Gemological Institute of America
The Gemological Institute of America (GIA) is one of the world’s most respected authorities on gem grading, research, and education. Its certifications and standards shape consumer trust and influence pricing across the UK jewellery trade, making it essential for retailers, designers, and wholesalers to stay informed on GIA developments.
Jewellery Focus provides expert coverage on GIA’s work, including updates to grading systems, research findings, training programmes, and their impact on the UK market. Our reporting helps professionals understand how GIA initiatives affect supply chains, certification practices, and business strategies.
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Jul- 2016 -5 JulyEconomy
Brexit fuels uncertainty as polished diamond prices slide in June
Polished diamond prices fell in June and sentiment softened after “relatively weak” Las Vegas and Hong Kong shows, according to the Rapaport Group. The group said steady US demand supported the market but overall demand was sluggish, with Britain’s decision to leave the EU, the US election and continued weakness…
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Jun- 2016 -30 JuneAuctions
Largest diamond discovered in a decade fails to sell at auction
The world’s largest rough diamond found in a decade has failed to sell at a London auction after bids did not reach the minimum reserve price. The 1109-carat ‘Lesedi la Rona’ – the largest rough diamond in existence today – was uncovered by diamond production firm Lucara in November 2015…
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10 JuneAuctions
Blue diamond sells for record-breaking £17.5m
The Cullinan Dream has sold at auction for $25.3m (£17.5m), making it the most expensive fancy intense blue diamond to have ever gone under the hammer. The 24.18-carat diamond – sold at Christie’s Magnificent Jewels & The Cullinan Dream auction in New York on Thursday 9 June – is named…
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7 JuneEconomy
Polished diamond prices dip in May
The price of polished diamonds declined slightly in May as buyers waited for the JCK Las Vegas show, which took place between 3 to 6 June. Despite this, the Rapaport Group’s RapNet Diamond Index (RAPI) said trading at the show was “relatively weak” with slower traffic than in previous years.…
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May- 2016 -25 MayAuctions
World’s largest fancy intense blue diamond could fetch £19.8m
The world’s largest fancy intense blue diamond – the ‘Cullinan Dream’ – to go under the hammer could fetch up to $29m (£19.8m). The 21.18ct diamond will be auctioned as the centrepiece of Christie’s Magnificent Jewels and The Cullinan Dream auction on 9 June 2016 in New York, with the…
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23 MayAppointments
Steven Stone Jewellers appoints new director
Steven Stone Jewellers has appointed Max Stone as director of the family-owned business. Stone, who represents the third generation of the family-owned company, will oversee the company’s Hale showroom in Cheshire, with the firm’s Palm Beach showroom operated by his father, Steven Stone, and its London showroom run by Max’s…
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18 MayAuctions
Pink diamond sells for record-breaking £21.8m
The seller of the most expensive polished diamond ever sold at auction has broke another record with the sale of the largest fancy vivid pear-shaped pink diamond. The 15.38-carat diamond – named ‘Unique Pink’ – sold for $31.56m (£21.8m) at Sotheby’s Geneva on Tuesday 17 March and became the most…
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5 MayAuctions
Largest rough diamond discovered in 100 years could fetch £48m at auction
The largest rough diamond to be discovered in over a century could sell for more than $70m (£48m) at a Sotheby’s auction. The 1109-carat ‘Lesedi la Rona’ – the largest gem-quality rough diamond to be discovered in over a century and the largest rough diamond in existence today – will…
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3 MayEconomy
Polished diamond prices dip in April
Polished diamond trading slowed in April due to sluggish demand at the start of a seasonally-quiet period, according to the Rapaport Group. The group’s RapNet Diamond Index (RAPI) found the price of 1ct, GIA-graded diamonds, slipped 0.3% in April, while the price of 0.3ct and 0.5ct diamonds fell by 1.3%…
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Apr- 2016 -7 AprilAuctions
Record-breaking pink diamond could fetch £27m at auction
The largest fancy vivid pink pear-shaped diamond to ever be offered at auction is expected to go under the hammer for $28m to $38m (£19.9m to £27m). The 15.38-carat ‘Unique Pink’ diamond – unveiled in London today – received the highest possible colour grading for a pink diamond from the…
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