0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (2023)

Diamond details

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (1)
Actual size

sample image

Actual size is set for screenChange

Shape: Round
Weight: 0.3 carat
Price: check here »
L×W×D: 4.35 × 4.35 × 2.62 mm
Depth: 60.2% OK
L/W ratio: 1
Face-up size:


This diamond LOOKS its weight!

This 0.3 carat Round has a face-up area of approx. 14.86 mm², which falls within the normal range for 0.3ct Rounds. A face-up area is the area of the girdle plane and tells you how big the stone looks when viewed from the top (as set in a ring). Face-up size of this diamond is as you would expect of a 0.3ct Round → learn more

Actual Diamond Size

Here you can see how big 0.3 carat diamond (4.35×4.35×2.62mm) actually is and how it would appear on a ring and finger. Adjust the ring and finger size to get an idea of how it would look on your finger. To choose another diamond or to change diamond parameters click here.

Settings » Compare »


Skin tone:


0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (2)

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (3)

Ring width: 3.0mm

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (4) 0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (5)

Ring diameter: 16.9mm

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (6)

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (7)

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (8)


Your settings



Skin tone


Ring diameter

16.9 mm

Ring width

3.0 mm

Finger length

64 mm


Actual size is set for screenChange

To see how this 0.3 carat Round (4.35×4.35×2.62mm) compares to other diamonds, click here.

Buying Guide: Round cut

Round brilliants are very good at masking inclusions and color, which means you can go quite low in terms of clarity and color grades without sacrificing the appearence. Cut, on the other hand, which determines the fire and brilliance should always be of the highest possible grade (Excellent for GIA or Ideal for AGS).

What's the price of a 0.3 carat diamond?

It depends. The value of a diamond is determined by a combination of its unique characteristics - the famous 4Cs (Cut, Color, Clarity, and Carat). It can get complicated, but you can quickly check the price range for Round diamonds of around 0.3 carats by clicking here »

The search results will show you diamonds from 0.25 to 0.35 carats with all the recommended parameters already preselected in order to give you the best value.

Best Value For Money Recommendation

For 0.3 carat Round:

  • Color:
    • J if platinum/white gold solitaire setting
    • K if yellow gold solitaire setting
  • Excellent or Ideal cut
  • SI2 clarity
  • At least Good polish/symmetry
  • GIA or AGS report
  • If possible, "buy shy" [explain]

For best deals on 0.3ct Round check the recommended online stores (all provide actual diamond images):

James Allen → huge selection, price match guarantee, highly recommended

Whiteflash → big inventory of Super Ideal cuts

Brian Gavin → Signature Hearts & Arrows, Blue line

Look for:

  • Color: J or higher [depends on a setting]
  • Clarity: SI or better [explain]
  • Cut: Excellent (GIA) or Ideal (AGS)
  • Cut parameters:
    • Depth: 58% - 62.5%
    • Table: 53% - 58%
    • Polish/Symmetry: Good or better
    • Length-to-width ratio: 1.00 - 1.02
  • Diamonds certified by GIA or AGS [explain]
  • Eye-clean

Watch out for:

  • Inclusions visible to the naked eye
  • Extremely thin or extremely thick girdle
  • Fair or Poor symmetry
  • Strong blue fluorescence [explain]
  • Diamonds without GIA or AGS certification [explain]

Where to buy?

Online-only stores will always offer better prices compared to bricks & mortar stores, their main drawback, however, is that you rarely get the opportunity to visually inspect the diamond before purchasing. Luckily, this is not always the case. A few reputable online retailers (see above) are now providing actual Hi-Res photos of the diamonds they're selling, making it easy and safe to shop online. For best value, buy online.

Note: Seeing a high quality photo of the actual diamond before purchasing online is a must.

Additional Diamond Info

Round Brilliant is the ultimate classic and the most popular of all diamond shapes. It is designed to produce maximum fire, brilliance, and scintillation (sparkle). It has evolved over several hundred years and is the most researched and scientifically analyzed cut in the industry. Simple, timeless, and beautiful.

General size appearance:

Round Brilliants typically look larger when viewed from the top compared to Princesses, Emeralds, Asschers, Radiants, and Cushions.

