid appearing on table, but since most inclusions are transparent or in microscopic scale, inclusions and imperfections will only be able to spot by naked eye if the diamond clarity is below SI.

If a diamond reaches the weight of 3 carat, that also comes with a VS clarity, we can assume its one of the rarest diamond in the world.

For the naked eye, one can only see the inclusions from clarity grade SI or below. Inclusions are natural minerals and “growth marks” formed with the diamond. It will be natural to observe acceptable amount of inclusions in a diamond. Some diamond shapes may require higher clarity grade such as emerald cut, as it’s table is bigger, makes it easier to spot inclusions. Clarity inclusions come in different shapes such as feather, cloud, crystal or natural. Experts consider inclusions in gemstones are part of its beauty as a natural mineral, however, the existence of inclusions should not be dominant or the first thing you see when looking at a diamond.

When it comes to determining diamond clarity, a GIA diamond grader needs to use a 10x lens to indicate all visible spots on a faceted diamond. A flawless (FL), or Internally Flawless (IF) diamond is the rarest among all diamonds, that means the GIA grader cannot see a single clarity imperfection in the diamond. Most of the best quality diamonds are in the grade of Very Very Sightly (VVS) or Very Sightly (VS) included, in this grade the clarity inclusions are extremely difficult to spot even under a 10x lens by a GIA grader. Given the same carat and cutting, the price of a 3 carat diamond can be significantly different between VS and VVS. The ideal range for a good quality diamond is from SI to VVS, since inclusions are invisible under naked eye.

3 carat diamond i.f. vvs1 vvs2 vs1 vs2 si1 si2
D 84.810 61.270 54.780 42.460 32.890 20.790 14.740
E 60.060 54.780 45.870 36.520 29.480 19.580 13.970
F 51.810 47.740 40.040 33.000 26.620 17.930 13.310
G 39.270 35.200 32.340 28.270 23.100 16.170 12.650
H 29.480 28.270 25.410 22.440 19.030 13.860 12.100
I 21.340 20.130 19.030 17.270 14.960 12.100 10.450
J 16.940 16.610 15.730 14.190 12.760 10.340 9.240
K 15.180 14.520 13.970 12.650 11.440 8.910 7.700
3 carat diamond i.f. vvs1 vvs2 vs1 vs2 si1 si2
D 49.500 40.040 35.200 28.930 24.750 17.710 11.770
E 38.720 35.530 32.670 27.170 23.100 17.050 11.220
F 33.660 31.680 28.930 24.860 21.010 15.730 10.780
G 29.810 27.720 25.960 21.230 18.590 13.750 10.560
H 24.640 23.210 20.680 17.820 15.290 11.550 9.680
I 18.700 17.490 16.280 14.850 12.210 10.120 8.360
J 13.420 12.650 11.880 11.110 10.010 8.140 7.040
K 10.560 10.120 9.680 9.350 8.360 6.930 6.050

Carat(weight) and cutting

Diamond cut is part of the GIA 4Cs and influences the reflection, brilliance and sparkle of your diamond – and therefore plays a big role in determining the price of diamonds. The cut grade takes a few different elements into consideration such as proportions, polish, shape and symmetry of the diamond. Combined, these factors influence the way light is reflected when it enters the diamond and exits from the table. The better the cut, the more sparkle and brilliance the diamond has making it all the more stunning.

With a good cut and shape, the light that enters the diamond through the table travels to the pavilion where it is reflected back out through the table. The angle at which the light is reflected determines the brightness of that iconic diamond sparkle. Therefore, diamond cut is a critical part of what makes your diamond come to life when you’re wearing it as jewelry.

Quality of cut grade is not limited to the main diamond, side diamonds for fine settings should also reach a fair level of cutting, as the cut grade will effect the level of brilliance on the piece of jewelry.

While there are some differences between grading systems as to how a cut grade is described, there are general rules accepted as the international standards for defining diamond cut grades.3 carat diamond engagament ring width solitare diamond 3 carat diamond engagament ring


This is the very best diamond cut grade a diamond can have. The brilliance is simply stunning as the light is perfectly reflected through its ideal proportions and symmetry. These diamonds are of maximum quality and highly valued.


While still absolutely stunning, they are not exactly perfect in terms of symmetry and proportions. However, wearing a diamond with Excellent Cut will still have that sparkle we all expect from a brilliant diamond.


Diamonds of this cut grade are a great way to balance size(carat) and quality as the brilliance is still stunning, yet slightly below the Ideal and Excellent cut grades. The diamonds provide good value for buyers looking for a slightly larger diamond at the same price of a smaller diamond with a better cut grade.

Among the strict and complex GIA grading procedure, weight(Carat) is easy to grade, and it significantly affects the value of a gem.

Carat is one of the GIA 4Cs that affects the price of a diamond. Many people think a carat is a unit of size, but in reality, it is a weight unit. The word carat comes from the Carob seed used centuries ago to determine the weight of precious stones as the seeds have a stable and uniformed weight. When diamonds are weighed, they were recorded with a carat weight commonly rounded off to the second decimal place. An example, one full carat weighs 200 milligrams or 0.007 ounces.

One carat equals to 0.2 grams. The single Carat unit is divided into 100 points, which is used to determine the weight of diamonds below 1 carat, or to give a more detailed description of the weight of a diamond to the 2nd decimal place. So, a diamond weighing half a carat is 50 points, and a diamond weighing 2 carats and a quarter is a 2.25 carat diamond.

