A Complete Guide for Carat Size Chart

Get the Complete guide to Carat Size Chart for better informed decision of buying diamond.

The word diamond carat is derived from the Greek word “fruit of the Carob Tree,” according to Wikipedia.

he seed of the carob pod was in ancient times used as weight measuring criteria so the size of your seeds was almost always the same. This was a normal measuring standard.

In 1907, it was decided at the Fourth General Conference on Weights and Measures that a typical carat should exactly be equivalent to 200 milligrammes. The regular diamond carat weight, which is used universally today, is technically defined as a metric carat.

Does the Carat Size Chart Matters?

The reality is, it’s not necessary. Dream of it. Think about it. What does your eye see as you look at a diamond set in a ring? Is your eye looking into weight, or is your eye looking into body size? Obviously, the body can only see physical measurements – weight detail does not return to the eye.

The distinction between this diamond in G colour and this diamond H colour, for example, is not obvious. However, you can surely see the gap in this 1.50ct diamond between one carat and one carat.

Check out James Allen’s Carat Weight Tool if you are not sure how a certain carat size can look on your finger. They are diamond sizes with a quick drawing on a woman’s palm.

And if you think further about it, the absolute physical dimension of the diamond is still not seen in your eye so much of it would be coated in jewels. When you look at a diamond all you can really see is the size of the diamond top surface, as seen above in our diamond map.

It’s better that you ask one of our experts to help you. They will help you find the balance between “taking the largest diamond” and “doing no money to make carat sizes that are not apparent.”

It is the diameter for a circular diamond, and it depends on length and width for other types. For the sake of simplification, we will mention the diameter for the remainder of this essay, but what is written is also applied to non-round types.

Is Diamond’s Millimeter measurement important?

Yes, It is very important. A millimetre diamond size suggests its true dimensions. This is because a diamond with the same carat weight will have subtly different faces and so look bigger than an equal carat weight. If you like a diamond that looks bigger, try having a diamond in fantastic shape: Types like emerald, oval and pear are often larger than their spherical counterparts.

In addition, you’ll want to look at the millimetre dimensions, if you buy a diamond for a current ring setting. You will have to choose a diamond with a precision millimetre scale, depending on the setting type.

In the purchase of non-round diamonds like cushion and emerald, millimetric dimensions are necessary to note. This is because the measurements in the millimetre reflect when a cushion diamond is square; more rectangular scales are given for emeral diamonds.

(To see all the carat weights for well-cut diamonds, see our gem diamond sizing charts below.)

Diamonds will still be determined by weight and millimetres on the certificate of the diamond when shopping for diamonds. We offer GIA certificates for all of our natural diamonds and IGI certificates for all our laboratory diamonds with Clarity. With Clarity.

Do you Know Pointers?

One word for trading and wholesale is indicators, which corresponds to certain millimetres of scale and carat weights. A single point means a diamond of 0.01 carat. A diamond with two points is a 0.2 carat stone and so on. Usually, these terms will be used to describe smaller diamonds on diamond rings or jewellery. Although each diamond is special, make sure you have the right choice in average millimetre sizes of diamond carat weights.

Different Carat Size Chart for Different Diamond Cuts

Different Diamond cuts have different carat size. Carat Size Chart is given below for Princess Diamond cut and Cushion diamond cut. you can compere the carat size chart for better understanding of the same. Make sure that you read the Carat Size chart carefully.

Princess Diamond Cut

The most important competition for a dazzling round cuts are the princess-cut diamonds. The perfectly square form gives a nice, sharp alternative to a rounded diamond and therefore costs far less than the circular cut of a princess-cut diamond. The price represents savings of the Jeweler. (This is because more rough diamond was used, not wasted.)

The princess diamond cutting feature is light output depending on height. A princess’ cut may have an unspoiled sparkle of any scale (due partly to retaining the original raw diamond), but the brighter the diamond is, the bigger the facet.

MM Size	Carat Weight
1.5 mm	0.015 ct.
1.75 mm.	0.03 ct.
2.00 mm	0.06 ct.
2.25 mm	0.08 ct.
2.50 mm	0.10ct.
2.75 mm	0.13 ct.
3.00 mm	0.18 ct.
3.25 mm	0.26 ct.
3.50 mm	0.29 ct
3.75 mm	0.31 ct
4.00 mm	0.39 ct
4.25 mm	0.44 ct
4.50 mm	0.50 ct
4.75 mm	0.64 ct.
5.00 mm	0.75 ct.
5.25 mm	0.075 ct
5.50 mm	1.00 ct
5.75 mm	1.11 ct.
6.00 mm	1.25 ct.
6.25 mm	1.39 ct.
6.50 mm	1.50 ct.
6.75 mm	1.75 ct.
7.00 mm	2.00 ct.

Cushion Diamond Size

The diamond is a balance between the rectangular diamond and the pointed tip and edge shapes (princess, rectangle, etc.). The cushion is a vintage, but is now one of the five most popular diamond cutting systems. Cushion cutting is particularly prominent in royalty and famous jewellery.

The modernisation of the cushion cut reduces to unnoticeable ratios the culets which have been detracting from the charm of the original diamond, thereby reducing the aspect to smaller and more delicacy. Cushion-cut diamonds display more faceting and transparency with growing dimensions.

MM Size	Carat weight
4.2 mm.	0.40 ct.
4.9 mm.	0.50 ct.
5.25 mm.	0.75 ct.
5.5 mm.	1.00 ct.
6 mm.	1.25 ct.
6.5 mm.	1.50 ct.
7 mm.	2.00 ct.
7.5 mm.	2.50 ct.
8 mm.	3.00 ct.
8.5 mm.	3.50 ct.
9 mm.	4.12 ct.
9.5 mm.	5.09 ct.
10 mm.	5.62 ct.
11 mm.	7.44 ct.
12 mm.	9.52 ct.
13 mm.	12.66 ct.

Carat and Diameter Correlation

Now, of course, the diamond carat diameter is directly correlating with the diamond diameter. A 0.05ct diamond can’t have more surface than a 1 carat diamond mathematically.

But because the cuts can differ tremendously, the number of potential diameters for each individual carat weight varies immensely.

As I know from my Leo Schachter experience, a 1 carat diamond ring will measure up to approximately 6.60mm (a shallow, flat diamond) from 5.60mm (a horribly hideous deep diamond).