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Double-sided pendant with natural Australian Boulder 18K Opal Gold Necklace
Located in Berlin, DE
Double-sided necklace with natural Australian Boulder Opal in 18K yellow gold gemstone origin
Category

2010s German Artisan Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

Convertible Necklace Faced Opal Malaquite Natural Pearls Tourmaline 18 k Gold
By Giulia Colussi
Located in Milan, IT
Convertible Necklace Faced Opal Malaquite Natural Pearls Tourmaline 18 k Gold gr You can ware this
Category

2010s Italian Artisan Chain Necklaces

Materials

Malachite, Opal, Natural Pearl, Tourmaline, 18k Gold

18K White Gold Opal and Diamond Necklace
Located in Great Neck Plaza, NY
in luxurious 18K white gold, this piece showcases a luminous elongated opal drop—alive with brilliant
Category

Vintage 1980s Drop Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

18K Yellow Gold Pink Opal Heart Necklace
Located in София, BG
Soft, romantic, and effortlessly sophisticated—this 18 karat yellow gold necklace by Antonio Gems
Category

21st Century and Contemporary Bulgarian Modern Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Opal Necklace, 18K Yellow Gold Pendant, 9.7gr
Located in Laguna Beach, CA
Ethiopian opal pendant necklace. The pendant setting is stamped 18k and weighs 8.8 grams gross
Category

20th Century Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

18k Gold Short Necklace with Opal Beads Australian Boulder Opal Pendant
By Angelina Fine Jewelry
Located in Amsterdam, NH
A lovely and intriguing necklace with a mesmerising natural Australian black opal pendant strung on
Category

2010s Dutch Artisan Beaded Necklaces

Materials

Opal, Black Opal, 18k Gold

Pink Opal Diamond 18k Yellow Gold Necklace
Located in Beverly Hills, CA
This elegant pendant necklace features a captivating 29.85 carat oval shape opal, exuding a soft
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Ethiopian Opal Necklace 18K Gold - by Bombyx House
Located in Westport, CT
Extension Opal 8mm - 3mm, From Ethiopia 18K Gold Hook Closure, From US Handmade in Westport CT. US Free
Category

2010s American Artisan Beaded Necklaces

Materials

Opal, 18k Gold

Boulder Opal Sapphire Pendant. 18k White Gold Opal Diamond Sapphire Necklace.
Located in Port Charlotte, FL
Sapphires Stunning for any occasion. 18k 750 White Gold pendant, Chain Necklace is 18k White Gold
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

BUNDA Hollywood Opal Pendant, 2.41ct Opal, 0.09ct Diamonds, 18k gold
Located in SYDNEY, AU
A BUNDA 'Hollywood' pendant in 18ct yellow and white gold, featuring a Boulder Opal, bezel set and
Category

2010s Australian Necklace Enhancers

Materials

Diamond, Opal, 18k Gold

Phoenix Fire Opal Diamond Necklace 18K Yellow Gold
Located in Suwanee, GA
Phoenix Fire Opal Diamond Necklace 18K Yellow Gold. Free Domestic USPS First Class Shipping! Free
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Fire Opal, 18k Gold, Yellow Gold, Gold

Australian Lightning Ridge 18K Gold Diamond Opal Necklace
Located in GOES, NL
Large sparkling graduated Australian lightning ridge opal necklace, methiciously hand knotted on
Category

2010s Australian Modern Beaded Necklaces

Materials

Diamond, Opal, Yellow Gold, 18k Gold

Vintage Carved Opal 4.80ct Ruby and Diamond Necklace in 18k Yellow Gold
Located in Jesmond, Newcastle Upon Tyne
, fine and impressive vintage opal necklace has been crafted in 18k yellow gold. The feature drop of
Category

Vintage 1950s European Art Nouveau Pendant Necklaces

Materials

Ruby, Opal, Diamond, Yellow Gold, 18k Gold

Opal 18K Gold Italian Mesh Chain Surrealist Pendant Necklace
By Rossella Ugolini
Located in Rome, IT
. Suspended from the necklace is a beautiful triangular flat opal, nestled within an 18K yellow gold bezel
Category

2010s Italian Modern Drop Necklaces

Materials

Opal, Yellow Gold, Gold, 18k Gold

18K White Gold Diamond and Carved Opal Butterfly Necklace
Located in Great Neck Plaza, NY
A breathtaking vintage necklace featuring a meticulously carved butterfly from natural opal
Category

