685 posts categorized "Diamond Industry News"

Behold the World’s Largest Blue Star Sapphire | JCK

Behold the World’s Largest Blue Star Sapphire

A Sri Lankan gem trader is selling the world’s largest blue star sapphire.

Worlds Largest Blue Star SapphireThe egg-shape stone weighs 1,404.49 cts. and has been authenticated as the largest of its kind by the Gemological Institute of Colombo (GIC).

“We can’t put a price on something like this,” Ashan Amarasinghe, a gemologist at the GIC told Agence France-Presse. “It is so rare, and unlike other, smaller sapphires, this is not a stone that can be replaced. This is something only collectors or museums can afford.”

The BBC reports that the seller expects the stone to sell for $175 million at auction; Agence France-Presse puts the price at $300 million. 

The stone was found in Sri Lanka’s central region of Ratnapura, according to reports.

“I have lived in affluence, but now I feel even more blessed,” said the owner, who asked to remain anonymous due to the value of the stone. “This [find] has not changed my lifestyle. But, I feel thrilled to be the man owning this gem. It is good for the ego.” He purchased the stone in September 2015 for an undisclosed sum.

The BBC reports that the owner has named the stone the Star of Adam, after the Muslim belief that Adam arrived in Sri Lanka after being sent away from the Garden of Eden.

Details of the auction have not yet been announced.

via www.jckonline.com

The 2016 JCK Jewelers’ Choice Awards: The Winners | JCK

The 2016 JCK Jewelers’ Choice Awards: The Winners


De Beers Millennium Jewel Sells for $32 Million | JCK

De Beers Millennium Jewel Sells for $32 Million

The 10.1 ct. internally flawless fancy vivid blue was nearly stolen in a famed failed heist

via www.jckonline.com

Forget the Silver Spoon, This Is a $400,000 Platinum and Diamond Pacifier | JCK

Forget the Silver Spoon, This Is a $400,000 Platinum and Diamond Pacifier

The piece was created by diamond dealer Eyal Cohen to promote his natural color diamond gifts

via www.jckonline.com

Gabriela Princess zu Leiningen Jewelry Auction Geneva Christies - Bloomberg

On May 18, Gabriela Princess zu Leiningen, the former wife of the Aga Khan, will auction of 46 lots of jewelry estimated to bring more than $15 million at Christie's Geneva.

The princess (born merely wealthy, she was first married to the Prince of Leiningen before marrying the Aga Kahn in 1998), received many of the jewels as gifts from her second husband, Christie's says.

When Rahul Kudia, Christie's head of jewelry, visited the princess, he first made his way below ground to the vault. "Awaiting us there was an impressive two-story safe from the turn of the century," inside of which, he wrote in a statement, "we glimpsed towers of neatly stacked boxes."

Most of the pieces come from notable jewelers. There are objects from Van Cleef & Arpels, Cartier, Schlumberger, and Tiffany's, and the majority include some form of prestigious history. Merely coming from the princess's own collection isn't a bad provenance, either. Here are the top 10 lots.

The 'Pohl' Diamond by Cartier

Pohl diamond
The "Pohl" diamond by Cartier.
Source: Christie's

This massive, 36.09-carat diamond is mounted on platinum and tapered by baguette-cut diamond shoulders. Estimate: $3.8 million to $5.5 million


An Emerald and Diamond Necklace by Cartier

  Emerald and Diamond Necklace by Cartier

An emerald and diamond necklace by Cartier.
Source: Christie's

The necklace features a detachable, cushion-shaped emerald pendant weighing approximately 39.7 carats; there are five more emeralds in the necklace weighing more than 16 carats in total. Estimate: $2.5 million to $3.5 million

'Persepolis' Necklace and Pair of 'Persane' Earrings by Cartier

  Persepolis Necklace
A "Persepolis" necklace and pair of "Persane" earrings by Cartier.
Source: Christie's

The necklace, set with emeralds, sapphires, and rose-cut diamonds, is paired with a pair of emerald, diamond, and pearl earrings. The necklace was a gift from the princess's mother, Renate Thyssen. Estimate: $700,000 to $1 million

