3.56 carats Natural Blue Tourmaline Gemstone | Cushion CutThis natural blue tourmaline weighs 3. 56 carats and displays a vivid blue green tone with excellent saturation and lively brilliance. The color is clean and bright, showing strong visual energy and an attractive glow across different lighting conditions. Cut in a cushion shape, the gemstone features softly rounded corners with balanced proportions. The faceting is well executed, allowing light to circulate evenly through the stone and producing