According to the gemological point of view, the term sapphire refers specifically to blue corundum gemstones. Other blue gemstones that are not corundum (A1203) components, no matter how cute they are, should not be called "safir". Itu bisa disebut "blue gem" atau "batu XX biru". Misalnya, berlian biru bisa disebut "berlian biru". [...]
