The Portuguese Diamond at 127.01 carats is the largest faceted diamond in the Nation Gem Collection in the Smithsonian Institute,
At 23.10 carats, the Carmen Lúcia Ruby is the largest faceted ruby in the National Gem
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The Spirit of de Grisogono at 312.24 carats is the world's largest cut black diamond, and the world's 5th largest diamond, period. In a
This is the Chalk Emerald, a 37.8 carat emerald from Columbia, nestled in a cluster of 60 pear-shaped diamonds weighing a total of 15 carats. It is housed at the Smithsonian Institute.
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The Centenary Diamond, one of the largest and purest diamonds in existence, weighs 273.85 carats and is insured for at least $100 million
De Beers Centenary Diamond: $100,000,000 The De Beers Centenary Diamond were classified as D levels by the Gemological Institute of America. It’s the highest grade of a diamond that colorless and internally and externally flawless. The diamond itself is 273.85 carats (54.77 grams) in weight. This diamond is the 3rd largest diamond has been produced by De Beer’s Premier Mine.
The Hope Diamond, weighing in at an astonishing 45.52 carats, this deep blue diamond is described as the "most famous diamond in the world." After having many previous owners and being notoriously cursed, Harry Winston purchased the gem in 1949. But it wasn't until Smithsonian mineralogist George Switzer stepped in that things got really interesting. Switzer persuaded Harry Winton to donate the diamond to the museum. On November 10, 1958,
This is the Chalk Emerald, a 37.8 carat emerald from Columbia. Columbia is the major source of emeralds. It is nestled in a cluster of 60 pear-shaped diamonds weighing a total of 15 carats. It is housed at the Smithsonian Institute.
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.
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The Gruosi Diamond: a heart-shaped black diamond, the largest black diamond of such cut in the world, weighing 115.34 carats. This heart is
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 by sophia
At 55,000 carats, this opal matrix found in the opal fields of South Australia is the world’s largest. It is valued at over one million dollars...
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
The Pink Star is the largest internally flawless pink diamond that the Gemological Institute of America (GIA) has ever gradeddiamond
Queen Marie of Romania's cushion-shaped sapphire weighing 478.68 carats. It is the third largest gem-quality cut sapphire.
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Discovered in 1995 in Madagascar, Millennium Sapphire is the world’s largest sapphire. It is an astounding 61,500 carats in weight.
The Steinmetz Pink is the diamond weighing 59.60 carats. The color defined is Fancy Vivid Pink by the Gemological Institute of America. The ...
The Jubilee diamond: This glorious colorless, cushion-shaped diamond with a weight of 245.35 carats ranks as the sixth largest diamond in
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.
Window Rock (Navajo: Tségháhoodzání) is the seat of government and capital of the Navajo Nation, the largest territory of a sovereign Native American nation in North America.
Benedetto La Cremona Azzurra (from the late Scott Chinery Blue Guitars Collection, Smithsonian Institute)
The Deep-Blue Wittelsbach-Graff Diamond. The biggest blue diamond in the world at 31.06 carats
The Pink Star One of the world’s natural treasures. The largest known fancy vivid pink diamond in the world, Internally Flawless, weighing 59.60 carats.
Thirteen sparkling diamonds curve gently to form this elegant necklace. Diamonds graduate in size, with the largest in the center. Two carats total diamond weight. $5,370.00
A 203 carat diamond is more like a paper weight than anything you can actually wear. The Millennium Star Diamond is the largest flawless pear-shaped diamond, it was 777 carats in the rough, making it the 6th largest diamond ever found. It was discovered in the early 1990′s in then Zaire, now the Democratic Republic of Congo and purchased by De Beers, for an undisclosed amount.
Christie’s Dubai announce the sale of the largest private collection of jewellery ~ 6460 carats of diamonds in this set!!! 27th Oct 2010
The Cora Sun-Drop is among the most stunning diamonds in the world, so rare that it is almost impossibe to determine its value. Which is why no-one has even tried. At 110-carats, the Cora Sun-Drop is roughly the size of a woman's thumb and is the largest vivid yellow pear-shaped diamond known in the world. Its unusual yellow colour stems from the very small percentage of nitrogen within the carbon structure of the stone. Diamonds with a strong saturated colour represent only a tiny percenta...
The Roebling Opal :: The stunner at 2565 carats rests with the Smithsonian National Museum of Natural History.