In what ways do regional origins (such as Burmese rubies, Colombian emeralds, or Ceylon sapphires) affect the value and desirability of certain gemstones?

In what ways do regional origins (such as Burmese rubies, Colombian emeralds, or Ceylon sapphires) affect the value and desirability of certain gemstones?
Admin 11 hours, 30 minutes ago in Gemstones
0 Answer(s)