Colored Diamonds

Rio Tinto’s Argyle Pink Diamonds Tender Arrives in London

Rio Tinto’s Argyle Pink Diamonds Tender is on display in London as part of its global exhibition of rare pink, red and violet diamonds.

It also celebrates the launch of its new partnership with UK jeweler, Boodles, the 2016 Argyle Pink Diamonds Tender is in London for the first time since Queen Elizabeth’s Diamond Jubilee in 2012.

Fancy Vivid Pink 16 Carat Diamond Sells For World Record Price

A 16.08-carat cushion-shaped fancy pink diamond was bought for $28,523,925 at Christie’s in Geneva setting a new world auction record for any pink diamond ever offered at auction.

The stone was bought by a private Asian buyer, who named it just after the auction 'Sweet Josephine.'

The Magnificent Jewels sale on 10 November raised a total of $109,492,525, selling 80 percent by lot and 86 percent by value.

Strong Results From Argyle Pink Diamonds Tender, Says Rio Tinto

Rio Tinto’s 2015 Pink Diamonds Tender collection of 65 rare pink and red diamonds from its Argyle diamond mine produced excellent results "reflecting global demand and sustained price growth," the firm said.

Achieving the highest average price per carat since the tender began in 1984, the tender continued its double-digit price growth trajectory.

This year's tender featured diamonds weighing a total of 44.14 carats and included four fancy red diamonds.

Sotheby’s New York Sells Zoe Diamond For Record $32.6M

A rare Fancy Vivid Blue diamond from the celebrated collection of Mrs. Paul Mellon sold for a staggering $32,645,000 ($3,348,205 per carat) – a new world auction record total price for any blue diamond and a new world auction record for price-per-carat for any diamond at Sotheby’s New York headquarters.

The 9.75 carat, pear-shaped diamond was eagerly sought after by seven bidders who competed for 20 minutes for the extraordinary stone, ultimately selling to a Hong Kong private collector who has named the stone The Zoe Diamond.

GIA Makes Surprise New Appointment


Brad Brooks-Rubin has appointed by the GIA to the newly-created post of global director of Development and Beneficiation.

The GIA said the appointment would "strengthen its commitment to bring benefits of the global gem and jewelry industry to producing communities".

Christie’s New York Magnificent Jewels auction generates $65.8 million

The Christie’s Magnificent Jewels auction in New York on December 10 concluded the firm’s 2013 jewelry auction season with sales of $65,790,125. The 495-lot auction was 86 percent sold by lot and 92 percent by value.
A 52.58-carat D-color Internally Flawless Golconda diamond was bought for $10.9 million, while a diamond jewelry collection – Property of an Elegant Lady, by Lev Leviev, was sold for $10.2 million

Europe remains the world’s most mature and underperforming diamond jewelry market

Almost five years after the world’s worst financial crisis for three generations, the repercussions are still being felt in the European market, says diamantaires. One of the wealthiest continents in the world with a potential market of around 350 million people, Europe remains stuck in the doldrums.

Rio Tinto Decides to Retain Diamond Unit

In a major announcement, Rio Tinto brought a close to more than a year of speculation, by saying it aimed to retain its diamond assets after concluding a strategic review which looked at a range of options, including potential divestment.
Rio Tinto Diamonds & Minerals Chief Executive Alan Davies said: “The medium to long-term market fundamentals for diamonds remain robust, fuelled by growing demand for luxury goods in Asia and continuing strong demand in North America. 

GIA’s GemFest in Tokyo puts spotlight on spectacular colored diamonds

Members of the Japanese gem and jewelry industry gained an exclusive insight into the world of colored diamonds when John King, the Gemological Institute of America's (GIA) chief quality officer and noted expert on colored diamonds, presented an update at the GIA's GemFest in Tokyo on April 11.

The inaugural event followed the December 2012 opening of the GIA gem grading laboratory in Tokyo. GIA regularly holds GemFests around the world, providing the latest gemological information to the public and diamond trade.

CIBJO publishes colored stone special report


The third of the CIBJO commissions' Special Reports has been released a month before the opening of the 2013 CIBJO Congress in Tel Aviv on May 7, 2013.

Prepared by the CIBJO Coloured Stone Commission, headed by Nilam Alawdeen,  the report  reviews updates already made to the Coloured Gemstone Blue Book and also those that are being considered. In particular it looks at the nomenclature used to describe gemstone treatments.

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