Product Code SKU7010. 9ct Yellow Gold 4mm x 4mm Heart Shape Australian Sapphire double drop earrings with Diamond. Part of Corundum family Sapphires come in a variety of colours Australian Sapphires range in colour from dark royal blue to a strong rich blue we also have Parti Sapphires which bring us multi hued stones of green yellow and blue.Ceylon Sapphires they range from light blue to a vivid blue think cornflower blue.Then there are Pink Sapphires which range from deep pink to a medium purple. There are also Yellow and Orange sapphires.Sapphire is the Birthstone for September and 45th anniversary stone. Beautifully presented in a gift box.