3.70 Ct. Blue Sapphire from Ceylon (Sri Lanka)

This is a transparent 3.70 carat blue sapphire, cut in a refined emerald cut shape with exact dimensions of 9.18 x 7.80 x 5.05 mm. The stone displays a vivid color intensity and a clarity grade of eye clean when evaluated at eye level, which together produce a clean, saturated appearance without visible inclusions to the unaided eye. The gem has an excellent polish, and has been professionally heat treated to enhance its color uniformity, a common and accepted enhancement in gem trade that is fully disclosed. Origin is Ceylon Sri Lanka, a source long associated with bright, velvety blue sapphires, and the combination of provenance and transparent body color makes this sapphire immediately appealing to collectors and connoisseurs who value traceable origin alongside visual quality.

The emerald cut on this sapphire is executed with exceptional precision, its step facets and broad table emphasizing the depth of color and the stone s elegant architectural lines. While emerald cuts typically showcase clarity and color rather than scintillation, this cut and the superior polish work together to produce crisp internal reflections and a compelling play of light, allowing the vivid blue to register strongly under both natural and artificial light. For the educated buyer, the eye clean clarity and the measured dimensions yield predictable performance once set, making this gem an excellent choice for a solitaire ring or a refined pendant that positions it as the central focal point. The durable nature of corundum assures longevity, and the disclosed heat treatment aligns with market norms while preserving the sapphire s integrity and value. At The Natural Sapphire Company we emphasize full disclosure, meticulous cutting, and provenance, ensuring that this 3.70 carat Ceylon sapphire is presented with the technical information an informed buyer requires, and the visual qualities that make it a standout centerpiece in any fine jewelry collection.