How much is a .03 diamond worth?
The average price of a 0.3 carat diamond is currently $557 (see price chart below). 0.3 carat diamonds can cost anywhere from $415 - $699 depending on the diamond's shape, color, clarity, and other factors.
A well cut 0.03ct Round should have an average diameter between 1.97 and 2.05 mm.
0.5 carat diamonds can cost anywhere from $924 - $1,594 depending on the diamond's shape, color, clarity, and other factors.
The most popular carat size that people choose is about 0.3 carats. The reason for its popularity is due to the abundance of designs for a 0.3-carat diamond. Unlike a big diamond, a small diamond is lighter in weight and requires lesser support to hold it in place, giving the jeweler more options for unique designs.
Tiny diamonds worth $300 to $400 per carat. Tiny diamonds or small loose diamonds are also known as melee diamonds.
Rule of thumb: A 1-carat diamond can cost as low as $2,000 and as high as $25,000. That means a middle-of-the-range diamond should be $11,000 - $12,000. Sounds simple, but that is overpaying. A good value, good quality 1 carat diamond should cost you around $4,500 - $6,000.
Compared to 0.03ct 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.
A 2mm Round Diamond is approximately 0.03 carats in weight.
MM Size | Carat Weight |
---|---|
1.8 mm. | 0.025 ct. |
2 mm. | 0.03 ct. |
2.25 mm. | 0.04 ct. |
2.5 mm. | 0.06 ct. |
A well cut 0.05ct Round should have an average diameter between 2.33 and 2.43 mm. Compared to 0.05 carat Round reference diamond, this diamond appears too small when viewed from the top, which makes it a chubby.
How much is a 0.25 diamond worth?
A 0.25 Carat diamond is worth between $275 to $440.
Carat Weight, Clarity, Cut, & Color All Determine a Diamond's Value. As we have demonstrated, there are many factors that determine a diamond's value. Carat weight, cut, clarity, and color are all components that a skilled GIA grader uses when a diamond gets it's grade.

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.
0.3 Carat Round (4.35×4.35×2.62mm)
This is one of the highest clarity grades available and represents a fine investment. Color : G G grade diamonds appear nearly colorless to non diamond experts. This grade offers excellent value for money.
1mm - 1.7mm (0.005cts - 0.02cts) Prices from £3 - £12 per stone, depending on size and quality of Diamond. 1.8 - 2.6mm (0.025cts - 0.07cts) Prices from £10 - £40 per stone, depending on size and quality of Diamond. 2.7 - 3.3mm (0.08cts - 0.13cts) Prices from £40 - £90 per stone depending on size and quality of Diamond.
The bottom line when it comes to 1 carat diamond price:
The price of a 1 carat diamond in the UK can range from around £3,000 to over £20,000, depending on the shape, quality and where you buy it from.
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.
Find a normal sized drinking glass and fill it ¾ of the way with water. Carefully drop the loose stone into the glass. If the gemstone sinks, it's a real diamond. If it floats underneath or at the surface of the water, you have a fake on your hands.
Diamonds increase in value over time and don't offer short-term results. In fact, like other physical commodities, the price of diamonds fluctuates from time to time. The second mistake people often make is to pay too much. The first rule of investing is buying low and selling high.
Are diamonds worth more now than 20 years ago?
Yes, the average diamond price has increased from 1960 to today. However, there's also been cumulative inflation of more than 700% over the same time period, meaning that the true appreciation in value of a diamond is very small.
0.70 Carats
A sweet spot in the compromise between size and price, diamonds around the 0.70-ct mark make great engagement ring stones. A diamond budget of about $2,000 can get you a fine diamond at this weight. A band that tapers near the center stone will also make your diamond appear larger.
The smallest brilliant cut diamond weighs 0.0000743 carats, hand cut by Pauline Willemse, at Coster Diamonds B.V. in Amsterdam, Netherlands, between 1991 and 1994. The stone is 0.16-0.17mm. (0.0063 - 0.0067 in.) in diameter and 0.11 mm.