Vintage 1980s Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

Minimalist Australian Boulder Opal Necklace 18K Yellow Gold
Located in Suwanee, GA
Minimalist Australian Boulder Opal Necklace 18K Yellow Gold. Free Domestic USPS First Class
Category

2010s American Arts and Crafts Chain Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold

18k Gold Short Pink Boulder Opal and Diamond Necklace
By Angelina Fine Jewelry
Located in Amsterdam, NH
A feminine, elegant and understated 18k gold short necklace with a soft pink Australian boulder
Category

2010s Dutch Artisan Pendant Necklaces

Materials

Opal, Diamond, 18k Gold

Exquisite Opal and Diamond Necklace in 18k White Gold
Located in Bloomington, MN
Exquisite Opal and Diamond Necklace in 18k White Gold This splendid piece of jewelry is an
Category

21st Century and Contemporary Contemporary Chain Necklaces

Materials

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

18K Opalized Wood Pearl Pendant Necklace
Located in Beverly Hills, CA
set in 18-karat yellow gold. The pendant, measuring 2.25 inches in length and 2 inches in width
Category

2010s Unknown Modern Pendant Necklaces

Materials

Opal, Pearl, Black Pearl, Gold, 18k Gold, Yellow Gold

Gem Quality Black Opal Necklace Pendant 18K Yellow Gold Oval Cabochon
Located in Dearborn, MI
Gem Quality Black Opal Necklace Pendant 18K Yellow Gold Features a Gem Quality 13 x 7mm Oval
Category

2010s Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold, Yellow Gold

Syna Yellow Gold Boulder Opal Necklace with Diamonds
By Syna Jewels
Located in Fort Lee, NJ
Created in 18 karat yellow gold Boulder Opal 3.20 carats approx. Diamonds 0.10 carat approx. 18
Category

2010s Thai Contemporary Necklace Enhancers

Materials

Diamond, Opal, 18k Gold, Yellow Gold

9.95 ct Natural Opal Pendant Necklace in 18k Yellow Gold
Located in La Jolla, CA
9.95 ct Natural Opal Pendant Necklace in 18k Yellow Gold Natural Opal Pendant Necklace features
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Opal, 14k Gold, 18k Gold, Yellow Gold

Giant Pink Opal Ruby and Sapphire 18K Gold Statement Necklace
Located in GOES, NL
with vibrant hues orange and yellow color that light up the opals • Ruby • 18k Solid Gold clasp In old
Category

2010s Peruvian Modern Beaded Necklaces

Materials

Opal, Ruby, Sapphire, 18k Gold

5.09ctw Australian Natural Black Opal Pendant Necklace 18k White Gold
Located in Houston, TX
This beautiful pendant features a natural 5.09ctw natural black opal set in 18 karat white gold on
Category

21st Century and Contemporary Australian Modern Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold, White Gold

Syna Yellow Gold Opal Cluster Necklace with Diamonds
By Syna Jewels
Located in Fort Lee, NJ
Created in 18 karat yellow gold Opal 2 carats approx. Diamonds 0.50 carat approx. 18 inch length
Category

2010s American Contemporary Necklace Enhancers

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Minimalist Australian Boulder Opal Necklace Pendant 18K Yellow Gold
Located in Suwanee, GA
Minimalist Australian Boulder Opal Necklace Pendant 18K Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold

Riethmann 18K Two Tone Gold and Black Opal Necklace #17823
Located in Washington Depot, CT
Riethmann 18K Two Tone Gold and Black Opal Necklace- This stunning necklace features one black
Category

20th Century Pendant Necklaces

Materials

Black Opal, 18k Gold, White Gold, Yellow Gold

Genuine Blush Pink Peruvian Opal Diamond 18K Yellow Gold Necklace
Located in GOES, NL
Discover the enchanting beauty of our blossom-rose Peruvian opal necklace, a piece that radiates
Category

Late 20th Century Peruvian Modern Beaded Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural 3.55ct Australian Opal Pear Cabochon 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Australian Cooper Pedy White Opal 18k Yellow Gold Solitaire Pendant Necklace. 3.55 Carat
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

Opal Rose Necklace with Diamond Center in 18K Yellow Gold
Located in Westport, CT
. Maegelle is not just a name—it’s a legacy of love, beauty, and brilliance. Details: • 18K Gold: 1.83 g
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural 5.47ct Australian Opal Oval Cabochon 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Australian Cooper Pedy White Opal 18k Yellow Gold Solitaire Pendant Necklace. 5.47 Carat
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

