Pink Diamond – Page 17 – The Diamond Certification Laboratory of Australia (DCLA)

Star Diamond confirms Type IIa high value diamonds at Orion North, Taurus kimberlites

Star Diamond has completed a study into the abundance of Type IIa diamonds in parcels recovered from the Early Joli Fou geological units at the Orion North (K120, K147 and K148) and Taurus kimberlites (K118, K122 and K150).

The pipes are located within the Fort a la Corne diamond district of central Saskatchewan, including the Star–Orion South diamond project, on properties held in a joint venture with Rio Tinto Exploration Canada.

These diamond parcels were recovered by Star Diamond between 2006 and 2008 from 120-cm diameter drilling programs. The latest study confirms that unusually high proportions of Type IIa diamonds are present in both the Orion North and Taurus kimberlites.

Of particular note is the high proportion of Type IIa diamonds in the Orion North 147-148 EJF (52%), of which 66% of the 24 stones, 0.66 carats and above are Type IIa. The largest Type IIa diamond identified was a 6.88-carat stone from Orion North (K147-K148 EJF).

Senior technical advisor George Read said that the Type IIa diamonds at Orion North and Taurus are top white in colour, Type IIa diamonds are rare and account for less than 2% of all natural rough diamonds mined from kimberlites. Many high-value, top colour, large specials (greater than 10.8 carats) are Type IIa diamonds, which include all 10 of the largest known rough diamonds recovered worldwide.

The study also confirms and augments an earlier study of Type IIa diamonds being present in the Fort a la Corne kimberlites with Star (26.5%) and Orion South (12.5%).

A target for further exploration completed by Star Diamond in 2014 estimated that between 881 million and 1.04 billion tonnes of the major EJF units, containing between 46 and 79 million carats, occur within the Orion North and Taurus kimberlite clusters.

Orion North (K147, K148 and K220) alone is estimated to contain between 340 million and 410 million tonnes of EJF kimberlite with an estimated range of grade of 2.75 to 8.37 carats per hundred tonnes.

Source: mining.com

Petra to sell 32-ct Pink Diamond from Re-opened Mine

Petra is to offer a 32.32-carat pink diamond at its first tender of goods from the Williamson mine, in Tanzania following a Covid-enforced closure.

The stone is among 26,000 carats that will be offered in Antwerp from 19 to 26 November.
The London-based miner classified Williamson as “an asset held for sale for financial reporting purposes” after a a debt-for-equity restructuring.
The open-pit mine was mothballed in April 2020 to “preserve its liquidity, at a time when diamond pricing was impacted by the COVID-19 pandemic”. Operations resumed in Q1 FY 2022.

Source: IDEX

Rio Tinto dazzles in Antwerp with its finest Argyle pink, red and blue diamonds

*The Hero Diamonds from the 2021 Argyle Pink Diamonds Tender*

Rio Tinto’s final Argyle Pink Diamonds Tender collection of rare pink, red, blue and violet diamonds is being showcased to connoisseurs, collectors and luxury jewellers in Antwerp, Belgium.

The Argyle Pink Diamonds Tender, an annual invitation-only event for the past 38 years, is widely considered to be the most anticipated diamond sale in the world, showcasing the pinnacle of Argyle’s production to an exclusive group of collectors, diamond connoisseurs and luxury jewellery houses.

Mining ceased at Argyle on 3 November, 2020 and the 2021 Argyle Pink Diamonds Tender is the final collection of the rarest diamonds from the final year of Argyle operations.

Patrick Coppens, General manager, Sales and Marketing for Rio Tinto’s diamonds business said “The first Argyle Pink Diamonds Tender was held in Antwerp in 1984 and I am delighted to host the final epic collection in Antwerp. Over the past 38 years Argyle pink diamonds have pushed the boundaries of rarity and value appreciation to new extremes.

“When you consider the number of diamonds presented at the annual Argyle Pink Diamonds Tender since 1984 would barely fill two champagne flutes, you begin to grasp the rarity and the tremendous gravitas of this final collection. Many of the invitees have participated in the annual Argyle Pink Diamonds Tender for more than three decades and across generations, so it is an emotional moment in the history of Rio Tinto’s Argyle Pink Diamonds business and the natural fancy coloured diamond industry.”

