"Light of the Desert", the world's largest faceted Cerussite gem (898 carats), Royal Ontario Museum. Cerussite is one of the only gems with adamantine (diamond-like) luster.

"Light of the Desert", the world's largest faceted Cerussite gem (898 carats), Royal Ontario Museum. Cerussite is one of the only gems with adamantine (diamond-like) luster.

Diamante azul de 9,75 quilates, em forma de pera.  Fotografia: Sotheby's/AFP.

Imagens do dia - 21 de novembro de 2014

Diamante azul de 9,75 quilates, em forma de pera. Fotografia: Sotheby's/AFP.

No Reserve Opal Online Auctions 25 x 22 x 18mm 55 carats Auction #535097 Opal Auctions

55Ct Super Colour Contra Luz Natural Ethiopian Welo Rough Opal

No Reserve Opal Online Auctions 25 x 22 x 18mm 55 carats Auction #535097 Opal Auctions

Rare diamond

Diamante descoberto na África do Sul é avaliado em US$ 10 milhões

A rara pedra preciosa pesa gramas. Entenda aqui como a indústria de diamantes conquistou o mundo.

BONHAMS - Lightning Ridge, Australia  Vivid and very "present", this fine gem opal displays predominantly red play-of-color with spectral broad flashes of green, orange, yellow and blue, with true black potch to the reverse of the oval cabochon. This is as fine a stone for the serious collector as can be desired.  Weighing approximately 10.39 carats and measuring 16.5 x 13.0 x 6.5mm Sold for US$ 68,500 inc. premium

BONHAMS - Lightning Ridge, Australia Vivid and very "present", this fine gem opal displays predominantly red play-of-color with spectral broad flashes of green, orange, yellow and blue, with true black potch to the reverse of the oval cabochon. This is as fine a stone for the serious collector as can be desired. Weighing approximately 10.39 carats and measuring 16.5 x 13.0 x 6.5mm Sold for US$ 68,500 inc. premium

Dom Pedro Aquamarine.10,363 cts (Pedra Azul, Minas Gerais, Brazil) is the 'largest single piece of cut-gem aquamarine' in the world to date, according to Smithsonian, The National Museum of Natural History.

Dom Pedro Aquamarine.10,363 cts (Pedra Azul, Minas Gerais, Brazil) is the 'largest single piece of cut-gem aquamarine' in the world to date, according to Smithsonian, The National Museum of Natural History.

A mina do Lulo, na Lunda Norte, encontrou o segundo maior diamante da história de Angola, descrito como uma pedra excepcional, com o peso de 227 quilates. A descoberta, anunciada pela Lucapa Diamond Company, surge cerca de um ano depois da extracção, no mesmo local, do maior diamante de sempre do país, no caso de 404 quilates.

Encontrado segundo maior diamante da história de Angola

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