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Antique Edwardian 3 Carat Diamond Pendant Brooch Platinum Vintage Fine Jewelry
Located in Torrance, CA
. The pendant is set with old mine cut diamonds that total an estimated 3 carats. The larger center set
Category

Early 20th Century Unknown Edwardian Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

14K Yellow Gold over Silver 1 3/8 Carat Baguette Diamond Composite Heart Pendant
Located in New York, NY
1 3/8 c.t. The composite design is embellished with natural, baguette-cut diamonds. The stones are
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver, 14k Gold, Yellow Gold, Silver

Antique Edwardian 3 Carat Diamond Pendant Brooch Platinum Vintage Fine Jewelry
Located in Torrance, CA
. The pendant is set with old mine cut diamonds that total an estimated 3 carats. The larger center set
Category

Early 20th Century Unknown Edwardian Pendant Necklaces

Materials

Diamond, Platinum

Alexander Beverly Hills 9.02ct Diamond White Gold 3-Row Tennis Necklace 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Sensational 3 row diamond tennis necklace. High jewelry by Alexander of Beverly Hills. 9.02 carats
Category

21st Century and Contemporary American Contemporary Multi-Strand Necklaces

Materials

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

Australian Opal and Diamond Pendant and Chain 3 Carat Opal 14 Karat Yellow Gold
By Five Star Jewelry
Located in Austin, TX
pink Diamonds: Round Brilliant Diamonds Diamond Weight: .24 Carats Total Diamond Weight Diamond Color
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Tiffany Co. Large Key with 3 Diamonds
By Tiffany Co.
Located in Bethesda, MD
The Tiffany & Co Large Key with 3 Diamonds is a sophisticated and elegant pendant made of 18th
Category

2010s Pendant Necklaces

Materials

Diamond, White Gold

Italian 18 carat gold rock crystal, yellow sapphire and diamond 1970s necklace
Located in London, GB
diamonds. The necklace consists of approx 3 carats of F, G colour and VS clarity diamonds and 3 oval shaped
Category

Vintage 1970s Italian Modern Beaded Necklaces

Materials

Diamond, Rock Crystal, Yellow Sapphire, 18k Gold

14 Karat Yellow Gold Diamond Pendant featuring 3 different Diamond cuts
Located in Towson, MD
Brilliant and Baguette cut Diamonds. The diamonds total 2.22 carats and are H-I color and VS2-I1 clarity
Category

2010s Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Le Vian 3 Carat White Diamond Pendant Set in 14 Karat Yellow Gold
By Le Vian
Located in Great Neck, NY
Le Vian® Pendant featuring 3 cts. Vanilla Diamonds® set in 14K Honey Gold™ Please feel free to
Category

Early 2000s American Pendant Necklaces

Materials

White Diamond, 14k Gold, Yellow Gold

Sterling Silver 3/8ct Diamond Medallion with Toggle Bale Paperclip Chain Pendant
Located in New York, NY
meticulously crafted medallion pendant that pulsates with 3/8 carats of natural, earth-mined diamonds. Each
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Rhodium, Sterling Silver

Dilimani 3-D Donut Shape Pave Chocolate and White Diamond Gold Pendant
Located in Stamford, CT
Brand new from the chocolate diamond collection of my friends at Dilimani Designs. Beautiful 3-D
Category

21st Century and Contemporary Modern Chain Necklaces

Materials

Brown Diamond, Diamond, 14k Gold

Platinum Art Deco Diamond Pendant Necklace
Located in Bethesda, MD
From the 1930s, this elegant Art Deco pendant necklace has 2.15 carats of diamonds. The platinum
Category

Vintage 1930s American Art Deco Pendant Necklaces

Materials

Diamond, Natural Pearl, Platinum

2 Ct Diamonds Emerald 3 Stone Drop Pendant in 14k White Gold
Located in Miami, FL
link chain. Showcased is 1 princess cut diamond weighing approximately 0.70 carat on top and one round
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

18K White Gold 4.20ct Diamond Round and Asscher Link Necklace ANK-20564
By LB Exclusive
Located in Southampton, PA
24-inch long length of the necklace. The Asscher diamonds weigh 3 carats in total, while the round
Category

