- Jadeite
Jadeite is a precious stone type that has pyroxene mineral content, which usually has an apple green color, emerald green, green leaf, or a bluish green. But it was also not found also found a type that has a white or greenish white color that is accompanied by green spots. The stronger the visible green color, the more expensive the price of stone which is also known as this jade. Most of the Chinese people prefer jadeite or jade that is white with green spots. Jadeite stones that have a deep blue-green color also had several times found around Guatemala. But since the local community is still strongly holding the historical value of the so-called stone is considered to have links with the Mesoamerika Olmec community in the past, then the exploration is not much done for the search of this type of stone. The price of this type of stone will certainly be higher if the mining in Guatemala is activated, not surprisingly, the best category of this type of stone can reach (or even exceed) the price of $ 3 million per carat
2.Serendibite
Serendibite precious stones, a type of precious stones that contain boron, which is also a rare type of precious stones on the market. Until now, only two areas are known to produce this type of stone. One area is in Ratanapura in Sri Lanka, while the other is in Mogok, northern Burma. Most types of serendibite stones are found to have a turquoise blue, grayish blue and pale yellow with white lines inside. As for the price, this type of stone can reach the price range of $ 1.8 - 2 million per carat
3.Blue Gamete
Indeed many types of gametes that circulate in the market. It usually has various colors like black, brown, green, orange, pink, purple, red and yellow. There are even some of them that do not have a clear color. But that's all nobody can match the price of the blue gamete. This type of precious stones were first discovered in Madagascar in the 1990s, although the same mining exploration has also been done in Russia, the United States and Turkey. Although if viewed at a glance this type of stone has a slightly turquoise blue color, but the content of vanadium in this rock will make it emit purple hue when viewed through incandescent lamps. That is why no wonder if the price of this type of stone could reach $ 1.5 million per carat.
4 Grandidierite
Alfred Grandidier is a natural historian who is well known in the world of archeology, also famous for his discoveries in Madagascar from skeletons and remains of elephant birds weighing up to about half a ton and extinct for thousands of years. He is also famous in the world of gemology for the discovery of rare stones in Sri Lanka that emit light blue, green and white. Initially, they thought it was a kind of serendibite, but after closer examination, gemologists or precious stone experts concluded that it was an entirely new kind of stone. That is why this type of stone was later named Grandidierite, taking the name of Alfred Grandidier as the inventor of this precious stones. The price of this Grandidierite gemstone is estimated to reach about $ 100,000 per carat