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42 Carat Diamond Necklace

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42 Carat Natural Untreated Diamond Tennis Necklace 18 Carat White Gold
By Antinori Fine Jewels
Located in Chicago, IL
Introducing our 20-inch Tennis necklace, a breathtaking fusion of elegance and sophistication
Category

2010s Unknown Modern Chain Necklaces

Materials

Diamond, 18k Gold, White Gold

42 Carat Aquamarine Diamond Gold Pendant Drop
Located in New York, NY
x 16.9 x 10.2mm) , oval stone is approx. 18 carats (20.2 x 15.8 x 10.3mm) . Diamonds approx. 1
Category

20th Century Necklace Enhancers

Materials

Aquamarine, Diamond, Gold

GIA Certified .42 Carat Diamond Solitaire Necklace G/Vs2
Located in New York, NY
GIA Certified: .42ct. Round diamond solitaire pendant. Full cut brilliant. Vs-2 Clarity. G
Category

2010s American Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

42 Carats Malachite with Black Diamonds on Black Chain Necklace
By Paradizia
Located in Laguna Beach, CA
drop shape, 42 carats. Black pave diamonds. Black rhodium sterling silver. Clasp and 3mm beads, 14k
Category

21st Century and Contemporary American Artisan Drop Necklaces

Materials

Black Diamond, Malachite, 14k Gold, Rhodium, Sterling Silver

42 Carat Oval Ethiopian Opal & Diamond Pendant 14 Karat White Gold Necklace
Located in New York, NY
Approximately 42 Carat Oval Ethiopian Opal & Diamond Pendant 14 Karat White Gold Necklace with
Category

2010s Pendant Necklaces

Materials

Opal, Diamond, Gold, 14k Gold, White Gold

18K White Gold 27 Carats Diamond By The Yard Chain Necklace 42 Inches Long
Located in New York, NY
-quality natural diamonds, each weighing between 0.18 to 0.19 carats. The necklace measures an elegant 42
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Diamond, 18k Gold, White Gold

1900s 42 Carats Diamonds Fringe Necklace
Located in Chicago, IL
. Estimated total diamond weight 42 carats. The necklace measures 43.5 cm (17 inches) long and 33 mm (1 5/8
Category

Early 20th Century More Necklaces

Materials

Diamond

42 Carats Diamond Snowflake Platinum Necklace
Located in New York, NY
Presenting a breathtaking masterpiece, the Platinum 42 Carat Diamond Snowflake Necklace. This
Category

20th Century American Modern Chain Necklaces

Materials

Diamond, Platinum

Diamond Tennis Necklace with .42 Carat Pink Diamond and 5.39 Carat Pear Diamond
By New York Jewelers Chicago
Located in Chicago, IL
This Signature necklace is 18 inches in length. It contains a GIA Certified pear shaped H, SI2
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, White Diamond, Pink Diamond, 18k Gold

Alexander 42 Carat Emerald Cut Diamond Tennis Necklace 18 Karat White Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Exquisite and timeless diamonds tennis necklace. Created by Alexander Beverly Hills. 125 emerald
Category

21st Century and Contemporary American Contemporary More Necklaces

Materials

Diamond, 18k Gold, White Gold

Tiffany & Co. Diamond Cross Pendant Necklace Platinum 950 Round .42 Carat Faith
By Tiffany & Co.
Located in Greensboro, NC
: Natural Diamonds Total Carats: .42ctw Cut: Round Brilliant Color: F Clarity: VS1 Style: Pendant Chain
Category

20th Century Unknown Pendant Necklaces

Materials

Diamond, Platinum

Art Deco 14 Karat Gold .42 Carat Old European Cut Diamond Pendant Necklace
Located in Cape May, NJ
European Cut Diamond Carat Weight: Approximately .42 Carats Color/Clarity: G / SI2 Necklace Length: 18
Category

Vintage 1920s Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Diamond Necklace, 14 Karat Rose Gold Adjustable Cable Chain Round Cut .42 Carat
Located in Greensboro, NC
beads adorned with curving strands of diamonds. The chain’s adjustable length gives the necklace
Category

21st Century and Contemporary Unknown Chain Necklaces

Materials

Diamond, 14k Gold, Rose Gold

Diamond Necklace, 14 Karat White Gold Adjustable Cable Chain Round Cut .42 Carat
Located in Greensboro, NC
Stone Information: Natural Diamonds - Clarity: SI1 - SI2 Color: G - H Cut: Round Total Carats: 0.42ctw
Category

21st Century and Contemporary Unknown Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

.42 Carat Round Brilliant Diamond Bar Necklace, 14 Karat Rose Gold Cable Chain
Located in Greensboro, NC
Diamonds Clarity: SI1 - SI2 Color: G - H Cut: Round Brilliant Total Carats: 0.42ctw Attached Pendant
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold

Tiffany & Co. Yellow Gold Diamond Cross Pendant .42 Carat
By Tiffany & Co.
Located in London, GB
An 18k yellow gold diamond pendant by Tiffany & Co. The pendant features a cross motif which is
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Theo Fennell Yellow Gold Diamond Shaft Pendant .42 Carat
By Theo Fennell
Located in London, GB
A sparkly 18k white gold Theo Fennell diamond pendant from the Shaft collection. The pendant
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Tiffany & Co. Platinum .42 Carat Diamond Cross Pendant Necklace
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Platinum .42ct Diamond Cross Pendant Necklace Metal: Platinum Chain: 16" long
Category

