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Naomi Sarna Queen of the Sea Brooch
By Naomi Sarna
Located in New York, NY
. The pearl is accentuated with beautiful layers of platinum, 18K yellow gold, 18K white gold, and
Category

21st Century and Contemporary Brooches

Materials

Black Diamond, Freshwater Pearl, Moonstone, Natural Pearl, Opal, Pearl, ...

Édéenne White Diamond Brooch Transformable into an Illusion of a Blue Diamond
By Édéenne
Located in Paris, FR
made in 18K white gold, set with rose-cut white diamonds totalling 4.39 carats and its arms set with 60
Category

2010s French Contemporary Brooches

Materials

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

Antique Jeweled Butterfly Pin
Located in Scottsdale, AZ
18k gold and silver emerald, diamond and ruby encrusted pin with an opal center.
Category

Antique Late 19th Century English Victorian Brooches

Materials

Opal, Ruby, Diamond, Emerald, 18k Gold, Silver

Broche En or 18 Carats Ornée d’une Importante Opale Et De 13 Rubis Vers 1960
Located in VERSAILLES, FR
Broche en or 18 carats ornée d’une importante opale de variété arlequine, elle est sertie en
Category

21st Century and Contemporary French Modern Brooches

Materials

Opal, Ruby, 18k Gold

Vintage Opal and Gold Pendant Brooch
Located in Beverly Hills, CA
An impressive and unusual, vintage Opal and Diamond 18KT yellow and white gold large pendant/brooch
Category

Mid-20th Century American Modern Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Opal Blossom Antique 17.7ct Black Opal 8.03ct Diamond Pendant and Brooch
Located in MAIN BEACH, QLD
pendant and also a brooch. Centred with a heart of 17.7ct black opal and set in an 18K gold and palladium
Category

Vintage 1930s Australian Pendant Necklaces

Materials

Diamond, Opal, Black Opal, 18k Gold, Palladium

Art Nouveau Diamond Opal Pendant/Brooch, circa 1900
Located in London, GB
18ct gold & silver set Art Nouveau Diamond Opal Pendant/Brooch dated circa 1900 Five round opals
Category

Antique Early 1900s British Art Nouveau Pendant Necklaces

Materials

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

Art Nouveau Diamond Opal Pendant/Brooch, circa 1900
Located in London, GB
18ct gold & silver set Art Nouveau Diamond Opal Pendant/Brooch dated circa 1900 Five round opals
Category

Antique Early 1900s British Art Nouveau Pendant Necklaces

Materials

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

Vintage Arthur King Opal and Diamond Pendant and Brooch in 18 Karat Yellow Gold
By Arthur King
Located in Warrington, PA
Very Impressive Vintage Arthur King Opal & Diamond Pendant & Brooch in 18 karat yellow gold. The
Category

20th Century American Retro Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Beautiful Victorian Opal and 2.60 Carat Diamond Fly Brooch/Pendant
Located in Napoli, IT
beautiful Victorian period 1880 ca brooch pendant has been hand modelled in 18 KT solid gold Lovely in
Category

Antique 1880s Victorian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold

Victorian 10.50 Carat Heart Multi Opal 1.45 Carat Diamond Brooch Pendant
Located in Napoli, IT
Exquisite, quintessential of beauty, made of solid 18 KT Gold and Silver portions Boasting 7 Natural antique
Category

Antique 1880s Victorian Pendant Necklaces

Materials

Diamond, Opal, 18k Gold, Silver

Carved Chalcedony Sculpture and Opal in 18kt Gold Pendant, Enhancer, and Brooch
Located in Logan, UT
Chalcedony (natural, carved by Steve Walters) -Crystal Opal (Australian) -0.08ct Diamond -18kt Gold and
Category

21st Century and Contemporary American Contemporary Brooches

Materials

Chalcedony, Diamond, Opal, 18k Gold, Platinum, Gold

TIFFANY Platinum 18K Gold Diamond Opal Firework Brooch
By Tiffany Co.
Located in New York City, NY
Impressive and unusual "firework" inspired diamond brooch in a platinum and 18k gold setting by
Category

