Choose the diamond cut: The diamond cut affects the diamond's appearance and brilliance. Consider popular cuts like round, princess, and cushion, and choose one that complements your girlfriend's style.
Choose the ring setting: The ring setting affects the overall design and security of the diamond. Consider popular settings like prong, bezel, and channel, and choose one that complements your girlfriend's style.
Consider the four Cs of diamond quality: Cut, color, clarity, and carat weight are the four Cs that determine a diamond's quality and value. Consult with a trusted jeweler to find the right balance between these factors and your budget.
