1.45 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This exceptionally transparent 1.45 carat round blue sapphire measures 6.28 by 6.34 by 4.44 millimeters, producing an average diameter of 6.31 millimeters and a depth of approximately 70.3 percent, and is offered by The Natural Sapphire Company. The stone is faceted in a mixed brilliant cutting style that has been selected to balance lively light return with deep, even color saturation. At face up inspection the gem shows vivid color intensity and an eye clean clarity grade as evaluated at eye level, meaning that there are no inclusions visible to the unaided eye that would interrupt the viewer experience or undermine the stone structurally. The finish is described as excellent polish, which enhances the stone’s ability to reflect and refract light through crisp facet junctions and a smooth surface. This sapphire has been heat treated, a widely accepted enhancement in the trade that stabilizes and intensifies natural color, and the material originates from Ceylon Sri Lanka, a source with a long and distinguished history for producing desirable blue sapphire hues.

The mixed brilliant cut used for this round sapphire contributes both to its visual performance and to how it is best set in jewellery. Mixed cuts typically combine a brilliant style crown that disperses light into scintillation with a pavilion that may include step elements, and this combination preserves weight while opening color in the face up view. Given the stone’s depth near 70 percent cutters have intentionally retained sufficient pavilion volume to maximize blue saturation while still maintaining brisk return of white light from the crown facets. Excellent polish ensures minimal surface diffusion of light, so the gem displays lively flashes and a clean window free of surface grain. Clarity described as eye clean at standard viewing distance places this sapphire in a category prized by connoisseurs because microscopic inclusions that are often present in natural corundum do not detract from its appearance to an unaided observer, which elevates the stone’s presence in finely crafted settings and contributes positively to long term desirability.

Color characteristics and origin are central to the value proposition for an educated buyer evaluating this sapphire. Ceylon Sri Lanka has produced blue sapphires for centuries and is renowned for stones that exhibit a bright to vivid blue with a lively, often slightly lighter tone than the deepest stones from some other regions, making them particularly attractive for settings where the stone is intended to look vibrant and luminous. The description vivid color intensity indicates strong saturation and a shade that reads clearly blue across different lighting conditions, and paired with the gem’s transparency and excellent polish the face up appearance is both richly colored and brilliant. Heat treatment carried out by experienced lapidaries is a standard, stable, and permanent enhancement that refines natural color zoning without introducing surface residues or fillers, and the fact that the stone is heat treated is disclosed transparently in line with good trade practice. For collectors and fine jewellery clients the combination of Ceylon origin, eye clean clarity, vivid saturation, and a precise mixed brilliant cut is a configuration that is relatively uncommon at this size and therefore carries both aesthetic and market appeal.

Beyond technical attributes this sapphire connects to a long heritage of traditional uses that enhance its cultural resonance for buyers who appreciate provenance as part of value. Sapphires have been linked historically with ceremonial and devotional jewellery in South Asia, used in crowns and regalia in royal contexts, and incorporated into sacred and civic ornamentation as symbols of wisdom, fidelity, and elevated status. In Sri Lanka itself gem gravels were worked for generations and the island’s sapphires have been traded and revered across the Indian Ocean world and beyond. For modern wearers a sapphire of this caliber can carry those same associations when set into an engagement ring, a signet style piece, or a pendant designed for daily wear, because the material offers both the durability required for frequent use and the visual language of tradition. The Natural Sapphire Company sources stones with a commitment to documented origin and full disclosure of enhancements, and we offer detailed reports and consultation to help match this gemstone to a setting that respects its heritage while fulfilling contemporary aesthetic and technical requirements. If you would like a formal report, bespoke design guidance, or assistance with matching this sapphire to complementary stones or metals, our gem specialists are available to advise on certification options and mounting choices that preserve the stone’s beauty and provenance.