Comprising 70 diamonds weighing 81.63 carats, the 2021 Argyle Pink Diamonds Tender has a record number of diamonds larger than one carat. The collection is headlined with Lot Number 1, Argyle Eclipse™, a 3.47 carat diamond that is the largest Fancy Intense Pink diamond ever offered at the Tender.

Titled The Journey Beyond, the 2021 Argyle Pink Diamonds Tender takes its reference from the 1.5 billion year journey from creation to discovery and their remarkable impact on the world diamond and jewellery history. The Tender collection comprises five ‘hero’ diamonds selected for their unique beauty and named to ensure there is a permanent record of their contribution to the history of the world’s most important diamonds:

Lot 1: Argyle Eclipse™, 3.47 carat, radiant shaped Fancy Intense Pink diamond

Lot 2 : Argyle Stella™ 1.79 carat, square radiant shaped Fancy Vivid Purplish Pink diamond

Lot 3: Argyle Lumiere™ 2.03 carat, square radiant shaped Fancy Deep Pink diamond

Lot 4: Argyle Solaris™ 2.05 carat, radiant shaped Fancy Intense Pink diamond

Lot 5: Argyle Bohème™ 1.01 carat, radiant shaped Fancy Red diamond

Also offered alongside the 2021 annual Argyle Pink Diamonds Tender are 41 lots of carefully curated Argyle blue diamonds, weighing 24.88 carats in total. Titled Once in a Blue Moon, these are the very last blue and violet diamonds to emerge from the Argyle mine.

Both face to face and virtual viewings are being conducted in Antwerp catering for those markets where COVID-19 restrictions prevent travel. Bids close on October 4, 2021.

Source: riotinto

Lucara’s 62-Carat Fancy Pink ‘Boitumelo’

*62.7-carat fancy pink diamond “Boitumelo” in Botswana*

Lucara keeps raking in the big diamond finds, this time recovering a 62.7-carat fancy pink diamond from its Karowe mine in Botswana.

It is the largest fancy pink gem to found in Botswana, according to the diamond miner, and one of the largest rough pink diamonds on record in the world.

The stone has been named “Boitumelo,” which means joys in Setswana.

Measuring 26 x 17 x 16 mm, it is described as a high-quality fancy pink Type IIa gem.

Lucara uncovered it from the direct ore milling at the EM/PK(S) unit of the South Lobe, the site of many of its biggest finds.

The company said a 22.21-carat fancy pink gem of similar quality was found during the same production period, as were two more pink gems of similar color weighing 11.17 carats and 5.05 carats.

Asked if those additional small pink diamonds could’ve broken off from the same piece as the 62.7-carat diamond, a company spokesperson said: “As the diamonds all came from a similar production period it may be possible, but we cannot confirm this at this time. Further detailed analysis needs to be carried out to confirm if they did indeed originally stem from one diamond.”

Regarding the find, CEO Eira Thomas said, “Lucara is delighted to announce another historic diamond with the recovery of the Boitumelo, and very pleased to demonstrate the continued potential for large, colored diamonds from the South Lobe production.

“These remarkable pink diamonds join a collection of significant diamond recoveries in 2021 produced from the EM/PK(S), which forms a key economic driver for the proposed underground mine at Karowe.”

Source: Brecken Branstrator nationaljeweler

The Pink Palesa Diamond Set for Sale in Antwerp

A 21.86 carat natural pink diamond named “The Pink Palesa” will be sold by the Bonas Group in Antwerp in July.

rough pink diamond — Credit: Namakwa Diamonds

The pink gem was discovered on May 18 at the Kao mine in Lesotho one of the few sources of pink diamonds in the world following the closure of the iconic Argyle mine last year. Argyle provided about 90% of the world’s pink gems. Kao is operated and owned by Namakwa through its subsidiary, Storm Mountain Diamonds.