Pair of Sapphire and Diamond Earrings by Cartier

  Sapphire and Diamond Earrings by Cartier
A pair of sapphire and diamond earrings by Cartier.
Source: Christie's

The two sapphires, weighing 24.69 and 25.63 carats are detachable; the diamonds are set in platinum. Estimate: $600,000 to $800,000

Sapphire and Diamond Ring by Cartier

  Sapphire and Diamond Ring by Cartier
Sapphire and diamond ring by Cartier.
Source: Christie's

The sapphire weighs a massive 21.06 carats and is set in platinum between baguette-cut diamond shoulders. Estimate: $600,000 to $800,000

Suite of Emerald, Diamond, and Pearl Jewelry by Cartier

  Emerald Diamond Pearl Necklace
A suite of emerald, diamond, and pearl jewelry by Cartier.
Source: Christie's

The necklace is a fringe of emerald beads interspersed with diamonds and pearls, suspended on a larger emerald and diamond pendant. The necklace is matched with a similarly-set pendant clasp, bracelet, and pair of ear pendants. Estimate: $500,000 to $700,000

Cultured Pearl and Diamond Fringe Necklace and a Bangle and Pair of Earrings by Van Cleef & Arpels

  Pearl and Diamond Fringe Necklace
Cultured pearl and diamond fringe necklace by Van Cleef & Arpels.
Source: Christie's

The necklace, whose yellow-gold flowers contain small diamond clusters, has 15 cultured pearls and multiple white gold clusters. The necklace comes with a similarly set bangle and pair of ear pendants. Estimate: $200,000 to $300,000

Ruby and Diamond Brooch by Van Cleef & Arpels

  Ruby and Diamond Brooch
A "Mystery Set" ruby and diamond flower brooch by Van Cleef & Arpels.
Source: Christie's

This flower brooch comprises rubies and a diamond-cluster pistil and is mounted in platinum and gold. Estimate: $150,000 to $250,000

'Mystery Set' Ruby and Diamond 'Poppy' Earrings by Van Cleef & Arpels

  Mystery Set Ruby and Diamond Earrings
"Mystery Set" Ruby and Diamond "Poppy" Earrings by Van Cleef & Arpels.
Source: Christie's

Each ruby-set poppy flower has a circular-cut diamond pistil and two diamond-set leaves set in platinum. Estimate: $100,000 to $150,000


Ruby and Diamond Novelty Brooch by Cartier

  Ruby and Diamond Novelty Brooch
Ruby and diamond novelty brooch by Cartier.
Source: Chrisitie's

This "novelty" brooch, so-called because one side opens to reveal a watch with a circular dial, was once owned by Begum Sultan Mohamed Shah Aga Khan III (the princess's ex-husband's grandfather.) Estimate: $10,500 to $15,000 

Bez Ambar Bouquet of Lights with Blaze Cut Diamonds for a Heart Shape Center

One of our favorite designers, Bez Ambar, has introduced another beautiful mounting style using their patented Blaze Cut diamonds.  Named the Bouquet of Lights, the ring pictured shows a heart shaped center diamond with a ring of Blaze Cut diamonds on the underbezel and a three-row split-shank with bright bead set diamonds.

See more Bez Ambar designer ring styles...

Bez Ambar Dahlia Ring with Blaze Cut Diamonds

Bez-Ambar-daliah-ringOne of our favorite designers, Bez Ambar, has introduced another beautiful mounting style using their patented Blaze Cut diamonds.  Named the Dahila Ring, this style has two rows of Blaze Cut diamonds around the center round diamond and triple row pave on the shank and on the beautiful underbezel.

See more Bez Ambar designer ring styles...

The Second-Largest Diamond Ever Found: 1,111 Carat Diamond

1111-carat-diamondA 1,111 ct. diamond—described as slightly smaller than a tennis ball—was discovered this week at the Karowe mine in Botswana.

The type IIa stone, pictured at right, measures 65 mm by 56 mm by 40 mm  and is considered the second- largest diamond ever found, behind the 3,106 ct. Cullinan, discovered in 1905. It is also the largest diamond ever found in Botswana.

The remarkable find overshadowed another amazing discovery this week by Lucara: An 813 ct. stone, discovered at the same mine. That is considered the sixth-largest piece of rough ever found.

