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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May- 2017 -16 MayCurrent Affairs
GIA warns of ‘hybrid’ diamonds
The Gemological Institute of America (GIA) has warned of “hybrid” diamonds entering the supply chain after uncovering a natural diamond with a blue synthetic coating. Claiming that the stone was the first of its kind that the institute had encountered, it reported that a number of “unusual characteristics” gave away…
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Apr- 2017 -24 AprilCrime
GIA creates fake diamond detector
The Gemological Institute of America (GIA) has launched a device that can detect synthetic diamonds – even those already mounted in jewellery. Until now, the majority of detectors could only determine the authenticity of loose stones. The device created by the GIA will use advanced spectroscopic technology, which can pinpoint…
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6 AprilTrade Organisations
GIA creates free gem guide for artisanal miners
The Gemological Institute of America (GIA) has produced a gem guide which they will give to artisanal miners free of charge. Working in association with NGO Pact and women’s mining communities in Tanzania, the guide offers basic gemmological and market knowledge in gem-producing areas. It has been launched as a…
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4 AprilAuctions
‘Pink Star’ diamond sells for record-breaking £57m
A rare diamond known as the ‘Pink Star’ has been sold at auction in Hong Kong for $71m (£57m) – a new world record for any gemstone sold at auction. The oval-cut pink diamond, which weighs almost 60 carats, is the largest internally flawless vivid pink diamond that the Gemological…
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Jan- 2017 -3 JanuaryEconomy
Diamond prices decline in December amid ‘India liquidity crisis’
Polished diamond prices softened in December as Indian liquidity dried up due to the government’s demonetisation policy, which eliminated 500 and 1,000 rupee notes. The RapNet Diamond Index (RAPI), from the Rapaport Group, found the price of 1-carat, GIA-graded, polished diamonds fell 1.3% during the month, while 3-carat diamonds and…
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Dec- 2016 -14 DecemberRetailers
Harrods to present one of world’s ‘rarest diamonds’
Luxury department store Harrods has unveiled what it claims is one of the world’s rarest diamonds. The 228.31-carat gem is referred by its owner – who chose to remain anonymous – as the ‘Harrods Diamond’ and has been kept secret in the Knightsbridge store’s safe deposit until now. The pear-shaped…
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6 DecemberEconomy
Polished diamond prices increase in November
Polished diamond prices increased in November, despite a slowdown in trading as Indian liquidity dried up and manufacturing shut down for Diwali. The latest RapNet Diamond Index (RAPI) from the Rapaport Group sentiment improved as the month began, with stock markets rallying to record highs on Thanksgiving weekend (28 Nov)…
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Nov- 2016 -9 NovemberAuctions
‘Extremely rare’ Kashmir sapphire to headline Bonhams’ auction
A collection of diamonds and gemstones – including a 14-carat Kashmir sapphire – will headline the final Bonhams London Fine Jewellery sale of the year on Sunday 4 December. The “extremely rare” Kashmir sapphire single-stone ring, weighing 14.3-carats, is cushion-shaped with no indications of heating and has been estimated to…
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Oct- 2016 -11 OctoberAuctions
‘Extremely rare’ blue diamond Cartier ring could fetch £20.3m
Sotheby’s has announced it will auction an “extremely rare” fancy-vivid blue diamond ring by Cartier, which could fetch up to $25m (£20.3m). ‘The Sky Blue Diamond’ will be one of the star lots at Sotheby’s Geneva Jewellery sale on 16 November and will be exhibited in the auction house’ New…
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7 OctoberQ&A Sessions
COMPANY Q&A: Polished diamonds with Monnickendam
With more than 100 years in the industry, Monnickendam is one of the oldest and largest sellers of polished diamonds in the UK. Neil Holness, director of the company, talks to us about the company’s offering [divider style=”solid” top=”20″ bottom=”20″] hen was the company founded? We were set up in…
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