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Bulgari and Cartier shine in May 26 designer jewelry sale

Don’t ask if you deserve it. Of course you do. You are worthy and yes, you can and should have nice things. On May 26, starting at 9 pm Eastern time, Jasper52 will present 362 ways to reward yourself through its Designer Jewelry & Watches sale, featuring pieces from storied brand names such as Piaget, Bulgari, Van Cleef & Arpels, Cartier, Tiffany & Co., David Yurman, Chanel, and many more.

Limited edition Roberto Coin Nemo cuff bracelet, estimated at $23,000-$28,000

View the auction here.

Learn more about the auction on Auction Central News.

Dip into an auction trove of antique to modern fine jewelry, April 7

All that glitters earns the spotlight in Jasper52’s Antique to Modern Fine Jewelry auction, scheduled for April 7 and beginning at 4 p.m. Eastern time. Absentee and Internet live bidding is available through LiveAuctioneers.

Nobody strictly needs jewelry, but everyone needs a bit of sparkle in their lives, especially now, more than a year into the COVID-19 pandemic. With improved distribution of the various vaccines and vaccination rates slowly rising, it’s OK to think about shedding the sweatpants and glamming up to go out on the town in the near future.

An 18k David Yurman Supernova ring with diamonds, estimated at $6,000-$7,000.

View the auction here.

Learn more about the auction on Auction Central News.

Jasper52 showcases the lustrous beauty of pearls in Oct. 7 auction

The beauty and versatility of pearls will be on full display October 7 as Jasper52 presents a 186-lot auction of fine pearl jewelry in its many elegant forms. Whether the goal is understated chic or scene-stealing dazzle, the right piece is waiting for you in this very special sale.

Stunning 18K yellow gold adjustable bracelet with nine top-quality oval high-luster golden South Sea pearls. Estimate $2,000-$2,200

View the auction here.

Learn more about the auction on Auction Central News.

Diamonds: In Living Color

While most are familiar with the fiery sparkle of clear, colorless diamonds, the coveted gemstones actually occur in all colors of the rainbow.

Diamonds are the product of time and nature. It took an average of two billion years for highly compressed carbon, 90 to 500 miles underground, to form hardened crystals known as allotropes. Then, sometime within the last 100 million years or so, volcanic eruptions deep within the Earth deposited the highly structured crystals in vertical “pipes” of igneous kimberlite. Commercial miners have been extracting diamonds from kimberlite ever since the first major diamond discoveries in South Africa, in the mid-19th century. 

Your diamond ring or pendant tells a great story of creation from stone to symbol of love as it dazzles and throws off light in every direction. But pass a light through a clear, colorless diamond just right and you’ll discover that it reflects all the colors of the rainbow.

Pick a color, any color, and it can probably be seen in a diamond. From the colorless to the darkest black, with variations of color in between, diamonds are hued according to the impurity of chemicals found in the Earth itself.

Colorless diamonds, for example, have no visible impurity apart from small specks of black carbon called inclusions. However, an additional natural chemical impurity and how the atoms are distributed (called “lattices”) can change the colorless into a palette of colorful options. According to the diamond industry, there are 27 different official variations of diamond colors.

A GIA-certified fancy yellow diamond weighing 4.17 carats in a cushion-modified brilliant cut fluoresces a gentle yellow hue. It sold for $50,000 in September 2019. 
Image courtesy Kissing Auctions and LiveAuctioneers

What is a diamond color?

In 1953, the Gemological Institute of America (http://www.gia.com) classified the rarity of polished diamonds based on the now iconic four ‘C’s: carat (weight), how it’s cut, and its clarity. Most diamonds made into pendants, rings, bracelets, earrings, necklaces, and brooches are clear. But even colorless diamonds usually display some subtle shade of color. The more colorless, the more valuable a diamond is per carat. 