In the professional diamond industry, the carat weight of a diamond is also used for diamond prices. Industry professionals say prices in a “price per carat” format. To reach the final price of the diamond, the price per carat unit must be multiplied by the total carat weight.

Based on prices at time of writing, here’s an example:

Loose diamond: 3 carat VVS1 Clarity J Color

  • Price per Carat: $14,190
  • Total price: $42,570


Special visual effects

  Some diamonds may contain special visual effects. In several oval diamonds, we may discover what's called a bowtie effect. This is an effect that occurs because some of the light at the centre of the diamond does not bounce back to the table. Many diamond experts agree that this is part of the beauty of an Oval Shape diamond; however, the effect should not be dominant or the first thing you see when looking at the diamond. The degree of the bow-tie effect is not stated on a diamond certificate, so the only way to assess it is through visual inspection. Make sure you have a good photo in order to observe the bowtie effect.

How much does it cost?

Diamond Pricing: GIA Diamonds become increasingly rare to find starting from 3 carats

There is a reason why a 3 carat diamond will worth much more than three 1 carat diamonds. Carat weight does not affect value or size proportionately. A Round Brilliant Cut Diamond weight 1 carat has a diameter of 6.5mm, whereas a 3 carat Diamond is 9.3mm with Round Brilliant Cut. As for the price per carat, a 3 carat diamond with the weight of 600 milligrams ranges would be between $6,050 and $ 84,810 per carat.

What are the wholesale prices of a 3 carat?

If you are looking for a unique diamond that is more special than what most people purchase, then you're in the right place.

To estimate the average final wholesale price of a 3 carat diamond, multiply the price per carat weight of the diamond by 3.

The average wholesale price of a 3 carat weighted GIA Certified Diamond would fit the range between $ 18,150 and $ 254,430.

Find out today's 3 carat diamond price.

To get today's updated wholesale price for the 3 carat diamond you are looking for, fill out our form to let us know what you are looking for and to receive a free quote.

Our team will then search from our world's largest inventory of wholesale diamonds to find the best deal for the stone fits your requirement. Your diamond expert will contact you personally to discuss further details about the process and give you advice.

3 carat diamond ring guide

What are the popular 3 carat diamond engagement rings?

A 3 carat diamond engagement ring is to set in a plain and elegant solitaire setting, that will already give a stunning look because the size(carat) of the stone is more significant than usual, importantly a well picked sparkling diamond is a natural beauty on its own.

However, 3 carat diamond rings do come in many different styles to fit the personality of every bride-to-be.

The favorite pick for grooms-to-be and their special someone: a solitaire setting with pave diamonds in a thin band

This diamond ring setting will draw the focus on the centre 3 carat stone by having it set in a visible "stage", that is the prong. The size(carat) of the centre diamond was boosted due to the optical illusion from the thinner ring band filled with pave diamonds.

If you want to stand out a bit more, choosing fancy shape cutting diamonds such as a cushion shape cut, emerald shape cut, pear shape cut or oval shape cut diamonds will be the right choice. The shape itself will give extra uniqueness to the ring's appearance. By the meantime, a solitaire diamond engagement ring with a fancy shape cut diamond comes at a lower price compared with an engagement ring with a round diamond.

A three stone setting

The popularity for the three stone diamond ring setting got a big boost as royalty Prince Harry proposed to Meghan Markle, now the Duchess of Sussex, with a three stone setting. The ring setting complements the centre stone while giving it more character based on the shape of side stones such as half moon, baguette or pear shape diamonds you decide.

Please note that not all carat sizes are suitable for this ring set as the side stones can distract the appearance of the centre stone and can make it look small. If you have a 3 carat diamond in the centre, you would like the side diamond be nothing more than 1 carat. If the clarity of the main stone is D color vvs2, please make sure the clarity of side stones should be close to vs1 or even higher.

A split shank setting

Engagement rings that have a split shank feature a band that parts as it reaches the centre setting. These diamond ring settings have a visible gap in the band and the centre stone. Thus make the 3 carat diamond appear larger and more ornate. A typical application for split shank settings is to set with micropavé diamonds to give the engagement ring more sparkle.

Does precious metal for fine jewelry influence the diamond color visually?

The answer will be No. The diamond color will always stay the same, but yellow gold or white gold used for fine jewelry can influence the appearance of your diamond color from the naked eye. It is recommended to stay away from yellow gold jewelry if your diamond was graded I color or lower. The gold color will make the diamond look more yellow. However, if you personally favour yellow gold for your ring, creating the setting with two tones is an option. By making the basket of the ring in white gold can prevent the diamond from looking yellow due to the reflections.

Are custom 3 carat diamond jewelry more expensive?

In Diamond Registry, they are not as we have in-house jewelry designers to do the designing for you, free of charge. You will only pay for the materials of the ring, so picking a finished style or making your design is the same – sometimes even cheaper! Because to buy a diamond ring from a big brand means paying for the design and the name too. So why wouldn't you go for a personalized ring that is unique and can't be purchased anywhere else for the same price or cheaper?

If you decide to personalize a ring of your own, it does not have to be from scratch but can also be based on different ring styles that have inspired you. Because all your ideas will become one when you sit with one of the in-house designers.

Discover the options and cost estimation for a ring you have in mind by reaching out to us via the chat, email or a phone call.

Want to be inspired? View our Instagram @diamondregistry to preview previously made rings for clients.

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