3.47 Ct. Blue Sapphire from Madagascar

Across centuries and civilizations sapphires have been treasured as emblems of fidelity and guardianship, a legacy that endures with every finely cut stone we present at The Natural Sapphire Company. This particular example is a beautiful transparent blue sapphire weighing 3.47 carat, shaped into a classic oval that measures 9.16 by 7.90 by 5.63 mm. Originating from Madagascar, a source celebrated for producing sapphires with vivid and alluring tones, this gem carries the history of the earth in its crystalline structure and the hand of the cutter in its elegant silhouette. Heat treated to enhance its innate beauty, it displays intense color intensity that is at once deep and luminous, a shade that will remain timeless as fashions shift and generations pass. The slight inclusions visible at eye level are a reminder of the stone as a natural creation, lending character rather than detracting from its overall presence, and the excellent polish ensures that every facet sings when it meets the light.

The unmatched sparkle of this sapphire stems from the very nature of corundum and the thoughtful geometry applied in its finishing, corundum has a high refractive index which bends and concentrates light within the gem, and when combined with the precision of a mixed brilliant cut the result is extraordinary brilliance and scintillation. The mixed brilliant cut blends the reflective depth of step facets with the lively flash of brilliant facets, allowing the crown and pavilion facets to work in harmony and to return maximum light to the viewer. The crystal lattice of aluminum oxide with its trace elements of iron and titanium is responsible for the blue hue, and the interaction between color saturation and facet pattern creates a play of tones that shifts from royal blue to velvety indigo as the stone moves. The slightly included clarity grade evaluated at eye level does not impede transparency, instead it offers internal features that scatter light in subtle ways, increasing the sense of depth, and the excellent polish on every facet eliminates surface diffusion so that light is reflected and refracted cleanly, producing flashes of brightness and a rich internal glow that many other gems cannot match.

A sapphire of this quality invites a design that respects its heritage while ensuring it becomes a treasured heirloom, sapphire rates nine on the Mohs scale which gives it exceptional durability for daily wear in engagement rings, signet rings, or a pendant set to sit close to the heart. Consider a bezel setting to protect the girdle while showcasing the oval silhouette, or a classic four prong mount to allow light to enter freely and to emphasize the intense blue performance that this gem delivers. At The Natural Sapphire Company we pride ourselves on pairing stones like this Madagascar sapphire with designs that honor their timeless nature and invite future generations to carry the story forward. We disclose all treatments, so you can be confident that heat treatment has been applied to enhance the inherent color, and we are happy to provide additional images, measurements, and personalized design consultations so that the finished piece reflects your personal taste and the legacy you wish to create.