New types of gemstones are still discovered around the world. These are old terms and not necessarily true these days. Among all types of gemstones diamonds rubies sapphires and emeralds are regarded as four most precious stones. While mid range gemstones such as aquamarines and tourmalines have been popular too. The traditional list of gemstones that are considered precious stones are.
Unfamiliar gemstones can be popular suddenly. Today mineralogists and gemologists describe stones in technical terms including their chemical composition mohs hardness and crystal structure. All other gemstones are considered as being semi precious stones. All other quality stones are called semiprecious even though they may not be any less valuable or beautiful. The types of gemstones are increasing every year.
To view the treatments associated with each of these stones visit our technical information on gemstones page. To view the treatments associated with each of these stones visit our technical information on gemstones page. Unfamiliar gemstones can be popular suddenly. New types of gemstones are still discovered around the world.