Lucara president and CEO William Lamb tells JCK that the 1,111 ct. stone will likely have top color. But he did not wish to speculate whether it could produce a group of stones, like the Cullinan did.

“I have not seen the stone, so I do not know what the internal features look like,” he says.

He declined to speculate on a potential price for the stone, which will likely be tendered during the first half of 2016. He did say that it will not be affected by the diamond market’s current woes.

“The price reduction people are seeing is for smaller, lower-quality goods,” he says. “The demand for these large, high-quality stones is still very strong. This is a special stone. I do not think current markets will affect the valuation.”

In a statement, Lamb described himself as “truly at a loss for words” at these twin finds.

via www.jckonline.com

Three Of The World's Costliest Diamonds Now Belong to Josephine

Josephine diamondsHong Kong billionaire Joseph Lau has spent Rs 317 crores ($69 million) for a rare 12.03 carat liquid blue diamond. He has gifted the blue stone to his seven-year-old daughter Josephine.

The diamond was also renamed 'Blue Moon Of Josephine'. This comes just a day after the tycoon, affectionately known as Big Liu, spent a whopping $40.4 million (Nearly Rs 268 crores) over a 16.08 carat pink diamond for his daughter that he also renamed 'Sweet Josephine'.

Six years back, he bought then 1-year-old Josephine her first major diamond; a 7.03-carat blue diamond for US$9.48 million (Nearly Rs 63 crores). This diamond was renamed by him as the 'Star of Josephine'.

While you marvel at the luck that follows the young josephine, let us tell you that she is not the only lucky daughter of Joseph. Her elder half-sister, 14-year-old Zoe also got two amazing gifts last year. She was gifted with a 9.75-carat 'Zoe Diamond'(US$32.6 million), and a 'Zoe Red' ruby (S$11.9 million).

Big Liu surely knows his way into his daughters' hearts and he knows the one universal truth that"Diamonds are a girl's best friend".

via www.indiatimes.com

Sotheby’s to sell 12-carat blue diamond

12.03 Cushion Vivid Blue Moon-bigThis fall, the largest cushion-shaped fancy vivid blue diamond ever to appear at auction will go up on the block at Sotheby’s, with a chance of setting a new auction record.

The 12.03-carat diamond, named the “Blue Moon” because of its rarity, will lead Sotheby’s Magnificent Jewels and Noble Jewels sale scheduled to take place Nov. 11 in Geneva. 

The cushion-shaped, brilliant-cut stone boasts an exceptional clarity, declared internally flawless by the Gemological Institute of America.

It comes to market with an estimate of between $35 million and $55 million. If it sells at the high end of that range, the stone could become the most expensive diamond in auction history.

The current record is held by the Graff Pink, a 24.78-carat fancy intense that went for $46.2 million at Sotheby’s Geneva in November 2010.  (Sotheby’s actually topped the Graff Pink sale in November 2013 when it sold the 59.6-carat “Pink Star” for $83.2 million, but the record didn’t hold as the buyer couldn’t pay for it, requiring Sotheby’s to acquire the stone itself.)

Scientists from the National Gem and Mineral Collection at the Smithsonian Institution were able to study the Blue Moon diamond, noting that the color of the blue diamond is “true and saturated” throughout, with no other colors present.

The polished stone was cut from a 29.62-carat piece of rough unearthed at Petra Diamonds’ Cullinan mine in South Africa in January. A month later, Cora International NY purchased it for $25.6 million, or $862,780 per carat.

RELATED CONTENT: Nearly 30-carat blue diamond found in S. Africa

Sotheby’s also currently holds the world auction record for a blue diamond. This was set by the Zoe diamond, a 9.75-carat fancy vivid blue diamond that sold for $32.6 million in November 2014 during its sale of the late “Bunny” Mellon’s jewelry.

“Weighing in at 12.03 carats, the Blue Moon diamond is a simply sensational stone of perfect color and purity, combined with a superb cushion shape,” said David Bennett, worldwide chairman of Sotheby’s International Jewellery Division. “Blue, for me, is the most mysterious and magical of all the colors of diamond, and the Blue Moon will now take its place among the most famous gems in the world.”

via www.nationaljeweler.com