There are several sapphires that are well known due to their beauty, size, or historical significance. Here are a few examples:
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The Star of Asia: The Star of Asia is a blue star sapphire that is set in a necklace and is on display at the American Museum of Natural History in New York City. It is known for its size (it weighs over 300 carats) and its beautiful blue color, which is caused by the presence of the mineral rutile.
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Catherine the Great Sapphire: Catherine the Great Sapphire is a large, blue sapphire that is set in a necklace and is on display at the Kremlin Armoury Museum in Moscow, Russia. It is known for its size (it weighs over 500 carats) and its beautiful blue color, and it is believed to have once belonged to Catherine the Great, the Empress of Russia
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The Blue Moon Sapphire: The Blue Moon Sapphire is a 12.03-carat blue sapphire that was sold at auction in 2015 for $48.5 million, making it the most expensive sapphire in the world. It is known for its beautiful blue color and its historical significance, as it was once owned by King Louis XV of France.
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Lady Diana Engagement Sapphire Ring: Diana and Charles became engaged in February 1981. Her engagement ring consisted of 14 diamonds surrounding a 12-carat oval Blue Srilanka Sapphire set in 18-karat white gold. It was created by then-crown jeweller Garrard. The design was inspired by Queen Victoria's sapphire-and-diamond cluster brooch, a wedding present from Prince Albert in 1840, which Victoria donned that day as her something blue