Edwardian Opal Diamond Platinum 18K Gold Garland Antique Pendant Necklace
Located in Philadelphia, PA
and 18 karat gold Chain tests as 14 karat gold Circa: 1910 Pendant Measures: 2 7/8 x 1 5/16 inch Chain
Category

Vintage 1910s Edwardian Pendant Necklaces

Materials

Diamond, Opal, Gold, 18k Gold, White Gold, Platinum

Natural 2.76ct Australian Opal Pear Cabochon 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Australian Cooper Pedy White Opal 18k Yellow Gold Solitaire Pendant Necklace. 2.76 Carat
Category

21st Century and Contemporary Pendant Necklaces

Materials

Opal, Gold, 18k Gold, Yellow Gold

15 Carat Australian Boulder Opal Diamond 18k Yellow Gold Necklace
Located in Beverly Hills, CA
A captivating link necklace showcasing a stunning Australian opal as its centerpiece. The opal
Category

21st Century and Contemporary American Contemporary Link Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Australian Black Opal Necklace Trapezoid Shaped Pendant 18k Yellow Gold
Located in Suwanee, GA
Australian Black Opal Necklace Trapezoid Shaped Pendant 18k Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Opal, Black Opal, Diamond, Pearl, 18k Gold, Yellow Gold, Gold

18K Yellow Gold Opal and Pink Spinel Bead Necklace
By Syna Jewels
Located in Virginia Beach, VA
This stunning 18k yellow gold necklace is the epitome of elegance and vibrant beauty. Featuring a
Category

2010s American Artisan Beaded Necklaces

Materials

Opal, Spinel, Yellow Gold

Minimalist Oval Shaped Australian Solid Opal Necklace 18K Yellow Gold
Located in Suwanee, GA
Minimalist Oval Shaped Australian Opal Necklace 18K Yellow Gold. Free Domestic USPS First Class
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold

Duo Ethiopian Opal Diamond Pendant Antique Style 18K Yellow Gold Necklace
By Unbranded
Located in Oakton, VA
A beautiful antique inspired 18k gold pendant necklace, featuring a pear and an oval shaped yellow
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Red Devil - Rare Fire Opal Diamond Pendant Necklace 18K Yellow Gold
Located in Suwanee, GA
Red Devil - Rare Fire Opal Diamond Pendant Necklace 18K Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Fire Opal, Yellow Gold, 18k Gold, Gold

Edwardian Style 15.39 Ethiopian Opal Diamond 18K White Gold Vintage Necklace
By Unbranded
Located in Oakton, VA
As absolutely fabulous and unique opal and diamond pendant necklace! The pendant features an oval
Category

21st Century and Contemporary Edwardian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

Stylish Five Charms Mexican Fire Opal Diamond Necklace 18K Yellow Gold
Located in Suwanee, GA
Stylish Five Charms Mexican Fire Opal Diamond Necklace 18K Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Fire Opal, Opal, Yellow Gold, 18k Gold

18k Yellow Gold Pear Opal Diamond Teardrop Pendant Adjustable Chain Necklace
Located in Montclair, NJ
Brilliant White Diamonds - 0.20ctw (exact) Total Carat Weight: 1.66 (exact) Material: Solid 18k Yellow Gold
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Fire Opal, Gold, 18k Gold, Yellow Gold

Red Mexican Fire Opal, Diamond Tsavorite Pendant Necklace 18K Yellow Gold
Located in Suwanee, GA
Red Mexican Fire Opal, Diamond Tsavorite Pendant Necklace 18K Yellow Gold. Free Domestic USPS
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Tsavorite, Fire Opal, 18k Gold, Yellow Gold

Elegant Mexican Fire Opal, Diamond Tsavorite Pendant Necklace 18K Yellow Gold
Located in Suwanee, GA
Elegant Mexican Fire Opal, Diamond Tsavorite Pendant Necklace 18K Yellow Gold. Free Domestic USPS
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Fire Opal, Tsavorite, 18k Gold, Yellow Gold

Minimalist Oval Shaped Australian Triplet Opal Necklace 18K Yellow Gold
Located in Suwanee, GA
Minimalist Oval Shaped Australian Triplet Opal Necklace 18K Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Chain Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold

Dalben Australian Opal Rose Gold Necklace
By Laura Dalben
Located in Como, IT
Dalben design hand crafted necklace composed of 38 carat Australian Opals and 18 k rose gold
Category

21st Century and Contemporary Italian Contemporary Beaded Necklaces

Materials

Opal, Gold, 18k Gold, Rose Gold

FINE 3.57ct Australian Coober Pedy Opal Diamond 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Fine Natural Australian Coober Pedy Opal & Diamond 18k Yellow Gold Pendant Necklace. 3.57ct total
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Opal, Fire Opal, Gold, 18k Gold, Yellow Gold

Minimal Style Oval Ethiopian Opal Pendant Necklace 18k Yellow Gold
Located in Suwanee, GA
Minimal Style Oval Ethiopian Opal Pendant Necklace 18k Yellow Gold. Free Domestic USPS First Class
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold, Gold

Victorian 2.60 carat crescent opal diamond 18k yellow gold enamel necklace
Located in Beverly Hills, CA
An enchanting Victorian crescent moon necklace, glowing with a dreamy 2.60 carat opal and
Category

Antique 19th Century Victorian Pendant Necklaces

Materials

Diamond, Opal, Gold, 18k Gold, Yellow Gold, Enamel

20 Carat Australian Coober Pedy Opal Diamond 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Fine Natural Australian Coober Pedy Opal & Diamond 18k Yellow Gold Pendant Necklace. Large 20
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Opal, Black Opal, Fire Opal, Gold, 18k Gold, Yel...

Carved Emerald and Opal Beads 18K Gold Multi-Strand Necklace
By Royaal Stones Ltd
Located in Bangkok, Thailand
Gold. The chain consists a total of 43.30 carats Emerald beads and 378 carats Opal beads. The length of
Category

21st Century and Contemporary Art Deco Beaded Necklaces

Materials

Diamond, White Diamond, Emerald, Opal, Gold, 14k Gold, 18k Gold, White Gold

N1 Australian Black Opal Diamond Earth Moon Necklace 18K Yellow Gold
Located in Suwanee, GA
N1 Australian Black Opal Diamond Earth Moon Necklace 18K Yellow Gold. Free Domestic USPS
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Yellow Gold

750 yellow gold necklace with opal
Located in Berlin, DE
Elegant 18K Yellow Gold Necklace with 50 ct Opal – Oval Cabochon – 39 cm An exclusive 18-carat
Category

21st Century and Contemporary Unknown Modern Drop Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Genuine Rainbow Opal 18K Diamond Beaded Necklace
Located in GOES, NL
Large sparkling graduated Ethiopian opal necklace, methiciously hand knotted on silk finished with
Category

2010s African Modern Beaded Necklaces

Materials

Opal, Diamond, Gold, 14k Gold, Yellow Gold

N1 Black Opal Halo Tsavorite Diamond Pendant Necklace 18k Yellow Gold
Located in Suwanee, GA
N1 Black Opal Halo Tsavorite Diamond Pendant Necklace 18k Yellow Gold. Free Domestic USPS First
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Tsavorite, Black Opal, 18k Gold, Yellow Gold

14K Yellow Gold Necklace with Opal
Located in Berlin, DE
Elegant Opal Necklace – 18K/14K Yellow Gold – 8 g – Opal Cabochon (10 ct) This elegant necklace
Category

21st Century and Contemporary Unknown Modern Pendant Necklaces

Materials

Opal, 14k Gold, 18k Gold, Yellow Gold

Green Colored Black Opal Diamond Tsavorite Pendant Necklace 18K Yellow Gold
Located in Suwanee, GA
Green Colored Australian Black Opal Diamond Tsavorite Pendant Necklace 18K Yellow Gold. Free
Category

2010s American Arts and Crafts Pendant Necklaces

Materials

Diamond, Opal, Tsavorite, Black Opal, 18k Gold, Yellow Gold, Gold

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18k Opal Gold Necklace For Sale on 1stDibs

Find the exact 18k opal gold necklace you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Yellow Gold, this item was constructed with great care. Our collection of these items for sale includes 241 vintage editions and 512 modern creations to choose from as well. You’re likely to find the perfect 18k opal gold necklace among the distinctive items we have available, which includes versions made as long ago as the 19th Century as well as those 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. Creating a 18k opal gold necklace has been a part of the legacy of many jewelers, but those produced by Renata Bernard, Syna Jewels and Giulia Colussi are consistently popular. See these pages for a cabochon iteration of this accessory, while there are also round cut cut and oval cut cut versions available here, too. Finding a 18k opal gold necklace for sale for women should be easy, but there are 205 pieces available to browse for unisex as well as men, too.

