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Diamond Opal Ring, Necklace 18k Gold 11 TCW Certified
Located in Brooklyn, NY
Natural Finely Faceted Quality Opal Diamond Necklace with Ring Pendant 18k Gold 11 TCW Certified
Category

2010s Italian Modern Cocktail Rings

Materials

Opal, Diamond, 18k Gold, White Gold

Georgian Gem Set French Gold Fob Collection
Located in Stamford, CT
From France c. 1810, a magnificent of 18 Kt gold Georgian Fobs completely encrusted with
Category

Antique 1810s French George III Pendant Necklaces

Materials

Amethyst, Malachite, Rock Crystal, Topaz, Opal, 18k Gold, Gold

Syna Yellow Gold Three Charms with Evil Eye, Gemstones and Diamonds
By Syna Jewels
Located in Fort Lee, NJ
Created in 18 karat yellow gold Rhodolite garnet 3.50 carats approx. Opal 0.80 carat approx
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Garnet, Opal, Rhodolite, 18k Gold, Yellow Gold

20th Century Jade Fine and Precious Stones Metal 18 Karat Gold Birds Pendant
Located in Poitiers, FR
This pendant consists of a large oval jade plate, held in place by a gold-plated and 18-karat gold
Category

Early 20th Century Art Nouveau Pendant Necklaces

Materials

Ruby, Opal, Jade, Garnet, Natural Pearl, Pearl, Metal, Yellow Gold, 18k ...

Tanzanite 1.26CT Pear Shape Diamond 0.35CT Halo Pave Set 18KT Gold Chain Pendant
By Hasbani Diamonds
Located in London, GB
interpretation of a classic look is brought to life in a glossy 18 Karat White Gold Mount. Other sizes available
Category

2010s British Modern Chain Necklaces

Materials

Tanzanite, Diamond, White Diamond, Amethyst, Aquamarine, Carnelian, Citr...

Collana in Oro bianco con ciondolo Opale 9.14 ct. e brillanti 1.35 ct.
Located in Abano Terme, IT
Collana in oro bianco 18 kt. 750/00 con meraviglioso ciondolo in opale di 9.14 ct. di peso tagliato
Category

1990s Italian Modern Drop Necklaces

Materials

White Diamond, Opal, 18k Gold, White Gold

Ruby 1.29 Ct Cluster Pendant 18 Kt White Gold Round Brilliant 0.60 Carat Diamond
By Hasbani Diamonds
Located in London, GB
1.29 carat beautifully crafted in a classic style claw set in 18 karat white gold, and comes with a
Category

2010s British Modern Pendant Necklaces

Materials

Amethyst, Aquamarine, Chalcedony, Citrine, Diamond, White Diamond, Emera...

Sunita Nahata Kunzite 13.38ct. Pendant in 18KRG with Gemstones and Diamond
By Sunita Nahata
Located in Hong Kong, HK
Pendant in 18Karat Rose Gold with Pink Opal, Pink Tourmaline and Diamond. Kunzite: 13.386 carat, 14.50mm
Category

21st Century and Contemporary Thai Contemporary Pendant Necklaces

Materials

White Diamond, Opal, Kunzite, Tourmaline, Gold, 18k Gold, Rose Gold

Collier multifilo con opale di fuoco e granati, chiusura in oro giallo
Located in BARI, IT
in oro giallo 18 kt. E' una collana molto luminosa e valorizza il decolleté femminile in modo
Category

2010s Italian Modern Multi-Strand Necklaces

Materials

Garnet, Fire Opal, 18k Gold

Le Vian Necklace, Opal, Chocolate/Vanilla Diamonds, 18K Strawberry Gold
By Le Vian
Located in Great Neck, NY
Le Vian® Necklace - Opal, Chocolate/Vanilla Diamonds® - 18K Strawberry Gold®
Category