Shape: Round cut
Also known as: Round Brilliant
Cutting style: Brilliant
Facets: 58 (57 if no culet)
Signature shape characteristics: Circular outline, most brilliant of all diamond cuts
Carat weight: 0.3 ct
Gram weight: 0.06 g (0.0021 ounces)
Points: 30 pts
Measurements (L/W/D): 4.35 x 4.35 x 2.62 mm
Length: 4.35 mm
Width: 4.35 mm
Depth: 2.62 mm
Average diameter: 4.35 mm
Depth percentage: 60.2%
Recommended depth percentage: 58 - 62.5%
Length-to-width ratio: 1
Typical length-to-width ratio: between 1.00 and 1.02
Face-up area: 14.86 mm²
Face-up area per carat: 49.53 mm²/ct
Face-up size: Normal for 0.3 carat Round
Volume: 17.05 mm³

Show more

Compare 0.3ct Round with another diamond

Choose diamonds to compare:

Popular comparisons:

  • 0.3ct Round (4.35x4.35x2.62) vs. 0.4ct Round (4.79x4.79x2.89)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.5ct Round (5.16x5.16x3.11)
  • 0.3ct Round (4.35x4.35x2.62) vs. 1ct Princess (5.51x5.51x3.97)
  • 0.3ct Round (4.35x4.35x2.62) vs. 1ct Round (6.5x6.5x3.92)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.2ct Round (3.8x3.8x2.29)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.6ct Round (5.48x5.48x3.3)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.25ct Round (4.09x4.09x2.47)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.7ct Round (5.77x5.77x3.48)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.33ct Round (4.49x4.49x2.71)
  • 0.3ct Round (4.35x4.35x2.62) vs. 0.3ct Princess (3.69x3.69x2.66)

Depth percentage for 0.3 carat Round (4.35×4.35×2.62mm)

Depth percentage of Round cut is the ratio of the total depth (measured from table to culet) to its average diameter. The total depth percentage of this diamond is 60.2%, which is



Depth percentage for rounds is calculated with the following formula:

Depth % = (total depth ÷ average diameter) × 100

0.3 carat Round (4.35×4.35×2.62mm) depth %:

Total depth: 2.62 mm
Average diameter = (4.35 + 4.35) ÷ 2 = 4.35 mm

Depth % = (2.62 ÷ 4.35 ) × 100 = 60.2%

About Depth Percentage

Depth percentage is one of the most important measurements as it plays a critical role in diamond's brilliance and appearance. If a diamond is cut too deep or too shallow, light leaks out, making the stone less brilliant and fiery. Deep cuts also add hidden weight.

Recommended depth percentage range for Round cuts is between 58% and 62.5%. Diamonds that fall out of this range are generally less desirable and usually best to be avoided.

Face-up size evaluation for 0.3 carat Round (4.35×4.35×2.62mm)

The face-up size of this 0.3 carat Round (4.35×4.35×2.62mm) is within the normal range for 0.3ct diamonds of this shape. Compared to 0.3ct Round reference diamond (see below), this diamond is of adequate size when viewed from the top. In short, all is OK, this diamond looks its weight.

The importance of face-up size

Diamonds are sold by weight (carats), but it's important to understand that weight doesn't equally translate into physical size, especially spread. Two diamonds of the same carat weight can vary greatly in spread, meaning that one diamond can appear larger than the other, even though they weight exactly the same.

Proper face-up size should play an important role when buying a diamond. When a diamond is set in a ring, your eyes will only see the face-up area, so you should make sure it's of adequate size. Adequate size also indicates a good cut, meaning better light performance. You probably wouldn't want a poorly cut 0.3ct Round that is less sparkly and faces up the same as a well-cut Round of a smaller weight.

The bottom line:A diamond must look its weight. This one does. Thumbs up.

0.3 carat Round reference diamond

0.3ct Round reference diamond is calculated from the following ideal proportions:

Table: 57%
Crown angle: 34°
Pavilion angle: 40.7°
Girdle: 2.8%
Star length: 50%
Lower half-length: 80%
Culet: None
Calculated values:
Depth: 60.3%
Crown height: 14.5%
Pavilion height: 43%
For 0.3 carat weight:
Diameter: 4.35 mm
Face-up area: 14.86 mm²

Note: Round diamonds with face-up area of within 5% lower and 3% higher than reference Round diamond area are considered to be of adequate face-up size.

To learn more about diamond size evaluation, click here.

Face-up Area For Rounds

Face-up area is a measure of the size of the diamond when viewed from above. It tells you how big the diamond is at the girdle plane. It's important for a diamond to have sufficient face-up size for its carat weight.

