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The GIA Museum’s “Dreams of Diamonds” exhibit featured more than 4,000 carats of diamonds, and marked the U.S. debut of Alastair Laidlaw and Christine Marsden’s like-named book – a 160-page, 33-lb. tome. Photo by Kevin Schumacher/GIA
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‘Dreams of Diamonds’ Book and Exhibition Celebrate Spectacular Gems

Explore the wondrous world of diamonds in this large book (2 stone 5 lbs and three feet wide when open) and gallery from a past exhibition – that reveals their detail and beauty.

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Rough diamond, yellow in color
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Diamond Research Gives Clues to the Formation of the Continents

Mineral inclusions trapped in diamonds reveal the continents’ construction – and help GIA researchers date diamonds.

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A diamond necklace that features a 100.02 Fancy Intense yellow diamond. The pendant is done in the shape of a musical instrument.
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Bullish Predictions for 2019 Seasonal Sales Despite Concerns; Sotheby’s Hong Kong Auction Sales

US seasonal sales predictions are better than expected. Sotheby’s Hong Kong auction features a 100 ct yellow diamond necklace by GIA alumna Anna Hu.

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A rectangular cut Fancy Deep blue diamond is framed by two pear shaped diamonds.
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Diamond Market in Recovery and Top-End Auction Results

World’s two largest diamond producers say market is stabilising after several months of severe cutbacks in rough sales. Christie’s and Sotheby’s sales.

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A large yellow cushion cut diamond pendant is partially framed with marquis cut diamonds and hangs from a necklace of mixed cut diamonds.
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Yellow Gemstones: Can You Identify Them?

Don’t judge a yellow gem by its colour alone. A variety of gemstones also come in shades of yellow, from diamonds to citrine to garnets.

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Fancy Colour Diamond
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Fancy Colour Diamond Quality Factors

Learn about the factors that make fancy colour diamonds so desirable.

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Fancy-coloured Diamond
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Fancy Colour Diamond History and Lore

While fancy colour diamonds have traditionally been a small part of the diamond business, their popularity and availability have grown in the past few decades.

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Fancy Colour Diamond
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Fancy Colour Diamond Description

Fancy colour diamonds come in almost any colour you can imagine. Red, green, purple and orange are generally the rarest, followed by pink and blue. Yellows and browns are the most common fancy colours, but they’re generally less valuable than the rarer colours.

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Three men at a conference table.
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A Look Back — and Forward — After 40 Years in the Gem and Jewellery Industry

Russell Shor reflects on the people, gems and stories he’s encountered as he’s covered the industry over the years.

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Head shots of a man and woman.
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Diamond Lattice Defects: GIA Researchers Explore Internal Tagging and Grey-Blue-Violet Diamond Colour

GIA scientists recently presented their latest research on diamond tagging and the cause of grey-blue-violet colour in diamonds.

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