The average diamond carat weight is 0.90 ct but can also be between 1.08 carats to 1.5 carats. This will really depend on your cut and budget along with the color and clarity selected.
Shape | Carat Weight | Millimeter Size |
---|---|---|
Round | 1.00ct | 6.5mm |
Square Cushion | 1.00ct | 5.9mm |
Princess | 1.00ct | 5.5mm |
Asscher | 1.00ct | 5.5mm |
The short answer: A 1.00-carat diamond can range in price from about $1,000 to over $12,000.
On the other hand, the size of a . 5 carat diamond is approximately 5.2mm. Even though the carat weight is 50% of a 1 carat stone, it doesn't face up twice as small! Likewise, the physical size of a 2 carat diamond (8.2mm diameter) isn't twice as big as that of a 1 carat diamond (6.5mm diameter).
Is a 0.5-carat diamond big enough for an engagement ring? Yes, absolutely. In fact, it's a very good size for engagement rings – not too big and not too small. Just right, as Goldilocks would say.
The weight of smaller diamonds is called points. There are 100 points in a carat—another way to look at it is to say that each point equals 0.01 or one-hundredths of a carat. For example, 0.25 means twenty-five one-hundredths, and so a 0.25-carat diamond would equal twenty-five points of one-quarter of a carat.
A 1-carat round diamond is typically 6.5 mm, while a 1.25-carat round diamond is 6.8 mm. For square-cut diamonds like princess, cushion, and asscher, 1-carat is typically 5.5 mm and a 1.25 carat is 6 mm. Compare these two 1.01-carat diamonds. On the left is an oval-cut diamond, 7.96 mm long and 5.6 mm wide.
How much is a 3 carat diamond worth UK?
The price of a 3 carat diamond in the UK can range from around £25,000 to over £170,000, depending on the shape, quality and where you buy it from.
The weight of this stone is approximately 0.03 Carats or 3 points (100 points = 1 carat) This diamond measures 2mm and is in a classic round brilliant cut.
The diamond system of carat weight is decimal and always carried out at two decimal places. 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.
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 |
1mm - 1.7mm (0.005cts - 0.02cts) Prices from £3 - £12 per stone, depending on size and quality of Diamond. 1.8 - 2.6mm (0.025cts - 0.07cts) Prices from £10 - £40 per stone, depending on size and quality of Diamond. 2.7 - 3.3mm (0.08cts - 0.13cts) Prices from £40 - £90 per stone depending on size and quality of Diamond.
0.15 ct. 3.68 mm. Your diamond's cut allows some light to escape reflection, but still offers above average brilliance and fire. An economical choice for the diamond shopper on a limited budget, a Good Make reflects most light that enters it, offering beauty at an attractive value.
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.
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.
Well, most people do notice this subtle difference when they compare a 0.40 carat diamond against a 0.50 carat diamond. In contrast, the same physical difference of 0.4mm between a 1.50 carat diamond and 1.75 carat diamond isn't readily detected because of the way our brain works.
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Diamond weight and diamond sizes.
Round Brilliant Cut Diamonds | Diameter mm |
---|---|
0.10ct | 3.00mm |
0.20ct | 3.80mm |
0.25ct | 4.00mm |
0.30ct | 4.20mm |
Is 0.5 carat diamond too small?
Is a 0.5-carat diamond big enough for an engagement ring? Yes, absolutely. In fact, it's a very good size for engagement rings – not too big and not too small. Just right, as Goldilocks would say.
The smallest brilliant cut diamond weighs 0.0000743 carats, hand cut by Pauline Willemse, at Coster Diamonds B.V. in Amsterdam, Netherlands, between 1991 and 1994. The stone is 0.16-0.17mm. (0.0063 - 0.0067 in.) in diameter and 0.11 mm.