A striking 6.55-carat cushion-cut tourmaline from Afghanistan, displaying a vivid lagoon blue color with bright bluish green to teal tones. The stone has a pleasing cushion outline with softly rounded corners and lively faceting that enhances its strong color and brilliance. With eye-clean clarity and no treatment, this tourmaline has a fresh, attractive appearance and excellent visual appeal. A beautiful natural gemstone suitable for collectors or custom jewelry use.