1.73 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This sapphire is a transparent, round shape gem weighing 1.73 carat, with precise measurements of 6.96, 6.97, 4.41 mm. The proportions and the mixed brilliant cut combine a traditional round outline with a pavilion structure designed to maximize scintillation, and the excellent polish contributes to crisp facet junctions and strong light return. The medium color intensity provides a pronounced blue presence without tipping into overly dark tones, making the hue easily legible at arm length and suitable for a variety of settings. The stone presents a clean visual field when viewed unaided, with the clarity graded as very very slightly included, evaluated at eye level, so the small internal characteristics do not disrupt the overall transparency or the pathways of light through the gem.

The combination of size, clarity, and cut is what makes this sapphire particularly appropriate as a statement piece. At nearly 7 mm across, the stone occupies a visible footprint on the hand or at the throat, offering an authoritative presence that reads as bold without being bulky. The mixed brilliant cut creates a disciplined pattern of facets that balances lively brilliance with focused flashes of color, and because the stone is effectively eye clean, the facet architecture is uninterrupted by inclusions that would otherwise scatter light and diminish contrast. In practical terms this means the gem will perform consistently in daylight and in artificial light, delivering a stable, attractive face up appearance, and providing the kind of single stone impact that is sought after for solitaire rings, prominent pendant settings, and center stones in bespoke designs intended to draw attention.

This sapphire originates from Ceylon, Sri Lanka, a source long associated with richly colored and finely crystallized blue sapphires. The gem has been heat treated, a standard and stable enhancement commonly used to improve color saturation and clarity while maintaining the natural crystal structure. The treatment is permanent under normal wear conditions, and it is a widely accepted practice within the trade to present heat treated sapphires as durable, everyday wearable gems. Hardness and toughness inherent to corundum give the stone practical resilience for daily jewelry use, and the combination of excellent polish and the mixed brilliant facet arrangement enhances both durability in a setting and the visual impact when set in styles that expose the pavilion to light. For clients and designers working with this piece, The Natural Sapphire Company can offer guidance on classic prong settings to maximize light entry, bezel options to emphasize form while protecting the girdle, and halo or three stone arrangements to increase perceived size and presence without obscuring the sapphire s defining optical qualities.