According to the report, Kao has yielded several pink diamonds in the last few years: The 25.97 carat Pink Dawn (2021), the 36.06-carat Pink Storm sold in 2014, the 3.06 carat Purple Princess (2017) and the 29.59 carat Rose of Kao (2018).

Christie’s Sells Pink Diamond for Record $29M

The Sakura ring was the star at Christie’s Hong Kong, setting a world-record auction price for a purple-pink diamond.

The cushion-cut, 15.81-carat, fancy-vivid, internally flawless stone sold within its estimate for $29.3 million, or $1.9 million per carat, at the May 23 Magnificent Jewels auction, Christie’s said Sunday. The piece, purchased by a private Asian buyer, was also the most valuable jewel sold at auction so far this year. Overall, the Hong Kong sale raked in $76.8 million, the auction house’s highest total for a jewelry auction in four years.

“We are very excited to have marked another important chapter in jewelry-auction history today, with The Sakura realizing a record-breaking price,” said Vickie Sek, chairman of Christie’s Asia Pacific jewelry department. “The strong sell-through rates and exceptional prices achieved for top-quality colored diamonds and gemstones reflect a robust market demand.”

However, even with the record pricing, the pink diamond still fell short of its $38 million high estimate.

“I would not consider this to be at the lower end of the market price, but there was room for it to go [further] if the current economic stability and situation was better,” Harsh Maheshwari, executive director of colored-diamond dealer Kunming Diamonds, told Rapaport News. “Post-Covid-19, if a similar item were to be auctioned, it would possibly touch, or break, the higher end of the estimated price.”

Meanwhile, The Sweet Heart, a heart-shaped, 4.19-carat, fancy-vivid-pink diamond ring, brought in $6.6 million, or $1.6 million per carat, within its presale valuation.

Other notable items include a necklace with a 50.05-carat, D-flawless, type IIa briolette diamond pendant, which garnered $2.7 million. That price, which comes to $53,399 per carat, was just above its low estimate. A square emerald-cut, 31.17-carat, fancy-vivid-yellow, VS2-clarity diamond ring went for $2.2 million, smashing its high estimate, as did a Cartier necklace with diamonds and five Colombian emeralds weighing a total of 16.43 carats, which achieved $2.1 million.

Overall, Christie’s sold 82% of items on offer at the auction.

Source: Diamonds.net

Christie’s to Auction $12M Pink Diamond Ring

A fancy-intense-pink diamond ring with a high estimate of CHF 11 million ($12 million) is set to feature in the Magnificent Jewels sale at Christie’s Geneva.

The oval-shaped, 15.23-carat piece, surrounded by diamonds, will be offered alongside the 100.94-carat Alrosa Spectacle diamond at the May 12 auction, Christie’s said last week.

Other notable items include a heart-shaped, 53.33-carat, D-color, VVS1-clarity, type IIa diamond pendant with a high valuation of CHF 3 million ($3.3 million). A pear-shaped, 141.22-carat, fancy-brown-yellow diamond set in a diamond necklace is also on offer, carrying a high estimate of CHF 2.8 million ($3.1 million).

Meanwhile, a ring featuring a 47-carat, cushion-shaped old mine Colombian emerald surrounded by diamonds will go under the hammer. The jewel, which is from an important private collection, carries a high presale estimate of CHF 1.6 million ($1.7 million).

Christie’s will also sell a rectangular cut-cornered, 8.06-carat, fancy-purplish-pink, VVS2-clarity diamond ring bracketed by tapered baguette-cut diamonds. The piece, created by Boucheron, has a high valuation of CHF 1.5 million ($1.6 million).

Christie’s will preview the items from May 8. The sale will also feature an online component, which will be open for bidding between April 29 and May 10.

Source: Diamonds.net

Fancy Pink Diamond Fetches $3.5m at Christie’s Auction

A 2.17-carat fancy vivid purplish pink diamond fetched $3.5m at auction, well above its high estimate of $2.5m.

It was the most expensive of a “Perfect Palette” of three colored diamonds that raised a total of $8.4m last week at Christie’s New York April Magnificent Jewels.

