Rough Diamond – Page 5 – The Diamond Certification Laboratory of Australia (DCLA)

Rio Tinto launches ‘Colour Awakened’ historic collection from Argyle diamond mine

Rio Tinto launched on Wednesday its 2024 Beyond Rare tender, the second in its Art Series, showcasing 48 lots of extraordinarily rare stones from its diamonds business.

Titled Colour Awakened, this collection is headlined by seven “Old Masters”, notable historic diamonds from the Argyle diamond mine in Western Australia that operated from 1983 to 2020.

The Old Masters comprise seven round brilliant cut, pink and red diamonds, ranging in size from 0.60 carat to 2.63 carats. All unearthed from the mine over a decade ago in one case, as far back as 1987 each diamond has been carefully retrieved from private vaults and handpicked for inclusion in this year’s tender.

“No other mining company in the world has custody of such a kaleidoscope of coloured diamonds,” Sinead Kaufman, chief executive of Rio Tinto Minerals said in the statement.

In addition to the Old Masters, the Art Series 02 includes legacy inventory of pink, red and violet diamonds from the Argyle diamond mine, together with white and yellow diamonds from Rio Tinto’s Diavik diamond mine in Canada’s Northwest Territories.

“Four years on from the closure of the Argyle mine, our Beyond Rare Tender platform is a testimony to the enduring prestige of the Argyle Pink Diamonds brand, the quality of production from our Diavik mine, and the ongoing demand for highly collectible natural diamonds,” Kaufman said.

In total there are 76 diamonds, weighing 39.44 carats, comprising seven Old Masters, including one Fancy Red diamond; 32 single lots of pink and violet diamonds, including one Fancy Purplish Red diamond; and a rarified offering of nine carefully curated diamond sets, two of which include a 2.47 carat Fancy Intense Yellow diamond and a 4.04 carat D colour diamond, respectively, each from Diavik.

The 48 lots will be showcased in London, Australia, Singapore and Belgium, with bids closing on November 18.

Source: mining.com

4ct. Pink Diamond Takes Spotlight at Sotheby’s

A fancy-pink diamond pendant is set to headline an upcoming jewelry auction at Sotheby’s in Paris, where it is expected to fetch up to EUR 550,000 ($612,797).

The cushion-cut, 4.03-carat diamond piece will feature at the October 10 Fine Jewels sale, according to the Sotheby’s website. The auction will also offer jewels from Cartier, Van Cleef & Arpels, and Giovanni Ferraris.  

Additionally, the event will showcase more than 80 pieces from the collection of British singer Dame Shirley Bassey, including diamond jewelry Elton John gifted her.  

Here are the rest of top 10 jewels that will be auctioned:  

This Cartier Tutti Frutti bracelet designed as a band of articulated branches —embellished with carved emeralds, rubies and emerald beads drill-set with single-cut diamonds — carries a top estimate of EUR 450,000 ($501,395).

A necklace from the Shirley Bassey collection composed of a row of graduated brilliant-cut diamonds, with the main ones weighing 5.50, 5.36, and 4.61 carats, could sell for up to EUR 280,000 ($311,798).

gold and diamond Cartier set comprising a necklace, two bracelets, a pair of ear clips, and a ring image — Sotheby’s will offer this gold and diamond Cartier set comprising a necklace, two bracelets, a pair of ear clips, and a ring, each paved with brilliant-cut diamonds, for a high price of EUR 260,000 ($289,687).

gold and diamond Cartier set comprising a necklace, two bracelets, a pair of ear clips, and a ring — A David Morris ring bearing a rectangular step-cut, 7.15-carat diamond of F color and internally flawless clarity, flanked by tapered baguette diamonds, is expected to bring in EUR 140,000 to EUR 250,000 ($155,990 to $278,554).

This sapphire and diamond bracelet by Van Cleef & Arpels forms a stylized buckle set with a row of oval sapphires framed by brilliant-cut diamonds. It has a presale range of EUR 140,000 to EUR 240,000 ($155,990 to $267,410).

ring with a pear-shaped, fancy-brownish-yellow diamond image — **This ring with a pear-shaped, fancy-brownish-yellow diamond weighing 20.03 carats could achieve as much as EUR 220,000 ($245,116).**

**A necklace composed of openwork and oval motifs, each set with an oval sapphire within a double surrounding of brilliant-cut diamonds, has an upper price of EUR 180,000 ($200,540).**

diamond ring with marquise-shaped diamond shoulders image — **A 21.17-carat, fancy-light-brown-yellow, SI2-clarity diamond ring with marquise-shaped diamond shoulders is anticipated to realize up to EUR 170,000 ($189,415).**

**This claw-set ring with a rectangular step-cut, 5.06-carat diamond flanked by triangular diamonds carries a high estimate of EUR 150,000 ($155,990).**

Lightbox Launches New Campaigns – Despite Ending Production

The wholly-owned De Beers-owned subsidiary says it has enough existing lab grown diamonds inventory to keep it going for the time being.

