Cut
Cut (Polish)
Cut is one of the most important characteristics of a diamond. The quality of the cut and polish directly impacts the diamond’s brilliance, fire, and sparkle. Even a high-grade diamond can look dull if the workmanship is poor.
Why it matters: If a diamond is cut too shallow, too deep, or out of proportion, light leaks and the stone appears less bright — reducing both beauty and value.
What happens when a diamond is cut incorrectly
Many diamonds sold online and in mall stores are commercial-grade cuts. The differences can be hard to spot unless you’re experienced — which is why trusting the source matters.
Ideal cut vs cut too shallow vs cut too deep — light performance changes dramatically.
Understanding the anatomy of a diamond
Cut quality is influenced by proportion and symmetry — including crown height, pavilion depth, table size, and angles. These details affect how light reflects back to your eye.
Diamond anatomy: key measurements that influence brilliance and sparkle.
DHM Guarantee: We stand behind honest grading and transparent quality — backed by a 100% money-back guarantee.
The DHM difference
At Diamond History Museum, we operate and manage key parts of the process — including cutting, manufacturing, setting, polishing, and distribution — under one ecosystem. We believe in a direct manufacturer-to-retail experience, cutting out unnecessary middlemen and raising quality control.
We directly source and utilize only the world’s best diamonds and precious stones — jewelry truly fit for HISTORY.
Want help comparing diamond cut quality?
Speak with a specialist or explore the collection.