diamonds

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
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 jewelry sales rising in USA and China
The easing of COVID-19 restrictions, combined with growth in online shopping, has seen a steady rise in diamond jewelry sales across the USA and China. This marks several months of improvement across a broad spectrum of shoppers.
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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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DeBeers’ diamond sales surge by 57% in September
Anglo American is reporting that DeBeers’ rough diamond sales during the eighth cycle of 2020 brought in $467 million USD. Not only is this is a significant surge over 2020’s seventh cycle, which brought in $334 million, it’s a noteworthy increase of 57% over the $297 million realized during the same cycle in 2019.
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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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IGI publishes ‘New Normal’ advice via JCK online
IGI has provided insight and advice to diamond, gem and jewelry industry professionals in tandem with JCK Online’s sponsored-content initiative: “Solving New Trends in the New Normal” addresses explosive growth in two disruptive industry areas.
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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
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
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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See IGI’s dynamic new Grading Report format
We are pleased to announce a new, elevated design for our identification and grading reports. This design update comes 45 years after our first Diamond report was issued in Antwerp, Belgium, in 1975.
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Petra finds 5 rare blue diamonds totaling 85+ carats!
Can we call them the Blues Brothers? Individually weighing 25.75 carats, 21.25 carats, 17.57 carats, 11.42 carats and 9.61 carats, Petra Diamonds reports that these spectacular siblings were assessed to be individual stones, not originally part of a larger diamond.
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IGI diamond grading among the world’s strictest
Another independent analysis has concluded that IGI’s loose diamond grading ranks among the world’s strictest. In an independent comparison of dual-certified diamonds IGI’s color grading was stricter than that of GIA in a majority of cases, with clarity the same or stricter in most cases, as well.
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ALROSA auctions confirm demand for high-quality diamonds
ALROSA reported more than $20 million in revenue generated by special-size rough diamond auctions in Belgium and Israel this month. The diamonds were sold to clients from Belgium, India, Israel and United Arab Emirates.
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Americans are buying diamonds instead of vacations
USA jewelry sales are climbing. Signet Jewelers, the parent of Kay and Jared, saw sales rise at the end of the last quarter and continue to climb in August. Tiffany & company reported the same trend. And diamond jewelry was one of the top product categories at both Macy’s and Bloomingdale’s during the quarter ending August 1.
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This 102.39 carat D Flawless diamond will make history
An exceptionally rare, clear diamond “the size of a lollipop” is being offered without reserve at auction by Sotheby’s. According to the auction house, an item of this historic importance and value has never been offered with no-reserve before.
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Lesotho’s Letseng mine keeps amazing us in 2020
The last two 100+ carat diamonds, unearthed over a span of 48 hours, are the 10th and 11th gem-quality stones weighing more than 100 carats found at Letšeng this year. At an elevation of more than 10,000 feet, the world’s highest diamond mine also boasts the world’s highest value-per-carat.
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‘One Lifetime, One Encounter’ auction honors Argyle mine closure
The Argyle Diamond Mine in the remote east Kimberley region of Western Australia is scheduled to close by the end of 2020 following nearly forty years of production. “One Lifetime, One Encounter” is an auction event, offering a collection of the rarest diamonds extracted there over a year’s production.
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What are Hearts & Arrows diamonds?
Hearts & Arrows (H&A) diamonds are precisely cut to show kaleidoscopic patterns when seen in a special reflective viewer. Typically associated with Excellent-Ideal cuts of superior quality, fashioning the highest levels of H&A optical precision when working with the world’s hardest substance is an exacting process.
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10 Graff diamond jewelry pieces compiled in video
A well-organized compilation of 10 beautiful Graff creations, splendidly set to music. Settle in for 13 minutes and 13 seconds of glorious, uplifting creations from the masters at Graff.
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See this 10-carat LGD’s color transformed from yellow to pink!
This 10+ carat HPHT produced lab-grown diamond was initially graded Fancy Intense Yellow by IGI. When it returned to the lab its color had been changed to Fancy Vivid Pink. IGI confirmed that the color had been shifted from yellow to pink through irradiation using a 5MeV Electron Beam Transfer system.
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Tiffany ‘Full Craftsmanship Journey’ traces diamonds mine to market
Tiffany & Co. has announced a program detailing the provenance of the diamonds they sell, beginning with country and mine of origin. The New-York based jeweler plans to share this “Full Craftsmanship Journey” for every newly-sourced diamond of 0.18 carats or more.
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Design Contest entry EXTENDED to August 31!
IGI has called upon the world’s creatives to step forward, with resounding success. With notice of abundant entries pending, the deadline for submission has been reset to the end of August due to popular demand.
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IGI welcomes GIA and AGS to lab-grown diamond grading
Earlier this month GIA and AGS announced policy changes regarding lab-grown diamonds. IGI is proud to see other organizations adopt our long-held philosophy regarding the dual-channel legitimacy of natural and lab-grown diamonds, and believe professionals and consumers alike will benefit from the increased transparency in our industry.
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