2010s American Pendant Necklaces

Materials

Diamond, Platinum

42 Carat Diamond Riveria Double Necklace
Located in Saint Louis, MO
Gorgeous 42ct diamond rivera double necklace set in 18kt white gold. This convertible necklace can
Category

21st Century and Contemporary Unknown Modern Multi-Strand Necklaces

Materials

Diamond, 18k Gold

42 Carat Diamond Riveria Double Necklace
42 Carat Diamond Riveria Double Necklace
W 0.2 in D 0.13 in Dm 38.23 in
14 Karat Yellow Gold Diamond Nugget Pendant .42 Carat TW SI1-SI2; G-K 12.0 Grams
Located in Daytona Beach, FL
14 Karat Yellow Gold Diamond Nugget Pendant .42 Carat TW SI1-SI2; G-K . The diamonds are round
Category

Vintage 1980s Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Vintage Tiffany & Co. Platinum, Diamond Tulip Pendant with .42 Carat of Diamonds
By Tiffany & Co.
Located in New Orleans, LA
Vintage Diamond Tulip Pendant by Tiffany & Co, The Pendant has 42 Round Brilliant Cut Diamonds that
Category

21st Century and Contemporary Unknown Artist Pendant Necklaces

Materials

Diamond, Platinum

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42 Carat Diamond Necklace For Sale on 1stDibs

Surely you’ll find the exact 42 carat diamond necklace you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using gold, white gold and 18k gold. Find an antique version now, or shop for 432 vintage or 790 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a 42 carat diamond necklace from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. Finding an appealing 42 carat diamond necklace — no matter the origin — is easy, but Chopard, Cartier and Shlomit Rogel each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and oval cut cut versions available here, too. If you’re browsing our inventory for a 42 carat diamond necklace, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 42 Carat Diamond Necklace?

On average, a 42 carat diamond necklace at 1stDibs sells for $4,425, while they’re typically $1 on the low end and $4,810,000 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany & Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany & Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef & Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Finding the Right Necklaces for You

We are fortunate to know much of the world’s long and dazzling history of necklaces, as this type of jewelry was so treasured that it was frequently buried with its owners. Today, Van Cleef necklaces, Tiffany necklaces and Cartier necklaces are some of the most popularly searched designer necklaces on 1stDibs.

Lapis lazuli beads adorned necklaces unearthed from the royal graves at the ancient Iraqi civilization of Sumer, while the excavation of King Tut’s burial chamber revealed a sense of style that led to a frenzy of Art Deco designs, with artisans of the 1920s seeking to emulate the elegant work crafted by Ancient Egypt’s goldsmiths and jewelry makers. 

In ancient times, pendant necklaces worn by royalty and nobles conferred wealth and prestige. Today, wearing jewelry is about personal expression: Luxury diamond necklaces exude confidence and can symbolize the celebratory nature of a deep romantic relationship, while paper-clip chain-link necklaces designed by the likes of goldsmith Faye Kim are firmly planted in the past as well as the present. Kim works exclusively with eco-friendly gold, and these fashionable, fun accessories owe to the design of 19th-century watch fobs. 

For some, necklaces are thought of as being a solely feminine piece, but this widely loved accessory has been gender-neutral for eons. In fact, just as women rarely took to wearing a single necklace during the Renaissance, men of the era layered chains and valuable pendants atop their bejeweled clothing. In modern times, the free-spirited hippie and counterculture movements of the 1960s saw costume-jewelry designers celebrating self-expression through colorful multistrand necklaces and no shortage of beads, which were worn by anyone and everyone. 

Even after all of these years, the necklace remains an irrefutable staple of any complete outfit. Although new trends in jewelry are constantly emerging, the glamour and beauty of the past continue to inform modern styles and designs. In a way, the cyclical history of the necklace differs little from its familiar looped form: The celebrated French jewelry house Van Cleef & Arpels found much inspiration in King Tut, and, now, their Alhambra collection is a go-to for modern royals. Vintage David Webb necklaces — whose work landed him on the cover of Vogue in 1950, two years after opening his Manhattan shop — were likely inspired by the ornamental styles of ancient Greece, Mesopotamia and Egypt

On 1stDibs, browse top designers like Dior, Chanel and Bulgari, or shop by your favorite style, from eye-catching choker necklaces to understated links to pearl necklaces and more. 

Questions About 42 Carat Diamond Necklace
  • 1stDibs ExpertNovember 6, 2023
    There is no hard-and-fast rule for how many carats a diamond necklace should be. On average, solitaire diamond necklaces range from 0.5 to 1 carat, but you can find pieces with larger and smaller stones. Tennis chains that feature continuous diamonds set into links usually have much higher total carat weights. For example, one might feature 60 individual diamonds, each 0.20 carats in size, for a total carat weight of 12.0 carats. Shop a wide range of diamond necklaces on 1stDibs.

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