1. Jeremejevite
Jeremejevite is a stunningly beautiful pure blue crystal, ranked among the rarest gems in the world. It is named after Russian mineralogist Pavel Jeremejev who discovered it in 1883, in Namibia. In nature, this mineral can also be colorless or pale yellow, and is shaped like elongated prisms. It has also been mistaken for aquamarine in the past. In early 2005, a 2.93-carat Jeremejevite was auctioned online for $2,000 per carat (equivalent to 42 million VND per carat). This exquisite gemstone was first found in 1883, on Mount Soktui, Siberia. It is a rare mineral, consisting of aluminum borate with hydroxide and fluoride ions, forming the chemical formula AlB₅O₁₅ (F, OH).
This remarkable gemstone is priced at approximately $2,000 per carat. It serves as evidence that minerals can be as beautiful and valuable as gemstones! In terms of characteristics, jeremejevite has a hardness ranging from 6.5 to 7.5 and has color limits from colorless to yellow and blue. Recently, some types of jeremejevite have also been found faceted in Namibia. Like tourmaline, jeremejevite is piezoelectric.
2. Red Beryl Emerald
Red Beryl, a rare gem, is mainly mined in the Thomas Range and Wah Wah Mountains in Utah (USA), and some places in Mexico. In these areas, Red Beryl is found in Rhyolite minerals, where the gems crystallize under extremely low pressure and high temperatures along the cracks and cavities containing volcanic magma. It's incredibly rare to find naturally faceted specimens of this gemstone in the world. This gem sells for $10,000 USD per carat. Among gemstones worldwide, Red Beryl can be considered the rarest.
Scientists have estimated the odds of finding just one Red Beryl to be 1 in 150,000 diamonds. Red Beryl was first discovered in 1904. It's a rare variety of Beryl with a red hue. In these locations, Red Beryl is found in Rhyolite minerals. This is also why Red Beryl Emeralds are highly valuable and rare. It's believed that the presence of manganese in the crystal helps cell regeneration and can help balance fatty acids by supporting the formation of new blood cells. Additionally, Red Beryl has the ability to emit a powerful energy source, enhancing creativity and generating new ideas for its wearers. Moreover, they bring confidence, courage, and determination.
3. Black Opal
The cat's eye gemstone is classified as rare due to the Opal encompassing all the colors of other gemstones combined. Black Opal
What makes this gemstone appealing is that each stone possesses a unique beauty and encompasses all the colors of other gemstones combined. Although the minerals that make up this stone are found all over the world, finding a high-quality Opal is as difficult as finding a needle in a haystack. Currently, 97% of the world's cat's eye gemstones come from mines in Australia, with the remaining 3% from Mexico. The internal structure of the cat's eye gemstone has the ability to scatter light, creating a beautiful spectrum of colors.
4. Grandidierite
This rare bluish-green mineral is primarily found on the Madagascar peninsula and is named after the French naturalist and explorer Alfred Granidier – one of the group who excavated the nearly half-ton elephant bird bones in Ambolisatra, Madagascar. The first and only faceted stone found so far is in Sri Lanka. This rare gemstone is sold for $50,000 USD/0.5 carats. It's a highly rare borosilicate aluminium Mg – Fe.
Since the first discovery of Grandidierite, samples have only been found in a few locations worldwide. These include Malawi, Namibia, and Sri Lanka. However, high-quality specimens mostly come from Madagascar. This stone is a bluish-green mineral with a bluish hue that intensifies depending on the iron content. However, they can also shift from bluish to greenish and even to white. To date, with expanded mining, scientists have observed that Grandidierite also appears in Sri Lanka and Norway. However, the reserves in these mines are quite limited.
5. Musgravite
Musgravite is one of the newest and rarest gemstones in the world. It is a silicate mineral composed of beryllium (Be), magnesium (Mg), and aluminum (Al). This crystal is named after the Musgrave Range in central Australia - where it was first discovered. Later, Musgravite was also found in Greenland (Denmark) and Madagascar. In 1993, two rare faceted Musgravite gems were first discovered in Sri Lanka. This precious gemstone sells for $35,000 per carat.
Musgravite gemstones are so rare that only 8 tiny pieces existed in 2005, appearing in very limited quantities in Greenland, Madagascar, and the Antarctic. The first truly large and pure specimens suitable for faceting were not reported until 1993, and by 2005, only eight specimens were believed to have been found.
6. Red Diamond
Red Diamonds are currently the rarest mineral discovered in the world among natural gemstones, with very few people having the opportunity to see them directly. This rare gemstone is not simply deep red or bright red but bears a purplish-red hue. Regardless of size and weight, Red Diamonds are among the most expensive diamonds in the world. To purchase this type of gemstone, you would have to pay $2 million - $2.5 million USD per carat. Red Diamonds are the rarest type among colored diamonds. The largest Red Diamond in the world weighs only 5.11 carats (about 1 gram), and there are only about 20-30 Red Diamonds certified to still exist worldwide.
Red Diamonds are not only the rarest gemstone but also the most valuable of all gemstones - beautiful Red Diamonds with the best quality reach prices after auction of over $1 million USD per carat. In fact, the Moussaieff Diamond, known as the largest Red Diamond, weighs 5.11 carats. The reason for the red color of these rare diamonds is explained by very small imperfections within the crystal lattice. In theory, Red Diamonds also belong to the same mineral group as diamonds, with their outstanding feature being color diversity.
7. Blue Pomegranate Gem
In today's world, the blue pomegranate gem is found in various colors such as red, orange, pink, yellow, green, purple, brown, black, and colorless. Among them, the blue pomegranate gem is the rarest, discovered in the late 1990s in Bekily, Madagascar, and in some other places in the United States, Russia, and Turkey. This gemstone has the ability to change color from greenish-blue under sunlight to purple under the light of a hairline lamp. This phenomenon occurs because the blue pomegranate gem contains many Vanadium minerals - a rare metal with green, silver, gray colors. This type of gemstone is priced at $1.5 million USD per carat.
In ancient times, garnet stones were considered lucky charms. The blue pomegranate gem possesses various colors from orange, red, yellow, to shades of blue, purple, brown, and black... But blue is the most favored color due to its elegance and rarity. When placed in a backlight position, the blue pomegranate gem will change color. When changing from green to blue during the day. And if illuminated under a hairline lamp, they will turn purple.
8. Jadeite Emerald
Jadeite Emerald is still considered the most mysterious, rarest, and most expensive gemstone in the world. Due to its ability to change color from blue to red and vice versa, Jadeite Emerald is also known as 'Imperial Jade.' This exquisite gemstone primarily originates from Madagascar. Additionally, it can also be found in Mexico and the state of California (USA). The record price for this gemstone is $3 million per carat. Holding the throne among gemstones for many years is the color-changing jadeite - Jadeite.
Legend has it that Empress Dowager Cixi also possessed such a gemstone, a type of gemstone that she greatly admired and was passionate about. Unlike nephrite (Jade), jadeite (Jadeite) is still regarded as the most mysterious, rarest, and most expensive gemstone that exists to this day. The more vibrant and color-changing the stone, the more expensive it is. Color-changing jadeite exhibits vivid colors and continuous transformations. Therefore, this gemstone is classified as extremely rare. The finest jadeite stones are found in Myanmar, while lower-quality stones are scattered in Guatemala, Russia, Japan, and California. The most expensive Jadeite Gemstone was auctioned at Christie's auction house in 1997. The value of this necklace reached €6,866,000. It was a necklace named Doubly Fortunate, consisting of 27 of these precious gems with a diameter of approximately 5mm.