How Much is a 18k Opal Gold Necklace?

The price for a 18k opal gold necklace starts at $212 and tops out at $285,000 with these necklaces, on average, selling for $6,001.

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 Opal in Jewelry Design

Opals were discovered in 400 BC, and since then five types have been found throughout the world. Before you start shopping for mysteriously beautiful vintage opal rings and other opal jewelry, learn about the different varieties of the gem — and find out which historical figure was reportedly willing to trade his kingdom for a single stone.

Here is a little riddle for you: the month of October has two birthstones, but only one of them encompasses the colors of other birthstones. If you guessed opal, you’re right! (The other gemstone associated with the month of October is tourmaline.)

Opals are such unusual gemstones that there are too many old-wives tales associated with them, like if you’re a blond, wearing an opal necklace will protect your locks from losing color. Opals were also very fashionable in the early 19th century, up until the publication of Sir Walter Scott’s novel Anne of Geierstein in 1829. The title heroine wears an opal and succumbs to an untimely death. However, the British monarchy, and in particular Queen Victoria, did not let this story get in their way, and they frequently gifted opals to friends and family members. October babies should disregard the noise and proudly wear their opals!

There are five types of precious opals: boulder opal, fire opal, crystal/water opal, black opal, and white/light opal. Each variety is distinguished by its color.

So, where does the name come from? The word opal is thought to originate from the Roman opalus or from the Sanskrit úpala (“precious stone”) or from the Greek opallios (“to see a color change”). So while there have been many names for the stones, opals were first discovered in 400 BC in Ethiopia. But the early reference that comes up most often in history books is from the Roman philosopher Pliny the Elder, who wrote about it in 75 AD. In his text he refers to it as opali. The Romans were big fans of opal, Mark Antony was so enamored by it that, as the story goes, he was willing to trade a portion of his kingdom for a single opal.

There's a wide variety of antique and vintage opal jewelry on 1stDibs (and you won't have to trade your kingdom for it).

