73ct. Yellow to Shine at Sotheby’s New York Sale

                            73.11 carat yellow diamond

Sotheby’s will offer a fancy-vivid-yellow diamond ring at its New York sale next month, estimating the piece could fetch up to $3 million.

The cut-cornered square step-cut, 73.11-carat, VS2-clarity jewel by Mayfair designer Glenn Spiro, called The Sienna Star, is one of the largest fancy-vivid-yellow diamonds to come to auction, Sotheby’s said Wednesday. The piece is one of the top items at the June 9 Magnificent Jewels sale. The auction will feature jewelry for the “Roaring Twenties 2.0” as people return to the social scene following long lockdowns, Sotheby’s noted.

A private collection of six jewels with a combined estimate of more than $13 million are another headline lot at the New York sale. Those include a necklace by Andrew Clunn, set with 28 oval-shaped diamonds totaling over 168 carats, which carries a high estimate of $3 million, and an emerald-cut, 23.59-carat, D-color, internally flawless, type IIa diamond ring with an upper valuation of $2.8 million.

A Colombian emerald and diamond garland necklace by Harry Winston, estimated at up to $2.5 million, and a 13.02-carat Burmese ruby ring, mounted by Carvin French, with a $2 million high valuation, are also part of the collection. Proceeds from the sale of those six items will be donated to charity.

Additionally, Sotheby’s will showcase a Bulgari ring with a 25.29-carat Kashmir sapphire flanked by diamonds, which it expects will bring in up to $3 million. Meanwhile, a modified square brilliant-cut, 3.75-carat, fancy-intense-pink, VVS1-clarity diamond ring, accented by triangle-shaped and round diamonds, is estimated to fetch up to $2.5 million.

The auction house will present jewels from the collection of philanthropist Margaret Jonsson Rogers, the daughter of Texas Instruments founder and Dallas mayor J. Erik Jonsson, as well as property from the estate of Mary Ethel Weinmann, the daughter of Count and Countess André de Limur, it added.

Source: DCLA

73ct. Yellow to Shine at Sotheby’s New York Sale

                            73.11 carat yellow diamond

Sotheby’s will offer a fancy-vivid-yellow diamond ring at its New York sale next month, estimating the piece could fetch up to $3 million.

The cut-cornered square step-cut, 73.11-carat, VS2-clarity jewel by Mayfair designer Glenn Spiro, called The Sienna Star, is one of the largest fancy-vivid-yellow diamonds to come to auction, Sotheby’s said Wednesday. The piece is one of the top items at the June 9 Magnificent Jewels sale. The auction will feature jewelry for the “Roaring Twenties 2.0” as people return to the social scene following long lockdowns, Sotheby’s noted.

A private collection of six jewels with a combined estimate of more than $13 million are another headline lot at the New York sale. Those include a necklace by Andrew Clunn, set with 28 oval-shaped diamonds totaling over 168 carats, which carries a high estimate of $3 million, and an emerald-cut, 23.59-carat, D-color, internally flawless, type IIa diamond ring with an upper valuation of $2.8 million.

A Colombian emerald and diamond garland necklace by Harry Winston, estimated at up to $2.5 million, and a 13.02-carat Burmese ruby ring, mounted by Carvin French, with a $2 million high valuation, are also part of the collection. Proceeds from the sale of those six items will be donated to charity.

Additionally, Sotheby’s will showcase a Bulgari ring with a 25.29-carat Kashmir sapphire flanked by diamonds, which it expects will bring in up to $3 million. Meanwhile, a modified square brilliant-cut, 3.75-carat, fancy-intense-pink, VVS1-clarity diamond ring, accented by triangle-shaped and round diamonds, is estimated to fetch up to $2.5 million.

The auction house will present jewels from the collection of philanthropist Margaret Jonsson Rogers, the daughter of Texas Instruments founder and Dallas mayor J. Erik Jonsson, as well as property from the estate of Mary Ethel Weinmann, the daughter of Count and Countess André de Limur, it added.

Source: DCLA

Sarine Partners with Cutting Firm on Lab-Grown

                  The Sarine Loupe technology

Sarine Technologies has entered into a collaboration with diamond-industry consultancy Constell Group that will focus on improving efficiency for the lab-grown supply chain.

“The application of Sarine’s advanced technological solutions to many of the currently manual processes will increase the realized value significantly, and we are fully committed to bringing this evolution to the burgeoning lab-grown diamond market,” Meir Boukris, Constell’s executive chairman, said Tuesday.

