4.02 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This is one beautiful transparent 4.02 carat cushion shape blue sapphire with dimensions 9.29 x 7.86 x 5.77 mm. The gem displays a vivid color intensity, with a rich saturated blue that reads evenly across the table. Cut to a mixed brilliant pattern, the sapphire combines a faceting scheme designed to maximize return of light with balanced proportions that preserve weight while delivering strong brilliancy. Clarity is graded slightly included when evaluated at eye level, with minor internal features that do not detract from the overall transparency of the gem or its color. The polish is excellent, resulting in crisp facet junctions and attractive surface luster. Enhancement is reported as none, and the sapphire is from Ceylon Sri Lanka.

At 4.02 carats the weight of this sapphire positions it within a premium category for natural Ceylon stones, offering substantial presence without excessive depth that might mute color. The specific measurements produce a pleasing face up size and a depth that supports both durability and optical performance. In practical terms the carat weight contributes to a pronounced visual impact on a mounting, while the mixed brilliant style and excellent polish deliver lively scintillation under varied lighting. The combination of vivid color, eye level clarity that is slightly included, and a lack of enhancement underscores the natural quality and collectible appeal. Under direct and diffused light the stone displays a range of blue tones from deep cornflower to rich royal blue, with the vivid intensity consistently maintained. The transparent nature and the slightly included clarity allow light to penetrate and return with minimal obstruction, enhancing perceived size and overall brilliance. Such a combination of natural origin, lack of enhancement, and a substantial 4.02 carat weight is uncommon and of interest to collectors and designers who require a premium natural sapphire. The Natural Sapphire Company presents this gem as an example of careful selection and grading, where weight, color, cut, clarity, polish, and origin are all considered together to define premium quality. For a buyer focused on a natural untreated source with a notable carat weight, this 4.02 carat Ceylon cushion sapphire exemplifies the attributes that drive long term desirability and investment quality.