0.3 Carat Diamond (Round, 4.35×4.35×2.62mm) (9)

For more info see carat weight vs face-up size

Face-up Area per Carat

Face-up area per carat is calculated by dividing face-up area of the diamond with its carat weight. It tells you how many square millimeters of the top surface area a diamond is showing or would show for 1 carat weight. This can be useful when comparing stones of similar weights as it tells you how much spread per carat you will get.

Note: Face-up size does not linearly grow with carat weight, which means the heavier the stone, the smaller its face-up area per carat (e.g., 1ct stone will have higher face-up area per carat than 2ct stone).

Face-up area per carat for 0.3ct Round (4.35×4.35×2.62mm):

Top surface area = 14.86 mm²
Weight = 0.3ct

Face-up area per carat = 14.86 ÷ 0.3 = 49.53mm²/ct

Color Recommendation For 0.3ct Round

Round Brilliants don't show color as much as other cuts, so you can go quite a few steps down on the color scale without noticing any difference. The choice of color also depends on a setting:

Solitaire Small side-stones Substantial side-stones
White gold/Platinum J+ I+ same as side-stones+
Yellow gold K+ J+ same as side-stones+
e.g. pave setting e.g. three-stone setting

If side-stones are of any significant size (like in three-stone settings), you should at least match the color of the center stone with the color of the side stones, otherwise the center stone might look out of place (a bit "off-white").

For best value, go with the minimum recommended color for a particular type of setting. Color variations between J graded and higher colored Round cuts are so slight that it's almost impossible totell the difference, especially when diamonds are mounted.The difference in price, however, can be quite considerable.

Clarity Recommendation For 0.3ct Round

Round Brilliants are great at masking inclusions, so you can go relatively low on clarity scale without sacrificing the appearance, as long as the diamond is eye-clean. SI1 or SI2 clarity offers great value for money.

Note: You can always go lower in clarity, but it's going to get increasingly difficult to find an eye-clean Round below the minimum recommended SI2 grade.

For best value, go with the lowest clarity possible that is still eye-clean. If a diamond is eye-clean, it doesn't matter, if it's flawless or SI2. It will look the same, provided all other characteristics are the same.

About Diamond Clarity

Diamond clarity refers to the presence and visual appearance of the flaws inside a diamond (called inclusions) or on its surface (called blemishes). Clarity tells you to what degree these imperfections are present.

The amount of inclusions and blemishes is directly correlated to a diamond's value. Fewer imperfections mean higher price and vice versa.

Gemological laboratories grade diamond clarity as Flawless (FL), Internally Flawless (IF), Very Very Slightly Included (VVS1,VVS2), Very Slightly Included (VS1,VS2), Slightly Included (SI1,SI2), and Included (I1,I2,I3).

GIA and AGS Certified Diamonds

Professional and unbiased assessment of diamond characteristics is stated on a diamond grading report, commonly referred to as a certificate. Certificate, while not 100% reliable, is essential in determining a diamond's value.

The standard for diamond grading is pretty much set by GIA - Gemological Institute of America. They are the most reputable and consistent lab in the industry. AGS (American Gemological Society) is not far behind.

If a diamond is not certified by GIA or AGS, you can be pretty much certain that you are looking at lesser quality than indicated. This puts you in a bad position of not knowing the true diamond characteristics,which almost always results in overpaying.That is why a certificate from a well-respected grading lab is so important.

The bottom line:

Make sure to always buy a diamond certified by either GIA or AGS. That's the only way of truly getting the quality you expect.

Diamonds with Blue Fluorescence

Blue fluorescence can have a positive, negative, or zero effect on a diamond. Diamonds in thelower color range (H or lower) can benefit from it, as it can make them look whiter, more colorless. On the other hand, strong fluorescence can cause a stone (especially in the higher color range D-G) to appear hazy or milky under certain light conditions. One of the biggest benefits of fluorescent diamonds is that they generally cost less.

GIA grades fluorescence as None, Faint, Medium, Strong, and Very Strong.

Faint fluorescence will have zero effect on color and overall appearance. Fluorescence of this type is not an issue and shouldn't be a purchasing factor.

Medium fluorescence will in most cases have zero to very small influence on color and overall appearance, however, colorless diamonds can sometimesexhibit negative effects and should be examined in different light conditions before purchasing.