1990s American Brooches

Materials

Diamond, Opal, Platinum

Opal Diamond Gold Peacock Brooch
Located in Miami, FL
18 karat yellow gold opal and diamond peacock featuring 17 pear shape fire opals weighing
Category

20th Century American Brooches

Materials

Diamond, Opal, 18k Gold

Ethiopian Opal Emerald Sapphire Parrot Brooch in 18K White Gold
Located in Bangkok, TH
beautiful gift for yourself or your beloved one. Brooch Information Metal: 18K White Gold Width: 19 mm
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Emerald, Opal, Sapphire, 18k Gold, White Gold

1960 s Opal and Diamond 18K Brooch Pendant
Located in Toronto, ON
1960’s Opal and Diamond 18K Brooch Pendant. Abstract design off set in centre with opal showing
Category

Vintage 1960s Brooches

Materials

Diamond, Opal, 18k Gold

Opal Quartz Diamond Gold Owl Brooch
Located in Miami, FL
Vintage 18k yellow gold owl brooch featuring opal, diamonds and quartz. Metal weight: 13.06
Category

20th Century American Brooches

Materials

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

Vintage 18k Gold 61.40ctw GIA Oval Cabochon Opal Diamond Pin Brooch Pendant
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Opal - Oval Cabochon Cut - Bezel Set - Gray Color w/ Play of
Category

21st Century and Contemporary Brooches

Materials

Diamond, Opal, 18k Gold, White Gold

Vintage 18k Gold Opal Diamond Emerald Caterpillar Butterfly Pin Brooch Ring Set
Located in Montclair, NJ
Set Details: Material: Solid 18k Yellow Gold Weight: 27.47 Grams Condition: Vintage. Original
Category

20th Century Brooches

Materials

Diamond, Emerald, Opal, Gold, 18k Gold, Yellow Gold

15.54 Carat Australian Boulder Opal Diamond Ruby 18k Yellow White Gold Brooch
Located in Beverly Hills, CA
This fabulous brooch is adorned with a stunning 15.54 carat Boulder Opal from Australia. The Opal
Category

21st Century and Contemporary American Brooches

Materials

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

Antique Art Nouveau Opal Yellow Gold Brooch
Located in London, GB
yellow gold, set with a vibrant black opal in the centre. It has a very nice design with flowers and
Category

Antique Early 1900s Unknown Art Nouveau Brooches

Materials

Opal, 18k Gold, Yellow Gold

Antique 18ct Gold Opal Diamond Crescent Brooch
Located in Brighton, GB
Antique Opal & Diamond Crescent 18ct Gold Tested Circa 1880 The Most Gorgeous Victorian
Category

Antique Late 19th Century European Brooches

Materials

Diamond, Opal, Gold, 18k Gold

Retro Opal Diamond Gold Floral Spray Pin Brooch
Located in Miami, FL
18K textured yellow gold, weighing 55.7 grams and measuring 3.1” long and 1.1/2” wide x 24 mm deep
Category

Vintage 1950s Unknown Brooches

Materials

Diamond, Opal, 18k Gold

Vintage 18K Opal and Diamond Bug Fly Pendant Brooch
Located in Henderson, NV
Crafted in 18K yellow gold, the pin/pendant features and insect with opal body, ruby eyes and
Category

Late 20th Century American Art Nouveau Brooches

Materials

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

Australian Opal Cluster Brooch in 14k Yellow Gold
Located in Honolulu, HI
Stunning Australian opal brooch in 14k yellow gold. This beautiful brooch features 18 oval cabochon
Category

Late 20th Century Brooches

Materials

Opal, 18k Gold, Yellow Gold

8.28 Ct. Ethiopian Opal Diamond Vintage Style Wonderful Bird Brooch in 18K Gold
Located in Bangkok, TH
encrusted along the head and body of the lovely humming bird. The brooch is modelled in solid 18k yellow
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Diamond, Opal, 18k Gold, Yellow Gold

Edwardian Style 13.43 Ct. Ethiopian Opal and Diamond Brooch in 18K White Gold
Located in Bangkok, TH
. Artfully fabricated in 18k white gold, the enchanting gemstone is suffused with an array of gorgeous
Category