21st Century and Contemporary Link Necklaces

Materials

Diamond, 18k Gold, White Gold

3 Carat Diamond Heart Necklace
Located in Miami, FL
Spectacular necklace crafted in platinum, featuring 85 round brilliant and baguette cut diamonds
Category

21st Century and Contemporary Unknown Modern Pendant Necklaces

Materials

Diamond, Platinum

Edwardian 3 Carat Total Diamonds by the Yard Platinum Necklace
Located in Narberth, PA
A beautiful diamond necklace from the Edwardian (ca1910) era! Crafted in platinum, the necklace is
Category

Vintage 1910s Edwardian Link Necklaces

Materials

Diamond, Platinum

30 Carat Oval Brazilian Emerald 3 Carat Diamond Tennis Necklace 14 Karat Gold
Located in New York, NY
Presenting the exquisite 30 Carat Oval Brazilian Emerald & 3 Carat Diamond Tennis Necklace in 14
Category

2010s Link Necklaces

Materials

Diamond, Emerald, 14k Gold

62 Carat Oval Ethiopian Opal and 3 Carat Diamond Pendant/Necklace 14K White Gold
Located in New York, NY
62 Carat Oval Ethiopian Opal & 3 carat Diamond Pendant / Necklace 14 Karat Gold Estate White Gold
Category

2010s Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, White Gold

6.05 Carat Diamond White Gold 3 Prong Set Tennis Necklace 14 Karat
Located in Great Neck Plaza, NY
Brilliant and beautiful. 14 Karat White Gold Round Brilliant Cut Diamond Tennis Necklace set on 3
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

3 Carat Natural Cabochon Drop Emerald Diamond Gold Tubogas Necklace
Located in Bay Harbor Islands, FL
Tubogas necklace with 140 diamonds weighing approximately 2.10 carats, and one cabochon emerald
Category

Vintage 1980s Italian More Necklaces

Materials

Diamond, Emerald, 18k Gold

14K Rose Gold 3/4 Carat Round Diamond Double Quatrefoil Pendant Necklace
Located in New York, NY
Accent your outfits with this exquisite diamond pendant necklace. This geometrically-inspired
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 14k Gold, Rose Gold

8.92 Carat Total Diamond White Gold 3-Prong Tennis Necklace
Located in Chicago, IL
brilliant diamonds that total 8.92 carat total. Each diamond is beautifully & skillfully matched in size
Category

Early 2000s American Contemporary More Necklaces

Materials

White Diamond, 18k Gold, White Gold

3 Carat Diamond by Yard Necklace 18 Karat White Gold 24 Station Chain
Located in New York, NY
3 Carat Diamond by Yard Necklace/ Chain 18 Karat White Gold Chain 36" Length This spectacular
Category

2010s Chain Necklaces

Materials

Diamond, 18k Gold, White Gold

AGS Certified 10k Yellow Gold 1/3 Carat Round Diamond Solitaire Pendant Necklace
Located in New York, NY
Some things shouldn't be reinvented, which is why we created the solitaire diamond necklace. This
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 10k Gold, Yellow Gold

103 Carat Heart Shape Amethyst 3 Ct Diamond Pendant Necklace 14 Kt Yellow Gold
Located in New York, NY
Approximately 103 Carat Heart Shape Amethyst & 3 Ct Diamond Pendant Necklace 14 Kt Yellow Gold
Category

2010s Pendant Necklaces

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

3 Carat Tanzanite and 1 Ct Diamond Pendant or Necklace 14 Karat Yellow Gold
Located in New York, NY
3 Carat Tanzanite and 1 Ct Diamond Pendant or Necklace 14 Karat Yellow Gold Tanzanite Weight
Category

2010s Drop Necklaces

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

10k Yellow Gold 3 Carat Trillion Cut Blue Topaz Diamond Pendant Necklace
Located in Eagan, MN
brilliant cut diamonds to enhance it. The diamonds are 1.25 mm and they total .03 carats. They are all set
Category

21st Century and Contemporary Unknown Art Deco Pendant Necklaces

Materials

Topaz, Blue Topaz, Diamond, 10k Gold, Yellow Gold

5.40 Carat Total 3 Prong Diamond Riviera Necklace in 14 Karat White Gold
Located in Chicago, IL
brilliant cut diamonds are 3-prong set in graduated size with the largest in the middle from end to end in
Category

