Star sapphire pendants display asterism, a rare optical phenomenon where light creates a six-rayed star across the stone surface. This effect occurs when needle-like rutile inclusions align within the sapphire crystal structure. Our collection features natural star sapphires set in .925 sterling silver, with prices ranging from $16 to $11,402 across more than 28,000 pieces. Each stone carries a Mohs hardness of 9, second only to diamond, making star sapphire a durable choice for regular wear.
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Asterism occurs when rutile needle inclusions align in three directions within the sapphire crystal. Light reflecting off these needles creates a six-rayed star pattern visible on the stone surface.
Star sapphires rate 9 on the Mohs hardness scale, making them resistant to scratches and suitable for regular wear in pendant settings.
Major deposits exist in Sri Lanka, Myanmar, Thailand, and parts of Africa. Sri Lankan star sapphires often display lighter blue tones with sharp star definition.