1.30 Ct. Yellowish Green Sapphire from Thailand

This exceptional transparent 1.30 carat cushion shape yellowish green sapphire measures 7.18 x 6.15 x 3.44 mm, and was expertly faceted in a mixed brilliant cut to balance color saturation and scintillation. The mixed brilliant configuration employs brilliant style facets on the crown to maximize return of light and a precision pavilion arrangement to control leakage and maintain strong face up intensity. With a measured depth of approximately 3.44 mm on an average width of 6.665 mm, the stone exhibits a well proportioned depth ratio of about 51.6 percent, a dimension that preserves both lively brilliance and even color distribution when set. The gem is graded very slightly included at eye level, indicating minute inclusions that do not materially interrupt transparency or brilliance, and an excellent polish confirms clean facet junctions and minimal surface abrasion. The intense color intensity of the stone produces a vivid yellowish green that responds uniformly to light, and subtle directional color variation enhances its character without compromising face up saturation. Heat treatment has been applied to stabilize and optimize the hue and clarity, a standard, permanent enhancement for sapphires, and the stone is sourced from Thailand, a region known for producing green and yellowish green corundum with strong, attractive tones. The Natural Sapphire Company presents this sapphire as an example of careful lapidary planning, where cutting orientation and facet design were chosen to emphasize the stone core color while preserving weight and yield.

From a durability standpoint the material is corundum, with a Mohs hardness of 9, second only to diamond, which confers excellent resistance to scratching in everyday use. Corundum also exhibits strong toughness and lacks true cleavage, reducing the risk of splitting under normal wear, and the cushion outline with rounded corners lends itself to protective settings. For daily wear in rings and other frequently worn jewelry, we recommend secure bezel or four to six prong settings that protect girdle edges while allowing the mixed brilliant crown to interact with light. The heat treatment is stable under normal wearing conditions and routine professional cleaning methods, however care should be taken to avoid extreme thermal shock and prolonged exposure to harsh chemicals. Regular inspection of the mounting and a professional cleaning and check every six to twelve months will ensure longevity and preserve the excellent polish and energetic color of this yellowish green sapphire from The Natural Sapphire Company.