Lowest price:$124.99Description: 6x4mm oval unheated multi-color sapphire set of 6. colors will vary. sapphire is a gemstone in the corundum family. known for its beautiful cornflower blue color sapphire also comes in a wide range of colors. on mohs' scale of hardness ruby is 9. it has a strong luster like diamonds and sources include australia burma (myanmar) sri lanka thailand montana brazil cambodia china kenya madagascar malawi nigeria pakistan rwanda tanzania vietnam and zimbabwe.