The round brilliant and oval are the two most popular diamond shapes in 2026. Both offer exceptional sparkle, but each has unique characteristics that may suit different styles and preferences.
Round Brilliant
The round brilliant is the most popular diamond shape, accounting for over 60% of all diamonds sold. Its 58 facets are mathematically optimized for maximum light return, making it the most brilliant of all diamond shapes.
Best for: Classic taste, maximum sparkle, versatile settings
Oval
The oval diamond offers a modern alternative to the round. Its elongated shape creates the illusion of greater size and makes fingers appear longer and more slender.
Best for: Modern style, larger appearance, flattering on the hand
Key Differences
| Factor | Round | Oval |
|---|---|---|
| Brilliance | Maximum | Very High |
| Perceived Size | Standard | 15-20% Larger |
| Price per Carat | Highest | 10-15% Less |
| Style | Timeless Classic | Modern Elegant |
Browse our round diamond and oval diamond collections to compare in person.