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1/3 Carat TW Diamond F. Necklace
Located in New York, NY
Metal: 10K Pink Metal Size:17 Metal Weight: 3.05 grams Gemstone: Diamond Diamond Weight: 0.33 CT
Category

21st Century and Contemporary Indian More Necklaces

1/3 Carat TW Diamond Fashion Necklace
Located in New York, NY
Metal: 10K White Metal Weight: 3.35 grams Metal Size: 17 Gemstone: Diamond Diamond Weight: 0.33 CT
Category

21st Century and Contemporary Indian More Necklaces

Cross Diamond 3 Carat and Blue Sapphire 4.07 Carat Pendant Necklace
Located in New York, NY
Exquisite Cross Diamond and Sapphire Pendant Necklace Stone: Diamonds Stone Carat Weight: 3.00
Category

1990s Art Deco Pendant Necklaces

Materials

Diamond, Blue Sapphire, 18k Gold

16 Carats Natural Diamonds Tennis Necklace in 14K White Gold 3 Prong
Located in Jersey City, NJ
Carat Weight: 16ct Round Diamond Metal Type: 14kt White Gold Color Grade: D/F Clarity: VVS2
Category

21st Century and Contemporary American Contemporary Link Necklaces

Materials

Diamond, White Gold

3 Carat 14k Yellow Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Yellow Gold

3 Carat 14k Rose Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Rose Gold

3 Carat 14k Rose Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Rose Gold

3 Carat 14k Rose Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Rose Gold

3 Carat 14k Yellow Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Yellow Gold

3 Carat 14k Rose Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Rose Gold

3 Carat 14k Yellow Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Yellow Gold

3 Carat 14k Yellow Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, Yellow Gold

3 Carats 14k White Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, White Gold

3 Carats 14k White Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, White Gold

3 Carats 14k White Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, White Gold

3 Carats 14k White Gold Natural Round Diamonds Circle Pendant Necklace
Located in Los Angeles, CA
This diamond circle pendant provides a glowing chic look. Metal: 14k Gold Diamond Total Carats: 3
Category

2010s American Pendant Necklaces

Materials

Diamond, White Gold

Platinum Diamond Clasp 3 Strand Pearl Choker Necklace
Located in Boca Raton, FL
Platinum Diamond Clasp (3) Strand Pearl Choker Necklace. Marquise, Baguette and Round Brilliant Cut
Category

2010s Choker Necklaces

Materials

Diamond, Pearl, Platinum

14 Karat White Gold 3 Carat Dazzling Diamond Heart Pendant Necklace
Located in Metairie, LA
speaks for itself. Not your ordinary diamond heart pendant necklace. This bright and sparkling necklace
Category

2010s Unknown Retro Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Roberto Coin Appassionata like Brilliant 3-Row Necklace with 0.22 Carat Diamonds
By Roberto Coin
Located in Toronto, Ontario
Necklace with Diamond Clasp in 18k Italian Gold 0.22 carat diamonds 1 ruby inside clasp
Category

2010s Italian Choker Necklaces

Materials

Diamond, 18k Gold

Elegant 3 Carat Diamond Set 18 Karat White Gold Pear Drop Necklace
Located in London, London
drop Hallmarks: d510 STONE SPECIFICATIONS Carat Weight: 1.61ct single diamond & 1.30 small diamonds
Category

20th Century Drop Necklaces

Materials

Diamond, 18k Gold, White Gold

3/8 Carat TW Diamond Pendant
Located in New York, NY
3/8 CT TW DIA PENDANT Metal: 10K White Pink Metal Weight: 2.83 grams Gemstone: Diamond Diamond
Category

21st Century and Contemporary Indian Pendant Necklaces

Materials

Diamond

3-1/4 Carat 18K Gold over Silver Swiss Blue Topaz and Diamond Pendant Necklace
By Affinity Designs LLC
Located in New York, NY
Indulge in the elegance of our Oval Swiss Blue Topaz and White Diamond Accent Pendant Necklace in
Category