Strong/Very Strong fluorescence requires caution. Generally, it's not a good idea to buy a colorless diamond with Strong/Very Strong fluorescence. As for lower color diamonds, even they can sometimes look hazy with strong fluorescence, so never buy a stone with this type of fluorescence without careful visual inspection.

If you're interested in fluorescent diamonds that have been carefully examined and do not display any negative effects of fluorescence, I recommend Brian Gavin's Blue Diamonds. Those are definitely top of the line and a great value.

Diamonds Without GIA or AGS Certificates

The problem with diamond grading labs other than GIA or AGS is that they are looserand more inconsistent in their grading standards. A GIA color H is an IGI color G and an EGL/HRD color F. The same goes for clarity.

While it's true that IGI, EGL, and HRD diamonds are sold at a discount, you can be certain that the same stones would cost less, if they would be certified by GIA or AGS. Why? Because they would get lower grades and thus lower price. Lower than discounted IGI, EGL, and HRD stones with higher grades.

Diamond merchants use IGI, EGL, HRD, and alike to maximize their profits. They know they can sell diamonds with inflated grades for more, even if they're sold at a substantial discounts. Some merchants also use their in-house certification, usually for the sole purpose of increasing their profits. These kinds of certificates are meaningless.

The bottom line:

If you don't want to overpay and want to know exactly what kind of quality you're getting, then avoid diamonds without GIA or AGS certification.

Buying shy

Buying shy means choosing a diamond that falls just under the full-carat or half-carat mark. So instead of 1ct stone you go for 0.95ct; instead of 1.5ct you go for 1.4ct, and so on.

Because diamond prices jump dramatically at full-carat and half-carat weights, you can save a considerable amount of money when buying shy. Going up to 10% down in weight will result in a slight difference in size, but so slight it'll barely be noticed, if at all. To check this for yourself, use this site to compare different sizes.

For example, in case of half carat diamond, you can safely go down 10%: 0.45 vs 0.5 carat. The size difference is almost unnoticeable.

But lower than that, it will quickly become more noticeable, e.g. 0.4 vs 0.5 carat.

Enter your screen size (diagonal)

My screen size is inches

Actual size is currently adjusted to screen.

If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a diamond, ring and finger will not be shown correctly.


How much is a 0.30 diamond worth? ›

The average price of a 0.3 carat diamond is currently $643 (see price chart below). 0.3 carat diamonds can cost anywhere from $266 - $1,396 depending on the diamond's shape, color, clarity, and other factors.

How many mm is 0.3 carat diamond? ›

4.31 mm

What is the actual size of a 0.3 carat diamond ring? ›

However, there are some general guidelines: a 0.3 carat diamond size is about 4.3 mm, and a 1 carat size is about 6.5 mm. The size difference is about 1.5 times, but this slight difference in size significantly changes the actual appearance of the diamond.

Is 0.3 carat diamond good? ›

A 0.3CT diamond is very versatile – they can stand alone as a center diamond or act as side diamonds. They also go well on diamond earrings and diamond pendants!

How big is 0.3 carat diamond on hand? ›

Here you can see how big 0.3 carat diamond (4.35×4.35×2.62mm) actually is and how it would appear on a ring and finger. Adjust the ring and finger size to get an idea of how it would look on your finger.
Your settings
Ring diameter16.9 mm
Ring width3.0 mm
Finger length64 mm
Save settings
3 more rows

What does 0.30 diamond mean? ›

A diamond's carat weight is often expressed in fractions or points. One carat = 100 points. For instance, about 0.30–0.36 ct. is often referred to as 33 points, 30 carats or ⅓ of a carat. The size of a 0.30 carat diamond ring equals approximately 4–4.45 mm.

How many carats is a 4.5 mm diamond? ›

Round Diamond Sizes
Round MM SizeRound Carat Weight
4.25 mm.0.28 ct.
4.5 mm.0.36 ct.
4.75 mm.0.44 ct.
5.0 mm.0.50 ct.
25 more rows

How many mm is 0.3 carat? ›

A well cut 0.3ct Round should have an average diameter between 4.24 and 4.42 mm. Compared to 0.3 carat Round reference diamond, this diamond appears too small when viewed from the top, which makes it a chubby.

How do I know what my diamond is worth? ›

To calculate diamond price, first, choose a color grade (leftmost column) and a clarity grade (top row). Next, multiply the number shown at their intersection by 100, then multiply that number by the carat size. For example, an I-color grade, VVS2-clarity grade diamond would cost $3,000 per carat.

