Largest ever CVD laboratory-grown diamond hailed a “remarkable achievement”

 

The International Gemological Institute’s (IGI) Hong Kong laboratory has certified the largest chemical vapor deposition (CVD) laboratory-grown diamond received to date.

With a finished weight of 12.75 carats, this collection-quality man-made gemstone was fashioned from a 46.20 carat CVD-grown rough crystal.

According to its creator, Shanghai Zhengshi Technology, it is the largest CVD lab-grown diamond ever produced.

“For the past 15 years, IGI has been at the forefront of lab-grown certification and education,” stated IGI CEO, Roland Lorie. “With this milestone, the Institute continues to establish itself as the prominent leader in the industry and opens the door for future opportunities to exceed current gemological standards.”

IGI gemologists confirmed the 12.75ct stone was Type IIa, giving it exceptional chemical purity and transparency, with VVS2 clarity, F color, and triple-excellent marks in cut-quality and finish.

Following detailed scientific analysis, the laboratory substantiated that the stone had not undergone any post-growth treatments, so it can be categorised as a pure CVD diamond.

“A laboratory-grown diamond of this carat weight, with such a high clarity and color grade, is a remarkable achievement in CVD cultivated diamond technology,” said IGI Hong Kong managing director, Bob Van Es. “As the industry leader in the certification of laboratory-grown diamonds, IGI will continue to follow these new developments closely.”

This news comes only three months after the IGI analysed the Guinness World Record-holding biggest black lab-grown diamond.

Source: DCLA

Largest ever CVD laboratory-grown diamond hailed a “remarkable achievement”

 

The International Gemological Institute’s (IGI) Hong Kong laboratory has certified the largest chemical vapor deposition (CVD) laboratory-grown diamond received to date.

With a finished weight of 12.75 carats, this collection-quality man-made gemstone was fashioned from a 46.20 carat CVD-grown rough crystal.

According to its creator, Shanghai Zhengshi Technology, it is the largest CVD lab-grown diamond ever produced.

“For the past 15 years, IGI has been at the forefront of lab-grown certification and education,” stated IGI CEO, Roland Lorie. “With this milestone, the Institute continues to establish itself as the prominent leader in the industry and opens the door for future opportunities to exceed current gemological standards.”

IGI gemologists confirmed the 12.75ct stone was Type IIa, giving it exceptional chemical purity and transparency, with VVS2 clarity, F color, and triple-excellent marks in cut-quality and finish.

Following detailed scientific analysis, the laboratory substantiated that the stone had not undergone any post-growth treatments, so it can be categorised as a pure CVD diamond.

“A laboratory-grown diamond of this carat weight, with such a high clarity and color grade, is a remarkable achievement in CVD cultivated diamond technology,” said IGI Hong Kong managing director, Bob Van Es. “As the industry leader in the certification of laboratory-grown diamonds, IGI will continue to follow these new developments closely.”

This news comes only three months after the IGI analysed the Guinness World Record-holding biggest black lab-grown diamond.

Source: DCLA

Synova’s Automated Cutter to Tackle Fancy Shapes

 

Swiss technology provider Synova has expanded its automated diamond-cutting system to include fancy shapes, it said Monday. 

The company, which is part-owned by De Beers, unveiled the DaVinci Diamond Factory last year at the Dubai Diamond Conference. Synova claims the machine will significantly speed up diamond manufacturing from weeks to hours, improve accuracy and symmetry, and reduce costs. However, the version it initially launched could only cut round-brilliant diamonds with up to 57 facets.

“The pandemic restrictions had us more or less blocked from selling in the first half, so instead of sitting here and doing nothing, we developed the machine and made it market-ready,” Joerg Pausch, head of the diamond business at Synova, told Rapaport News. “We developed software add-ons that will allow for cutting of automated fancy shapes. After the first announcement, people were calling us asking if it can do fancy shapes, and that has actually become our strongest request from the market.”

Synova’s initial testing of the automated fancy shapes has shown “very promising results,” it noted. The technology provider will release the new software early next year.

The company has already received a number of orders for the DaVinci from Europe, South Africa and North America, Pausch noted. It also intends to develop the machines to include more automation, he added.

Source: DCLA

Synova’s Automated Cutter to Tackle Fancy Shapes

 

Swiss technology provider Synova has expanded its automated diamond-cutting system to include fancy shapes, it said Monday. 

The company, which is part-owned by De Beers, unveiled the DaVinci Diamond Factory last year at the Dubai Diamond Conference. Synova claims the machine will significantly speed up diamond manufacturing from weeks to hours, improve accuracy and symmetry, and reduce costs. However, the version it initially launched could only cut round-brilliant diamonds with up to 57 facets.

“The pandemic restrictions had us more or less blocked from selling in the first half, so instead of sitting here and doing nothing, we developed the machine and made it market-ready,” Joerg Pausch, head of the diamond business at Synova, told Rapaport News. “We developed software add-ons that will allow for cutting of automated fancy shapes. After the first announcement, people were calling us asking if it can do fancy shapes, and that has actually become our strongest request from the market.”