The pink diamond (pictured) was a cut-cornered square modified brilliant-cut stone, natural color, SI1 clarity, set with round diamonds in a platinum and 18k yellow gold ring.

A fancy vivid blue cut-cornered rectangular modified brilliant-cut diamond of 2.13 carats, natural color, VS1 clarity, set in a platinum ring with round diamonds, sold for $2.67m (high estimate $3m).

And a fancy vivid orange cut-cornered rectangular modified brilliant-cut diamond of 2.34 carats, natural color, VS1 clarity, set in platinum and 18k yellow gold, sold for $2.19m (high estimate $2.5m).

The sale of over 200 lots – including signed pieces by Belperron, Bulgari, Cartier, Graff, Harry Winston, Hemmerle, JAR, Lacloche, Tiffany & Co., and Van Cleef & Arpels – brought in a total of $35m.

Christie’s said there were bids from 40 countries and 94 per cent of lots were sold.

Source: IDEX

Fancy Colour Diamond Trio Fetches $8M at Christie’s

The Perfect Palette diamonds. Christie’s

Three rings featuring diamonds with fancy-vivid color stole the show at the Christie’s Magnificent Jewels auction, selling for more than $8 million combined.

The trio of jewels, called the Perfect Palette, achieved a total of $8.4 million at the New York sale, Christie’s said Tuesday. A 2.17-carat, fancy-vivid-purplish-pink diamond ring brought in $3.5 million, beating its $2.5 million high estimate, while a 2.13-carat, fancy-vivid-blue diamond ring sold for $2.7 million, toward the upper end of its valuation. The third — a 2.34-carat, fancy-vivid-orange diamond ring — went for $2.2 million, just under its top estimate at the April 13 sale. The entire auction garnered $35 million, with 94% of items on offer finding buyers.

Another high earner was a pear brilliant-cut, 38.04-carat, D-flawless, type IIa diamond ring, which fetched $3 million. A Burmese ruby ring by F.J. Cooper, a prominent Philadelphia jeweler, went for $1.7 million. Both pieces fell within their presale estimates.

Other notable items included an oval modified brilliant-cut, 25.55-carat, fancy-vivid-yellow, VS1-clarity diamond ring, which sold for $1.7 million, smashing its $1.2 million high estimate. An emerald-cut, 14.50-carat, D-color, internally flawless, type IIa diamond ring also shattered its $1 million upper valuation, selling for $1.4 million at the auction.

A diamond and onyx Serpenti wristwatch, donated by Bulgari, fetched $50,000, within estimates. Proceeds from the timepiece will benefit the Elizabeth Taylor AIDS Foundation.

Participants at the sale originated from 40 countries across five continents, Christie’s noted. The auction house is still holding its Online Jewels sale, which began on April 8 and will run through April 20. It features a selection of items from Bulgari, Cartier and Elsa Peretti for Tiffany & Co., among others.

Source: Diamonds.net

Flawless largest purple-pink diamond expected to fetch over $25 mn at Hong Kong auction

15.81 carat fancy vivid purple pink diamond

A 15.81 carat Sakura diamond, the largest of its kind to ever appear for sale, will go under the hammer at Christie’s upcoming Hong Kong Magnificent Jewels Live Auction on May 23, the auction house announced on Tuesday. Estimated at $25 million to $38 million, the “fancy vivid purple pink internally flawless” diamond will be the star highlight of the sale.

It is the diamond’s exceptional rarity, extraordinary optical transparency, brilliant colour, and enormous size that make it an immensely important, and eternal masterpiece of nature.

As fewer than 10 per cent of pink diamonds weigh more than one-fifth of a carat, this fancy vivid purple-pink diamond is of an unprecedented size of 15.81 carats, which is the largest of its kind Fancy Vivid Purple Pink to be offered at any auction.

It added that the lot fell in the exclusive group of the four per cent of pink diamonds that possess a colour deep enough to qualify as “fancy vivid”.

This magnificent gem is graded ‘fancy vivid’ for its perfect display of strong saturation and remarkable pink hue with a secondary colour of purple, resembling the fascinating colour of cherry blossoms – appropriately coinciding with spring.

Source: indiatimes