21st Century and Contemporary Unknown Edwardian Brooches

Materials

Diamond, Opal, 18k Gold, White Gold

18K Black Opal And Diamond Swan Brooch P-923RTX-N
Located in Addison, TX
Dazzle and enchant with this exquisite 18K Black Opal and Diamond Swan Brooch, a true masterpiece
Category

Vintage 1920s Art Nouveau Brooches

Materials

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

Vintage Gold, Peridot and Opal Comet Brooch
Located in Stamford, CT
A distinctive 18 Kt gold comet brooch, larger than most and brilliant with opals around the peridot
Category

Late 20th Century Unknown Modern Brooches

Materials

Opal, Peridot, 18k Gold

Black Opal Sapphire and Diamond Art Deco Style Bee Brooch in 18K White Gold
Located in Bangkok, TH
who appreciate unique elegance. Brooch Information Style: Art Deco Metal: 18K White Gold Width: 43 mm
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

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

1.80 Ct. Black Opal Sapphire and Diamond Art Deco Style Brooch in 18K White Gold
Located in Bangkok, TH
Information Style: Art Deco Metal: 18K White Gold Width: 45 mm. Length: 24 mm. Weight: 11.05 g. (approx. in
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

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

Black Opal and Multi Gemstone Vintage Style Exotic Bird Brooch in 18K White Gold
Located in Bangkok, TH
shaped solid Australian black opal. A beautiful gift for yourself or your beloved one. Brooch
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Multi-gemstone, Opal, Black Opal, 18k Gold, White Gold

Opal and Diamond Brooch in 18 Karat Gold
Located in Dallas, TX
So much color is this opal and diamond brooch! Set in 18 karat yellow gold, this can also be worn
Category

1990s Unknown Brooches

Materials

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

Diamond Emerald and Opal Yellow Gold Pendant/Brooch
Located in Southampton, PA
18K yellow gold, the superb pin is adorned in gorgeous 20ct of opals, beautiful 0.85ct of emeralds and
Category

20th Century Unknown Brooches

Materials

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

18K and Silver Opal, Ruby, Pearl And Diamond Butterfly Brooch
Located in New York, NY
A true one-of-a-kind treasure, this exquisite butterfly brooch is masterfully handcrafted in 18K
Category

20th Century American Modern Brooches

Materials

Diamond, Opal, Pearl, Ruby, 18k Gold, Silver

Boulder Opal Diamond Gold Flower-Bouquet Brooch-Pendant
Located in Beverly Hills, CA
flowers and leaves are set with round brilliant cut diamonds. Made in 18k yellow gold and platinum
Category

21st Century and Contemporary American Brooches

Materials

Diamond, Opal, Gold, 18k Gold, Yellow Gold, Platinum

Modern Coober Pedy Opal Gold Ribbon Brooch Circa 1980
Located in ADELAIDE, SA
Gold bar brooch with a Coober Pedy solid light opaque opal. The opal is bezel set with curved flat
Category

Late 20th Century Modern Brooches

Materials

Opal, 18k Gold

8.26 Ct. Ethiopian Opal Emerald Diamond Art Deco Style Brooch in 18K White Gold
Located in Bangkok, TH
legacy of heritage. Brooch Information Style: Art Deco Metal: 18K White Gold Width: 25 mm. Length: 80
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

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

Vhernier Turtle Brooch Opal Rock Crystal Diamond Gold
By Vhernier
Located in Los Angeles, CA
Vhernier sea turtle brooch set with opal diamonds and rock crystal on gold. The exotic sea turtle
Category

Early 2000s Italian Contemporary Brooches

Materials

White Diamond, Opal, Rock Crystal, 18k Gold, White Gold

Square Opal Star Brooch Pin, 18 Karat Yellow Gold
Located in New York, NY
A Square Opal Star Brooch Pin made in 18 Karat Yellow Gold. The total weight is 24 grams. The
Category

20th Century Brooches

Materials

Opal, 18k Gold, Yellow Gold

Diamond and Opal Yellow Gold and Platinum Feather Brooch
Located in Southampton, PA
The classically luxurious blend of radiant 18K yellow gold and wonderfully shimmering platinum is
Category