Is 0.3 carat too small for an engagement ring? ›

Everyone's personal opinion of what is considered a small engagement ring may vary, however we consider small engagement rings to be around 0.3 carats to 0.8 carats. While they are considered small, they are no less stunning than a larger sized engagement ring.

Why does my 3 carat diamond look small? ›

A diamond with more depth may look smaller since you can't see the depth, but it is still 3-carat. One with more width will look larger since the carat weight is spread out. Hence, consider other aspects, apart from the carats, equally well if you want your diamond to be bigger and look bigger!

What is the difference between 0.2 and 0.3 carat? ›

Diamond size comparison

This diamond LOOKS its weight! Here you can see the actual sizes of 0.2ct Round (3.8×3.8×2.29mm) and 0.3ct Round (4.35×4.35×2.62mm) as they would appear on a ring and finger. 0.3 carat Round (4.35×4.35×2.62mm) has approx. 31% more face-up area than 0.2 carat Round (3.8×3.8×2.29mm).

What is a respectable carat size? ›

A sweet spot in the compromise between size and price, diamonds around the 0.70-ct mark make great engagement ring stones.

How can you tell if a 3 carat diamond is real? ›

If you have a loose diamond to test, fill a regular glass about ¾ of the way full with water. Gently drop the diamond into the glass. If the diamond sinks to the bottom, it's real. If it floats at the surface or just underneath, it's likely a fake.

How small is too small for an engagement ring? ›

Is my engagement ring too small? If your ring is creating a permanent indent on your finger, that is a sign that it's too tight and needs to be sized up. If you wear your ring to bed and you can't get it off in the morning, that's normal.

What is the size difference between 0.3 and 0.5 carat diamond? ›

Diamond size comparison

Here you can see the actual sizes of 0.3ct Round (4.35×4.35×2.62mm) and 0.5ct Round (5.16×5.16×3.11mm) as they would appear on a ring and finger. 0.5 carat Round (5.16×5.16×3.11mm) has approx. 41% more face-up area than 0.3 carat Round (4.35×4.35×2.62mm).

What is the difference between 0.3 and 0.4 carat diamond? ›

0.4 carat Round (4.79×4.79×2.89mm) has approx. 21% more face-up area than 0.3 carat Round (4.35×4.35×2.62mm).

What is the most popular diamond carat size? ›

The average total carat weight for an engagement ring in the U.S. hovers just over 1 carat, at 1.08 carats. The range of 1.0 to 1.9 carats is by far the most popular, but there are noticeable peaks at the 0.70 – 0.79 range, the 0.90 – 0.99 range and the 1.50 – 1.59 range.

How much is the cheapest diamond? ›

Diamond Prices

For example, the cost of a one carat diamond can range from just $1,500 to more than $16,000 for an extremely well-cut, high-quality diamond, while a two carat diamond could cost as little as $6,000 or as much as $80,000 based on its shape, cut, clarity and color grades.

How small is .03 carat diamond? ›

diamond trade shows
MM SizeCarat Weight
1.5 mm.0.015 ct.
1.75 mm.0.03 ct.
2 mm.0.06 ct.
2.25 mm.0.08 ct.
16 more rows

How many carats is 4.3 mm? ›

0.39-0.43cts = 4.7-4.8mm0.39-0.43cts = 3.9-4.1mm1.00ct = 7X5mm
0.44-0.47cts = 4.8-4.9mm0.44-0.47cts = 4.1-4.3mm1.25ct = 7.5X5.5mm
0.48-0.52cts = 5mm0.48-0.52cts = 4.3-4.5mm1.50ct = 8X5mm
0.53-0.59ctsct = 5.2mm0.53-0.59ctsct = 4.6mm2.00ct = 8.5X6.5mm
22 more rows

How big is a 4.2 mm diamond? ›

Round DiamondsRound Diamonds
Round CutDecimal Inch
4.0 mm.158 inch2.65 carat
4.1 mm.162 inch2.85 carat
4.2 mm3.00 carat
28 more rows

How many carats is 4.4 mm? ›

The Diamond Carat Size Chart
Carat Size:0.25 ct0.50 ct
Cushion4×3.5 mm5×4.5 mm
Princess3.5 mm4.4 mm
Oval5×3 mm6×4 mm
Emerald4.5×3 mm5.5×4 mm
6 more rows

What is the mm size of a 3 carat round diamond? ›

3 Carat Round (9.37×9.37×5.65mm)

Can you tell if a diamond is real by its sparkle? ›

Two other quick and simple ways to spot a real diamond is by looking at how it sparkles in light and how much you can see through it. A real diamond appears gray and white inside (brilliance) when held to the light and can reflect rainbow colors (fire) onto other surfaces.