Synova’s initial testing of the automated fancy shapes has shown “very promising results,” it noted. The technology provider will release the new software early next year.

The company has already received a number of orders for the DaVinci from Europe, South Africa and North America, Pausch noted. It also intends to develop the machines to include more automation, he added.

Source: DCLA

Luminous Diamonds’ Debut Collection Celebrates Your Inner Glow

 

The new fine jewelry company is a leader in rare fluorescent stones.

All diamonds shimmer when light hits them. Under master hands, they are cut into interesting shapes that spark joy. Gems from Luminous Diamonds, a new fine jewelry brand, however, have an attribute that many precious stones don’t: They glow.

Luminous Diamonds’ parent company, Alrosa, is a leader in sourcing fluorescent stones, which are formed under unique geological conditions that leave trace elements during the carbon crystallization process. As a result, Luminous Diamonds shine extra bright in the sun and, most intriguingly, emit a blue glow under UV light.

“These diamonds are stunning, luminous, and make a statement,” says Rebecca Foerster, Alrosa’s president of North America. “They reflect the way modern women wear confidence like a rare jewel, and they dare us all to stand out by sharing our inner selves. Greatness in people, like diamonds, is made under pressure. When a woman follows her own inner light, others see it. Our diamonds are an enduring reminder of this light.”

To highlight this point, Luminous Diamonds enlisted female leaders from disparate industries to model its debut collection in a campaign titled Greatness Under Pressure. They are WNBA athlete Skylar Diggins-Smith, attorney and travel writer Cynthia Andrew, violinist Ezinma Ramsay, gender-fluid advocate Elliott Sailors, model Denise Bidot, and photographer Marian Moneymaker.

The 28-piece collection consists of brilliants and pavé diamonds on open-work hexagon settings. They include long necklaces with pendants, crawler and chandelier earrings, and bracelets. Each design comes with an illuminator charm that emits UV light so you can get that inner glow all the time.

Source: DCLA

Luminous Diamonds’ Debut Collection Celebrates Your Inner Glow

 

The new fine jewelry company is a leader in rare fluorescent stones.

All diamonds shimmer when light hits them. Under master hands, they are cut into interesting shapes that spark joy. Gems from Luminous Diamonds, a new fine jewelry brand, however, have an attribute that many precious stones don’t: They glow.

Luminous Diamonds’ parent company, Alrosa, is a leader in sourcing fluorescent stones, which are formed under unique geological conditions that leave trace elements during the carbon crystallization process. As a result, Luminous Diamonds shine extra bright in the sun and, most intriguingly, emit a blue glow under UV light.

“These diamonds are stunning, luminous, and make a statement,” says Rebecca Foerster, Alrosa’s president of North America. “They reflect the way modern women wear confidence like a rare jewel, and they dare us all to stand out by sharing our inner selves. Greatness in people, like diamonds, is made under pressure. When a woman follows her own inner light, others see it. Our diamonds are an enduring reminder of this light.”

To highlight this point, Luminous Diamonds enlisted female leaders from disparate industries to model its debut collection in a campaign titled Greatness Under Pressure. They are WNBA athlete Skylar Diggins-Smith, attorney and travel writer Cynthia Andrew, violinist Ezinma Ramsay, gender-fluid advocate Elliott Sailors, model Denise Bidot, and photographer Marian Moneymaker.

The 28-piece collection consists of brilliants and pavé diamonds on open-work hexagon settings. They include long necklaces with pendants, crawler and chandelier earrings, and bracelets. Each design comes with an illuminator charm that emits UV light so you can get that inner glow all the time.

Source: DCLA

De Beers sales rise 12% as diamond demand recovers

 

De Beers Group announced on Wednesday that sales of rough diamonds rose more than 12% in the latest sales cycle, as demand improves on the back of easing covid-19 restrictions and ahead of the holiday season.

Sales of $450 million between November 2 and November 16 were higher than the $400 million a year earlier, but declined from the $467 million in the eighth cycle between September 21 and October 9.

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“Steady demand for rough diamonds continued in the ninth sales cycle of the year, reflecting stable consumer demand for diamond jewellery at the retail level in the US and China, and expectations for reasonable demand to continue throughout the holiday season,” De Beers CEO Bruce Cleaver said in a media release.

“However, the resurgence of covid-19 infections in several consumer markets presents ongoing risks.”

The company has continued to implement a more flexible approach to sales during the year, as a result of restrictions triggered by the pandemic.

It has also cut prices of its stones, sometimes by almost 10% for larger diamonds, in an effort to spark sales.

On Tuesday, rival Petra Diamond Petra reported a 36% fall in revenue and a net loss of $223 million for the year ended June 30, as the pandemic deepened the company’s financial woes.

Source: DCLA