GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems have entered the market.
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A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.
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Enter a world not well-known in the West—the world of the maharajas and their jewellery, coveted by the modern-day moguls of business, entertainment and royalty. See the fantastic works of art made today in the form of enamelled Kundan meena jewellery and the regal look of polki diamonds.
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A flower is one of nature’s most delicate delights, so it’s natural that jewellery designers have long found inspiration in them, seeking to capture their fleeting beauty in jewellery.
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Colombia is home to a rainbow of gems, but emeralds – and the tales of lore that surround them – are the country’s most well-known treasures.
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Examines the growing percentage of rough diamonds being sold through auctions, a shift that has caused price volatility while opening up supply to more manufacturers and dealers.
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Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.
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Presents spectroscopic and phosphorescence data of the Blue Moon, a 12.03 ct Fancy Vivid blue diamond discovered at the historic Cullinan mine in early 2014.
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Offers a first-hand look at Sri Lanka’s mining, cutting, jewellery manufacturing and retail sectors, where tradition and innovation converge.
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