2010s Asian Contemporary Pendant Necklaces

Materials

Diamond, Blue Topaz, Sterling Silver, Gold Plate

18 Karat Yellow Gold and Diamond 3-Stone Drop Pendant Necklace 0.50 Carat
Located in Beverly Hills, CA
18k Yellow Gold & Diamond 3 Stone Drop Pendant Necklace 0.50ctw Beautiful diamond pendant
Category

1990s Pendant Necklaces

Materials

Diamond, Yellow Gold

18 Karat Gold Peach Morganite Ballerina Necklace w/ Baguette Diamonds 2/3 Carat
By Doves by Doron Paloma
Located in Great Neck, NY
18K Rose Gold Ballerina Style Necklace, featuring over a 1-Carat Round Morganite, surrounded 2/3
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

Diamond, White Diamond, Morganite, Gold, 18k Gold, Rose Gold

31.98 Carat White GVS Diamonds 18 Karat White Gold 3 Rows Tennis Necklace
By Federico Bellini
Located in Valenza, IT
Stunning 3 rows tennis necklace with white round brilliant diamonds color G clarity VS for 31.98
Category

2010s Italian Contemporary Link Necklaces

Materials

White Diamond, 18k Gold

Vintage Italy 1960 18 Karat Yellow Gold 3-4 Carat Diamond Emerald Necklace
Located in New York, NY
Vintage Italy 1960 18k Yellow Gold 3-4ct Diamond and 5-6ct Fancy Emerald of 7-8mm Two String Pearl
Category

21st Century and Contemporary Italian Modern More Necklaces

Materials

Diamond, Emerald, 18k Gold

3/8 Carat Marquise Round Certified Diamond Pendant/Necklace in 14 Karat Rose
Located in NEW YORK, NY
IGI CERTIFIED. Make a statement with this stunning piece of jewelry. Each certified diamond is
Category

21st Century and Contemporary Indian Drop Necklaces

Materials

Diamond, 14k Gold

3/8 Carat Marquise Round Certified Diamond Pendant/Necklace in 14 Karat White
Located in NEW YORK, NY
IGI CERTIFIED. Make a statement with this stunning piece of jewelry. Each certified diamond is
Category

21st Century and Contemporary Indian Drop Necklaces

Materials

Diamond, 14k Gold

Natural Briolette Diamond 3-Raw Choker Necklace in 18 Karat Gold
By Great Diam
Located in Hong Kong, HK
Yellowish Color Briolettes Weighing 220.46 Carats Set With 4.65 Carats Rosecut Diamonds Beautifully Hand
Category

21st Century and Contemporary Hong Kong Art Deco Beaded Necklaces

Materials

Diamond, White Diamond, Yellow Diamond, 18k Gold

18 Karat Gold Art Deco Style Necklace with Black Onyx and 1/3 Carat Diamonds
By Doves by Doron Paloma
Located in Great Neck, NY
Art-Deco style Necklace featuring Square, Checker-Cut Black Onyx and 1/3-Carat Diamond Pave set in
Category

21st Century and Contemporary American Art Deco Drop Necklaces

Materials

Diamond, White Diamond, Onyx, Gold, 18k Gold, Yellow Gold

Men s TItanium Necklace with 3 Coresses and White Diamonds, 9KT Red Gold
By MANO | J.
Located in Valenza, AL
Men's Minimal necklace in titanium, white diamonds, 9kt red gold and chain . Necklace consisting of
Category

2010s Italian Modern Chain Necklaces

Materials

Black Diamond, Gold, Titanium

Capucelli 9.69ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
box chain embellished with dozens of shimmering white diamonds. Beautiful Diamond Tennis Necklace. A
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

Capucelli 10.30ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
box chain embellished with dozens of shimmering white diamonds. Beautiful Diamond Tennis Necklace. A
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

20 carats Natural Diamond Tennis Necklace in 14K White Gold 3 Prong VS2/SI1 G/H
Located in Jersey City, NJ
Metal Type:- White Gold Carat Weight:- 20 Carat Diamonds Diamond Shape:- Round Metal Type:- 14kt
Category