20th Century Brooches

Materials

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

Opal Blue Sapphire and Diamond Art Deco Style Openwork Brooch in 18K White Gold
Located in Bangkok, TH
. Expertly crafted in 18K white gold, the brooch radiates sophistication and vintage charm. Perfect for
Category

21st Century and Contemporary Thai Art Deco Brooches

Materials

Diamond, Opal, Blue Sapphire, 18k Gold, White Gold

1960s Crystal Opal Gold Grape Vine Design Center Brooch Pendant
Located in Miami Beach, FL
, blues and yellows. The 18k gold frame shows leaves growing around the opal with stems of grapes accents
Category

Vintage 1960s Unknown Brooches

Materials

Opal, 18k Gold

Marcus Co. Opal Diamond Gold Platinum Brooch Pendant
By Marcus Co.
Located in New York, NY
An American Art Nouveau 18 karat gold and platinum brooch/pendant with black opal, diamonds and
Category

Antique Early 1900s American Art Nouveau Brooches

Materials

Diamond, Opal, 18k Gold, Platinum

Colorful Opal Diamond Frog Brooch
Located in New York, NY
Adorable colorful frog brooch! Covered with 165 colorful cabochon opals & a double raw of 132
Category

20th Century Unknown Art Deco Brooches

Materials

Diamond, Opal, 18k Gold, Silver

Casbah Multi-Tone Gold Diamond and Opal Butterfly Brooch
Located in Southampton, PA
This dainty design from Casbah is adorable and sweet. The brooch is made of 18K white and yellow
Category

Late 20th Century Unknown Brooches

Materials

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

Opal Ruby Diamond Silver Gold Blue Monarch Butterfly Brooch
Located in Southampton, PA
shaped like a butterfly and is made of a combination of 18K yellow gold and silver. Thanks to the
Category

20th Century Modern Brooches

Materials

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

English Jade Opal Ruby Gold Floral Brooch
Located in Miami, FL
18K yellow gold. It incorporates a genuine jade basket a floral arrangement. It is adorned by 13
Category

Vintage 1950s Brooches

Materials

Jade, 18k Gold

18 Karat Gold, Five Carved Opal, Emerald and Diamond Flower Brooch
Located in New York, NY
18 kt., 5 carved opal flowers, 6 round emeralds, 5 round diamonds ap. .30 ct., ap. 10.8 dwts
Category

Antique Late 19th Century Brooches

Materials

Diamond, Emerald, Opal, 18k Gold

Black Opal, Diamond and Ruby Butterfly Brooch
Located in Carmel-by-the-Sea, CA
alluring as the real creatures in flight. Her wings made of black opals that illuminate in the light, her
Category

21st Century and Contemporary Brooches

Materials

Diamond, Opal, 18k Gold

Vintage Large Opal and Diamond 18 Carat Gold Crescent Brooch
Located in Chipping Campden, GB
An exquisite large vintage crescent brooch fully set with opals and diamonds. The 23 spectacular
Category

Vintage 1910s Unknown Art Deco Brooches

Materials

Diamond, Opal, 18k Gold

La Triomphe Opal Lapis Diamond Cameo Brooch
Located in Chevy Chase, MD
A stunning white opal, lapis lazuli, diamond and gold cameo brooch by La Triomphe. The carved opal
Category

Vintage 1970s Brooches

Materials

Diamond, Lapis Lazuli, Opal, 18k Gold

Vintage Black Opal Diamond Platinum 18 Karat Gold Owl Brooch
Located in Philadelphia, PA
gold talons and face Centering a black pear cut opal tablet as stomach, opaque with strong spectral
Category

Vintage 1960s Contemporary Brooches

Materials

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

Vintage Black Opal Diamond Platinum 18 Karat Gold Owl Brooch
Located in Philadelphia, PA
gold talons and face Centering a black pear cut opal tablet as stomach, opaque with strong spectral
Category

