How to Select an Engagement Diamond

Learn How to Select an Engagement Diamond

The traditional choice for engagement rings is typically diamonds. They are timeless and classic – the most popular kind of gem. They’re also long-lasting and very durable. There are many different kinds of diamonds to choose from, and it’s important to find the right one that your fiancée will cherish the rest of her life.


Choosing a shape should be your first priority when you’re selecting a diamond. If you’re not sure what kind of shape to choose, here’s a helpful tip: due to their light performance, fire, and incredible brilliance, round diamonds are the most popular choice by far. This type of diamond offers incredible sparkle and makes up about three-fourths of all the diamonds sold.



Princess diamonds are angular in shape and offer a gorgeous contemporary beauty in geometric and classic settings. They are the second most popular style because they offer the exquisiteness of a brilliant round diamond at a significantly lower price.

If you’re looking for a vintage-inspired diamond, a cushion diamond might be right up your alley.

A magnificent alternative to both cushion and princess diamonds are radiant diamonds which are rectangular in shape. They don’t emit as much sparkle or fire as the round diamonds. They’re more transparent. Some other distinctive shapes include pear-shaped, oval, and marquise diamonds. These diamonds give a woman’s fingers the appearance of being slenderer and longer because the ring’s appearance is elongated.

If you’re looking for a diamond that will express your sentiment, heart-shaped diamonds are largely in favor with romantics.

Pear-shaped and marquise diamonds show more of the stone from the top view of the diamond which is why they appear to be larger than they really are.

According to supply and demand, you can choose a non-round diamond for up to 40% off. Ten different classic diamond shapes are offered at Brilliant Earth. If you would like more information about our other diamonds including half-moons, baguettes, or trillions, please contact us.


There is one more set of considerations you need to take into account – the quality of the diamond and the size of the gem. You must determine what’s more important to you given your current budget – the quality of the diamond, the size of the diamond, or a tradeoff. The most apparent aspect of a diamond is the visual size of it. Be aware that the unit of weight for a diamond is a carat, which can be used for the approximate size of a diamond. As seen face up, the measurements of a diamond can also be a helpful indication of the actual dimensions.



One of the most important characteristics of quality in a brilliant round diamond is the cut. The cut impacts the scintillation, fire, and brilliance of the diamond. If your diamond’s cut and workmanship are poor in quality, the diamond itself will look lifeless and dull. Cuts are typically easy to assess on brilliant round diamonds because the diamond is graded formally by independent diamond laboratories. The cut is much more subjective for other diamond shapes. Brilliant round diamonds are typically recommended for engagement rings because they have cut grades of super ideal, ideal, or very good (otherwise known as hearts and arrows). For a given carat weight, choosing a high-grade cut maximizes the true beauty of the diamond.

If you plan to choose a round diamond, you must be extremely careful. You do not want a round diamond to be cut too shallow or too deep. If a round diamond is cut too shallow, light will strike the pavilion of the diamond at a low angle, causing the light to travel through the diamond and exit through the sides. The diamond will lack fire and brilliance due to the large amount of escaping light. If the diamond is cut too deep, light strikes the pavilion at a much sharper angle, which will prompt the light to reflect to another pavilion and exit toward the bottom of the diamond. The diamond will also become dull instead of radiant.


Some other characteristics of quality you’ll need to decide on include the clarity and color of your diamond. The majority of people prefer colorless white diamonds or colors that aren’t very detectable to an untrained eye. Other individuals may vary in their ability to observe differences in color. The F-H color is the most common color grade selection for the engagement ring’s center diamond.


The last characteristic that’s determined is the clarity of the diamond. The clarity minimally impacts a diamond’s appearance. There are visible inclusions for some of the SI1 and SI2 graded diamonds. Brilliant Earth will call you if the diamond you have selected has an inclusion that can be seen with the naked eye. The majority of Brilliant Earth’s customers choose VS2 or SI1 clarity grades for their engagement ring’s center diamond. If clarity is important to you, some customers will go as high as the VVS or IF clarity grades for their engagement rings.


You should always try to choose a diamond that includes a certificate with an independent diamond rating from a trusted gemological laboratory. Independent assessments guarantee that you will receive exactly what you’re paying for. Compared with evaluations done by other laboratories, bear in mind that any evaluations done by the European Gemological Laboratory (EGL) are typically more lenient. It’s recommended that you should strike a balance between the quality of the diamond (clarity, color, and cut) and the size of the diamond (represented by carat weight). We have an online interface on our website which makes deciding all of these factors easy. You can learn more about our diamonds and get advice from our jewelry specialist on how to purchase our diamonds on our website.