When investing in diamond earrings, prioritize the stones’ cut quality first, as it most significantly impacts brilliance and visual appeal. Clarity becomes important at VS2 and above, where inclusions remain invisible to the naked eye. Color grades D-G provide excellent value while maintaining a white appearance in most settings. Carat weight affects cost substantially, but two smaller, top-quality diamonds often provide better sparkle than larger stones with inferior characteristics. Additionally, matching parameters between both stones ensures a balanced, harmonious appearance that maintains value over time.