Constell offers services such as sorting of rough stones and polishing, concentrating on aiding the transformation of raw materials into finished stones in the most cost-effective way, it said. The group, founded in India, employs more than 4,000 people worldwide.

Sarine, an Israel-based supplier of diamond-manufacturing and grading equipment, will receive remuneration based on each stone processed, regardless of the specific technologies the company uses.

Source: Diamonds.net

Sarine Partners with Cutting Firm on Lab-Grown

                  The Sarine Loupe technology

Sarine Technologies has entered into a collaboration with diamond-industry consultancy Constell Group that will focus on improving efficiency for the lab-grown supply chain.

“The application of Sarine’s advanced technological solutions to many of the currently manual processes will increase the realized value significantly, and we are fully committed to bringing this evolution to the burgeoning lab-grown diamond market,” Meir Boukris, Constell’s executive chairman, said Tuesday.

Constell offers services such as sorting of rough stones and polishing, concentrating on aiding the transformation of raw materials into finished stones in the most cost-effective way, it said. The group, founded in India, employs more than 4,000 people worldwide.

Sarine, an Israel-based supplier of diamond-manufacturing and grading equipment, will receive remuneration based on each stone processed, regardless of the specific technologies the company uses.

Source: Diamonds.net

Lucapa acquires Merlin diamond project in Australia

  Merlin diamond mine in Australia’s Northern Territory.

Lucapa Diamond announced that it has entered into a binding asset sale agreement for the acquisition of a 24km2 mining lease and a 283km2 exploration tenement encompassing the mining lease and associated equipment and assets the Merlin Assets from Merlin Operations Pty.

Merlin Operations is a wholly-owned subsidiary of Merlin Diamonds Limited, which is in liquidation. The Merlin Tenements are located in the Northern Territory of Australia, approximately 720km southeast of Darwin.

Merlin is home to Australia’s largest mined rough diamond on record and has the potential to be the
only producing diamond mine in Australia, following the closure of Rio Tinto’s iconic Argyle mine in 2020, after 37 years in production.

The strategic acquisition is supported by a A$20 million ($15.5m) private placement plus a share purchase plan to raise up to A$3 million ($2.3m).

The acquisition price of A$8.5m cash represents a ~A$2/ carat multiple on Merlin’s existing 4.4m
carat JORC compliant resource and complements Lucapa’s existing portfolio, the company said, adding a near-term development opportunity with an existing 4.4m carat mineral resource estimate in Australia to Lucapa’s two existing producing assets in Angola and Lesotho.

The ~300km2 tenement package also comes with significant exploration upside, Lucapa said, through over 70 unresolved anomalies in areas where all kimberlite discoveries have been diamondiferous.

Source: DCLA

Lucapa acquires Merlin diamond project in Australia

  Merlin diamond mine in Australia’s Northern Territory.

Lucapa Diamond announced that it has entered into a binding asset sale agreement for the acquisition of a 24km2 mining lease and a 283km2 exploration tenement encompassing the mining lease and associated equipment and assets the Merlin Assets from Merlin Operations Pty.

Merlin Operations is a wholly-owned subsidiary of Merlin Diamonds Limited, which is in liquidation. The Merlin Tenements are located in the Northern Territory of Australia, approximately 720km southeast of Darwin.

Merlin is home to Australia’s largest mined rough diamond on record and has the potential to be the
only producing diamond mine in Australia, following the closure of Rio Tinto’s iconic Argyle mine in 2020, after 37 years in production.

The strategic acquisition is supported by a A$20 million ($15.5m) private placement plus a share purchase plan to raise up to A$3 million ($2.3m).

The acquisition price of A$8.5m cash represents a ~A$2/ carat multiple on Merlin’s existing 4.4m
carat JORC compliant resource and complements Lucapa’s existing portfolio, the company said, adding a near-term development opportunity with an existing 4.4m carat mineral resource estimate in Australia to Lucapa’s two existing producing assets in Angola and Lesotho.

The ~300km2 tenement package also comes with significant exploration upside, Lucapa said, through over 70 unresolved anomalies in areas where all kimberlite discoveries have been diamondiferous.

Source: DCLA

Christie’s Sells Pink Diamond for Record $29M

 

                     The Sakura diamond ring. 

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: DCLA