Diamond Size Guide

Diamond Size Guide

A simplified, easy-to-read guide showing the typical face-up sizes of popular diamond cuts. Actual measurements may vary slightly depending on cut proportions.

Oval Cut Diamonds

• 0.30ct each: approx. 5.1 × 3.4 mm
• 0.40ct each: approx. 5.8 × 3.8 mm
• 0.50ct each: approx. 6.6 × 4.4 mm

Round Brilliant Diamonds

• 0.30ct each: approx. 4.3 mm
• 0.40ct each: approx. 4.7 mm
• 0.50ct each: approx. 5.1 mm

Princess Cut (Square) Diamonds

• 0.30ct each: approx. 3.8–3.9 mm
• 0.40ct each: approx. 4.1–4.3 mm
• 0.50ct each: approx. 4.3–4.4 mm

Emerald Cut Diamonds

• 0.30ct each: approx. 6.0 × 4.0 mm
• 0.40ct each: approx. 6.5 × 4.5 mm
• 0.50ct each: approx. 7.0 × 5.0 mm

Baguette Diamonds

• Small: approx. 4 × 2 mm
• Medium: approx. 5 × 2.5 mm
• Large: approx. 6 × 3 mm

Note: Diamond sizes can vary slightly. These measurements represent typical face-up dimensions for well-proportioned stones.