Star Sapphire Rings in Sterling Silver  

Natural Star Sapphire Rings With Six-Ray Asterism

Star sapphires form when titanium dioxide needles grow within the corundum crystal during its development deep in metamorphic rock. These microscopic inclusions, called silk, align in three directions at 60-degree angles. When a lapidary cuts the stone en cabochon with proper orientation, overhead light creates the signature floating star that moves as the ring shifts on your hand. The intensity of asterism varies by specimen. Some display sharp, well-defined rays that extend to the edge of the cabochon. Others show softer stars with a milky quality. Blue remains the most recognized color, though star sapphires also occur in gray, black, pink, and golden yellow. Black star sapphires from Thailand often show the most prominent rays due to higher concentrations of hematite and ilmenite inclusions. Each ring in this collection uses .925 sterling silver for the band and setting. We have offered natural gemstone jewelry since 2005, and our star sapphire selection changes as new stones become available. Browse the full range to find a ring that fits your size and budget.