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How to Choose the Right Diamond Shape: A Beginner’s Guide

The term “diamond shape” pertains to the geometric attributes of a diamond. Generally, diamond shapes can be classified into two main groups: Round diamonds and fancy shape diamonds. Round shape, also known as the round brilliant cut, stands as the most widely favored and conventional cut by a significant margin, hence its classification as a distinct category.

In addition to round diamonds, there are various fancy diamond shapes to explore, including pear, heart, and trillion-shaped diamonds. Each shape possesses its unique qualities. In this article, we will discuss significant diamond shapes. However, before we proceed, let’s understand the difference between a diamond shape and a diamond cut.

Difference Between Diamond Shape and Diamond Cut

The term “diamond cut” is sometimes used to describe the shape of a diamond, which can be a bit confusing. This confusion arises because each shape has a technical name that includes the word “cut” (e.g., round brilliant cut).

A diamond’s cut refers to its facets, symmetry, dimensions, and reflective qualities. For instance, a heart-shaped diamond can be cut to varying degrees of shallowness or depth, dullness, or brilliance. These factors do not alter the shape of the diamond itself—it remains heart-shaped—but they significantly impact its cut.

A diamond’s cut quality directly influences its brilliance and fire, with a finer cut resulting in greater levels of sparkle and light dispersion.

Whereas diamond shape refers to the outline or external figure of the diamond, such as pear-shaped or cushion-shaped.

To find your ideal diamond, begin by selecting the desired shape and then focus on finding that shape in the most appealing cut.

6 diamond shapes to consider before the final purchase

Round Shape

The round brilliant diamond is the timeless favorite in the market. Its perfect symmetry and unparalleled brilliance make it highly sought after. GIA provides a cut grade specifically for round diamonds. It is crucial to opt for Excellent Cut rounds, as this characteristic directly impacts sparkle and brilliance. Excellent Cut rounds are exceptional at concealing color and clarity, allowing you to choose diamonds with up to two grades lower in those aspects.

Oval Shape

Oval-cut diamonds are frequently requested due to their elongated shape. The ratio of oval-cut diamonds can vary, from a shorter and rounder shape to a longer and thinner shape. Most people prefer a ratio in the range of 1.35-1.50. Oval-cut diamonds excel at hiding clarity imperfections but may exhibit warmth in the tips for I and J color grades. Choosing an oval diamond is an excellent option for those seeking the fire and brilliance of a round diamond with a touch of uniqueness.

Emerald Shape

The emerald cut diamond stands out with its unique appearance, achieved through step cuts on its pavilion and a large, open table. Unlike the sparkling brilliance of brilliant cuts, emerald cuts create an elegant hall-of-mirrors effect. 

Square Shape

Square-shape diamonds, also known as princess cut diamonds, are a popular choice for those seeking a modern and glamorous look. With their sharp corners and brilliant faceting, square diamonds offer a contemporary twist to traditional round cuts. The square shape maximizes the diamond’s carat weight, making it appear larger than other diamond shapes of the same weight. 

Pear Shape

The pear-shaped diamond, often referred to as a “teardrop,” features a single point and a rounded end. Its unique shape allows for a bold statement. Pear cuts tend to appear larger than other diamond shapes for their carat weight. Pears effectively hide inclusions but may exhibit warmth in their tips for lower color grades.

Cushion Shape

Cushion-shaped diamonds exhibit more variation in standards compared to other shapes. Although they are generally less brilliant than round brilliant diamonds, cushion-cut diamonds often display superior fire, which contributes to their appeal. The most prevalent modern cushion cut, also known as a Cushion Modified Brilliant, has an additional row of facets. This can create a crushed iced appearance. In contrast, a Cushion Brilliant has larger, fewer facets and sparkles more similar to a round brilliant. The preferred cushion shape is elongated, with a length-to-width ratio of 1.10-1.25. Cushions excel at hiding inclusions and are renowned for their soft, pillow-like shape.

If you require additional information regarding online diamond purchases, visit our comprehensive buying guide for loose diamonds.

If you are new to the diamond market, make sure to choose a reliable manufacturer who can guide you through all shapes and cuts. Uniglo Diamonds is one of the leading players in the diamond industry and has earned a great reputation for the past few decades. Get in touch with them to learn more about wholesale diamonds!

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