2018年8月28日 星期二

寶啾寶石報報:30-Carat Fancy Pink Set for Antwerp Sale

 寶啾寶石報報:30-Carat Fancy Pink Set for Antwerp Sale

 

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 Lesotho-focused miner Namakwa Diamonds will sell a 29.59-carat, fancy-pink rough stone in Antwerp this fall.

The company discovered the diamond at its KAO mine in the African country on June 12, according to brokerage firm Bonas-Couzyn, which will facilitate the sale. The stone — named the Rose of KAO — will appear in Antwerp for viewings from September 17 to 28, and bidding in an online tender will close October 1. The auction is part of the fourth sale of KAO goods this year.

Namakwa owns and operates the KAO mine through its subsidiary, Storm Mountain Diamonds. The asset has a record of producing fancy-color diamonds: The miner recovered the 36.06-carat Pink Storm in December 2013, and sold it the following month.

2018年8月22日 星期三

寶啾寶石報報: Melee Parcel Contains Just One Natural Stone 合成小鑽大躍進

 

 寶啾寶石報報:  Melee Parcel Contains Just One Natural Stone   

 

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 The Gemological Institute of America (GIA) found just one natural diamond in a melee parcel containing more than 1,000 undisclosed synthetic stones, according to a recent lab note.

The organization's New York center received 1,102 small diamonds weighing a combined 9.67 carats for its melee-analysis service. Initial screening referred 1,093 of them for further testing, while the GIA could not assess the other nine because they did not meet the service's criteria for examining stones.

Spectroscopic tests confirmed 1,092 of the 1,093 diamonds to be synthetics created using the High Pressure-High Temperature (HPHT) technique. This case represents the largest percentage of undisclosed synthetic melee the GIA has seen in a parcel, researchers Stephanie Persaud, Wuyi Wang, Paul Johnson and Ivana Petriska Balov wrote in the summer 2018 issue of Gems & Gemology, the institute's journal.

"The increase in the amount of synthetic melee submitted — both disclosed and undisclosed — to GIA's laboratories for identification has exponentially increased since GIA began offering its melee-analysis service in 2016," the team wrote.

More commonly, the GIA receives bags of melee containing a mixture of natural and lab-grown diamonds, or with just a few synthetics — a practice known in the trade as "salting," the researchers said.

One notable characteristic of the latest melee batch was the absence of nickel, a catalyst that manufacturers often use in the HPHT process, the team wrote. Gemologists did not detect the element when they put the material through the spectroscopic examination.

"The majority of the HPHT synthetic melee had no detectable traces of [nickel], demonstrating the importance of advanced testing to identify these melees," the authors added.

Image: Sood Oil (Judy) Chia and Towfiq Ahmed/GIA 

2018年8月17日 星期五

寶啾寶石報報:Tiffany to Overhaul Iconic Fifth Avenue Flagship 蒂芬尼翻修第五街的旗艦店

 寶啾寶石報報:Tiffany to Overhaul Iconic Fifth Avenue Flagship  蒂芬尼翻修第五街的旗艦店

 

 

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 Tiffany & Co.'s New York City flagship store will undergo a planned three-year renovation, beginning in 2019. Pictured is the location's Blue Box Café, which opened in 2017.

 

 New York—Tiffany & Co. is planning on a facelift.

The jeweler announced Wednesday that it will completely renovate its New York City Fifth Avenue flagship store beginning in spring 2019.

The company is not confirming the total cost for the renovation, though a calculation by Bloomberg based on the information supplied by Tiffany put it at $250 million at least.

Originally opened in 1940, the space encompasses 10 stories at the corner of 57th Street.

Tiffany CEO Alessandro Bogliolo said in a news release on the renovation: "We are extremely excited about the opportunity to transform our iconic New York flagship store and create a dramatic new experience for customers. Innovation will remain at the forefront of Tiffany's plans for 727 Fifth Avenue, and the newly reimagined flagship will serve as the modern crown jewel of our global store network."

The move comes, surprisingly, after the opening of the Blue Box Café on the revamped home décor floor last year. A representative for Tiffany declined to say if the Fifth Avenue remodel would involve changes to the café or the just-renovated fourth floor in general.

The company did say that, during the renovation, which will last until the end of 2021, it "expects to remain open for business throughout," though it will expand to a neighboring space temporarily, located at 6 E. 57th Street where Niketown used to be, to minimize disruption.

RELATED CONTENT: Tiffany is Modernizing and Streamlining its Design Process
The very first Tiffany store opened in New York City at 259 Broadway in 1837. The headquarters moved around the city until settling in its current spot, which has been featured in films like "Breakfast at Tiffany's," "Sleepless in Seattle" and "Sweet Home Alabama."

When it opened, it was the "one of the most architecturally advanced mercantile buildings of its type, boasting first-of-its-kind central air-conditioning, along with the main floor free of columns, its 24-foot ceiling entirely supported by trusses," the company said.

2018年8月16日 星期四

寶啾寶石報報:Glued-Together Diamond Turns Up at GIA GIA發現鑽石新的黏合優化處理

 


 寶啾寶石報報:Glued-Together Diamond Turns Up at GIA GIA發現鑽石新的黏合優化處理

 

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 A face-up photo of the glued-together diamond recently spotted by graders in the GIA lab in Carlsbad (Photo by Robison McMurtry/GIA) 

 

 August 15, 2018

Carlsbad, Calif.—The Gemological Institute of America said its Carlsbad lab recently received a diamond that had broken in half and been repaired with an adhesive of some sort.

In the summer 2018 issue of Gems & Gemology, GIA research associate Troy Ardon wrote a lab note about a 1.38-carat marquise-cut diamond submitted to the laboratory for colored diamond grading services.

