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6.06 Ct Unheated Cornflower Blue Sapphire — Sri Lanka

At 6.06 carats, this sapphire is cut as a generous oval (12.26 x 8.98 x 5.94mm) and displays the fabled cornflower blue that collectors chase — a saturated, slightly violet-toned blue achieved here without any heat treatment. Held to the light, the color stays even and velvety across the crown, with the kind of soft glow that only comes from natural, untreated corundum.

Unheated sapphires of this size and color are genuinely scarce: most commercial blue sapphire on the market has been heat-treated to improve color and clarity, so a natural 6+ carat stone with this kind of cornflower saturation represents a small fraction of what reaches the market. Mined from Sri Lanka's storied gem gravels — the same source that has produced some of history's most celebrated sapphires — this stone carries both rarity and provenance.

Sapphire ranks 9 on the Mohs scale, second only to diamond, making it one of the most durable gems available and an excellent choice for daily-wear rings as well as pendants and earrings.

• Type: Natural Sapphire

• Treatment: Unheated / No Heat

• Weight: 6.06 Cts.

• Color: Cornflower Blue

• Shape/Cut: Oval, Mixed Cut

• Measurements: 12.26 x 8.98 x 5.94mm

• Origin: Sri Lanka


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At 6.06 carats, this sapphire is cut as a generous oval (12.26 x 8.98 x 5.94mm) and displays the fabled cornflower blue that collectors chase — a saturated, slightly violet-toned blue achieved here without any heat treatment. Held to the light, the color stays even and velvety across the crown, with the kind of soft glow that only comes from natural, untreated corundum.

Unheated sapphires of this size and color are genuinely scarce: most commercial blue sapphire on the market has been heat-treated to improve color and clarity, so a natural 6+ carat stone with this kind of cornflower saturation represents a small fraction of what reaches the market. Mined from Sri Lanka's storied gem gravels — the same source that has produced some of history's most celebrated sapphires — this stone carries both rarity and provenance.

Sapphire ranks 9 on the Mohs scale, second only to diamond, making it one of the most durable gems available and an excellent choice for daily-wear rings as well as pendants and earrings.

• Type: Natural Sapphire

• Treatment: Unheated / No Heat

• Weight: 6.06 Cts.

• Color: Cornflower Blue

• Shape/Cut: Oval, Mixed Cut

• Measurements: 12.26 x 8.98 x 5.94mm

• Origin: Sri Lanka