Are old diamonds more valuable? ›

As diamonds age from 100 years to 120 years old and we move further away from the 20th century, these old cuts will not only become more scarce but also more valuable. As an example, jewelry from the 17th century and older is extremely valuable and rare.

Can a jeweler tell how old a diamond is? ›

Jewelry professionals can identify the time period of a diamond by examining the shape and facets of the stone. Diamond cuts have evolved from early old mine diamond cuts to today's brilliant-cut diamonds. Trained professionals will be able to analyze the diamond to determine its approximate age.

What is the minimum carat diamond for an engagement ring? ›

One of the decisions to be made when considering the purchase of an engagement ring is how many carats should the ring be? The average according to The Knot (a research company and website for all things wedding) is 1 to 2 carats. There is no rule. Developing a budget is always a good place to start.

What is the ideal carat size engagement? ›

Depending on where you live the average engagement ring size will vary. The 1.0 carat center stone used to be the most desired size chosen for engagement rings, however, more recently we are seeing this shift towards a slightly larger stone, with couples choosing diamonds averaging 1.25 to 1.50 carats.

Is a 0.33 carat diamond big enough? ›

The face-up size of this 0.33 carat Round (4.49×4.49×2.71mm) is within the normal range for 0.33ct diamonds of this shape. Compared to 0.33ct Round reference diamond (see below), this diamond is of adequate size when viewed from the top. In short, all is OK, this diamond looks its weight.

What setting makes a diamond look biggest? ›

Bezel setting: In this setting style, a band of metal surrounds the diamond's girdle. As a result, the diamond's circumference may appear to be larger. Bezel engagement ring settings also afford extra protection against accidental bangs and bumps. TIP: The bezel setting is generally used for round and oval diamonds.

How many carats is Meghan Markle's engagement ring? ›

The cushion-cut center diamond of Meghan's engagement ring is estimated to be roughly three carats and was sourced from Botswana — a country that is very important to Prince Harry and where the couple took their first vacation together.

Which cut of diamond is most expensive? ›

The most expensive diamond cut is the round brilliant because it wastes the highest amount of rough stone – around 60% on average – during the cutting process. This large quantity of discarded material means that consumers will pay for a larger stone than they end up with to help cover costs.

Do you want high or low carat? ›

Diamonds are extremely valuable, and the higher the carat, the more valuable they are. The value of a diamond increases with carat weight because the supply of larger diamonds is far less than the supply of smaller diamonds.

Does half a carat make a difference? ›

Diamond Prices Have an Exponential Relationship With Carat Weight. Diamond prices jump at every 10 points (0.1 carat). For example, a 0.50 carat diamond would cost about 30% more than a 0.40 carat diamond with similar specifications. Yet, the real difference in size between these 2 stones is roughly 0.4mm.

Is there a big difference between 2.5 and 3 carat? ›

A 2.5 carat round diamond has a diameter of 8.9mm, this makes it look visibly larger than the 2 carat round diamond, which is 8.1mm in diameter. When compared to a 3 carat round diamond, however, the difference is barely noticeable; as the 3ct has a 9.3mm diameter.

What is the average round diamond carat size? ›

Typically the average carat for a diamond engagement ring is anywhere from 0.5 carats to 1 carat.

How many mm is 0.33 carat diamond? ›

Depth percentage for 0.33 carat Round (4.94×4.94×2.98mm)

How much should he spend on an engagement ring? ›

General Rule: You should spend at least 2 months salary on the engagement ring. If, for example, you are making $60,000 per year, you should spend $10,000 on the engagement ring.

What is the most common engagement ring size? ›

The gem's carat is the unit that measures its weight, which can influence how big it appears. According to our study, the average engagement ring size is 1.5 carats. Roughly half of all engagement rings fall between 1 and 2 carats, with just 25% of rings sizing above two carats.

How many carats is Princess Diana's engagement ring? ›

Known as one of the most famous and recognized pieces of jewelry in history, the ring is a 12-carat, oval Ceylon blue sapphire, framed by a halo of 14 diamonds, and set in 18-carat white gold.

