1.54 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This 1.54 carat round blue sapphire is a textbook example of precision cutting and material quality, offered by The Natural Sapphire Company. The stone measures 7.20 by 7.15 by 3.93 millimeters, yielding a depth ratio of approximately 54.8 percent, a range that favors balanced light performance and stable face up color. The cutter employed a mixed brilliant faceting scheme, combining a brilliant facet arrangement on the crown with a modified pavilion that optimizes scintillation while maintaining strong color saturation. The cut exhibits excellent symmetry and an excellent polish, allowing crisp facet junctions and minimal surface abrasion. As a member of the corundum family, this sapphire has a refractive index in the range of 1.762 to 1.770, a birefringence around 0.008 to 0.010, a specific gravity near 3.95 to 4.03, and a Mohs hardness of 9, attributes that make it highly suitable for daily wear in a ring or pendant setting.

Optically the gem reads as vivid in color intensity, with a rich, saturated blue that remains evenly distributed across the table and crown under multiple lighting conditions. The mixed brilliant cut is particularly well matched to this material because it reduces windowing in the center, while the pavilion configuration enhances return of the deep blue wavelengths that define vivid Ceylon sapphires. Crown facets are proportioned to provide a lively pattern of pinfire and larger flashes, while the pavilion facets create contrast that sharpens facet breakup without reducing overall brilliance. The table is proportioned to preserve both depth of color and a strong table image, and the girdle is finished to an even thickness to facilitate consistent setting without compromising durability. This proportion set makes the gem versatile for classic solitaire mounting, halo treatments, or bespoke designs where color and light performance are primary considerations.

Clarity is graded as eye clean by standard loupe and unaided visual inspection at normal viewing distance, indicating that there are no inclusions that interfere with the unaided visual appearance. Under magnification the stone may display typical corundum features such as fine silky needle rutile, pinpoint crystals, or subtle growth zoning, but none detract from face up appeal. The piece has been heat treated, a stable and widely accepted enhancement in the trade, applied to improve color saturation and reduce the visibility of certain inclusions. Heat treatment of sapphires from Ceylon is a conventional practice to unlock the best visual potential of the rough, and when properly disclosed it does not compromise the gemological integrity or long term stability of the color. The origin is Sri Lanka, historically referred to as Ceylon, a provenance known for producing sapphires with luminous, clean blues that combine brightness with saturated hue. At The Natural Sapphire Company we document treatment and origin with our internal grading, and we recommend gemological certification for clients who require formal lab verification.

Beyond physical attributes many buyers value the traditional metaphysical associations of blue sapphire, attributes that have been ascribed to this material across cultures and centuries. Blue sapphire is classically associated with wisdom, clarity of thought, and a disciplined mind, qualities that make it a preferred stone for those seeking focus and measured decision making. The vivid, deep blue of this Ceylon sapphire is traditionally linked to a calming influence on emotional turbulence, a strengthening of communication and truth, and an alignment of the throat and third eye energy centers in the context of chakra work. Practitioners and collectors often report that a clean, well saturated stone such as this can enhance mental clarity, encourage perseverance, and function as a talisman for protection and integrity. These metaphysical descriptions are rooted in cultural and historical beliefs rather than clinical evidence, and should be considered complementary to the gemological qualities that make this sapphire desirable. For clients interested in bespoke mounting, comparative grading, or viewing this stone in person, The Natural Sapphire Company is available for consultation and can provide additional imaging, certificate options, and setting recommendations to showcase both the physical and the symbolic virtues of this exceptional Ceylon blue sapphire.