21st Century and Contemporary North American Modern Chain Necklaces

Materials

White Diamond, White Gold

Natural Emerald 3 Carat and Diamond 18 Karat Gold Bee Pendant
Located in London, London
Hallmarks: 750 STONE SPECIFICATIONS Carat Weight: 3.00 Emeralds & 1.50 Diamonds Shape: Drop & Round Cut
Category

20th Century Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

2#3#4#5 18 Karat White Gold Ring 1, 60 Carat White Emerald Pear Cut Diamond
By Remida Tornaghi
Located in Monza, IT
18 Karat White Gold Ring 1,60 Carat White Emerald & Pear Cut Diamond This stunning ring can be
Category

21st Century and Contemporary Italian Contemporary Necklace Enhancers

Materials

Diamond, White Diamond, Emerald, 18k Gold, White Gold

16.93 Carat White GVS Diamonds 18 Karat White Gold 3 Rows Tennis Necklace
By Federico Bellini
Located in Valenza, IT
width of 1 centimeter. Diamonds are white round brilliant color G clarity VS for 16,93 carats. The
Category

2010s Italian Contemporary Multi-Strand Necklaces

Materials

White Diamond, 18k Gold

300 Carat Aquamarine and Pink Topaz 3 Strand Necklace
Located in New York, NY
A stunning, 300 carat, Aquamarine and Pink Topaz three strand necklace, that is comprised of 5.50
Category

21st Century and Contemporary Unknown Contemporary Multi-Strand Necklaces

Materials

Aquamarine, Diamond, Topaz, 18k Gold

Capucelli 7.06 ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
Description Beautiful Diamond Tennis Necklace. A staple in your jewelry collection. Handmade in New
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

Capucelli 7.50 ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
Description Beautiful Diamond Tennis Necklace. A staple in your jewelry collection. Handmade in New
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

3/4 Carat TW Diamond Heart Pendant
Located in New York, NY
Metal: 14K White Metal Weight: 3.57grams Gemstone: Diamond Diamond Weight: 0.74 CT Clarity: I2-13
Category

21st Century and Contemporary Indian Pendant Necklaces

Capucelli 5.50 ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
box chain embellished with dozens of shimmering white diamonds. Beautiful Diamond Tennis Necklace. A
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

Capucelli 3.50 ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
box chain embellished with dozens of shimmering white diamonds. Beautiful Diamond Tennis Necklace. A
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

Capucelli 4.50 ct. t.w. Natural Diamonds Tennis Necklace, 14k Gold 3-Prongs
By Capucelli
Located in Great Neck, NY
box chain embellished with dozens of shimmering white diamonds. Beautiful Diamond Tennis Necklace. A
Category

21st Century and Contemporary Art Nouveau Chain Necklaces

Materials

Diamond, 14k Gold

GIA 1.51ct E VS1 3 Excellent Pendant Necklace
Located in Neihu Dist., TW
PING LAKE CO.,LTD offer a beautiful white diamond pendant necklace with GIA 1.51ct E color/ VS1
Category

Early 2000s European Art Deco Pendant Necklaces

Materials

Diamond, Platinum

3/4 Carat Total Weight Diamond Cross Pendant
Located in New York, NY
Metal: 14K White Metal Weight: 3.18 grams Gemstone: Diamond Diamond Weight: 0.75 CT Clarity: I2
Category

21st Century and Contemporary Indian Pendant Necklaces

3/4 Carat Certified Diamond Earring 3 in 1 Wearing Option-See Descp 14 Karat
By Collective Brilliant
Located in NEW YORK, NY
Make a statement with this stunning piece of jewelry. Each certified diamond is carefully set. All
Category

Antique 19th Century Indian Pendant Necklaces

Materials

Diamond, 14k Gold

1/3 carat Certified Diamond Square Pendant in 18 Karat
By Collective Brilliant
Located in NEW YORK, NY
Make a statement with this stunning piece of jewelry. Each certified diamond is carefully set. All
Category