What is the average ring size for a woman? ›

The average women's ring size is 6 and the average men's ring size is 8½ Guessing your partner's ring size correctly can be done with a little common sense. If you have a petite partner, it's likely that their hands are smaller with slender fingers, so try starting at a size 4 or 4½ for women, and around a 7 for men.

How much is my 3 carat diamond worth? ›

What Do 3 Carat Diamond Rings Usually Cost? 3-carat diamonds are extremely desirable for diamond engagement rings because of their size, which is noticeably large, but not overbearing on the hand. A diamond of this carat weight will range from $30,000 – $120,000 for an individual stone.

How much is a 3 carat pure diamond worth? ›

How much is a 3 carat diamond? There is a wide variation of price for a 3 carat diamond, depending on the grade of the stone. Three-carat diamonds start around $20,000 and go up to around $124,000 or more.

How much should a 3 carat diamond weigh? ›

A 3-carat diamond weighs 600 milligrams or 0.6 grams. To put this into perspective, a 3-carat diamond weighs about as much as a raisin. This weight may seem small, but is a very respectable size for diamonds.

How much can I sell a .25 carat diamond? ›

25 Carat Diamond Worth? A 0.25 Carat diamond is worth between $275 to $440. However, this price is subject to fluctuation and change based on market factors.

What is .33 carat diamond? ›

The two decimal positions are correctly described as points, for example a 0.33ct diamond is described as a thirty three pointer which put simply means 33% of one carat.

Is .25 carat diamond too small? ›

At 0.25 cts, a round diamond measures about 4 mm in diameter, a great size for a noticeable but not showy pendant. For some petite frames, this might be the ideal size for dress-up/dress-down staple jewelry.

How many mm is a 30 cent diamond? ›

More Views. This diamond pack has 1 piece, 0.30 carats G-H SI diamond of 30 cents/0.30 carats (approx diameter: 4.30 mm), sealed in a secured box, along with a card certificate.

What is a reasonable carat size? ›

Tip #1: Standard & Average Sizes

The 1.0 carat center stone used to be the most desired size chosen for engagement rings, however, more recently we are seeing this shift towards a slightly larger stone, with couples choosing diamonds averaging 1.25 to 1.50 carats.

How do I find out how much my diamond is worth? ›

A diamond's value is determined by its famous 4Cs: carat weight, color, cut, clarity. A value of a diamond is determined by an appraiser using these four dimensions while the value of a diamond ring adds the additional element of the quality of the band.

How many carats can $20 K buy? ›

For $20,000, you'll be able to afford a diamond between 2-2.50 carats, without sacrificing much in any other areas. For a $15,000 engagement ring, however, you're looking at 1.50-1.80 carats as the sweet spot for all-round beauty and value, and to be able to pair with a gorgeous setting.

How big is a .31 carat diamond? ›

General size appearance:
Signature shape characteristics:Circular outline, most brilliant of all diamond cuts
Carat weight:0.31 ct
Gram weight:0.06 g (0.0022 ounces)
Points:31 pts
Measurements (L/W/D):4.43 x 4.39 x 2.68 mm
12 more rows

What is the lowest carat diamond you can get? ›

Explore all carat sizes. At Shining Diamonds, customers can choose from a variety of diamond carat weights ranging from 0.25ct to 1.00ct. This is the most popular carat weight range, but if needed, we can also source carat weights larger than 1.00ct.

Why are small diamonds so cheap? ›

They're cheaper because they're much much easier to make than solitaires. Those tiny diamonds are known as “smalls” in the industry, and they're often made from the leftovers of bigger diamonds.

Top Articles
Latest Posts
Article information

Author: Frankie Dare

Last Updated: 30/05/2023

Views: 6164

Rating: 4.2 / 5 (73 voted)

Reviews: 88% of readers found this page helpful

Author information

Name: Frankie Dare

Birthday: 2000-01-27

Address: Suite 313 45115 Caridad Freeway, Port Barabaraville, MS 66713

Phone: +3769542039359

Job: Sales Manager

Hobby: Baton twirling, Stand-up comedy, Leather crafting, Rugby, tabletop games, Jigsaw puzzles, Air sports

Introduction: My name is Frankie Dare, I am a funny, beautiful, proud, fair, pleasant, cheerful, enthusiastic person who loves writing and wants to share my knowledge and understanding with you.