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Van Cleef Arpels Vintage Alhambra 20 Motif Necklace in 18K Rose Gold
By Van Cleef Arpels
Located in Chevy Chase, MD
An impossible to find Van Cleef & Arpels Vintage Alhambra Necklace! This necklace features 120
Category

21st Century and Contemporary French Retro Chain Necklaces

Materials

Diamond, Natural Pearl, 18k Gold, Rose Gold

GIA Certified 20 Carat Fancy Yellow Diamond Pendant in 18K Gold
By Antinori Fine Jewels
Located in Chicago, IL
unforgettable as the moments it symbolizes. Carat Weight: 20.02 carats Shape: Heart Modified Brilliant — the
Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

SPECIAL DEAL, 9.52 Cts Round Natural Diamond Tennis Necklace 14K White Gold 20
Located in Great Neck Plaza, NY
classic four-prong setting, the necklace maximizes light reflection for an incredible shine. Carat Weight
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

Vintage 20 Pointer White Diamond Necklace 14 Karat Yellow Gold, 18 Inch Long
Located in New York, NY
Vintage 20 Pointer White Diamond Necklace 14 Karat Yellow Gold, 18 Inch Long 20 pointer solitaire
Category

2010s Drop Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

Yellow Gold Diamond Heart Cluster Halo Necklace 20 1/4" - 14k Princess 1.30ctw
Located in Greensboro, NC
Metal Content: 14k Yellow Gold Stone Information Natural Diamonds Carat(s): 1.30ctw Cut: Princess
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

IGI Certified 1.50 Ct Heart Shape Diamond Necklace with 20 Carat Black Diamonds
Located in New York, NY
14k white gold. The necklace is designed with 230 natural black briolette diamonds 20 Carat total
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

20 Carat SI Clarity HI Color Marquise Pear Diamond Necklace 14 Karat White Gold
Located in Diera, Dubai
20 Carat SI Clarity HI Color Marquise Pear Diamond Necklace 14 Karat White Gold This breathtaking
Category

21st Century and Contemporary American Modern Multi-Strand Necklaces

Materials

Diamond, Gold, White Gold, 14k Gold

20 Carat SI Clarity HI Color Marquise Pear Diamond Necklace 18 Karat White Gold
Located in Diera, Dubai
20 Carat SI Clarity HI Color Marquise Pear Diamond Necklace 18 Karat White Gold This breathtaking
Category

21st Century and Contemporary American Modern Multi-Strand Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

10k Yellow Gold 1.36 Carat Diamond Pendant On 10K Yellow Gold 20" Italian Chain
Located in Eagan, MN
Maker's Mark which I can't make out. It is on an 10k Gold Italian Chain that is 20 Inches long and is
Category

2010s Unknown Art Deco Pendant Necklaces

Materials

Diamond, 10k Gold, Yellow Gold

2119 carats Genuine Natural Peridot String Necklace natural peridot 20 line 40
Located in Yorba Linda, CA
2119 carats Genuine Natural Peridot String Necklace natural peridot 20 line 40 inches long with
Category

2010s Indian Multi-Strand Necklaces

Materials

Peridot, 14k Gold

2119 carats Genuine Natural Peridot String Necklace natural peridot 20 line 40
Located in Yorba Linda, CA
2119 carats Genuine Natural Peridot String Necklace natural peridot 20 line 40 inches long with
Category

2010s Indian Multi-Strand Necklaces

Materials

Peridot, 14k Gold

2.90 Carats Pear Shape Tourmaline and Diamond Halo Pendant 20 Karat Rose Gold
Located in Scottsdale, AZ
note this listing is for the pendant only. No necklace or cord is included. Metal: 20K Rose Gold
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, Tourmaline, Gold, 18k Gold, Rose Gold

Certified Imperial Jade 20 Carats, Pink Tourmaline Diamond Goldfish Pendant.
Located in Hong Kong, HK
. The pendant is set in 18k white gold with one heart shaped pink tourmaline 0.51cts and one round
Category

