A 2.723ct IGL‑certified Thai (Siam) sapphire in an oval mixed cut, showing a deep greenish‑blue tone with medium saturation and a distinctive half‑green, half‑blue bicolor effect. The gem is very clear and nearly loupe clean, with only minimal internal crystals visible under magnification. Heated, with dimensions 6.88 × 9.03 × 4.60 mm, it displays a refined brilliance and a rare color character unique to Siam material.