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26100cts - World's Rarest & Largest Collector's Gem -Super Swiss Blue Topaz - NR

Star of Africa, the world's largest flawless cut diamond. It is 530 carats! By davmirsim

The El-Dorado Topaz, which weighs a whopping 31,000 carats (13.67 lbs.) currently holds the crown as the largest faceted gemstone in the world. Originally discovered in 1984 in mineral-rich Minas Gerais, Brazil, the pre-cut El-Dorado crystal tipped the scales at a mind-boggling 81.57 lbs.

Weighing in at 325.14 carats and priced well over two million dollars, this extraordinary Tsavorite is one of the largest most valuable gems ever to be discovered in East Africa.

There are two categories of opals - common and precious. The Precious opals are composed of three groups: white, black, and fire opal.Fire opal are: Brings out spontaneous action Initiates new ideas Stimulates enthusiasm Acts as a magnet to draw in money or customers to a business

"There were formerly two pearls, the largest that had been ever seen in the whole world: Cleopatra, the last of the queens of Egypt, was in possession of them both, they having come to her by descent from the kings of the East." This is the largest round pearl in the world now.

18 ton Nephrite Jade boulder found in Canada in 2000.Considered the world’s largest piece of pure Jade.

Dom Pedro Aquamarine - The world's largest cut and polished aquamarine. Housed in the permanent collection of the Houston Museum of Natural Science. The finished piece is nearly 14 in tall and weighs 10,363 carats, or about 5 lbs. It is estimated to have $ 5-6 million worth of auquamarine in it.

world's largest emerald (size of a watermelon)

The Steinmetz Pink was discovered in southern Africa and is the largest Fancy Vivid Pink diamond known in the world. It weighs 59.60 carats and has been graded as Internally Flawless.

The Most Expensive Gemstones in the World Infographic - more on the site.

7860cts - Unique Largest Collector's Gem - Natural Neon Swiss Blue Topaz Brazil in Jewelry & Watches | eBay

The world's largest red diamond is known as the Red Shield, and weighs only 5.11 carats, compared with over 600 carats for the largest cut diamond of any kind.

Blue Tourmaline - Brazil

Boytroidal Chalcedony. Botryoidal (grape-like) structures manifest internally as "turtle-backing" or sometimes externally as "bubble-top" surfaces.

Quartz Crystal

Natural Blue Topaz

Topaz

A faceted topaz weighing 22,892.50 carats, making it the largest cut yellow topaz in the world, as well as one of the largest faceted gems in the world, period.

Largest Carved Emerald in the World

Beautiful purple and blue boulder opal and opalized wood...cut by Bill Kasso