Engagement Ring Guide
AGS Ideal Cut Guidelines
Cut-focused grading that prioritizes light performance and symmetry, especially for round brilliants.
Diamond:natural
Engagement Ring Guide
GCAL 8X Diamond Report
Performance-forward report that adds optical symmetry and light behavior to the usual 4Cs.
Engagement Ring Guide
GIA Diamond Grading Report (Natural)
Gold-standard lab report for natural diamonds; defines the 4Cs plus proportions and plotting.