2010s Hong Kong Pendant Necklaces

Materials

Coral, Diamond, White Diamond, Jade, Tourmaline, Gold, 18k Gold, White Gold

Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround
Located in North Hollywood, CA
this stone up for me to make something out of. This necklace is a drop style with a 1.50 carat round
Category

2010s Brazilian Modern Drop Necklaces

Materials

Citrine, White Diamond, 18k Gold

Huge Maderia Mixed Cut Citrine 20 Plus Carat Diamond Surround
Located in North Hollywood, CA
This gorgeous mixed cut Madeira Citrine is huge and beautiful. This necklace is a drop style with
Category

2010s Brazilian Modern Drop Necklaces

Materials

Citrine, White Diamond, 18k Gold

Antique Amethyst Citrine and Turquoise 20K Yellow Gold Drop Necklace
Located in Jesmond, Newcastle Upon Tyne
turquoise, 20 carat yellow gold drop necklace; part of our diverse gemstone jewellery collections. This
Category

Antique 19th Century Unknown Victorian Drop Necklaces

Materials

Amethyst, Citrine, Turquoise, Yellow Gold

20 Carat Australian Opal Diamond Necklace 14k Yellow Gold
Located in Barnsley, GB
Yellows Greens and will sure impress anyone as a gift too with this 20ct 25 x 10 x 3mm 20 carats
Category

21st Century and Contemporary Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

20+ Carat Blue Sapphire T Necklace in 18k Gold
By Nancy Phillips
Located in Eugene, OR
This stunning necklace is made of over 200 pieces of two different size blue sapphires matched in
Category

2010s Thai Modern Drop Necklaces

Materials

Blue Sapphire, 18k Gold

14k White Gold Tennis Necklace. 20 Carats F-G Color Vs Clarity, 20 Inches
Located in Los Angeles, CA
. Metal: 14k Gold Diamond Cut: Round Natural (Not Lab Grown or Moissanite) Total Diamond Carats: 20
Category

2010s American Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

Victorian Opal Diamond Necklace 20 Carat Opal 5 Carat Diamond 18 Carat Gold
Located in Lancaster , GB
An extraordinary Antique Victorian lavaliere necklace showcasing a fabulous star-shaped pendant
Category

Antique Early 1900s British Victorian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

5 Carat Round Natural Diamond Tennis Necklace, 20 inches
Located in Los Angeles, CA
necklace. Metal: 14k Gold Diamond Cut: Round Total Approx. Diamond Carats: 5ct Diamond Clarity: VS
Category

2010s American More Necklaces

Materials

Diamond, 14k Gold, White Gold

20 Inches 14k White Gold 0.75 Carat Round Diamonds Heart Necklace
Located in Los Angeles, CA
Cut: Round Total Diamond Carats: 0.75 Carats Diamond Clarity: VS Diamond Color: F Necklace Length: 20
Category

2010s North American Pendant Necklaces

Materials

Diamond, White Gold

14k White Gold Tennis Necklace, 20 Carats F-G Color Vs Clarity
Located in Los Angeles, CA
. Metal: 14k Gold Diamond Cut: Round Natural (Not Lab Grown or Moissanite) Total Diamond Carats: 20
Category

2010s American Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

20 Inch 14k Rose Gold 0.40 Carat Round Cut Diamond Solitaire Pendant Necklace
Located in Los Angeles, CA
) Diamond Clarity: VS Diamond Color: F Color: White Gold Necklace Length: 20 Inches Included with your order
Category

2010s North American Pendant Necklaces

Materials

Diamond, Rose Gold

20 Inch 14k Yellow Gold 0.90 Carat Round Cut Diamond Solitaire Pendant Necklace
Located in Los Angeles, CA
) Diamond Clarity: VS Diamond Color: F Color: White Gold Necklace Length: 20 Inches Included with your order
Category

2010s North American Pendant Necklaces

Materials

Diamond, Yellow Gold

20 Inch 14k White Gold 0.90 Carat Round Cut Diamond Solitaire Pendant Necklace
Located in Los Angeles, CA
) Diamond Clarity: VS Diamond Color: F-G Color: White Gold Necklace Length: 20 Inches Included with your
Category

