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20 Ct Natural Unheated Blue Sapphire — Sri Lanka

At 20 carats, this sapphire is cut as a generous cushion and shows a rich, saturated blue that holds its depth across the whole stone. Held in the hand, a sapphire of this weight feels less like a typical jewelry stone and more like a collector's specimen, with broad facets that return deep flashes of blue as it moves under the light.

This stone is unheated, meaning its color is exactly as nature formed it. That matters at this size: most blue sapphire on the market has been heat-treated to improve color or clarity, and natural, untreated stones of 20 carats are genuinely scarce. Sourced from Sri Lanka, a region long known for producing large, fine sapphires, it combines scale, natural origin, and provenance in one stone.

Sapphire ranks 9 on the Mohs scale, second only to diamond, so a stone like this stays durable for generations, whether set as a statement ring or pendant or kept in a collection.

• Type: Natural Sapphire

• Treatment: Unheated

• Weight: 20 Cts.

• Color: Blue

• Shape/Cut: Cushion

• Origin: Sri Lanka


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At 20 carats, this sapphire is cut as a generous cushion and shows a rich, saturated blue that holds its depth across the whole stone. Held in the hand, a sapphire of this weight feels less like a typical jewelry stone and more like a collector's specimen, with broad facets that return deep flashes of blue as it moves under the light.

This stone is unheated, meaning its color is exactly as nature formed it. That matters at this size: most blue sapphire on the market has been heat-treated to improve color or clarity, and natural, untreated stones of 20 carats are genuinely scarce. Sourced from Sri Lanka, a region long known for producing large, fine sapphires, it combines scale, natural origin, and provenance in one stone.

Sapphire ranks 9 on the Mohs scale, second only to diamond, so a stone like this stays durable for generations, whether set as a statement ring or pendant or kept in a collection.

• Type: Natural Sapphire

• Treatment: Unheated

• Weight: 20 Cts.

• Color: Blue

• Shape/Cut: Cushion

• Origin: Sri Lanka