To determine a diamond color, a standard grading system was developed that classified an individual polished diamond according to the shade of color ranging from D (colorless) to Z (light color). The closer to grade D, the more colorless it is and the more valuable. How is the color measured? A loose, cut diamond is exposed to ultraviolet light, which measures its “fluorescence,” or the light a diamond gives off. A yellow fluorescence is less desirable than a blue fluorescence, for example, which affects the final value of the cut diamond.

So with all that in mind, here’s a primer on diamond colors, based on information from the Diamond Manufacturers and Importers Association (http://www.dmia.net). 

Red diamonds certified as a “D,” the highest color standard, would be worth millions per carat as they are the rarest diamonds mined. This fancy red 2-carat example is at the far end of the color standard near the “S” range and sold for $37,500 in March 2014. 
Image courtesy Vancouver Island Art Auction and LiveAuctioneers

The fancy color diamonds

Clear 

These are not actually clear or translucent, according to the diamond industry. They are classified as white diamonds, usually free of additional impurities other than pure carbon called inclusions, which determine its final value. 

Brown

Curiously enough, brown diamonds are the most common color of diamonds overall. The lattices reflect the darker brown color. They don’t have the brilliance of the more pastel varieties and were mostly intended for industrial use. However, these ‘chocolate’ diamonds are gaining gaining interest beyond their industrial applications and are being set as a distinctive counterpoint to the more reflective diamonds in jewelry. 

Orange

An orange diamond gets its appearance from its high concentration of isolated nitrogen. While pure orange color is very rare, those that have secondary colors such as yellow, brown or even pink are more commonly seen. 

Yellow

Like orange diamonds, yellow diamonds contain more of the nitrogen atom that fluorescences yellow than other diamonds. The brighter the shade, the more valuable the stone. Lighter shades of yellow that also show shades of green, yellow or even brown are more readily available.

According to diamond sites, values for diamonds in fancy colors can range from thousands of dollars a carat to nearly $50,000 a carat for the very intense color range. 

 

One of the rarer diamond colors, this 3.5 carat fancy blue, marquis-cut diamond whose “…clarity may be potentially internally flawless…,” according to the auction-catalog description, is set off by a platinum band and baguette diamonds along the band. The ring sold for $1.4 million (hammer price) in April 2013.

 

The rarest diamonds

Blue and pink are among the rarest diamond colors. Such stones can sell at auction for millions of dollars per carat, depending on the vibrancy of its color.

Other diamonds that rarely appear at auction are gray, purple and green. Green diamonds, for example, are formed from natural exposure to radiation and the formation of lattices. Once found, these diamonds are usually professionally cut and retained as an investment rather than being set into jewelry. 

Black diamonds have an overabundance of graphite that makes the stone rather opaque and particularly rare in a completely dark black color. 

These color diamonds can range in value from $10,000 to several times that per carat depending on the vibrancy or absence of other colors when placed under UV light. 

The most rare of any diamond shade is the red diamond. A pure-red diamond can auction for millions of dollars per carat. Like brown diamonds, the red diamond’s color comes from its lattice construction and not necessarily from a chemical impurity, but is very difficult to find a diamond that is pure red.  

This more-standard “white” diamond shows brilliantly when cut into a heart shape and set in white gold. Its total weight is 1.65 carats. Sold for $4,600 in March 2019.
Image courtesy Great Deal Auctions and LiveAuctioneers

An investment that sparkles

Diamonds are considered a great addition to an investment portfolio. They hold their value, even during inflationary periods, don’t take up a lot of room, and are portable. Yet, diamonds are one of the few investments that can be appreciated aesthetically, as jewelry, rings, pendants, brooches or watch adornments. And they make a lasting personal connection when given as gifts on special occasions. That’s hard to do with stocks and bonds.

Diamonds and ethics

Diamonds are mined in different ways. The Kimberley Process Certification Scheme (KPCS) is the international standard for overseeing the import and export of diamonds to severely restrict “conflict” or “blood” diamonds from reaching the end consumer. This terminology refers to diamonds mined in a war zone and sold to finance an insurgency, an invading army’s war efforts, or a warlord’s activity. While the KPCS isn’t always successful, diamonds exported to the United States, the largest diamond market, it has strengthened the diamond trade’s efforts to keep “blood diamonds” out of the marketplace. A retailer should have the certification available to prove a diamond’s source, if asked.

