Diamond Learning Gemstones and Birthstones

What is the anatomy of a diamond?

The anatomy of a diamond: what Is a facet, crown, pavilion, table, girdle, and culet? 

Whether you’re looking to buy a diamond, or are just interested in their make-up, Understanding the anatomy of a diamond is crucial for appreciating its beauty and determining its value. In this article, we will delve into the key components of a diamond, including its facets, crown, pavilion, table, girdle, and culet. Up your diamond knowledge, with our handy, easy to understand guide to a diamond’s anatomy. 

What is a facet? 

A facet is any flat surface on a diamond that has been cut and polished to enhance its ability to reflect light. Facets are meticulously crafted to maximise the diamond’s brilliance, fire (the dispersion of light into colours), and scintillation (the sparkle seen as the diamond moves in the light). The number and arrangement of facets play a significant role in the diamond’s overall appearance and are key factors in its cut grade. 

What is the crown of a diamond? 

The crown is the top portion of a diamond extending from the topmost facet, known as the table, down to the girdle, which is the widest edge of the diamond. The crown’s main function is to refract incoming light and disperse it into a spectrum of colours, enhancing the stone’s aesthetic appeal.  

What is the pavilion of a diamond? 

The pavilion is the bottom part of a diamond, stretching from the girdle down to the culet at the base. The pavilion’s primary role is to reflect light back through the top of the diamond to the observer’s eye, maximising the stone’s sparkle. 

What is the table of a diamond? 

The table is the largest facet of a diamond, located at the very top of the stone. It plays a crucial role in the diamond’s light performance by allowing light to enter and exit the stone, and the way it is cut determines how well it sparkles. 

What is the girdle of a diamond? 

The girdle forms the outer edge of the diamond, where the crown and pavilion meet. It can be polished smooth, faceted, or left natural, depending on the diamond’s cut style. 

What is the culet of a diamond? 

The culet is the smallest facet at the bottom of a diamond, which can be either pointed or flat. Although small, the culet plays a critical role in preventing damage to the pavilion. A well-cut culet helps in reflecting light within the diamond, contributing to its sparkle. If the culet is cut too large, it can be seen through the table, and will inhibit the diamond’s brilliance. 

Which is the most important part of the diamond? 

Each part of a diamond’s anatomy, from the facets and crown to the table, girdle, and culet, works in harmony to create the beautiful sparkle diamonds are known for. No part is ‘more important’ than any other part. The most important thing is that all the cuts are high quality by a skilled jeweller, to enhance the stone. If you have any other questions about your Diamond Store stones, get in touch with our friendly experts, here.