Frank Darling is a jewelry brand that specializes in custom-designed, unique engagement rings. They offer free design consultations in their New York City studio, where customers can work with their team to create a one-of-a-kind ring. Frank Darling uses sustainably sourced materials and conflict-free or lab-grown diamonds, ensuring their products are ethically and responsibly produced. Their focus is on providing customers with a personalized, high-quality engagement ring that reflects their individual style and values.