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Van Cleef Arpels Tiger’s Eye Gold Vintage Ring
By Van Cleef Arpels
Located in Beverly Hills, CA
WEIGHT: 11.6 grams RING SIZE: 7.5 HALLMARKS: VCA, 18KT, & the serial number B 5140
Category

Late 20th Century Unknown Dome Rings

Materials

Tiger s Eye, Gold, 18k Gold

French Art Deco 18 Karat Gold Onyx, Pearl and Diamond Pendant Necklace, 1920
Located in Braintree, GB
necklace. Made in France Circa 1920's Pendant hallmarked with 18kt gold French eagle. Necklace hallmarked
Category

Vintage 1920s French Art Deco Pendant Necklaces

Materials

Diamond, Onyx, Freshwater Pearl, 18k Gold

Seashell Cocktail Ring Vintage 18k Yellow Gold Cuff Sz 5.5 Fine Ocean Jewelry
Located in Torrance, CA
is 3/4 inches wide. Metal & Hallmark: 18 karat yellow gold. The ring is hallmarked "Kt 18"
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

Gold, 18k Gold, Yellow Gold

Georges Lenfant vintage necklace, yellow gold paillette model
By Georges L Enfant
Located in PARIS, FR
and eagle head hallmark for the 18Kt gold. Excellent condition Length: 42.5 cm Net weight: 141.46
Category

Vintage 1970s French Link Necklaces

Materials

Yellow Gold

Tiffany Co. Solid 18 Karat Yellow Gold Baby Spoon #22298
By Tiffany Co.
Located in Washington Depot, CT
: TIFFANY & CO. MAKERS 18 KT GOLD Very good condition, professionally polished. Will come packaged in a
Category

20th Century Contemporary Brooches

Materials

18k Gold, Yellow Gold

Natural Diamond 0.23 carats 18k White Gold Heart Pendant Chain Necklace
Located in Antwerpen, BE
Certificate Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s European Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Diamond Sapphire Ring
Located in Manhasset, NY
Very ornate ring of 18kt. hallmarked. Channel set of pave diamonds and sapphires. Beautiful
Category

20th Century American Collectible Jewelry

Vintage Italy Yellow Gold Platinum 3mm Cuban Link Chain Necklace 19 Inches
Located in New York, NY
Weight: 8.0 Grams Width: 3 mm Length: 19 Inches Hallmark: PT950 18Kt ITEM #:BR-1079-102423-07
Category

20th Century Chain Necklaces

Materials

Yellow Gold, Platinum

Tiffany Co. 18 Karat Gold Set of 6 Tea Spoons
By Tiffany Co.
Located in New York City, NY
Charming 18K yellow gold set of 6 tea spoons by Tiffany & Co. Hallmarks: Tiffany & Co., 18KT
Category

Mid-20th Century Coffee and Tea Sets

Materials

18k Gold

Vintage Italy Yellow Gold Platinum Chain Bracelet 7 Inches
Located in New York, NY
Weight: 4.8 Grams Bracelet Width: 5 mm Bracelet Size: 7 Inches Hallmark: PT950 18Kt ITEM #:BR-1079
Category

20th Century Chain Bracelets

Materials

Yellow Gold, Platinum

Victorian Gold, Silver, Natural Pearls and Rose-Cut Diamond Leaf Brooch, circa
Located in PARIS, FR
century Eagle head hallmark for 18Kt gold and trace of maker's hallmark Sold in its case signed Robert
Category

Antique 1880s French Victorian Brooches

Materials

Diamond, Natural Pearl, Gold, Silver

Van Cleef Arpels Diamond Gold Earrings
By Van Cleef Arpels
Located in New York, NY
Marked Van Cleef & Arpels, Made in France, and 18kt with French Hallmarks.
Category

20th Century French Clip-on Earrings

Materials

Diamond, 18k Gold, Yellow Gold

TIFFANY CO Green Enamel Studded Gold Egg Pill Box
By Tiffany Co.
Located in New York City, NY
/> Hallmarks: Tiffany & Co., 18KT, Italy, 750.
Category