2010s More Rings

18 kt. Yellow Gold Ring Necklace With Opals and Diamonds
Located in Antwerp, BE
Stunning 18 kt. Yellow Gold Ring and Necklace With Opals and Diamonds RING: Diamonds: 8 brilliant
Category

20th Century European Artisan Signet Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Edwardian Opal and Diamond Pendant
Located in London, GB
An Edwardian opal and diamond pendant, the central circular opal is surrounded by old brilliant-cut
Category

Vintage 1910s British Edwardian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Platinum

Late Victorian Opal and Diamond Tiara
Located in London, GB
A late Victorian opal and diamond tiara/necklace, consisting of seven knife-edge gold bars
Category

Antique 1890s European Victorian Drop Necklaces

Materials

Diamond, Opal, 18k Gold, Silver

Cross Pendant Pink Sapphire, Opal, Diamond accented with gold granulation
By Kent Raible
Located in Mossrock, WA
rounds, total weight .73ct Diamond: GVS/SI .13ct total weight 11.4 grams 18k Gold Fits chains with
Category

2010s American Artisan Pendant Necklaces

Materials

Diamond, Opal, Pink Sapphire, 18k Gold, Gold

Dalben Design Australian Boulder Opal and Rose Gold Necklace
By Laura Dalben
Located in Como, IT
Dalben design One of a Kind 18k rose gold matte finishing necklace with two bezel-set Australian
Category

21st Century and Contemporary Italian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

Opal 18k Gold Necklace
By Nancy Phillips
Located in Eugene, OR
"One of the most beautiful necklaces I've ever seen". There are over 100 carats of Boulder Opals
Category

2010s Thai Modern Link Necklaces

Materials

Opal, 18k Gold

5.47ct Black Opal 18K Gold Necklace
Located in MAIN BEACH, QLD
solid Gold Chain: included, 18K solid Gold THE GRYFFIN OPAL DIFFERENCE By investing in solid
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold

Australian 10.70ct Light Opal 18K Gold Necklace
Located in MAIN BEACH, QLD
choker is included with solid 18K gold and Platinum cables. SPECIFICATIONS Opal Type: Light Opal Opal
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

18k Gold, Diamond Boulder Opal Pendant Necklace
By Nancy Phillips
Located in Eugene, OR
carat opal is surrounded by 0.37cts of Diamonds and on a hand made, solid gold chain. Chain length can
Category

2010s Thai Modern Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Ethiopian Opal Diamond Necklace 18K Yellow Gold
Located in Barnsley, GB
Opulence! This gorgeous regal pendant has been crafted in 18k Yellow Gold and set with glittering
Category

21st Century and Contemporary British Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

5.82ct Black Boulder Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
pendant setting. 18K solid gold and high jewellery grade diamonds add to the collectors status of this
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold

Dimos 18k Gold Fire Opal and Diamonds Necklace
Located in Athens, GR
them with all 3 colors of gold. Set in 18 karats yellow gold to be carrying and soft around the opals
Category

2010s Greek Neoclassical Pendant Necklaces

Materials

Diamond, Opal, Fire Opal, 18k Gold

Australian 61.79 Crat Boulder Opal 18k Gold Necklace
Located in MAIN BEACH, QLD
Solid Gold Chain: Solid 18K Gold chain, Kangaroo leather rope THE GRYFFIN OPAL DIFFERENCE By investing
Category

2010s Australian Pendant Necklaces

Materials

Opal, 18k Gold

Opal Gold Necklace
By Rebecca Koven
Located in Fifth Avenue, NY
A Necklace composed of 12 strands of faceted and graduated opal beads. The beads are attached to an
Category

21st Century and Contemporary American Contemporary Beaded Necklaces

Materials

Opal, 18k Gold

4.82 Carat Australian Boulder Opal 18K Gold Necklace
Located in MAIN BEACH, QLD
Metals: 18K solid Gold Chain: included, 18K solid Gold THE GRYFFIN OPAL DIFFERENCE By investing in
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

