0.73 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This exquisite transparent cushion shape blue sapphire weighs 0.73 carats, and measures 6.05 x 4.38 x 2.96 millimeters, a size that balances presence with graceful understatement. Cut in a mixed brilliant style, this gem offers scintillation and depth in equal measure, turning each movement into a play of blue fire and reflection. The color intensity registers as intense, a deep Ceylon blue that is rich without tipping into darkness, a tone prized by collectors and designers alike. Clarity has been graded as very slightly included when viewed at eye level, a mark that preserves the gem so that its natural character remains visible while keeping the surface of the stone clean to the unaided gaze. The polish is excellent, allowing the facets to deliver a bright, lively surface that complements the cushion outline. This sapphire has been professionally heat treated, a widely accepted enhancement that refines tone and clarity without compromising the gemological integrity of the material, and its origin is Ceylon Sri Lanka, a source long revered for producing sapphires with exceptional hue and depth. The Natural Sapphire Company presents this stone as a singular opportunity for clients who seek provenance, beauty, and a connection to the storied mines of Sri Lanka.

Owning this sapphire is to join a select circle, because stones of this character and proportion are rare in the market. The combination of a discernible carat weight at 0.73 carats, an ideal proportioned cushion outline, intense color, and an excellent polish means that this gem is ready to be set into a bespoke piece that will be cherished for generations. At The Natural Sapphire Company we curate sapphires with an eye for uniqueness, and this example stands out for its pure Ceylon blue and its clarity profile that gives life to the stone without oversanitizing its natural origin. Whether you envision a solitary engagement ring where the sapphire becomes the singular focus, a halo setting to amplify its presence, or a custom pendant for an heirloom collection, this gem adapts elegantly to high end jewellery design. The dimensions allow for comfortable wear and versatile mounting options, and the cushion shape brings a classical silhouette with modern brilliance. Because we limit availability to stones that meet our strict criteria, this sapphire will appeal to collectors and clients who appreciate rarity, craftsmanship, and the assurance that comes from working with a trusted source.

Durability is a key consideration for jewellery that is intended to be worn daily, and on the Mohs hardness scale this sapphire rates a 9, which places it among the hardest and most scratch resistant of commonly used gems. For context, diamond is a 10 on the Mohs scale and stands as the benchmark for hardness, while topaz rates at 8 and quartz at 7, so this sapphire offers substantially greater resistance to abrasion than many popular gems. That means the stone will retain its polished facets and vibrant table over years of wear, and it is more than suitable for rings and bracelets that experience frequent handling. The heat treatment performed on this gem is stable under normal wear conditions, however we recommend sensible care to preserve brilliance, such as removing jewellery for heavy manual tasks, avoiding prolonged exposure to harsh chemicals, and having settings checked periodically by a professional jeweller. At The Natural Sapphire Company we also offer guidance on optimal mounting styles that protect the pavilion and girdle while enhancing the display of color and light. If you would like a private viewing, bespoke setting proposals, or further technical information, our team stands ready to assist with personalized service so that this rare Ceylon sapphire can be transformed into a signature piece for an elite collection.