998 carat diamond unearthed by Lucara
Photo credit: Lucara

998 carat diamond unearthed by Lucara

Lucara's Karowe Diamond Mine in Botswana just produced one of the five largest diamonds ever found, continuing a series of noteworthy diamond recoveries on those premises.

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IGI Hong Kong certifies largest CVD grown diamond to date

Following a similar benchmark set three months ago, IGI Hong Kong recently certified the largest laboratory-grown diamond received to date. With a finished weight of 12.75 carats, this collection-quality man-made gemstone was fashioned from a staggering 46.20 carat CVD-grown rough crystal

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Keeping diamond color in context
Photo credit: 204park.com

Keeping diamond color in context

Where do you start seeing color in diamonds? Can you see the difference between F and H color? Can you see the difference between D and E color? In full context those answers will become diamond-specific.

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‘Spirit of the Rose’ dances to auction Nov 11
Photo credit: Sotheby's

‘Spirit of the Rose’ dances to auction Nov 11

In just 20 days this 14.83 carat Fancy Vivid Purple-Pink diamond will find a new home, when it's offered via live auction by Sotheby's Geneva. The auction house estimates this incredibly rare find could command up to $38 million.

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Diamond journalist Rob Bates turns author
Image credit: National Jeweler and Amazon

Diamond journalist Rob Bates turns author

Rob Bates is a highly regarded diamond and jewelry industry journalist. Now, drawing on his wealth of knowledge and experience involving the worldwide trade of gemstones and jewelry, Rob has created a fun, fictional work... A mystery novel entitled "A Murder Is Forever."

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102 carat diamond sells for $15.7 million, breaking records
Photo credit: Sotheby's

102 carat diamond sells for $15.7 million, breaking records

A private, anonymous collector bidding by phone from Japan is the new owner of the first high-value item of its kind ever offered "without reserve" by Sotheby's. Originally a 271 carat rough diamond unearthed in 2018 at the Victor Mine in Ontario, Canada, it was cut into this 102.39 carat D Flawless oval shape by Diacore.

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Phenomenal, prismatic, iridescent Ammolite

Today we turn our attention to the optical phenomenon of iridescence, that is the display of dispersive prismatic colors caused by the interference of light - generally due to thin films of gas or liquid - like Iridescent Quartz, Iridescent Agate and Ammolite.

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DeBeers ‘ReSet Collective’ launches with 5 prominent jewelry designers

DeBeers has launched an initiative titled ReSet; a series of collaborations with jewelry designers spotlighting the positive impact of natural diamonds and stimulating conversations about sustainability.

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9.07 carat diamond found on 9/07 in Arkansas
Photo credit: Arkansas Department of Parks, Heritage, and Tourism

9.07 carat diamond found on 9/07 in Arkansas

Kevin Kinard visited Crater of Diamonds State Park regularly for more than 25 years, but never found a diamond until Labor Day 2020. Now he has the distinction of discovering the second largest diamond to ever come from the popular Arkansas tourist site, at just over nine carats.

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Meylor produces record-setting 100+carat black lab-grown diamonds
Photo credit: IGI Worldwide

Meylor produces record-setting 100+carat black lab-grown diamonds

Earlier this month IGI received two large HPHT-produced lab-grown diamonds for analysis and grading. One of those stones has become the Guinness World Record Holder for the largest black lab-grown diamond in history.

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