1.35 Ct. Blue Sapphire from Ceylon (Sri Lanka)

One beautiful transparent 1.35 carat round blue sapphire is presented by The Natural Sapphire Company, with precise dimensions of 7.00 x 7.03 x 3.40 mm. The gem is fashioned in a mixed brilliant cut, featuring an exacting pavilion combined with a faceted crown, producing balanced proportions and controlled light performance. Clarity is graded very very slightly included, evaluated at eye level, which preserves an open appearance to the table while confirming natural internal characteristics. Color reads as medium intensity blue, showing a clear Ceylon tone that remains lively across the full surface of the stone. The sapphire has an excellent polish, indicating well finished facet junctions and smooth facet planes, and the stone has been heat treated to enhance color uniformity and stability. Origin is Ceylon Sri Lanka, a source noted for producing sapphires with a vivid yet subtle blue expression and consistent crystalline quality.

The mixed brilliant cut on this round sapphire relies on precise geometric faceting to allow maximum light play, with each facet plane calculated to return and refract light back through the crown. The arrangement of crown and pavilion facets creates a dynamic interplay of brilliance and scintillation, enabling both strong white light return and dispersion of blue tones across the table and facets. The combination of medium color intensity and very very slightly included clarity permits excellent contrast between the lighter flashes of brilliance and the deeper blue body color, resulting in visual depth without appearing overly dark. Measurements near seven millimeters in diameter make this stone well suited to traditional ring proportions, and the robust polish supports secure setting options that maintain surface integrity during wear. Technical attributes such as the rounded outline, consistent girdle, and balanced depth contribute to predictable optical performance when set, and the stone responds well to open settings that allow light to enter and exit freely. The Natural Sapphire Company provides this sapphire as a documented example of Ceylon origin material, presented with clear specifications and treatment disclosure for professional consideration, design planning, or client evaluation.