Last Week's News
Most notable stories from last week were…
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1.) AIGS Launches Jedi Spinel Grading Reports
The neon hot pink to red spinels from Myanmar are often referred to as "Jedi."
If you have not yet read this feature story, we encourage you to do so.
If you missed this last week, the link is below...
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2.) Nature’s Majesty Meets Bvlgari’s Savoir Faire
Coming to the auction market for the first time from a private collection, this magnificent necklace from Bvlgari was realized in 2004 after the house came into possession of an exceptional and rare blue sapphire from Sri Lanka.
If you missed this last week, the link is below...
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3.) The Unmissable Jewellery Design at TEFAF Maastricht 2023
TEFAF Maastricht is widely regarded as the world’s premier fair for fine art, antiques and design. Featuring 270 prestigious dealers from some 20 countries, TEFAF Maastricht is a showcase for the finest art works currently on the market.
If you missed this last week, the link is below...
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Now - On To This Week's News! |
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The Heidi Horten Jewelry Collection
Christie's Geneva: $150+ Million
JAW-DROPPING!!
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The World of Heidi Horten, a spectacular single-owner Jewellery Collection, will be offered by Christie's over a series of auctions in May and November of this year. Value has been estimated at one of the largest ever auctioned topping $150,000,000.
Austrian billionaire Heidi Horten, who passed away suddenly in June of last year 2022, was an avid art and jewelry collector.
Her jewelry collection alone to be auctioned off is said to total over 700 pieces, and is filled with Bulgari, Cartier, Harry Winston, Boivin, and Van Cleef & Arpels, just to name a few.
Important jewels were not uncommon to Horten, who received as a wedding gift, the Wittelsbach Blue diamond, the second largest Fancy Deep Blue diamond in the world. This would later be sold at auction in 2008 and purchased by Laurence Graff, who, with a small amount of re-polishing, renamed the diamond the "Wittelsbach-Graff," and then sold it a few years later.
This will be a jaw-dropping auction catalogue! (Read more below...)
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Clash of the Diamonds!
Natural Diamonds vs. Synthetic Diamonds
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Some say that synthetic diamonds will have their own niche - that they are carving out their own category. Others believe that they will take over the natural diamond business.
If you want to compare this to other synthetic gemstones, like ruby, emerald, and sapphire, well then you might be safe to conclude that natural diamonds and synthetic diamonds will get along in the same space, with synthetics taking a back seat to the natural.
However, if you are one to compare synthetic diamonds to cultured pearls, you might be inclined to believe that synthetic diamonds will crush the natural diamond business, leaving the natural diamond business in the dust, only for the very wealthy who can afford it, financially and socially. (Read more below)
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Low Temperature Heated Sapphires
Time to re-examine stones with older reports?
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SSEF Reports New Findings
The good news is that SSEF has adapted their testing protocols and are now able to get more unambiguous, conclusive answers as to whether the stone has been enhanced using low temperature heat treatment.
The lab does want you to know that these new testing procedures do take a bit longer in the lab.
And, even more important than that, if you have sapphires with older reports, you may want to consider having them re-examined. (Read more below)
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So much more below, and in the Magazine... |
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Those who wish to support the Roskin Gem News Report by placing an Ad, please request a media kit. More contact information is below.
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Issue 12, March 30, 2023
of
the Roskin Gem News Report Newsletter.
Enjoy!
Gary Roskin
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The Heidi Horten Jewelry Collection
Christie's Geneva: $150+ Million
JAW-DROPPING!!
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Spanning from the 1970s to the current day, the collection not only comprises some of the world’s most precious diamonds and coloured gemstones but also includes the most exceptional curation of Bulgari jewels to have ever appeared at auction.
Highlights include the Great Moghul carved emerald necklace by Harry Winston of 362 carats, and the Harry Winston "Briolette of India," seen here in the picture, weighing 90.38 carats (plus the diamond necklace)!
There are TWO very interesting reports you should read; one from Christie's, and the other from Town & Country Magazine, both included here...
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Clash of the Diamonds!
Natural Diamonds vs. Synthetic Diamonds
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What was once considered impossible is now a reality; Synthetic gem quality diamonds are here, they are affordable, and they are creating quite the stir in the market.
So, no worries?
Like Synthetic Colored Stones
Many in the gem world have compared synthetic diamond to synthetic colored gems, such as synthetic emeralds, rubies, sapphires, opals, etc… The technological advances needed to grow gem crystals were, and still are, applauded. When first created, all of these synthetic gem materials, including diamond, were valued not only for their beauty, but also for their technological breakthroughs. They were all expensive to make!