2010s American Contemporary More Necklaces

Materials

White Diamond, 14k Gold, White Gold

3 Stone Diamond Necklace in Platinum - 0.30ctw GH VS/SI Diamonds, Adjustable
Located in West Hempstead, NY
This elegant 3 Stone Diamond Necklace in platinum features 0.30ctw of natural GH VS/SI round
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Platinum

New 3 Carat Trillion Cut Dominican Larimar Diamond Cut Sapphire Necklace
Located in Eagan, MN
mm. The have a beautiful Asian style top that is covered in diamond cut white sapphire stones. The
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Larimar, Sapphire, Sterling Silver, Silver

Italian Modern 14k White Gold 3-Stone .5 Carat Diamond Necklace with Appraisal
Located in Eagan, MN
. It has 3 brilliant cut diamonds measuring 3.5 x 3.5 x 2.16 mm. The Clarity is SI1 and the Color is H
Category

2010s Italian Art Deco Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Harry Winston 3-Row Bezel Set Diamond Gold Necklace
By Harry Winston
Located in New York, NY
This understated yet grand Harry Winston Diamond 3-Row Riviere Necklace, made in the late XX
Category

Late 20th Century American More Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Graduated Tennis Necklace in with 3-Prong Set Round Diamonds
By Antinori Fine Jewels
Located in Chicago, IL
This stunning and impressive Riviera Necklace features substantial Diamond weight of 25 Carats in
Category

2010s Italian Modern Link Necklaces

Materials

Diamond, White Diamond, White Gold

Graduated Tennis Necklace in with 3-Prong Set Round Diamonds
By Antinori Fine Jewels
Located in Chicago, IL
This stunning and impressive Riviera Necklace features substantial Diamond weight of 25 Carats in
Category

2010s Italian Modern Link Necklaces

Materials

Diamond, White Diamond, White Gold

Cabochon 3 Carat Emerald Pendant Set with Diamonds 1.95 Carats 18K Gold
Located in Punta Gorda, FL
pendant was made from 18K White Gold and set with Diamonds Total Carat Weight is 1.95 Carats Diamonds
Category

Late 20th Century Art Deco Pendant Necklaces

Materials

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

14 Karat White Gold Halo Diamond Pendant 1/3 Carat
Located in San Francisco, CA
This delicate pendant feature one round shaped diamond that is approximately 0.25-carat total
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, White Gold

Yellow Gold Ruby Diamond Pendant Necklace 18 3/4" - 14k Oval .75ctw
Located in Greensboro, NC
Cut: Oval Color: Pinkish Red Natural Diamonds Carat(s): .15ctw Cut: Round Brilliant Color: F - G
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Red Garnet Pendant 3 Carat Set with Diamond 18k Yellow Gold
Located in Punta Gorda, FL
It comes with the appraisal by GIA GG/AJP Red Garnet = 3 Carat Cut: Emerald Color: Vivid Deep Red
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Garnet, Gold, 18k Gold, Yellow Gold

Diamond and Ruby Pendant, VS Quality 3-Sided Pave Diamonds .80 Carat Tcw
Located in Laguna Hills, CA
Diamond Encrusted 3-Sided Ruby Pendant, VS Quality. Solid back and durable quality. Excellent set
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Sterling Silver Diamond Bow Necklace 18 3/4" - 925 Single Cut .16ctw Ribbon
Located in Greensboro, NC
Color: G - H Clarity: SI1 - SI2 Total Carats: .16ctw Chain Style: Diamond Cut Cable Necklace Style
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sterling Silver

Magnificent 107 Carat Diamond 3 Layer 18K Gold Art Deco Style Draping Necklace
Located in Tustin, CA
opera length diamond necklace is no exception. This show-stopping, very classy necklace consists of
Category

21st Century and Contemporary American Art Deco Multi-Strand Necklaces

Materials

Diamond, 18k Gold, White Gold

3-Row Pearl and Diamond 18 Carat Gold Choker
Located in London, GB
and solid 18 carat yellow gold handmade bars box set with 36 brilliant cut diamonds weighing
Category

