How are Lab Grown Diamonds Sized? Millimeters or Carats?

When measuring lab grown diamonds, what holds more importance – millimeter size or carat weight? This is one of the most common questions that customers grapple with.

While diamond carat weight is the most common measurement, it is essential to consider its millimeter size as well. Why?

Let’s find out when carat weight and MM size matter in lab made diamonds, and how each affects lab grown diamond pricing, visual appearance, and performance.

Read on!

Understanding Lab Grown Diamond Carat Weight and Millimeters

What is Carat Weight?

Carat weight can tell you the weight of your lab grown diamonds. In other words, how heavy are your lab diamonds? For instance, a 1 carat lab grown diamond weighs 200 milligrams. Typically, the more the carat weight, the heavier the diamond, and the higher its price.

What is Millimeters?

Millimeters of lab cultured diamonds indicate its width. It is the distance across the widest part of the lab made diamond. So, which part do you measure? When you look at the diamond from the top or bottom, measure the widest part.

What is a Lab Grown Diamond Size Chart?

A lab grown diamond size chart shows the millimetre size against the carat weight of each diamond. To be able to choose a lab diamond it is essential to know both the carat weight and the millimetre size. Moreover, these aspects also determine the price of the diamond and help make a choice based on one’s budget. The carat weight and millimetre size vary based on lab grown diamond shapes.

What is the Depth Percentage in Diamond Sizing?

Depth percentage measures the amount of light reflected back from a lab grown diamond. It is calculated by dividing the depth of the diamond by its width. This measure also helps select diamonds. For instance, if you want a lab made diamond that is seemingly large, you must pick a diamond with a lower depth percentage.

What are Pointers in Lab Grown Diamond Terminology?

Pointer refers to the carat size and millimetre of the lab cultured diamond. When diamonds weigh under one carat, they are referred to as pointers. Let’s understand pointers with some examples. A one pointer is a 0.01 carat diamond, a two pointer is a o.2 carat diamond, and a twenty-five pointer diamond refers to a 0.25 carat diamond.

Lab Grown Diamond Shape and Cut Impact on Size

The shape and cut of a diamond matter a lot when determining its size. For instance, the cut influences the diamond’s perception of size, visually. When a diamond is cut well, its weight is evenly distributed across its girdle. This makes it look larger.

Conversely, when the lab diamond is not cut well, its weight gets concentrated in the lower half, and this may make the diamond appear smaller.

The same applies to diamond shapes. Shapes that have more facets may be smaller in size and weight, or they may appear so when compared to diamond shapes that have lesser facets.

Millimetre Size or Carat Weight: Which Measurement Should you Use?

• When buying a diamond, you must consider the four Cs of diamonds. You should also consider both MM size and carat weight of the diamond.

• Both millimeter size and carat weight are important factors when buying, assessing, and measuring diamonds. These factors also help determine lab grown diamond pricing.

• If you want to purchase a lab cultured diamond that visually looks bigger than it is, you must go for a diamond that has higher MM size and lower carat weight. With this approach you can buy a larger-looking diamond at a lower cost.

• Carat weight holds immense importance in diamonds and many people prefer to buy lab grown diamonds with higher carat weight. Personal preference for higher carat weight is one of the most common factors that influences purchase decisions.

• Based on expert suggestions, one must consider both MM size and carat weight when choosing lab made diamonds. This way, you can get a diamond that matches your aesthetic and budget considerations.

Over to you

Both millimeter size and carat weight are important factors when buying, assessing, and measuring diamonds. These factors also help determine lab grown diamond pricing, their visual appearance, and performance under different lighting.

Looking to buy lab made diamonds? Head to Grown Diamond Corporation to explore a wide range of diamonds. Get in-depth details about millimeter size and carat weight of each diamond and make an informed purchase decision with confidence.