However, once the technological miracle became a reliable commercial production (generally speaking), their costs decreased (for most, costs dropped dramatically), their affordability increased, and they found their own product lines. It has also been noted that they have made little impact on their natural gemstone counterparts.
But will that same scenario happen between
natural and synthetic diamond?
Read on ...
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Low Temperature Heated Sapphires
Time to re-examine stones with older reports?
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Low T Heating
In the Swiss Gemmological Institute's newsletter last week (SSEF), new and additional details were shared regarding the identification of low-T (Low Temperature) heating of pink sapphires, rubies, and all other colour varieties of corundum.
What they tell us in this update is that (1) their equipment is better
(2) their results are better
(3) their response time is a bit longer
and (4) because they are getting better and more conclusive results, you might want to think about having your stones re-examined. in other words: It is time for a reassessment of a previous conclusion.
Here are the details ...
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AIGS Ramps Up Services in China
an Exclusive Interview with Gloria Chen, CEO of AIGS China
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In this exclusive interview, you can gain insight of the coloured gemstone business in China from Gloria Chen, CEO of AIGS China.
You will also have access to first–hand information and analysis of gemstones submitted to gem laboratory, which is a good indication of popularity and trend in China.
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MUZO: Inside the emerald mines
that make Colombia a global giant of the green gem
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NPR radio
Weekend Edition
MUZO, Colombia — Although he has helped transform Colombia's emerald industry, long a source of violence and environmental damage, former U.S. diplomat Charles Burgess admits that he got into the business on a whim.
"I don't have a mining background," he told NPR during a recent tour of the mine he runs near the town of Muzo deep in the Andes Mountains. "I never in my wildest imagination thought I'd be working in any sort of business like this. But it's been fascinating."
- Audio available on NPR - link provided …
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The Scottish Gemmological Association
2023 Annual Conference
April 28th, 2023.
The Association for the Study of Jewelry & Related Arts
ASJRA’S 18th Annual Conference
“Iconic Jewelry Firms”
May 6-7, 2023.
International Gemmological Research Industries
NCJV Conference
“Sourcing gems and diamonds”
Brisbane 30th June – 3rd July, 2023
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If you have not yet read them, here are our
Top Features from Last Week
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1.) AIGS Launches Jedi Spinel Grading Reports
AIGS has recently launched its Jedi spinel grading reports, in order to transform the trade name of Jedi to a strict quality standard. The Jedi grade from AIGS for Spinel is not only a color code, but a comprehensive quality evaluation in six aspects: color, fluorescence, clarity, cut, brilliance, treatment and origin.
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2.) Nature’s Majesty Meets Bvlgari’s Savoir Faire
Without a doubt, this sapphire’s rich and homogenous color is the first thing that draws one’s eyes towards it. Yet upon closer inspection, its high transparency easily inspires awed admiration from the most seasoned connoisseurs.
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3.) The Unmissable Jewellery Design at TEFAF Maastricht 2023
From the moment the fair first opened its doors in 1988 at the MECC in Maastricht, TEFAF has been dedicated to presenting the world’s finest art—across categories—under one roof. What began as a radical idea for a new fair model has transformed into “the greatest fair in the world,” according to one of TEFAF’s first exhibitors, Old Master dealer Johnny van Haeften.
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Sotheby’s: Magnificent Jewels 1
Hong Kong, April 4th
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The Pink Dawn
Set with a cushion-shaped fancy vivid purplish pink diamond weighing 10.05 carats, between two half-moon-shaped diamonds, the shoulders decorated with brilliant-cut diamonds, mounted in 18 karat pink and white gold, size 6.
Accompanied by GIA report no. 1216788621, dated 26 August 2021, stating that the 10.05 carat diamond is Fancy Vivid Purplish Pink, Natural Colour, VS2 Clarity.
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10 history-making jewels
sold by Christie’s
that changed the market
On 30 June 2020, a spectacular D colour diamond ring became the most expensive jewel to sell in an online-only auction, joining a stellar cast of other landmark gems previously sold at Christie’s
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As always, stay informed and keep in touch. I'd like to know where you've been and what gems you've seen.
We will continue to post features on the website, so feel free to log on to the Roskin Gem News Magazine any time at www.RoskinGemNewsReport.com
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If you would like to contribute, or you have read something somewhere that you feel would be perfect to share with the community, then please feel free to contact me directly at Gary@RoskinGemNews.com
I will see you again SOON!
Stay safe and stay healthy!
Gary Roskin
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