2010s North American Pendant Necklaces

Materials

Diamond, White Gold

14k White Gold Tennis Necklace. 20 Carats F-G Color Vs Clarity, 18 Inches
Located in Los Angeles, CA
. Metal: 14k Gold Diamond Cut: Round Natural (Not Lab Grown or Moissanite) Total Diamond Carats: 20
Category

2010s American Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

14k White Gold Tennis Necklace. 20 Carats F-G Color Vs Clarity, 22 Inches
Located in Los Angeles, CA
. Metal: 14k Gold Diamond Cut: Round Natural (Not Lab Grown or Moissanite) Total Diamond Carats: 20
Category

2010s American Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

Cleopatra 20 carat Garnet Blue Topaz Snake Branch Necklace-Sterling Silver Gold
Located in West Palm Beach, FL
Sterling Silver/ Gold Wash Double Snake Necklace with 17.52 carats total of 2mm each round Garnets and 4
Category

20th Century Art Deco Drop Necklaces

Materials

Garnet, Topaz

20 Inch 14k White Gold 2 Carat Diamond by the Yard Round-Cut Bezel Necklace
Located in Los Angeles, CA
Gold Number of Diamonds: Eight Gold Color: White Gold Carat: 2 Carat Necklace Length: 20 Inches Diamond
Category

2010s North American Chain Necklaces

Materials

Diamond, White Gold

20 Inch 14k Yellow Gold 1.5 Carat Diamond by the Yard Round-Cut Bezel Necklace
Located in Los Angeles, CA
Gold Number of Diamonds: Eight Gold Color: Yellow Gold Carat: 1.5 Carat Necklace Length: 20 Inches
Category

2010s North American Chain Necklaces

Materials

Diamond, Yellow 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

20 Carat Natural Untreated Diamond Tennis Necklace 18 Carat White Gold
By Antinori Fine Jewels
Located in Chicago, IL
set in a 18 carat white gold riviera or tennis style necklace. The insertion clasp has a double push
Category

2010s Italian Modern Chain Necklaces

Materials

Diamond, 18k Gold

White Gold 20 Carat Diamond Tennis Line Necklace
Located in Baltimore, MD
White Gold 20 Carat Diamond Tennis Line Necklace Metal: 14k white gold Diamonds: 136 round
Category

21st Century and Contemporary American Modern Drop Necklaces

Materials

Diamond, White Gold

18K White Gold 20 Carat Diamond Collar Necklace
Located in New York, NY
Comes to us from our estate collection this lovely collar necklace is crafted in 18k white gold
Category

20th Century Unknown Modern Link Necklaces

Materials

Diamond, White Gold

Chocolate Diamond Beaded Sautoir Necklace 49 Carat 20 Karat Gold
By Pamela Farland
Located in New York, NY
gold chain. The necklace measures 34" and can be worn long or doubled over.
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Diamond, Gold, Yellow Gold

20 Carat Rose Gold Round and Baguette Diamond Necklace
Located in Addison, TX
Brand New 10 karat rose gold baguette and round diamond chain. Carat Weight: 20 carats Color
Category

2010s Unknown Modern Chain Necklaces

Materials

Diamond, 10k Gold, Rose Gold

8.90 Carat Round Diamond 14 Karat Yellow Gold Tennis Necklace 20
Located in Great Neck Plaza, NY
Elegantly simple 14 Karat Yellow Gold Round Brilliant Cut Natural Diamond Tennis Necklace set on 4
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

1950s 20 Carat Amethyst and 1 Carat Diamond 14 Karat Gold Necklace
Located in Hicksville, NY
1950s Retro 20 Carat Amethyst, Diamond and 14 Karat White Gold Necklace. Features a 20 Carat
Category

Mid-20th Century Unknown Retro Pendant Necklaces

Materials

Amethyst, Diamond, 14k Gold, White Gold

20 Carat Emerald Riviere Necklace Set in 18 Karat Gold
Located in Brisbane City, QLD
incredible riviere. Marked - '18K' for gold purity Measures - 43.5cm Total stone weight - 20 carat Total
Category