From millions of years as pressurized carbon to a dazzling accessory, diamonds really are “forever.”

Fine jewelry, couture offered in Jasper52 sale March 18

From classic Hermes Birkin bags and Versace jackets to trendy Chanel bracelets and Tiffany rings, the Jasper52 online auction inspired by the Las Vegas Show on March 18 features the best of the best in luxury jewelry and fashion. All items are sourced from trusted dealers that exhibit at shows in Las Vegas.

There are only two sapphires in the world like this 26.14-carat blue Ceylon sapphire and diamond ring in 18K white gold. Estimate: $260,000-$312,000. Jasper52 image

View the auction here.

Learn more about the auction on Auction Central News.

Fine jewelry, fashions, decorative arts go up for bid Feb. 11

From iconic Bulgari jewelry to Georg Jensen silver, rare Versace designs and more, a Jasper52 online auction of Jewelry & Decorative Arts Inspired by Miami Beach on Tuesday, Feb. 11, features the best in jewelry, decorative art and fashion.

Signed David Webb diamond and enamel bracelet, Animal Kingdom Collection, 1990s, 18K gold, platinum, enamel, diamonds, rubies. Estimate: $42,000-$50,000. Jasper52 image

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Learn more about the auction on Auction Central News.

Colorful Stambolian jewelry starring in online auction Jan. 22

On Wednesday, Jan. 22, Jasper52 will conduct an online auction devoted exclusively to the designs of the Stambolian House of Jewels, the fine jewelry brand specializing in 18K gold, diamond, and precious and semiprecious stones. More than 300 lots of Stambolian jewelry, all handmade in the United States by highly skilled and experienced artisans, will be offered.

Stambolian 18K gold bangle bracelet with pink sapphires (12.25 carats) and diamonds (4.30 carats). Estimate: $16,000-$19,000. Jasper52 image

View the auction here.

Learn more about the auction on Auction Central News.

Jasper52 auction highlights lustrous pearl jewelry Nov. 19

Jasper52 will hold a jewelry auction on Tuesday, Nov. 19, that showcases the beauty and versatility of fine cultured South Sea pearls. Pearl jewelry of elegant simplicity and glowing showstoppers are offered in this exclusive collection of 66 lots.

South Sea pearl with five round brilliant cut diamonds (0,04 carats) and an 18-inch 18K yellow gold chain. Estimate: $1,000-$1,100. Jasper52 image

View the auction here.

Learn more about the auction on Auction Central News.

Cartier among top names in online auction Oct. 13

Exquisite jewelry and high-quality decorative arts are offered in an online auction to be conducted by Jasper52 on Sunday, Oct. 13. Cartier and Van Cleef & Arpels rings, brooches and bracelets; Patek Philippe and Cartier watches; Hermes handbags, English sterling silver and superb European porcelain fill out the 322-lot catalog.

Cartier 18K yellow gold, diamond, sapphire, emerald and ruby ring, size US 5 ¼, with original Cartier box. Estimate: $8,000-$10,000. Jasper52 image

View the auction here.

Learn more about the auction on Auction Central News.

Designer & luxury jewelry showcased in online auction Sept. 25

Jasper52 will host an outstanding selection of luxury jewelry from a variety of designers, eras and mediums on Wednesday, Sept. 25. Highlights of the 174-lot sale include a classic pair of Buccellati diamond earrings, a head-turning Van Cleef & Arpels bracelet and several fancy yellow diamond rings.

Van Cleef & Arpels Ludo ‘Ludo-Hexagonal’ bracelet, yellow gold and platinum set with diamonds, made in France, 1940s. Estimate: $80,000-$85,000. Jasper52 image

View the auction here.

Learn more about the auction on Auction Central News.