Round Brilliant Cut
The most popular diamond shape with 57–58 facets engineered for maximum light return.
Definition
The round brilliant cut is the world's most popular diamond shape, featuring 57 or 58 precisely angled facets designed to optimize light performance. Developed in the early 20th century, its proportions maximize brilliance (white light reflection), fire (spectral color dispersion), and scintillation (sparkle). It accounts for over 70% of all diamonds sold.
Why It Matters for Ring Design
Because it reflects the most light, round brilliants command a price premium of 10–30% over fancy shapes of the same carat weight. Clients who prioritize sparkle over size will prefer this cut.
Related Terms
Turn Knowledge Into Sales
RingBuilder.ai gives your clients an interactive ring design experience — capturing leads while they dream. Add it to your website in minutes.
Start Free Trial — No Credit Card