Vintage 1960s Italian Jewelry

Materials

18k Gold

Yellow gold vintage Tubogas bracelet
Located in PARIS, FR
of the eagle head hallmark for 18Kt gold. Excellent general condition, micro scratches on gold parts
Category

Vintage 1970s French Cuff Bracelets

Materials

Yellow Gold

Safir Ruby Emerald Diamond Ring in 18 Karat Gold
Located in Bad Kissingen, DE
750 -18kt yellow gold hallmarked with fineness 750 0.32 ct Emerald 0,94ct Rubies 1.21 ct Safire
Category

21st Century and Contemporary German Band Rings

Materials

Diamond, Emerald, Ruby, Sapphire, 18k Gold

Henru Dunay Signature Brushed Finish Gold Necklace
By Henry Dunay
Located in New York, NY
necklace is 15.5" long and 0.5" wide. Hallmarked Dunay and 18kt. Weight of the piece - 153.2 grams.
Category

Late 20th Century Choker Necklaces

Materials

Gold, 18k Gold, Yellow Gold

Modernist Diamond-Set Snake Ring
Located in Litchfield, CT
HALLMARKS: Kt 18 STOCK NUMBER: 22525 Jewelry acquired from this dealer must delight you. Purchases
Category

Vintage 1960s Fashion Rings

Materials

White Diamond, Diamond, 18k Gold, White Gold

Van Cleef Arpels Gold Dangle Earrings
By Van Cleef Arpels
Located in Southampton, PA
x 24mm wide Stamped Hallmarks: VCA 18KT C3T B33S6 R199 *Free Shipping within the United States
Category

Vintage 1980s French Dangle Earrings

Materials

18k Gold

BUCCELLATI Curb Chain Yellow Gold Bracelet
By Buccellati
Located in Southampton, PA
" Width: 8.5mm Thickness: 8.5mm Stamped Hallmarks: Buccellati 18kt Italy *Free Shipping within the
Category

20th Century Italian Link Bracelets

Materials

18k Gold

Van Cleef Arpels VCA Diamond Yellow Gold Necklace
By Van Cleef Arpels
Located in Southampton, PA
: 83.9 grams Width: 15mm Length: 16" Stamped Hallmarks: VCA 750 18kt C4032A1 2.24ct French Hallmarks
Category

Vintage 1980s French Choker Necklaces

Materials

Diamond, 18k Gold

18 Karat Yellow and White Gold Ring Sapphire Cabochon and Encrusted Diamonds
Located in Manhasset, NY
weight. The ring hallmarked HMI (?) 18Kt Italy. 1.25 carat oval cabochon sapphire. Size 6.5 5 grams
Category

2010s Modern Fashion Rings

Materials

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

Tiffany Co. Coral Inlaid Yellow Gold Bangle Bracelet
By Tiffany Co.
Located in Southampton, PA
: 29mm Weight: 67.3 grams Stamped Hallmarks: T&Co 18kt 1980 *Free Shipping within the United States
Category

Vintage 1980s American Bangles

Materials

Coral, 18k Gold

Tiffany Co. Retro 18 Karat Gold Shoehorn
By Tiffany Co.
Located in New York City, NY
functional, a great gift for the modern affluent gentleman. Hallmarks: Tiffany & Co. Makers, 18kt Gold
Category

Mid-20th Century More Objets d Art and Vertu

Materials

18k Gold

Signet Chevaliere Yellow Gold 1940s Ring
Located in London, GB
French hallmark, the owl for 18kt yellow gold. Circa: Vintage, mid 20th century Weight: 16,1gr Metal
Category

Mid-20th Century Unknown Signet Rings

Materials

18k Gold, Yellow Gold

Van Cleef Arpels Perlee Rose Gold Hoop Earrings
By Van Cleef Arpels
Located in Southampton, PA
. Details: Measurements: 33mm Weight: 7.8 grams Stamped Hallmarks: VCA 18KT JB115372 *Free Shipping within
Category