1990s Unknown Romantic Choker Necklaces

Materials

Diamond, Pearl, 18k Gold

Sterling Diamond Three-Stone Journey Necklace 17 3/4" 925 Gold Plated Rnd .10ctw
Located in Greensboro, NC
Metal Content: Sterling Silver (gold plated) Stone Information Natural Diamonds Carat(s): .10ctw
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Gold Plate, Sterling Silver

3 Carat Cushion Cut Ruby Pendant with Diamonds 14 Karat Yellow Gold Chain
Located in New York, NY
Approximately 3 to 3.5 Carat Cushion Cut Ruby Pendant or Necklace 14 Karat Yellow Gold with Chain
Category

2010s Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Natural Tanzanite Diamond Pendant Total Weight 3 Carats 14k White Gold
Located in Punta Gorda, FL
: Oval Diamonds = 0.30 Carats ( Color: H, Clarity: SI ) Metal: 14K White Gold Height: 6 mm Width: 11 mm
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, White Gold

3 Carat Emerald Cut Emerald Pendant or Necklace 14 Karat White Gold with Chain
Located in New York, NY
Approximately 3 to 3.5 Carat Emerald Cut Emerald Pendant / Necklace 14 Karat White Gold With Chain
Category

2010s Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

14k White Gold 1.5 Carat 3-cut Diamond Pendant With Appraisal
Located in Eagan, MN
What a beautiful pendant! It has 3 different cuts of diamonds in it. I just love it! It is pre
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

3.6 Ct Diamond 3 Heart Pendant or Necklace 18 K White Gold with 14 K Gold Chain
Located in New York, NY
3.6 Ct Diamond Heart Pendant/ Necklace 18 Karat White Gold With 14 K Gold Chain Diamond Weight
Category

2010s Drop Necklaces

Materials

Diamond, White Gold, 18k Gold

3 Carat Cushion Cut Ruby Pendant with Diamonds 14 Karat Yellow Gold Chain
Located in New York, NY
Approximately 3 to 3.5 Carat Cushion Cut Ruby Pendant or Necklace 14 Karat Yellow Gold with Chain
Category

2010s Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

GIA Certified 3/4 Carat Asscher Cut Platinum Pendant
By Lili Jewelry
Located in New York, NY
3/4 ct Diamond set in 4 prong low basket. 18" platinum chain with a safety lock. Diamond GIA
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Platinum

3 Carat Diamond Bow Platinum Necklace
Located in St. Louis Park, MN
This is an amazing necklace for an amazing person! This Platinum, 3 carat diamond necklace is
Category

20th Century Unknown Drop Necklaces

Materials

Diamond, Platinum

Platinum Diamond 3-Circle Handmade Pendant Necklace
Located in Boca Raton, FL
Platinum Diamond 3-Circle Handmade Pendant Necklace. Round Brilliant Cut Diamonds weighing 2.02
Category

2010s Pendant Necklaces

Materials

Diamond, Platinum

Italian 18 Karat Yellow Gold 3 Carat Diamond Collar Necklace
Located in Dallas, TX
Straight from Italy's finest craftsmanship, comes this elegant and breathtaking collar necklace
Category

Late 20th Century Italian Modern Choker Necklaces

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Fine Diamond Heart Necklace, 3, 92 CTS
Located in New York, NY
Fine diamond heart necklace featuring 87 high quality diamonds, weighing 3.92 carats, extended on
Category

21st Century and Contemporary More Necklaces

Materials

Diamond, White Gold

Kwiat Platinum Round Diamond 3-Prong Solitaire Necklace
By Kwiat
Located in Columbia, MO
Total Carat Weight (TCW) - 0.33 ct Style - Solitaire Necklace Fastening - Lobster Clasp Length (inches
Category

2010s Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

Art Deco Pendant Necklace with 20+ Carat Diamonds Can Be Worn as 3 Bracelets
Located in Antwerp, BE
attachable ring that connects the pendant with the necklace: 13 single brilliant cut diamonds (also called 8
Category

Vintage 1920s Belgian Art Deco Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

BUCCELLATI Gold Diamond 3-Chain Necklace
By Buccellati
Located in Greenwich, CT
18k white gold, the diamonds weighing approximately 1.28 total carats, with an 18k yellow and white
Category

21st Century and Contemporary Italian Multi-Strand Necklaces

Materials

Diamond, 18k Gold, White 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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