Canary Yellow SAPPHIRE, 0.54 Carats, 5.5×3.5mm Oval, Clean. #198

Corundum is the mineral species that includes both sapphire and ruby as varieties. Red corundum is known as ruby and all other colored corundum (including colorless, or white sapphire as it is known in the trade) is sapphire, although blue is the most well-known.