This 1.42 carat oval-cut sapphire is a product of Chanthaburi, Thailand. The color is a bright bluish-green with striking, well-defined color banding running horizontally across the stone – bold, distinct stripes rather than a subtle gradient, giving the face-up view real visual drama. In hand it's genuinely lively, with good brilliance returning across the oval despite the pronounced color zoning. The color owes its full expression to heat treatment, confirmed by a Chanthaburi Gemological Laboratory (GLC) report.