20th Century Modern Link Necklaces

Materials

Emerald, Gold, 18k Gold, Yellow Gold

18K Yellow Gold 20 Carat Graduated Tool Links Diamond Necklace
Located in New York, NY
This is an unsigned diamond link necklace, crafted in 18k yellow gold. It is elegantly subversive
Category

20th Century American Modern Chain Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

18k White Gold 20 Carat Round Cut Diamond Tennis Necklace
Located in New York, NY
18K White Gold 20 Carat Round Cut Diamond Estate Tennis Riviera mounted with over 200 round
Category

20th Century Unknown Modern Choker Necklaces

Materials

Diamond, 18k Gold, White Gold

Effy .20 Carat Bezel Set Diamond Yellow Gold Pendant Drop Necklace
By Effy
Located in Baltimore, MD
Effy .20 Carat Bezel Set Diamond Yellow Gold Pendant Drop Necklace Metal: 14k yellow gold Weight
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Yellow Gold

6.06 Carat Round Brilliant Cut Diamond Tennis Necklace 14 Karat White Gold 20
Located in Great Neck Plaza, NY
Brilliant and beautiful tennis necklace, natural round-brilliant cut white diamonds clean and
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

10K Yellow Gold Plated Sterling Silver 1/20 Carat Diamond Heart Pendant Necklace
Located in New York, NY
is crafted of ten-karats yellow gold, and the ribbon accent is made of sterling silver. It is
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, Gold Plate, Yellow Gold, Sterling Silver, 10k Gold

20 Carat CZ Riviera Tennis Necklace 14 Karat
Located in New York, NY
20ct CZ Eternity Riviera Necklace 14kt. Yellow gold 27.6 grams 15 inches wearable length
Category

2010s American Link Necklaces

Materials

14k Gold, Yellow Gold

Diamond Pendant Necklace, Round Brilliant Diamond .20 Carat or 1/5 th Carat
By Five Star Jewelry
Located in Austin, TX
This 18K white gold diamond pendant is simple but elegant. It has a full cut diamond that is .20
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Maharaja 20 Carat Fancy Cut Diamond Necklace Pendant
By Mehnaz Durrani
Located in Richmond, BC
Maharaja inspired, diamond necklace. Handcrafted contemporary fancy cut, tabular cut 20 carats
Category

21st Century and Contemporary Canadian Contemporary Pendant Necklaces

Materials

Diamond, Gold Plate, Silver

Diamond Cluster Tennis Necklace 20 Carats 14 Karat White Gold 47 Grams
By Harbor Diamonds
Located in New York, NY
14 Karat White Gold tennis necklace featuring 52 clusters weighing approximately 20 carats. Color H
Category

2010s American Contemporary Link Necklaces

Materials

Diamond, 14k Gold, White Gold

Clear Necklace Set in 20 Karat Yellow Gold with 330.01 Carat Crystal
By Coomi
Located in Secaucus, NJ
Affinity Necklace Set in 20 Karat Yellow Gold with 330.01 Carat Crystal and 1.00 Carat Diamonds
Category

21st Century and Contemporary Thai Modern Link Necklaces

Materials

Crystal, Yellow Gold

Tiffany Co. 18 Karat White Gold .20 Carat Diamond Heart Pendant Necklace
By Tiffany Co.
Located in Baltimore, MD
Tiffany & Co. 18 Karat White Gold .20 Carat Natural Diamond Heart Pendant Necklace Metal: 18 Karat
Category

21st Century and Contemporary American Modern Choker Necklaces

Materials

Diamond, White Gold

Black Diamond Beads in yellow gold 20 Karat gold Necklace
By Pamela Farland
Located in New York, NY
Delicate and bright 18 inch black diamond bead necklace on 20 karat gold, elegant and easy to wear
Category

21st Century and Contemporary American Artisan Beaded Necklaces

Materials

Black Diamond, Gold

.20 Carat Natural Diamonds Station Yard Link Necklace 14 Karat Ball Bead
Located in New York, NY
Clarity. H-color 14kt. yellow gold. Necklace: 24 inches. 3.6 grams.
Category

