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Petra Cullinan blue 150
Petra Sells 20ct. Blue Diamond for $15M
Petra Diamonds sold a 20-carat blue diamond from its Cullinan mine in South Africa for just under
News Nov 17, 2019 Rapaport News
Petra Diamonds
Petra Recovers 20ct. Blue Diamond
Petra Diamonds has unearthed a blue diamond weighing 20.08 carats at its Cullinan mine in South Africa, it said
News Sep 24, 2019 Rapaport News
Hope diamond
GIA Reveals Why Diamonds Are Blue
Blue diamonds may get their color from traces of boron contained in the floors of ancient oceans, according
News Aug 02, 2018 Rapaport News
Farnese Blue
Storied Blue Diamond Sells for $7M at Sotheby’s
The historic Farnese Blue diamond smashed its pre-sale estimate at Sotheby’s auction in Geneva on Tuesday. The 6.16-carat,
News May 16, 2018 Rapaport News
Christies 150
Blue Diamond Tops Christie’s New York
A 3.09-carat blue diamond smashed its pre-sale estimate at Christie’s Magnificent Jewels auction in New York last week.
News Apr 24, 2018 Rapaport News
Sotheby's Hong Kong blue diamond April 2018
Top Jewels Fail to Sell at Sotheby’s Auction
A blue diamond ring and a jadeite bracelet both failed to find buyers at Sotheby’s Hong Kong sale. Most
News Apr 08, 2018 Rapaport News
Sothebey's Farnese Blue
Royal Blue Diamond Surfaces After 300 Years
Sotheby’s will offer the historic Farnese Blue diamond at its Geneva sale in May, the first time
News Mar 22, 2018 Rapaport News
Bonhams 4.03ct. blue diamond
Bonhams to Auction 4.03ct. Blue Diamond
A fancy intense blue diamond will lead Bonhams’ London auction next month, with the company estimating
News Aug 21, 2017 Rapaport News
blue diamond
Petra's Revenue -41% to $96M in 3Q
Petra Diamonds reported that revenue fell 41 percent year on year to $96.1 million in the third quarter that
News Apr 16, 2015 Jeff Miller
blue diamond
Petra Sells 122.52-Ct. Blue Diamond for $28M
Petra Diamonds has sold a 122.52-carat blue diamond recovered from its Cullinan mine for $27.6 million
News Sep 16, 2014 Deena Taylor
Cora Blue Rough
Blue Moon Diamond Goes on Display in L.A.
A rare 12-carat, internally flawless, blue diamond, known as the Blue Moon is on display at the Natural History Museum
News Sep 14, 2014 Deena Taylor
Finsch Mine
Petra's 3Q Revenue +55% to $164M
Petra Diamonds reported that revenue rose 55 percent year on year to $163.9 million during the third quarter
News Apr 23, 2014 Deena Taylor
Letseng Mine
Gem Diamonds' Letšeng Sales +57% in 4Q
Gem Diamonds reported that rough diamond sales from the Letšeng mine in Lesotho jumped 57 percent year
News Jan 28, 2014 Deena Taylor
Finsch Mine
Petra's 1H Revenue +19%, Production +33%
Petra Diamonds reported that revenue grew 19 percent year on year to $185.5 million for the first half
News Jan 23, 2014 Deena Taylor
Petra 26ct Blue Jan 2014
Petra Recovers 29.60-Ct. Blue Diamond at Cullinan
Petra Diamonds recovered a 29.60-carat, vivid blue diamond at its Cullinan mine in South Africa. The diamond has
News Jan 21, 2014 Deena Taylor
Gem Diamonds12.47ct blue
Gem Diamonds Recovers Two Rare Diamonds at Letšeng
Gem Diamonds recovered a rare blue,12.47-carat diamond and an 83.8-carat exceptional-quality white diamond from its Letšeng mine
News Sep 29, 2013 Deena Taylor
blue diamond
Petra Sells Blue Rough Diamond for $17M
Petra Diamonds sold an exceptional 25.50 carat blue diamond that was recovered from its Cullinan mine
News May 24, 2013 Jeff Miller
blue diamond ring
Blue Diamond Fetches Almost $2M Per Carat at Bonhams
Bonhams London sold an extremely rare 5.30-carat, fancy deep-blue diamond today for $9.5 million (GPB 6.2
News Apr 24, 2013 Jeff Miller
Cullinan Blue April 2013
Petra Recovers 26-Ct. Blue Diamond at Cullinan
Petra Diamonds recovered a high-quality top-color 25.50-carat blue diamond from its Cullinan mine in South Africa.The diamond
News Apr 17, 2013 Deena Taylor
Sotheby's Hong Kong Blue Diamond
Fancy Vivid Blue 6ct. Diamond Sells for $10M
Sotheby’s Hong Kong received a record price for a fancy vivid blue diamond sold at auction this week
News Oct 06, 2011 Avi Krawitz
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