4.07 Carat Australian Boulder Opal 18K Gold Necklace
Located in MAIN BEACH, QLD
Metals: 18K solid Gold Chain: included, 18K solid Gold THE GRYFFIN OPAL DIFFERENCE By investing in
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

9.34 Carat Australian Boulder Opal 18K Gold Necklace
Located in MAIN BEACH, QLD
metallic. A rare boulder opal of this quality, this adorable pendant set in 18K solid gold will always
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

Australian 2.20ct Black Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
set in solid 18K yellow gold, it makes the opal pop with all its colourful glory. The cable chain is
Category

21st Century and Contemporary Australian Art Deco Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold

Modernist triplets opals diamond necklace in 18k gold
Located in PARIS, FR
Modernist triplets opals diamond necklace in 18-karat yellow gold (750 thousandths). Original
Category

Vintage 1970s French Modernist Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Amyn, Florette Opal Necklace in 18k Yellow Gold
By Amyn The Jeweler
Located in Santa Monica, CA
Florette Opal Necklace set in 18k Yellow gold designed by Amyn The Jeweler. 8 Stones 1.25cts
Category

2010s American Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Australian 3.55ct Dark Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
stunning Dark Opal set in 18K gold and the bail holds 3 brilliant white diamonds. A perfect pendant for
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Australian 5.28ct Dark Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
piece. Set in 18K solid gold, it is an investment that will last a lifetime. SPECIFICATIONS Opal Type
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Opal Gold Necklace
By Lori Kaplan Jewelry
Located in New York, NY
A 3.77 Carat Smooth Ethiopian Opal tear drop is bezel set in 18K gold on a Sterling Silver back
Category

2010s American Link Necklaces

Materials

Opal, Gold, 18k Gold, Sterling Silver

Australian 22.8ct Boulder Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
in 18K gold, the amazing opal pattern is due to it being a 100 million-year-old fossil from the
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Australian 0.94ct Boulder Opal, Diamond 18K Gold Necklace
Located in MAIN BEACH, QLD
opal that would make any of the outback opal hunters envious, set in 18K solid gold and with the
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

37.17ct Boulder Opal, Diamond 18K White Gold Necklace
Located in MAIN BEACH, QLD
A large, rich boulder opal set in solid 18K white gold with accent high jewellery grade diamonds
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, White Gold

3.78ct Australian Boulder Opal, Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
Chain: included, 18K solid Gold and Platinum THE GRYFFIN OPAL DIFFERENCE By investing in solid
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Australian 4.38ct Boulder Opal, Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
Diamond: 0.03ct D IF - F VVS Metals: 18K solid Gold, Platinum Chain: 12.7g, 18K solid Gold. Supplied with
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

1.56ct Australian Black Opal, Diamond 18k Rose Gold Necklace
Located in MAIN BEACH, QLD
A beautiful solid Black Opal with a bright red flash with greens and golds. Set in 18K rose gold
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, Diamond, White Diamond, Black Opal, 18k Gold, Rose Gold

Australian 2.60ct Boulder Opal, Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
-green Boulder Opal with flicks of orange and gold and hints of purple this stone is truly a gem
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Australian 2.43ct Black Opal, Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
holds a freeform shaped black opal surrounded in 18K yellow gold and high jewellery grade brilliant
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

1.95 Carat Australian Crystal Opal 18k Rose Gold Necklace
Located in MAIN BEACH, QLD
A very pretty necklace with an equally beautiful crystal opal. This necklace is solid 18k rose gold
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold, Rose Gold

Australian 21.86ct Boulder Opal, Diamond, Platinum 18K Gold Necklace
Located in MAIN BEACH, QLD
platinum and 18K gold, this pendant is a one-of-a-kind beauty that deserves to be worn regularly
Category

Late 20th Century Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Platinum

Freefrom Diamond Opal Necklace Feature Pendant Yellow Gold
Located in Frederick, MD
This Free From Diamond Opal Necklace Feature Pendant Yellow Gold features two Oval Natural Opals
Category

