Knowledge Centre > Gemmology > Gemstones > Sapphire

Star Sapphires

Article from Berganza


One of the most magical gemmological phenomena is known as ‘asterism’ or the star effect. This extremely rare attribute is caused by tiny rutile needle-like inclusions within the gemstone which intersect and align to create a shimmering star when viewed under a light source.  Stones with these inclusions are cut ‘en cabochon’ to best display this unusual optical quality. 

A hot topic in global news at the moment is that the world’s largest star sapphire has been recently discovered in Sri Lanka, weighing an astonishing 1404.49 carats and is believed to be worth in excess of $100 million USD. This gemstone is obviously too large to be mounted and worn as jewellery, however if you are looking for a star sapphire which can be worn and enjoyed, take a look at the following antique and vintage star sapphire rings currently available in Berganza’s stock.

 

full view Star sapphire, sapphire and diamond pin, circa 1890.
Star sapphire and diamond pin, circa 1890.
Ref: 20927
front view Oscar Heyman Brothers star sapphire ring, circa 1942.
Oscar Heyman Brothers star sapphire cocktail ring, American, circa 1942.
Ref: 20770
Vintage star sapphire diamond ring hatton garden berganza
Vintage star sapphire and diamond cocktail ring, circa 1950.
Ref: 18475
Mauve star sapphire diamond cluster ringberganza hatton garden
Mauve star sapphire and diamond cluster ring, circa 1920.
Ref: 18070
Star sapphire diamond coronet cluster ring berganza hatton garden
Art Deco star sapphire and diamond coronet cluster ring, American, circa 1930.
Ref: 24073
Star sapphire and diamond ring berganza hatton garden
Purple star sapphire and diamond ring by J. Milhening Inc., circa 1935.
Ref: 24134
Ceylon star sapphire and diamond ring berganza hatton garden
Ceylon star sapphire and diamond ring by J. Milhening. Inc, Chicago, American, circa 1950.
Ref: 24197
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Updated 18/07/2024 at 2:17PM

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