10.04 Ct. Blue Sapphire from Madagascar

This GIA certified blue sapphire presents a rare combination of scale, clarity, and cut, weighing 10.04 carats and measuring 13.42 by 10.07 by 7.06 millimeters, faceted in a radiant shape to balance fire and color saturation. The radiant cut employed here uses a hybrid faceting schema that combines trimmed corners with a series of step influenced pavilion facets and modified brilliant crown facets, creating controlled return of light while maintaining strong color concentration. The material is eye clean when evaluated at normal viewing distance, which allows the vivid color intensity to dominate the gem face without distraction, and the excellent polish enhances facet definition and surface luster. Origin reported as Madagascar, and heat treatment has been applied, a standard and fully disclosed enhancement that stabilizes tone and deepens blue saturation. The sapphire benefits from corundum s refractive index near 1.76, which in combination with the cutter s attention to pavilion angles and crown geometry yields lively internal reflections, excellent contrast, and a crisp outline that reads larger than many stones of equivalent carat weight.

Owning this gemstone is an investment in both aesthetic presence and artisanal technique, and The Natural Sapphire Company presents it with full GIA documentation to support provenance and marketability. Stones above 10 carats with eye clean clarity and vivid color intensity are scarce in the market, and the radiant cut here has been executed to preserve weight while optimizing optical performance, making this example desirable for collectors and high end bespoke settings alike. From a technical standpoint, the balance of depth and table proportions, the precision of its facet junctions, and the superior polish reduce light leakage and maximize apparent color saturation, factors that materially affect both visual impact and secondary market value. Heat treatment is the most accepted enhancement in trade and when paired with laboratory certification supports transparent valuation. For clients seeking a center stone that combines robust physical durability, due to sapphire s hardness, with museum quality color and lapidary skill, this Madagascar sapphire is a logical long term acquisition, and The Natural Sapphire Company can advise on mounting options, independent appraisal, and secure documentation to ensure the piece performs as both a wearable jewel and a durable store of value.