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Russian company produces 5ct synthetic diamond

Russian company produces 5ct synthetic diamond

New Diamond Technology claims to have produced largest man-made gem.

1

Gem Diamonds 198ct white diamond sells for GBP6.5m

Gem Diamonds 198ct white diamond sells for GBP6.5m

Letšeng stone said to represent "robust demand" for valuable diamonds.

GIA launches lower-cost fee structure for QA tests

GIA launches lower-cost fee structure for QA tests

Institute reduces per-stone fee for synthetic and natural testing.

De Beers launches melee synthetic screening device

De Beers launches melee synthetic screening device

New automated system can run through 500 carats of stones at once.

Petra scores 75% net profit boost in annual report

Petra scores 75% net profit boost in annual report

Preliminary stats shows 20% rise in revenue and 17% production boost.

Tanzanite Foundation announces restructure

Tanzanite Foundation announces restructure

Structural overhaul follows recent closure of New York office.

De Beers launches pre-owned diamond valuations

De Beers launches pre-owned diamond valuations

Company to provide diamond valuations for consumers trading stones.

De Beers Group confirms new registration period

De Beers Group confirms new registration period

Registration for 2015 to 2018 Sightholder period to open on August 25.

GIA hires new senior VP of global development

GIA hires new senior VP of global development

Anna Martin to "broaden and deepen GIA's relationships with clients".

Higher diamond prices impact Blue Nile Q2 results

Higher diamond prices impact Blue Nile Q2 results

US diamond jeweller adjusts pricing on jewellery as sales drop 1.3%.

De Beers updates allocation model for rough stones

De Beers updates allocation model for rough stones

Changes create greater purchasing flexibility for non-Sightholders.

GIA team uncovers gemstone treasures in Brazil

GIA team uncovers gemstone treasures in Brazil

Team went on fact-finding trip to emerald and tourmaline mining areas.

Angola to take on diamond market with 20% boost

Angola to take on diamond market with 20% boost

Angolan government plans to increase production by 20% to 10m carats.

GIA to host fourth GemFest seminar in Tokyo

GIA to host fourth GemFest seminar in Tokyo

Free seminar to discuss gem identification challenges across Japan.

Gemfields rough ruby auction generates US$33.5m

Gemfields rough ruby auction generates US$33.5m

Rough ruby and corundum gems sold in Singapore for US$18 per carat.

Petra recovers 122.52ct blue diamond at Cullinan

Petra recovers 122.52ct blue diamond at Cullinan

Rare gem discovered in South African mine will enter market from July.



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