2010s American Link Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Art Nouveau Antique 20 Carat Aquamarine Diamond Gold Pendant
Located in Chicago, IL
Circa 1910s An antique 14K greenish-yellow pendant features a large oval natural aquamarine. The aquamarine is set in an openwork scrolling foliage motif frame embellished with old ...
Category

Early 20th Century Art Nouveau Drop Necklaces

Materials

Aquamarine

AGL Certified 20 Carat Colombian Emerald Minor Oil in 14k Gold Bezel Set Pendant
By Gad Co.
Located in Miami, FL
valuable considering its massive 20-carat weight. A piece that's certain to turn heads and cause a
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, White Diamond, Emerald, Gold, 14k Gold, Yellow Gold

Semi-Mount Halo Pendant, 14 Karat White Gold for Center Diamonds .20 Carat
Located in Greensboro, NC
diamond or gemstone of your choice! This halo-style piece is composed of glistening 14k white gold and is
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

AGL Certified Minor 20 Ct Colombian Emerald 5 Ct Diamond Pendent/Necklace 14K
Located in New York, NY
AGL Certified Minor 20 Ct Colombian Emerald & 5 Ct Diamond Pendent/Necklace 14K 20 Carat Colombian
Category

20th Century Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, Gold

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20 Carat Gold Necklace For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 20 carat gold necklace for your needs in our varied inventory. Frequently made of Gold, 18k Gold and Yellow Gold, this item was constructed with great care. Our collection of these items for sale includes 1289 vintage editions and 304 modern creations to choose from as well. Finding the perfect 20 carat gold necklace may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a 20 carat gold necklace has been a part of the legacy of many jewelers, but those produced by Luigi Ferrara, LB Exclusive and Bulgari are consistently popular. While most can agree that any 20 carat gold necklace from our collection can easily elevate most outfits, but the choice of a Diamond version from the 1233 available is guaranteed to add a special touch to your ensemble. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and pear cut alternatives. There aren’t many items for men if you’re seeking a 20 carat gold necklace, as most of the options available are for women and unisex.

How Much is a 20 Carat Gold Necklace?

Prices for a 20 carat gold necklace can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $200 and can go as high as $1,000,000, while this accessory, on average, fetches $4,610.

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 20 Carat Gold Necklace
  • 1stDibs ExpertApril 5, 2022
    The term “20 carat gold” does not have a meaning. “Carat” is a unit of measurement used to describe the size of gemstones. “Karat” is the unit used to describe gold precious metal. Gold stamped as 20 karat or 20K is 83.3 percent pure gold and 16.7 percent metal alloy. You'll find a wide variety of gemstone jewelry on 1stDibs.

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If jewelry could talk, we know this piece would have good stories.

A Centuries-Old Style, Lockets Have Never Lost Their Romantic Appeal

Emblems of heartfelt emotion, elegant vessels for photos and keepsakes and perfect for layering, these special ornaments are an essential component of any thoughtfully curated jewelry collection.

This Van Cleef & Arpels Necklace Is an Heirloom in the Making

With more than 100 carats of diamonds, this vintage stunner converts into different styles, making it as versatile as it is breathtaking.

[Survey] Two-Thirds of Jewelry Gift Recipients Don’t Want to Be Surprised

Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.

Next-Level Pearls That Go Well Beyond the Expected

Organic shapes, surprising textures, shimmering colors and inventive embellishments take the new generation of pearl jewelry from classic to cutting-edge.

7 Vibrant Jewels for a Breezy Late-Summer Wardrobe

Soak up the pleasures of the season with a these bold gems.

Whether Worn Alone or Layered, These Chain Link Necklaces Are Trending

Learn more about the stylish links that have passed the test of time.

Meet the Dapper, Mustachioed Parisian Who’s Tops in Crafting Enticing Jewels

After more than a decade creating the iconic Lanvin gems of the Alber Elbaz years, designer Elie Top dove into the world of fine jewelry, mixing silver and gold to create his own striking, timeless look.