Antique 19th Century Indian Pendant Necklaces

Materials

Diamond, 18k Gold

Conflict Free 3/4 Carat Diamond Cluster Pendant with Chain in 14 Karat White
By Leo Ingwer
Located in New York, NY
Beautiful and delicate diamond cluster pendant holding 10 diamonds G color SI clarity weighing .69
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, White Gold

1/3 Carat Certified Special Cut Diamond Pendant 14 Karat Gold
By Collective Brilliant
Located in NEW YORK, NY
Make a statement with this stunning piece of jewelry. Each certified diamond is carefully set. All
Category

Antique 19th Century Indian Pendant Necklaces

Materials

Diamond, 14k Gold

3/4 Carat Certified Exclusive Cut Diamond Pendant 18 Karat Gold
By Collective Brilliant
Located in NEW YORK, NY
Make a statement with this stunning piece of jewelry. Each certified diamond is carefully set. All
Category

Antique 19th Century Indian Pendant Necklaces

Materials

Diamond, Gold, 18k Gold

3 Carat Round Brilliant Cut Diamond Solitaire Pendant 14 Karat Gold
Located in Tarzana, CA
Solitaire pendant, four prong & bezel, white gold, yellow gold, rose gold, round diamonds; diamond
Category

21st Century and Contemporary American Artist Chain Necklaces

Materials

Diamond, 14k Gold

18k White Gold 3 Carat Diamond Cross Pendant on Black Silk Cord
Located in Sherman Oaks, CA
Total Diamond Weight = Appx 3 Carats Average Color = G - H Average Clarity = VS - SI Dimensions of Cross
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

18 Carat Gold Pendant Set with 3 Pear, Shaped Sapphires and 14 Diamonds
Located in VERSAILLES, FR
Joli pendentif en or 18 carats orné de 3 saphirs poires pesant au total 0.70 carat environ et de 2
Category

21st Century and Contemporary French Modern Pendant Necklaces

Materials

Diamond, Sapphire, 18k Gold, Gold

GIA D Color Internally Flawless 1.14 Carat Round Diamond 3 EX Gold Pendant
Located in New York, NY
Round diamond weighing 1.14 carats with a certificate from the Gemological Institute of America
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold

1/3 Carat Certified Round Bagg and Diamond Halo Pendant 14 Karat Gold
By Collective Brilliant
Located in NEW YORK, NY
Make a statement with this stunning piece of jewelry. Each certified diamond is carefully set. All
Category

Antique 19th Century Indian Pendant Necklaces

Materials

Diamond, Gold, 14k Gold

18 Karat Yellow Gold Circle Charm with Triple Diamond Necklace
Located in Los Angeles, CA
necklace. 3, 0.50 total carat weight brilliant round diamonds 18kt Yellow Gold Diamond Clarity: SI1-VS2
Category

2010s American Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

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Diamond Necklace 3 Carat For Sale on 1stDibs

Find the exact diamond necklace 3 carat you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a diamond necklace 3 carat 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. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. There have been many well-made iterations of the classic diamond necklace 3 carat over the years, but those made by LB Exclusive, TJD and Roman Malakov are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and pear cut cut versions available here, too. Most of our diamond necklace 3 carat for sale are for women, but there are 2923 pieces available to browse for men.

How Much is a Diamond Necklace 3 Carat?

On average, a diamond necklace 3 carat at 1stDibs sells for $4,346, while they’re typically $1 on the low end and $3,600,000 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 Diamond Necklace 3 Carat
  • 1stDibs ExpertSeptember 28, 2021
    A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.
  • 1stDibs ExpertFebruary 27, 2024
    In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
  • 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.
  • 1stDibs ExpertFebruary 13, 2023
    Whether a 3-carat diamond is considered big is largely a matter of personal opinion. The average diamond is 1 to 2 carats in size. On 1stDibs, shop a selection of diamond jewelry.

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