Lightbox has just launched new campaigns for its lab grown diamonds – despite its announcement in June that it was halting production.

The wholly-owned De Beers-owned subsidiary says it has enough existing inventory to keep it going for the time being.

The production facility in Portland, Oregon, USA, is now being used to manufacture industrial diamonds by Element Six, also owned by De Beers.

“Lightbox has sufficient existing inventory from Element Six to meet the brand’s needs for the foreseeable future,” a company spokesperson told IDEX Online.

“At JCK (in June), we communicated that Element Six (our synthetic diamond industrial business which had also been producing LGDs for Lightbox) would suspend production of LGDs for jewellery to focus on high-tech industrial applications.

“However, Lightbox as a brand is continuing as it plays an important role in supporting the differentiation between LGDs and natural diamonds as LGD prices continue to decline and they are increasingly used in fashion jewellery.

“The latest Lightbox campaigns, referenced in the email below, reinforce this as they focus on foregrounding the message of Lightbox’s recently lowered per carat pricing and its fashion-forward approach to product design.

Lightbox says its new Fall campaigns – Shine Bright Spend Less and Modern Family – reflect the brand’s focus on fashion jewelry and accessible pricing.

Melissa Crivillaro, Lightbox’s chief marketing officer, said: “Our accessible prices, our fun and colorful innovations, and our fashion-focused lab-grown diamond jewelry collections underpin Lightbox’s broad appeal.

“As we lean into our next chapter with a revived identity, new creative campaigns and bold price messaging, we look to connect more deeply with our customers.”

Source: Idex

Yellow Gold Is Hot, Diamonds Are Not At Hong Kong Jewelry Trade Show

The pulse of the jewelry industry and its relationship with the constantly changing world is reflected each year at Jewellery & Gem World Hong Kong (JGWHK).

This year the annual jewelry trade show attracted more than 3,300 exhibitors, a 5% decline from 2023, according to Informa Markets, which owns and operates the fair. Although final buyer numbers aren’t available, walking the floors on the first four days, it’s easy to see that foot traffic was down as well. Still the show is expected to attract about 50,000 visitors.

Buyers in the Fine Design Pavilion of Jewellery & Gem World Hong Kong 3,300 exhibitors — *Buyers in the Fine Design Pavilion of Jewellery & Gem World Hong Kong*

More important than the numbers themselves is what they represent. A major typhoon in the Shanghai area a few days before the show began meant many exhibitors and buyers from the area could not immediately make the trip to Hong Kong. Obviously, war in Ukraine and in Gaza has kept people in these regions from attending. After years of exponential growth, the U.S. jewelry market has softened, partly due to the upcoming presidential election. The China market has softened as well, reflecting the country’s overall economic challenges. These are the two largest markets in the world for jewelry. Then for the first time in memory, the fair coincided with the Mid-Autumn Festival on September 18, which further reduced overall attendance, at least temporarily.

For a fair that has been held during trade wars, citywide political protests and a once-in-a-century typhoon, these distractions were mild by comparison. Through it all JGWHK remains, by far, the largest jewelry trade fair in the world, and for good reason.

Read full article: forbes.com

Petra Sales Up, Prices Down

Petra Diamonds reported increased sales for FY 2024, despite weak market conditions.

The UK based miner said it had saved $75m by deferring capital expansion programs and sustainably reducing its cost base.

Revenue for the year was $367m, an increase of 13 per cent on FY 2023, according to its Audited Full Year 2024 Results, published on Tuesday (24 September).

“Petra demonstrated its agility in responding to a weaker pricing environment by building greater business resilience,” said CEO Richard Duffy.

“We acknowledge the difficult market conditions through FY 2024 and believe that prices will stabilise through to the end of CY 2024 with some improvement expected in CY 2025.”

Petra sold 3.2m carats of rough during the year an increase of 36 per cent but achieved lower average prices per carat, down 17 per cent to $116, attributable to a 12.4 per cent decline in like for like prices, as well as product mix movements.

Last month Petra today Petra canceled its August/September tender to restrict supply amid ongoing weak demand.

Goods from its Cullinan and Finsch mines, in South Africa, will be sold instead at its next tender, which is expected to close in mid-October.

