Citrine engagement rings? Absolutely! Diamonds may be a girl's best friend, but Citrine engagement rings are a unique, original, and a far more affordable choice. November's birthstone, citrine sparkles like honey. Carry the warmth and glow of a golden sunset with you by wearing a beautiful citrine ring. The birthstone of May, an emerald ring symbolizes the eternally returning spring. The velvety green color of emerald is a perfect match for spring and summer fashions.