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 18k Opal Gold Necklace
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k is the perfect karatage for jewelry. While 24k is more prized and typically more expensive, it is also less dense and durable than 18k gold.
  • 1stDibs ExpertApril 5, 2022
    Yes, 18K gold is real gold. However, it is not pure gold. Something marked 18K is 75 percent genuine gold and 25 percent metal alloy. On 1stDibs, shop a range of expertly vetted gold jewelry from some of the world’s top sellers.
  • 1stDibs ExpertApril 5, 2022
    18K green gold is an alloy created by mixing silver, copper and zinc with normal gold. 18K green gold is greener than 14K green gold. On 1stDibs, shop a wide collection of genuine 18K green gold from some of the world's top sellers.
  • 1stDibs ExpertApril 5, 2022
    Whether or not 18K gold wears off depends on how it's made. The finish will not wear off of a piece of jewelry or another object made entirely out of 18K gold. However, wear can occur on pieces that feature 18K gold plating, a thin layer of gold applied over another type of metal. You'll find a large selection of gold jewelry and decorative objects on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    An 18K gold watch is a timepiece made from gold precious metal of a specific purity. The term 18K means 18-karat, a precious metal that is 75 percent pure gold and 25 percent alloy. Shop a large collection of gold watches on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    18K Italy gold is 18-karat gold produced in Italy. Karats tell you how much of a piece of metal is genuine gold. In the case of 18-karat gold, 18 parts are pure gold, and six parts are other metals. This makes 18-karat pieces 75 percent gold. You'll find a large collection of gold jewelry on 1stDibs.
  • 1stDibs ExpertAugust 26, 2024
    The difference between 24K gold and 18K gold is how much pure gold the metals contain. Something made of 24-karat gold is 99.9% pure gold, while 18-karat gold items are 75% gold and 25% alloy metals. Generally, 18-karat gold is more durable and scratch-resistant due to the presence of alloy metals. On the other hand, 24-karat gold tends to be more richly colored and expensive. On 1stDibs, find a wide range of gold jewelry.
  • 1stDibs ExpertApril 5, 2022
    Yes, gold dipped, also known as gold plated, pieces are considered real gold. The process coats a piece of metal or alloy with a layer of gold for a gold finish. Shop a collection of 18 karat gold jewelry, solid and dipped, on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k gold can tarnish, but it is uncommon. Pure gold does not combine easily with oxygen and therefore does not tarnish. The higher the karat, the less likely a piece of gold will tarnish.
  • 1stDibs ExpertMarch 22, 2022
    Yes, 18-karat gold can turn green in some circumstances. This type of gold is about 75 percent genuine gold and 25 percent alloy, and the other metal or metals used to produce it may react negatively to acidic substances. When this occurs, 18-karat gold may take on a greenish hue. On 1stDibs, shop a large selection of gold jewelry.
  • 1stDibs ExpertAugust 29, 2024
    Yes, 18K 750 is real gold. Gold pieces that bear this hallmark are 18-karat gold, a 75% pure gold alloy and 25% base metal. One of the most popular materials for fine jewelry, 18-karat gold shows off a rich yellow, white or rose color and resists scratching more readily than pure gold. Explore a wide variety of 18-karat gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
  • 1stDibs ExpertSeptember 16, 2024
    Yes, many people believe that 18k gold is worth buying. Due to the metal's durability, jewelry produced from 18-karat gold is often resistant to scratching and damage. In addition, the large amount of pure gold in the alloy gives white, rose and yellow 18-karat gold a vibrant color. However, whether or not it’s worth investing in 18-karat gold is totally subjective! At 1stDibs, we believe in buying what you love. Our shopping experience enables discovery and learning, whether you are a seasoned connoisseur or just beginning your collection. Find a diverse range of gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 26, 2024
    On a watch, 18K gold means that the watch features genuine gold. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The high gold content gives the metal an attractive color, while the alloy metals add strength to increase its durability. An 18-karat gold watch may be solid gold or gold-filled, which means it is primarily another metal that the watchmaker finished with a thin layer of 18-karat gold. On 1stDibs, find a large selection of gold watches.
  • 1stDibs ExpertDecember 5, 2024
    Many watch lovers believe that 18K gold is good for watches. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The amount of gold makes the color of the alloy, whether it's white, yellow or rose, rich and visually appealing. At the same time, the addition of alloy metals increases the strength of the gold material. Explore a large selection of watches on 1stDibs.
  • 1stDibs ExpertOctober 12, 2021
    The difference between 14k and 18k rose gold metal is that the 14k rose gold is less pure than 18k. 14k rose gold has a deeper pink color because of greater amounts of copper, whereas 18k rose gold has 75% gold and appears yellow. 14k rose gold is increasingly popular due to its brighter pink hue and resistance to scratches. On 1stDibs, shop a range of vintage rose gold jewelry.
  • 1stDibs ExpertApril 5, 2022
    A piece of jewelry or a decorative object marked 18K gold plated does likely contain real gold. The marking indicates that the item is metal under a layer of gold alloy that contains 75 percent gold and 25 percent other metal. On 1stDibs, shop a collection of expertly vetted gold jewelry.
  • 1stDibs ExpertOctober 30, 2024
    How much your 18K gold chain is worth depends on several factors. As a material, 18-karat gold typically fetches a higher price than 14-karat and 10-karat gold on the scrap market because it contains more pure gold. When selling a piece for scrap, the length, thickness and weight of your chain will determine how much you can expect to receive for it. It's also possible that your chain may be worth more than the going scrap rate due to its style, maker, age and other characteristics. Consequently, you may wish to have a certified appraiser or knowledgeable jeweler evaluate your jewelry before you sell it. On 1stDibs, shop a wide range of gold chains.
  • 1stDibs ExpertOctober 24, 2024
    How much a 14K gold necklace is worth varies. Like other gold alloys, 14-karat gold has scrap value as a precious metal. The price per ounce of gold varies over time, and the thickness and length of your necklace will determine how much you can expect to be paid for it. Your necklace may have value beyond the going rate for 14-karat gold as well, depending on its age, style, maker and condition. You may want to consider having a certified appraiser or experienced jeweler evaluate your piece to give you an idea of its potential value. On 1stDibs, shop a large collection of gold necklaces.
  • 1stDibs ExpertOctober 12, 2021
    How much a 14k gold necklace should cost will depend on its value on the precious metals market, as it changes every day. The average cost of 14k gold should be around $31 according to the market for gold. A 14k gold necklace’s value will depend on craftsmanship, origin, condition and other factors that include the market price. Find antique and vintage gold necklaces on 1stDibs.

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