Source: IDEX

India’s Polished Exports Fall Again in August

India’s exports of polished diamonds fell by 23.8 per cent year-on-year in August, according to the latest figures from the GJEPC (Gem and Jewellery Export Promotion Council).

Total foreign sales were $1.04bn, compared to $1.36bn last August. Exports in July were $908m, down 22.7 per cent.

Polished diamond exports have fallen every month this year, down 20 per cent in January, 28 per cent in February, 27 per cent in March, 17 per cent in April, 15 per cent in May and 26 per cent in June. All figures are for US dollars.

Gross exports of all gems and jewelry fell by 18.8 per cent during August – a slower rate of decline than diamonds – to $2.01bn.

Rough imports for the April to August period were down 22.6 per cent to $4.98bn.

Source: Idex

Rio Tinto offers early termination to Diavik employees to save costs

Rio Tinto is offering early termination for employees at its Diavik diamond mine as part of the company’s efforts to save costs ahead of the mine’s closure in 2026, the Australian miner told jewelry news agency Rapaport.

Located in Canada’s Northwest Territories, about 200 km south of the Arctic Circle, Diavik has become an integral part of the NWT economy, employing over 1,000 people and producing an average of 6-7 million carats of gem-quality diamonds annually.

Since entering production in 2003, the mine has outputted roughly 90 million carats of rough diamonds, making it one of the largest in Canada.

The offer of early termination to Diavik employees, says Rio Tinto, is a response to the challenges currently facing the diamond industry as the mine approaches the end of its life cycle.

“I can confirm that Diavik is looking at voluntary separation as part of our efforts to manage costs and rightsize our business given the relatively short runway to Diavik’s planned closure,” Matthew Breen, chief operating officer at Diavik, told Rapaport.

While the diamond mine is slated to close in the first quarter of 2026, Rio previously indicated that some workers will remain at the mine site until 2029 to support the closure and reclamation process.

Elsewhere in NWT, De Beers’ Gahcho Kué mine, about 280 km away from Yellowknife, is expected to follow Diavik and close around 2030.

A report earlier this year shared by research firm Impact Economics estimates that these NWT diamond mine closures could result in 1,500 jobs being lost and about 1,100 residents leaving the territory.

Source: mining.com

Gem Diamonds’ Letšeng mine yields 212 carat stone

Africa focused miner Gem Diamonds has found yet another big precious stone at its prolific Letšeng mine in Lesotho, the third greater than 100 carat diamond mined in September.

The 212.91 carat Type II white diamond was recovered on September 19th, the company said on Monday. It is the thirteenth diamond over 100-carat unearthed this year at the operation, it noted.

Type IIa diamonds are the most valued and collectable precious gemstones, as they contain either very little or no nitrogen atoms in their crystal structure.

The Letšeng mine, owned 70% by Gem Diamonds, is one of the world’s ten largest diamond operations by revenue. At 3,100 metres (10,000 feet) above sea level, it is also one of the world’s most elevated diamond mines.

The operation has a track record of producing large, exceptional white diamonds, which makes it the highest-dollar-per-carat kimberlite diamond mine in the world.

Source: mining.com

September, 2024September, 2024

Gem Diamonds’ Letšeng mine yields 212 carat stone

Africa focused miner Gem Diamonds has found yet another big precious stone at its prolific Letšeng mine in Lesotho, the third greater than 100 carat diamond mined in September.

The 212.91 carat Type II white diamond was recovered on September 19th, the company said on Monday. It is the thirteenth diamond over 100-carat unearthed this year at the operation, it noted.

Type IIa diamonds are the most valued and collectable precious gemstones, as they contain either very little or no nitrogen atoms in their crystal structure.

The operation has a track record of producing large, exceptional white diamonds, which makes it the highest-dollar-per-carat kimberlite diamond mine in the world.

Source: mining.com

“Most Coveted” A 16.9 ct Fancy Vivid Yellow Diamond

A flawless 16.92 carat vivid yellow diamond was unveiled last week at Jewellery & Gem World Hong Kong.

Mumbai based Venus Jewel says the radiant shaped natural diamond is one of the “most coveted diamonds” it has released in its 55 year history.

It was cut from a 28.78 carat rough stone. Natural vivid yellow colored diamonds are extremely rare. One out of approximately 10,000 carats mined is a natural fancy color diamond. Of those only a small percentage are fancy vivid, the highest grading for color saturation and brilliance.

“We are delighted to present the Yellow Lava, a true testament to our craftsmanship, energy and dynamism,” said Rajesh Shah, a partner in the company.

“The name Yellow Lava is derived from its evenly distributed vivid yellow color and flawless clarity.”

Source: Idex