Figure 1. The Burmese ruby beads in this multi-strand necklace were filled with lead glass. Photo by C.D. Mengason. Rubies filled with a high-lead-content glass as a clarity enhancement were first ...

Below, you can check out some of the best places to find rubies. Stone Graves and Viking Graveyards are locations with rocks that are in a peculiar orientation, such as a circle or longship shape.

Unless you have a lab at your disposal to determine the refractive index and specific gravity of a given stone, a red spinel can look a lot like a ruby. In general, rubies are somewhat scarcer ...