Graders initially noted large fractures and a large cavity on the table. After careful examination under a microscope, they discovered that the stone had been broken in half and then repaired with an "unknown adhesive," a method the lab noted was unusual.

The GIA said there were a number of factors that hinted to it being broken and put back together imperfectly, the first being a large fracture from crown to pavilion showing a "sizeable gap" throughout the diamond.

The fracture indicated it was a repair, rather than two separate diamonds glued together to make a larger stone, because it had an irregular surface, according to Gems & Gemology.

From a certain angle, graders could also see large air bubbles trapped in the fracture.

Additionally, the facets that the fracture transected showed "slight to moderate" misalignment, which the GIA confirmed can't happen during the polishing process.

The GIA said polish lines on the pavilion facets contained a pattern that would've lined up if it wasn't for the fracture that separated them, demonstrating that the breakage occurred after the diamond had been at least somewhat polished. Beyond that, it's not possible to tell when the damage happened, the lab said.

While the application of glue to diamonds to form a diamond-diamond doublet has been done before, the GIA noted that it has never seen a broken diamond repaired with adhesive in this manner.

The lab was not able to grade the diamond because the 4Cs don't apply to "composites" like this. For example, the carat weight would actually represent the sum of the two diamond weights plus that of the adhesive.

2018年8月13日 星期一

寶啾寶石報報: The Once-in-a-Lifetime Gem 一生一遇的寶石

寶啾寶石報報: The Once-in-a-Lifetime Gem 一生一遇的寶石


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 We are so lucky as an industry that we get to be surrounded by such incredible, rare beauty all the time.

For me, this 80.25-carat tsavorite garnet perfectly summed up that advantage.

Tsavorite in any large size is rare, let alone a piece of this size. Add to that an exceptional clarity, and it was one pretty fantastic gem to see in person. This tsavorite, which won first place in the All Other Faceted category of Cutting Edge, was cut by the pros over at Nomads.

2018年8月11日 星期六

寶啾寶石報報:Study: 51 Percent of Millennial Women Buy Jewelry for Themselves 51%的Y世代女性會自己買珠寶

 

 寶啾寶石報報:Study: 51 Percent of Millennial Women Buy Jewelry for Themselves 




 

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 August 10, 2018

New York—Millennial women who purchase jewelry for themselves present a unique opportunity for luxury brands looking to reach Generation Y, a recent survey conducted by MVI Marketing shows. 

A total of 1,001 women between the ages of 25 and 40 located in the United States and with a household income of $75,000 or higher completed the survey, which was conducted online between July 15-20. It focused on three product segments: jewelry, shoes and hotels.

MVI said the results of its study "reinforce reasons for optimism for luxury brands seeking an entry- level point with millennial consumers."

In fact, MVI has named the consumer segment of the millennial female who purchases jewelry for herself  "The Luxury Growth Demographic of Opportunity," because they have a 30-year-plus spending cycle that's just beginning, their brand attachments still are in the formative stage and their brand loyalty can be attained by factors like content engagement, style and adornment.

"You can see all the signs of a demographic segment that will be spending for themselves, and for gifts, in increasing numbers and escalating price points," MVI President Liz Chatelain said.

More than 51 percent of respondents said they purchase jewelry for themselves.

Another 14 percent said they purchase it as a gift for their spouse/partner, 17 percent said they make jewelry purchases together, and 18 percent said their spouse or partner purchase jewelry for them.

When respondents were asked about their motivations for buying jewelry for themselves, the top reasons included being able to get exactly what they want; rewarding themselves for a milestone; "just because;" and commemorating a special memory or trip, among others.

The survey also asked what specific brands respondents owned or were most likely to purchase, and Tiffany & Co., Pandora and Swarovski came out on top. The list also included Alex and Ani, Gucci, Cartier and Tory Burch.

According to the study, nearly 91 percent of survey takers indicated they research a brand before buying it.

Though MVI has done a few other studies about female consumers who buy jewelry for themselves, this was the first time they asked respondents how likely they were to buy a lab-grown diamond.

Forty-three percent indicated they would maybe purchase a lab-grown diamond but don't know much about them; 21 percent said they would probably purchase a lab-grown diamond as they learn more about them; and 13 percent indicated they were very likely to buy a lab-grown diamond.

MVI also asked survey-takers about their preferred metal for jewelry, and the results were led by white metals: 35 percent said white gold, 17 percent said silver and 15 percent said platinum.

Thirteen percent of respondents indicated they preferred rose gold and 11 percent said yellow.

The remainder said they didn't know or didn't have a preference (6 percent) or preferred mixed-metal pieces (3 percent).

The survey also questioned respondents about preferred jewelry designs, and topping the list was diamond jewelry, followed by gemstone jewelry and platinum with diamonds.

2018年8月10日 星期五

寶啾寶石報報: An Award-Winning Sapphire Ring 美麗的黃寶戒

 

 寶啾寶石報報:  An Award-Winning Sapphire Ring  美麗的黃寶戒

 

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 This week, an editor favorite came to town.

The American Gem Trade Association's annual gem cutting and jewelry design contest, the Spectrum Awards, took place in New York over the weekend. On Tuesday, editors were invited to the Ramscale Studio to view all the designs, including those crowned as winners.

Among them: this platinum ring set with an unbelievable 20.26-carat cushion-cut unheated yellow sapphire accented with 3.6 carats of diamonds.

Designed by Gross & Currens of the David Gross Group, a third-generation New York-based jewelry manufacturer, the ring won first place in the Evening Wear category. 

We tried it on for size (see below), but sadly had to leave the Spectrum Awards event without it.

To see a complete list of the winners of this year's Spectrum Awards, read our story on the jewelry design contest.