1.80 Carat Natural Loose Lagoon Tourmaline Stone Emerald Cut Afghan Gemstone

Mined from the famous gem-bearing pegmatites of Afghanistan, this 1.80 Carat Natural Loose Lagoon Tourmaline displays a highly coveted lagoon-green color profile, beautifully balancing vivid mint-green hues with cool, shimmering cyan-blue undertones. Precision-crafted into a sophisticated emerald cut, its clean rectangular silhouette and parallel step facets produce an elegant "hall-of-mirrors" optical display that highlights the gemstone's exceptional crystal transparency and rare color purity. The stone boasts superior eye-clean clarity, allowing light to traverse fluidly through its geometric interior without dark extinction zones or clouding. Completely natural, unheated, and untreated, this pristine 1.80-carat Afghan tourmaline pairs a sought-after oceanic shade with refined architectural proportions, making it an extraordinary centerpiece for a custom engagement ring, a solitaire pendant, or a fine gemstone portfolio.