Known as the most expensive gemstones- Ruby. They are the red form of the mineral corundum and one of the hardest stone with a Mohs hardness value of 9. Best rubies originated from Burma, Madagascar, Sri Lanka, Thailand, Kenya, and Vietnam.
Choosing a Ruby Color
The most essential aspect in judging the quality of a ruby is its color. It is must to consider the color characteristics when...
English
French
Spanish
Portuguese
Deutsch
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek