Costume Jewelry Ring Turns Out to be a 26.27 Carat Diamond

"Even if it was just a small 1-carat diamond it would be amazing, but the fact that it's 26 carats, that's larger than most would see in their lifetime let alone own dream of owning. To have one this big and truly pure is astounding,"  -Jessica Wyndham, head of Sotheby's London jewelry department; photo courtesy of Sotheby's Auction House

One lucky lady bought more than a fun cocktail ring for about 10 pounds (about $15) 30 years ago. This piece of "costume jewelry" turned out to be a 26.27 carat white diamond. The owner has been wearing the ring since the '80s and only recently found out from a local jeweler it could be of significant value. On Monday she met with with Jessica Wyndham, head of Sotheby's London jewelry department. 

"She first bought it in the 1980s as a costume jewel, cocktail ring and she has been wearing it around ever since," Wyndham said. "It's impossible to really date it, but the style of the diamond has notable characteristics similar to what you would expect from the 19th century," she explained. 

"She randomly took it to a local jeweler who said, 'This could be a diamond,' and told her to 'seriously get it looked at,'" Wyndham added. The ring's owner was searching impressive diamonds on Google when she found Sotheby's and reached out to Wyndham to get the process started. Once Wyndham was able to see the stone in person she decided to contact the Gemological Institute of America to have the gem identified officially. "They check the diamond and give a certificate confirming the color, clarity, size and weight," Wyndham said of the New York City-based company. The stone came back as a cushion-shaped diamond weighing 26.27 carats with an attractive color grade of I and impressive clarity grade of VVS2.

Sotheby's will start the low auction price at about $325,000 but Wyndham said the diamond could reach $454,000. The unique 26.27-carat white diamond will be part of a sale on June 7, 2017, that includes a diamond broach worn by former British Prime Minister Margaret Thatcher and other priceless historic jewelry items.

See all of the items included in the Sotheby's Sale Here.

Spring Into May Auctions

A peek into the treasures to be found in the May auctions.

CHRITIE'S AUCTION HOUSE

Magnificent Jewels May 17, 207 Geneva

LA LÉGENDE
A diamond and cultured pearl sautoir necklace by Boehmer et Bassage
Set with a heart-shaped diamond, weighing approximately 92.15 carats. 

A superb diamond fringe necklace with square, old and baguette-cut diamonds as well as cushion, and single old-cut diamonds set in platinum. Signed Cartier

A colored star sapphire and chalcedony 'bourrelets' ring by Suzanne Belperron.

A pair of ruby and diamond earrings by Bhagat. Stylised lotus flowers with central rubies surrounded by flat diamond petals.

In the culmination of Geneva Luxury Week, the Magnificent Jewels auction features a fantastic 92 carat D Flawless heart-shaped diamond pendant, named ‘La Légende’, and a pair of chandelier earrings, named ‘La Vie Bohème’,  both by Boehmer et Bassenge. With a thematic section dedicated to the Dolce Vita era along with pieces formerly owned by Doris Duke and Elizabeth Taylor, the sale embraces distinguished provenance and jewellery with a storied past. Signed pieces from Bulgari and Cartier, Kashmir sapphires, Burmese rubies and Columbian emeralds round out an exceptional sale this season.

Magnificent Jewels May 30, 2017 Hong Kong

An exceptional natural pearl and diamond necklace, by Paspaley. The three-strand necklace composed of two hundred thirty-seven natural pearls gathered by a button-shaped natural pearl surrounded by circular-cut diamonds.

A unique pair of natural pearl and diamond ear pendants by Etcetera for Paspaley.

An exceptional colored diamond ring by Moussaiff. The rectangular-cut fancy vivid blue diamond, weighing approximately 3.98 carats, within a cushion and triangular-shaped pink diamond surround. 

A natural jadeite and diamond ring. 
A natural oval jadeite cabochon, within a marquise-cut diamond two-tiered surround, to the circular-cut diamond three quarter-hoop, mounted in gold

The Magnificent Jewels Hong Kong auction features an assortment of natural gemstones including pearls, jadeite, and diamonds of various colors. 

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SOTHEBY'S AUCTION HOUSE

Magnificent Jewels and Noble Jewels, Sessions 1, 2, and 3MAY 16, 2017 GENEVA

Pair of attractive diamond ear clips. Diamonds range from 2.01 to 3.08 carats. Accompanied by ten photocopies of GIA reports, stating that the diamonds ranging from 2.01 to 3.08 carats, are D to F Colour, Internally Flawless to VS2 Clarity.

Diamond parure, Van Cleef & Arpels. Comprised of: a sautoir set with brilliant-cut diamonds, supporting a detachable pendant that can be worn as a brooch, a pair of ear clips and a ring 

Two ruby and diamond rings by JAR
 

Important diamond ring by Van Cleef & Arpels.
Set with a step-cut diamond weighing 21.60 carats, between tapered baguette diamonds.

'Apollo & Artemis' fancy blue and fancy pink diamonds. 

Superb and extremely rare fancy vivid blue diamond. 
The pear-shaped fancy vivid blue diamond of truly and outstanding color and purity weighing 14.54 carats, mounted as an earring with a pear-shaped and a brilliant-cut diamond, post fitting. Accompanied by GIA certification. 

The pear-shaped fancy intense pink diamond of fine color weighing 16.00 carats, mounted as an earring with a pear-shaped and a brilliant-cut diamond, post fitting. Accompanied by a GIA certification. 

Sotheby’s spring sale of Magnificent Jewels and Noble Jewels at Mandarin Oriental, Geneva will be led by the ‘Apollo and Artemis Diamonds’. Individually, these captivating diamonds – one Fancy Vivid Blue, one Fancy Intense Pink – are truly exceptional stones and when considered as a pair, they enter a class of their own: the most important earrings ever to appear at auction. Offered separately as individual lots, ‘The Apollo Blue’ will be presented with an estimate of CHF 38,125,000–50,160,000 ($38,000,000–50,000,000) and ‘The Artemis Pink’ is estimated between CHF 12,545,000–18,060,000 ($12,500,000–18,000,000). The sale features jewellery from different collections comprising signed jewels and superb gemstones. Gems from Kashmir, Burma, Colombia rub shoulders with signed jewels from the most iconic and well-known jewellery houses, such as Cartier, Van Cleef & Arpels, Lacloche, Bulgari, Schlumberger and Tiffany.

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BONHAM'S AUCTION HOUSE

Bonham's Jewelry May 24, 2017 Edinburgh 

A Victorian topaz and gold brooch

A pink tourmaline, emerald and diamond necklace, circa 1900

A diamond brooch, circa 1910

A 1940s diamond double clip brooch

A sapphire and diamond ring

Bonham's Rare Jewels and Jadeite May 31, 2017 Hong Kong

A Fine Natural Sapphire and Diamond Ring.
The cushion-shaped sapphire, weighing 10.83 carats, between heart-shaped diamond shoulders, the gallery and hoop pavé-set with brilliant-cut diamonds, diamonds approximately 3.05 carats total, ring size 6½

An Exceptional Ruby, Tsavorite Garnet and Diamond Ring, by Ferri

An Important Natural Ruby and Diamond Bracelet

An Important natural jadeite and diamond 'Guanyin' Pendant

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DOYLE'S FINE JEWELRY AUCTION

Doyle's Auction House May 22, 2017 Beverly Hills

Gem-Set and Enamel and Plique-à-Jour Calla Lily Bracelet by Moira
Numerous round pink sapphires, yellow stones & round diamonds.

Platinum, Gold, White Enamel and Diamond Clip-Brooch, David Webb

Art Deco Platinum, Coral, Black Onyx, Diamond and Enamel Ring
One oval cabochon coral, 8 old European & single-cut diamonds, c.1925

Antique Gold, Tourmaline and Sapphire Cross Pendant, Tiffany & Co.

Doyle will hold the Spring 2017 sale of Fine Jewelry at The Paley Center for Media in Beverly Hills on Monday, May 22, 2017 at 10am (Pacific). Our West Coast sales of Fine Jewelry attract hundreds of bidders vying for exquisite designs consigned from prominent private collections and estates. The range of offerings includes stylish jewelry for garden lunches to glittering statement pieces perfect for the red carpet!

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The Pink Star Diamond Breaks Auction Records

The Pink Star: 59.6 carat pink diamond. Photo from Sotheby's auction house. 

The previous world record for a pink diamond was set in 2010 by the 24.79 carat Graff Pink which was sold for $46.2 million. The Pink Star diamond also broke the record for all diamonds, a title previously held by the Oppenheimer Blue diamond, sold at a Christie’s auction in May for $58 million.

Sotheby's broke records on Tuesday at their Hong Kong auction house with the sale of "The Pink Star" for an astounding $71.2 million. The 59.6 carat pink diamond, was won by Hong Kong-based jewelry retailer Chow Tai Fook after a five-minute bidding war.  

The Pink Star diamond was the largest internally flawless, fancy vivid pink diamond ever graded by the Gemological Institute of America, according to Sotheby’s. 

The Pink Star diamond was originally mined in Botswana, Africa, by De Beers in 1999. The stone came from a 132.5 carat rough diamond. The cutting and polishing took two years of work.

The gem was previously auctioned off in 2014. Isaac Wolf, a diamond cutter, purchased the stone for $93 million at a Sotheby’s auction in Geneva. The diamond was then reclaimed by the auction house after Wolf failed to pay for it. Tuesday's winning bidder Chow Tai Fook has renamed it the CTF Pink Star after it purchased the diamond in honor of the late father of the jeweler retailer’s current chairman.

Shirley Temple's Blue Diamond

The blue diamond ring that belonged to child-star-turned-diplomat Shirley Temple is going up for auction at Sotheby’s next month.
The 9.54 carat stone was bought by the former Hollywood actress’s father around her 12th birthday for $7,210 in 1940 and it became a favored piece of jewelry. 
Shirley Temple Temple began her film career in 1932 at the age of three and in 1934 she found international fame in Bright Eyes. She was well known for her bouncy curls and outgoing personality (she was cute as a button!). From 1935 through 1938 she was Hollywood’s biggest box office star. 
As Shirley Temple Black, she had a long career in public service and was the US ambassador to Ghana and Czechoslovakia. She was also appointed as Chief of Protocol by President Gerald Ford in 1976 and was involved in preparations for President Jimmy Carter’s inauguration. 
She died in February 2014 at the age of 85 at home in Woodside, California.

Blue Diamond Ring being Auctioned by Sotheby's in April

BLUE DIAMOND RING On a Model's hand

Shirley Temple Black as US Ambassador 

The stone has a pre-sale estimate of between $25 million and $35 million and is scheduled to go under the hammer on April 19. 
According to Frank Everett, sales director for Sotheby’s jewelry department in New York the ring had been sold by her estate to a private buyer and that buyer was now putting it up for auction. The stone is in its original platinum and diamond setting. A gold setting that Temple had made for it will also be included.

'Sunrise Ruby' Steals the Show at Sotheby's Auction

The “Sunrise Ruby,” a 25.59-carat untreated pigeon’s blood red-colored stone set a new world auction record for price paid for a ruby on Tuesday at the Sotheby's Geneva sale. The ruby was initially estimated to sell at between $12-$18 million but bidding soared to $30.3 million, demolishing the existing ruby auction record that was held by the $8.6 million sale of the “Graff Ruby.” The ring also set a record for the price paid for a jewel by Cartier. It was sold to an million to an anonymous buyer.
The high price of the ruby heavily contributed to the Sotheby’s Magnificent and Noble Jewels auction which the highest-ever total for any jewelry auction at $160.9 million, deposing the Christie’s November 2014 sale of Magnificent Jewels in Geneva, which totaled $150.2 million.

Also performing well but not meeting pre-sale expectations was the “Historic Pink." The 8.72-carat fancy vivid pink diamond sold for $15.9 million, below its pre-sale high estimate of $18 million.
David Bennett, worldwide chairman of Sotheby’s international jewelry division had this to say about the sale: 
“(The) record result is the reflection of outstanding quality of the pieces in the sale across the board,...The galleries have been brimming with collectors during our worldwide exhibitions, and this translated into lively bidding throughout the sale … with truly global demand for the finest diamonds, gemstones and signed pieces of the very highest order.”

The entirety of the auction results can be viewed at Sotheby's 

Sotheby's to Auction a Historic Pink Diamond

A fancy vivid pink diamond that is believed to have been part of the collection of Napoleon Bonaparte’s niece, Princess Mathilde, could fetch up to $18 million when it hits Sotheby’s auction block next month.
Dubbed the “Historic Pink Diamond,” the diamond is an 8.72-carat stone, VS2 clarity and is a non-modified cushion cut; unusual for a pink diamond.

Scheduled for May 12 Sotheby’s auction of Magnificent Jewels and Noble Jewels, in Geneva.

Kathleen Marino M.A, G.G., AJP, NAJA

The “Ultimate Emerald-cut Eiamond" Fetches More than $22 million

An anonymous buyer who called in their bid became the owner of one impressive diamonds, a 100.2-carat, internally flawless, D color Type IIa diamond. The diamond sold for $22.1 million at Sotheby’s New York jewelry sale on April 21, falling slightly short of its highest pre-sale estimate, $25 million.
The hundred-carat stunner led Tuesday’s Magnificent Jewels sale and was one-third of the auction’s $65.1 million total, a new record for Sotheby’s in New York.
According to Sotheby’s, the stone is the largest “perfect” diamond with a classic emerald cut ever sold at auction and the first 100-carat-plus perfect diamond sold at an auction held in New York. The $22 million paid for it is a record for a colorless diamond auctioned in New York.

Kathleen Marino M.A, G.G., AJP, NAJA

Stunning 100.20 carat D color Diamond

Meet the Ultimate Emerald-Cut Diamond. The 100.20 carat D color internally flawless emerald-cut diamond will go up for auction at Sotheby’s, April 21, 2015. The stone originated from a rough diamond weighing over 200 carats, found in southern Africa by De Beers. It took the owner over a year to cut and polish the diamond.

Sotheby's Breaks Record with 9.75 carat Blue Diamond

                       © Sothebys

On Nov. 20 a 9.75 ct fancy vivid blue pear-shaped diamond hit the auction block at Sotheby's New York. A frenzied 20 minute bidding war between seven people ensued ending with the stone fetching $3.3 million a carat ($32.6 million total), setting a new record for any diamond's per-carat price sold at auction. 
The price tops the 14.82 carat vivid orange sold by Christie's in Geneva which sold at $2.3 million a carat ($35.5 million total). The diamond has also set a record as the most expensive diamond ever, a spot previously held by the Wittlesbach-Gaff  sold in 2008.
The blue has been dubbed "The Zoe" by its current owner, A Hong Kong collector who remains anonymous. 

The Graff Ruby Lead the Sotheby's Geneva Sale

The cushion-shaped ruby weighing 8.62 carats, set between triangular diamond shoulders within a mount decorated throughout with brilliant-cut diamonds, size 59, signed Graff, together with an alternative ring mount, Graff. Photo Courtesy of Sothebys

The November 12th, 2014 Sotheby's Geneva auction was lead by a truly magnificent pigeon-blood colored ruby known as the "Graff Ruby".  The ring was originally sold at auction nine years ago and was purchased by noted jeweller Laurence Graff for a record breaking price. He later named the ruby "The Graff Ruby". 
In Geneva the ring again fetched a record breaking amount (selling for $8,600,410). The ring was part of the Collection of Dimitri Mavrommatis (16 pieces) which also included a rare 27.54 carat step-cut Kashmir sapphire, as well as several pieces by contemporary jewelers, Graff and JAR (who was represented by a pair of superb sapphire, ruby and diamond earrings).

The step-cut sapphire weighing 27.54 carats, set between pear-shaped diamond shoulders, size 53, together with an alternative ring mount, Graff. Photo Courtesy of Sothebys

The "Graff" Ruby information:
The piece was accompanied by Gübelin report stating that the ruby is of Burmese origin, with no indications of heating. The SSEF report together with a letter stating:
"The Graff Ruby...The described gemstones exhibits an impressive weight and purity, combined with a very pleasant shape and cutting style. The faint inclusions found by microscopic inspection represent the hallmarks of the reputed deposit of Mogok in Burma (Myanmar). The stone has been spared to exposure of thermal treatment and its clarity and colour are natural. Its vivid red, poetically referred to as 'pigeon blood' is due to a combination of well balanced trace elements in the stone, typical and characteristic for rubies of the Mogok gemstone tract. Natural Mogok rubies from this size, colour and clarity represent a great rarity and the Graff ruby with its combination of outstanding characteristics is a very exceptional gemstone."