Vintage 1960s Contemporary Brooches

Materials

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

Fabulous Mexican Opal, Specitite Garnet, Diamond Pendant/Brooch in 18 Karat Gold
By Bella Campbell/Campbellian Collection
Located in Morristown, NJ
18 K Yellow Gold Pendant/Brooch, Lotus Flower, has Mexican opal surrounded with Specitite Garnets
Category

2010s American Modern Brooches

Materials

Diamond, Garnet, Opal, 18k Gold

60 Ct Natural Opal Fancy Cognac Diamonds 18K Gold, 1960
Located in Herzelia, Tel Aviv
Opal is mesmerisingly bright for a natural stone. Outstanding quality of the Gold craft. Once it was
Category

Vintage 1960s Brooches

Materials

Diamond, Opal, 18k Gold

Antique Australian Opal and Diamond 18 Carat Gold Brooch, circa 1900s
Located in London, GB
Beautiful handmade antique brooch set with an impressive Australian opal with an approximate weight
Category

Antique Early 1900s Unknown Late Victorian Brooches

Materials

Diamond, Opal, 18k Gold, Rose Gold, Yellow Gold

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18k Gold Opal Brooch For Sale on 1stDibs

Surely you’ll find the exact 18k gold opal brooch you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, 18k Gold and Yellow Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 18k gold opal brooch 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. Finding an appealing 18k gold opal brooch — no matter the origin — is easy, but E. Wolfe Company, Fabergé and Gilbert Albert each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also cabochon cut and oval cut cut versions available here, too. When shopping for a 18k gold opal brooch, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 18k Gold Opal Brooch?

On average, a 18k gold opal brooch at 1stDibs sells for $6,500, while they’re typically $199 on the low end and $162,999 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of 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 Brooches for You

Vintage brooches, which refer to decorative jewelry traditionally pinned to garments and used to fasten pieces of clothing together where needed, have seen increasing popularity in recent years.

While jewelry trends come and go, brooches are indeed back on the radar thanks to fashion houses like GucciVersaceDior and Saint Laurent, all of which feature fun pinnable designs in their current collections. Whether a dazzlingly naturalistic Art Nouveau dragonfly, a whimsical David Webb animal, a gem-studded bloom or a streamlined abstract design, these jewels add color and sparkle to your look and a spring to your step. 

Given their long history, brooches have expectedly taken on a variety of different shapes and forms over time, with jewelers turning to assorted methods of ornamentation for these accessories, including enameling and the integration of pearls and gemstones. Cameo brooches that originated during the Victorian age are characterized by a shell carved in raised relief that feature portraits of a woman’s profile, while 19th-century micromosaic brooches, comprising innumerable individually placed glass fragments, sometimes feature miniature depictions of a pastoral scene in daily Roman life.

At one time, brooches were symbols of wealth, made primarily from the finest metals and showcasing exquisite precious gemstones. Today, these jewels are inclusive and universal, and you don’t have to travel very far to find an admirer of brooches. They can be richly geometric in form, such as the ornate diamond pins dating from the Art Deco era, or designer-specific, such as the celebrated naturalistic works created by Tiffany Co., the milk glass and gold confections crafted by Trifari or handmade vintage Chanel brooches of silk or laminated sheer fabric. Chanel, of course, has never abandoned this style, producing gorgeously baroque CC examples since the 1980s.

Brooches are versatile and adaptable. These decorative accessories can be worn in your hair, on hats, scarves and on the lower point of V-neck clothing. Pin a dazzling brooch to the lapel of your blazer-and-tee combo or add a cluster of smaller pins to your overcoat. And while brooches have their place in “mourning jewelry,” in that a mourning brooch is representative of your connection to a lost loved one, they’re widely seen as romantic and symbolic of love, so much so that a hardcore brooch enthusiast might advocate for brooches to be worn over the heart.

Today, find a wide variety of antique and vintage brooches for sale on 1stDibs, including gold brooches, sapphire brooches and more.

Questions About 18k Gold Opal Brooch
  • 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 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 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 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
    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 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
    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 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 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 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 ExpertNovember 1, 2023
    The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.
  • 1stDibs ExpertFebruary 22, 2021
    The price of gold per gram fluctuates with the market for gold. Today, 18k gold is worth roughly $44 per gram.