Vintage 1960s Unknown Modern Necklace Enhancers

Materials

Diamond, Opal, 18k Gold

Boulder Opal Gold Necklace
Located in Turin, IT
quality boulder opals gold 18 ct. central opal : 36 x 24 mm circa total length: 43 cm circa total
Category

21st Century and Contemporary Italian Modern Choker Necklaces

Materials

Opal, 18k Gold

Australian 23.00ct Boulder Opal, Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
, this is a very large, gem-grade opal featuring deep vivid blues and greens, set in 18K gold and
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Platinum

Australian Boulder Opal, Pink Diamond, 18K Gold Platinum Necklace
Located in MAIN BEACH, QLD
: 0.635ct D IF - F VVS Metals: 18K Solid Gold, Platinum
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Pink Diamond, Opal, 18k Gold, Platinum

Carved Opal Gold Horse Head Pendant Necklace
By Helen Ringus
Located in TRYON, NC
This beautifully carved horse head was carved in Australia. The 18 kt yellow gold bridle has and
Category

Late 20th Century American Contemporary Necklace Enhancers

Materials

Blue Sapphire, Opal, Pink Sapphire, 18k Gold

114.32ct Australian Black Opal, 18K Gold and Kangaroo Leather Necklace
Located in MAIN BEACH, QLD
18K gold with a kangaroo leather necklace making it a truly Australian piece. It is rare to find Black
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Opal, 18k Gold

Australian 5.65ct Black Opal, Diamond 18k White Gold Necklace
Located in MAIN BEACH, QLD
bail ball encrusted with 25 brilliant white diamonds, all set in our signature solid 18K white gold
Category

21st Century and Contemporary Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, White Gold

Australian Natural Untreated Boulder Opals Necklace in 18k Yellow Gold
By Renata Bernard
Located in Sydney, AU
necklace is new. PARTICULARS: Size & Stone Measurements: Opals weight: 0.77ct Metal: 18K yellow gold
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 32.73ct Boulder Opal Pendant Necklace 18K Gold
Located in Sydney, AU
Opal length: 50.44mm Opal width: 20.05mm Opal thickness: 9.10mm Metal: 18K yellow gold This opal
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 16.30ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
, the epitome of everlasting love. Perfectly handcrafted in our gorgeous 18K yellow gold is sure to
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Natural Untreated Australian 22.45ct Boulder Opal Pendant Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
picture. Enquire if you would like to purchase an 18K solid gold chain. This opal pendant arrives in a
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Diamond, Opal, Yellow Gold, 18k Gold

Natural Untreated Australian 6.65ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
the picture. Enquire if you would like to purchase an 18K solid gold chain. This opal pendant arrives
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Diamond, 18k Gold, Yellow Gold

Natural Untreated Australian 2.07ct Black Opal Pendant Necklace 18K White Gold
By Renata Bernard
Located in Sydney, AU
black opal (2.07ct) hailing from Lightning Ridge, Australia. Set in our elegant 18K white gold, this
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Black Opal, 18k Gold, White Gold

Natural Untreated Australian 9.50ct Boulder Opal Diamonds Necklace 18k Gold
By Renata Bernard
Located in Sydney, AU
length: 16.26mm Opal width: 11.89mm Opal thickness: 4.78mm Pendant metal: 18K white gold Chain: The
Category

2010s Australian Contemporary Pendant Necklaces

Materials

Opal, Diamond, 18k Gold, White 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 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 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
    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 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 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 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 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.
  • 1stDibs ExpertAugust 26, 2024
    To tell if a 14K gold necklace is real, place a magnet on it. If you notice a strong attraction, the piece is unlikely to be genuine 14-karat gold because the gold alloy is not magnetic. A certified appraiser or experienced jeweler can also help you assess whether your piece is real gold. Find a wide variety of gold necklaces on 1stDibs.

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