You may have similar questions as What Are the Ten Most Valuable Gems in the World and What Is the Rarest Gem in the World,or you may also seek several useful information about Which Gems Are Most Valuable. In addition,you may be interested in answers related to Market Value of Precious Gems,too. Read more as following:
The value of gemstones can change with time. One of the most valuable gemstones is the alexandrite, which can cost $100,000 per carat if the gem is larger with a vibrant color change.
The 10 most valuable gems in the world include the infamous Hope Diamond, the Star of India, Star of Africa, Tiffany Yellow Diamond and Queen Marie of Romania?s Sapphire. The Star of Asia, the Koh-I-Noor diamond, the Orlov, Mughal Emerald and the Spirit of de Grisogono Black Diamond complete the list…. More »
Painite is considered the rarest gem in the world according to the Guinness Book of World Records. Painite has a pink to red to brownish color…. More »
Diamonds are always in demand. A flawless white diamond of good clarity is worth thousands of dollars per carat. Despite their high price, though, diamonds are far from rare. What drives their price up is the balance of supply and demand; buyers priz… More »
i think it is the "hope diamond"…. More »
rubies are the most valuable, but the shape and certain sizes can change the costs or the different gems if you got 1 kilo of each gem then diamonds are worth the most… More »
The blue sapphire is the rarest stone…. More »