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The Sergio (Portuguese: Carbonado do Sérgio) was the largest carbonado and the largest rough diamond ever dug up on earth. [1] It weighed 3,167 carats (633.4 g; 20.36 ozt) and was found above ground in Lençóis (State of Bahia, Brazil) in 1895 by Sérgio Borges de Carvalho.
Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite , and amorphous carbon , with minor crystalline precipitates filling pores and occasional reduced metal inclusions. [ 1 ]
The Black Orlov is a black diamond, also known as the Eye of Brahma Diamond.It weighs 67.50 carats (13.500 g). [1] The diamond—originally 195 carats (39.0 g)—is said to have been stolen in the early 19th century in India.
The 180,000-carat Bahia Emerald has long been held in Los Angeles County Sheriff's Department custody, but a federal judge's ruling could clear the way for it to return to Brazil.
An 836-pound “cursed” emerald worth nearly $1 billion will be returned to Brazil after 15 years under lock and key in Los Angeles. The 180,000-carat Bahia Emerald was smuggled out of the South ...
This is a partial list of the largest non-synthetic diamonds with a rough stone (uncut) weight of over 200 carats (40 grams). [1] The list is not intended to be complete—e.g., the Cullinan (formerly Premier) mine alone has produced 135 diamonds larger than 200 carats since mining commenced.
The history of the Irmandade da Boa Morte ("Sisterhood of the Good Death"), a religious confraternity devoted to the Assumption of the Virgin, is part of the history of mass abduction of blacks from the African coast to the cane-growing catchment area around the port of Salvador, Bahia, known as the Recôncavo Baiano.
The Bahia Emerald is one of the largest emeralds and contains the largest single crystal ever found. The stone, weighing approximately 379 kg (836 lbs) [ 1 ] (approximately 189,600 carats) originated from Bahia , Brazil ; its emerald crystals embedded in black schist .