MM to CT Size Charts - MM to Carat Weight Conversion

When a specific jewelry style or setting requires a certain stone size, it is important to understand how big a diamond really is, millimeter size. This is critically important around the purchase of non round diamonds like emerald or cushion cuts where millimeters seems the stone’s square or rectangular proportions. Knowing the true value of diamonds is not just about a radiant sparkle or tail.

Why is it important to measure a Millimeter?

Millimeters instead raise a more accurate way to measure a stone’s size, since carat weight can vary because of the facets, shape and cut.

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If you want to buy a bigger looking diamond (one that appears bigger when viewed from above) then you will want to look at the fancy shapes, such as emerald, pear or oval cut. What you often find is these shapes seem to be larger cuts.

What are Pointers?

For gemstones, a carat is 200 milligram. The measurement is precise down to the hundredth decimal place, so one carat subdivides into 100 points.

Diamond cut, diamond color, diamond clarity, and diamond weight – or carat in diamond speak – are all components of what we call the 4Cs of diamond: cut, color, clarity, and carat.

Oval-Cut Diamonds

The oval cut is explicitly the same as the classical round brilliant cut, only elongated somewhat, which can make it appear a little larger. 

The facets do all it can to maximize its brilliance by means of having 58 of them. Inserts such as oval diamond rings and other jewelry are elegant, and can be flattering on the wearer. To find the size of stone however, this carat to millimeters chart could be used.

Cushion Cut Diamonds

The stone has 58 facets which makes the stone giving it the attractive brilliance and appearance. Knowing the true size of a cushion cut diamond, this mm to ct conversion will come in handy.

Pear Cut Diamonds

The pear shaped diamond, otherwise known as a modified brilliant cut, is a mixture of the oval and Marquise cut with pointed end and rounded end. The real size of your pear shaped stone can be estimated with this diamond mm to carat.

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Princess-Cut Diamonds

The 57 facets it possesses often make it regarded as a modern alternative to a round brilliant. With this princess cut diamond mm to carat chart, you can determine the true size of a princess cut diamond.

Heart Cut Diamonds

The most high demand shape is the heart shaped diamond. The stone has 57 triangular and kite shaped facets, which give the stone its fire and brilliance. The chart will help you size your heart shaped diamond.

How Many MM is 1 Carat?

The difference in size of a one carat stone will vary considerably depending upon the shape of the stone. If the diamonds in question are within exactly the same distance from side to side and top to bottom, we’re talking about an ‘round’, ‘square’, etc. bit of a round diamond, for example, then a 1 carat stone will be roughly 4.5 to 5.5 mm. A one carat would be about 10x5 mm for fancy elongated shaped diamonds.

In fact, I have used MM to create conversion charts a million times! With use of MM to carat conversion charts, you can work out the carat weight of a diamond, based on its diameter.

READ MORE :: Round Diamonds Carat Size Chart in MM