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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Dec- 2015 -8 DecemberCurrent Affairs
Polished diamond prices increase for first time in six months
Polished diamond prices increased in November for the first time in six months, boosted by shortages of select categories and seasonal holiday demand. That is according to the latest RapNet Diamond Index (RAPI) which found 1-carat, GIA-graded diamonds rose 0.7% in price in November – its first increase in six…
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Oct- 2015 -29 OctoberCurrent Affairs
RapNet suspends members suspected of falsifying GIA reports
RapNet, the diamond trading network from Rapaport, has suspended 10 members pending further investigations surrounding alleged falsifications of Gemological Institute of America (GIA) reports. RapNet said the members have also been suspended by the GIA for allegedly participating in a scheme that hacked into the GIA’s computer system and upgraded…
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Sep- 2015 -21 SeptemberAuctions
Sotheby’s to auction rare 12ct ‘Blue Moon’ diamond
Auction house Sotheby’s Geneva is set to auction the rare ‘Blue Moon’ diamond with an estimated value of $35-55m (£22.6m-£35.4m). The diamond is the centrepiece of the ‘Magnificent Jewels’ auction and Noble Jewels in Geneva on November 11. It weighs 12.03 carats and has been graded ‘fancy vivid blue’, the…
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Aug- 2015 -4 AugustProduct Launches
GIA introduces digital Diamond Focus Report’
The Gemmological Institute of America (GIA) has announced a new digital Diamond Focus Report. The low-cost digital report will be for natural, D-to-Z colour, round brilliant-cut diamonds that weigh between 0.15 and 0.29 carats. The information included in the report – which includes carat weight, color, clarity, cut grades, polish…
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Jun- 2015 -24 JuneOpinion
SOAPBOX: Over-grading must be stamped out
The global diamond industry is currently facing a range of tough challenges. But, says ERNIE BLOM, the issue of apparent over-grading of diamonds by some labs must be treated as a priority. As you would expect from an organisation such as the World Federation of Diamond Bourses (WFDB), which represents…
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17 JuneProduct Launches
Serendipity Diamonds launches CanadaMark diamond engagement rings
Serendipity Diamonds, a UK-based diamond and jewellery supplier, has added traceable, ethically-sourced CanadaMark diamond engagement rings as part of its offering. The company said it created its first 100% traceable diamond engagement ring commission earlier this month – using a combination of Fairtrade Gold and CanadaMark diamonds. CanadaMark diamonds are…
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May- 2015 -19 MayEditor's Blog
Without tough penalties, this diamond grading issue will become a crisis
Put yourself in the shoes of one of your customers, for just a moment. You’ve saved for several weeks or even months to buy yourself or a loved one an expensive watch, locket or ring. You’ve been eyeing up what’s in the windows whenever you pass a jeweller, and probably…
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13 MayCurrent Affairs
WFDB express concern over undisclosed diamond treatment
The president of the World Federation of Diamond Bourses (WFDB), Ernie Blom, today expressed his concerns over the discovery by the GIA of a shipment of allegedly treated diamonds. Yesterday, the Gemological Institute of America (GIA) said that some 500 colourless to near-colourless diamonds have been submitted primarily to its…
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12 MayInternational
GIA notifies trade of potential undisclosed diamond treatment
Approximately 500 colourless to near-colorless diamonds submitted primarily to GIA’s grading laboratory in Ramat Gan, Israel, were potentially subjected to an undisclosed temporary treatment, the body has announced. GIA said it believes that the treatment “temporarily masks the body colour of the diamond, resulting in a colour grade that can…
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Mar- 2015 -4 MarchEvents
GIA and De Beers to discuss synthetics at Basel
Researchers from the Gemological Institute of America (GIA) and De Beers will discuss ‘concerns’ over synthetic diamonds at GIA GemFest at Baselworld, March 22. GIA said that technology for creating synthetic diamonds has “improved significantly” over the last decade and, as a result, gem-quality synthetic diamonds have appeared in greater…
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