20th Century French Hoop Earrings

Materials

18k Gold

Retro 1950s Aquamarine Yellow Gold Ring
Located in London, GB
controlled with the British hallmark for 18kt gold. Aquamarine symbolises purity, youth and hope. Due to its
Category

Vintage 1950s British Retro Fashion Rings

Materials

Aquamarine

Vintage Single Cut Diamonds Enamel Wasp Yellow White Gold Brooch
Located in London, GB
18kt yellow gold and the diamonds are set in white gold. It is marked with 18kt gold hallmarks on the
Category

Vintage 1970s Brooches

Materials

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

Tiffany Co. Retro 18 Karat Gold Shoehorn
By Tiffany Co.
Located in New York City, NY
handle bearing a cross. Beautifully made and highly functional. Hallmarks: Tiffany & Co. Makers, 18KT
Category

Mid-20th Century More Objets d Art and Vertu

Materials

18k Gold

Van Cleef Arpels Coral Alhambra Gold Necklace
By Van Cleef Arpels
Located in Feasterville, PA
magnificent necklace is in pristine condition and features 20 coral stations. Hallmarked VCA - France - 4K855
Category

1990s French Chain Necklaces

Materials

Coral, 18k Gold, Yellow Gold

18 Karat Yellow Gold Ladies Clip-On Earrings with Natural Emeralds and Diamonds
Located in Braintree, GB
Tested positive for 18kt gold, no hallmarks. Dimensions - Weight : 14 grams Size: 3.5 x 2.4 x 1.5 cm
Category

Late 20th Century Clip-on Earrings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Vintage Van Cleef Arpels Yellow Gold Steel Bangle Bracelet
By Van Cleef Arpels
Located in Southampton, PA
" Width: 9mm Weight: 47 grams Stamped Hallmarks: VCA 18kt 84 B2368D10 OR 260R Acier *Free Shipping within
Category

20th Century French Bangles

Materials

18k Gold, Stainless Steel

Jaeger Lecoultre Reverso Yellow Gold Date Wristwatch
By Jaeger-LeCoultre
Located in London, GB
is in black leather and with a gold plated clasp signed JL. It is hallmarked with the Swiss hallmarks
Category

Vintage 1980s Swiss Wrist Watches

Materials

18k Gold, Yellow Gold

Tiffany Co. Art Deco Gold Oval Picture Frame
By Tiffany Co.
Located in New York City, NY
design and can hold a 3" x 2.75" picture with minor trimming. Beautifully made. Hallmarks: Tiffany
Category

Vintage 1920s Frames

Materials

18k Gold

5.3 Carat Diamonds Edwardian White Gold Platinum Bar Brooch
Located in London, GB
brooch has nice millegrain setting. This brooch is marked with French hallmarks the owl for 18kt gold
Category

Vintage 1920s Unknown Edwardian Brooches

Materials

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

Family Crest Signet Yellow Gold Ring
Located in London, GB
blazon is topped with a knight helmet. The ring was controlled with the French hallmark, the owl for 18kt
Category

Mid-20th Century French Signet Rings

Materials

18k Gold, Yellow Gold

Tiffany Co. Diamond Ear Clips
By Tiffany Co.
Located in New York, NY
: 18Kt, 750, Italian hallmark (stamp is obscured)
Category

Vintage 1980s Italian Clip-on Earrings

Materials

Diamond, 18k Gold

Modern Brilliant Cut Diamonds Flowers Band Fashion Ring
Located in London, GB
controlled with the UK hallmarks for 18kt gold. It is a size 5 3/4. Weight: 11,8gr Metal: 18kt white Gold
Category

21st Century and Contemporary British Modern Wedding Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Antique 19th Century 18 Karat Yellow Gold Egyptian Snake Ring with 2 Ruby Eyes
Located in Braintree, GB
Antique 19th century 18kt yellow gold Egyptian snake ring with 2 ruby eyes Fully hallmarked
Category

Antique 19th Century Egyptian Fashion Rings

Materials

Ruby, 18k Gold

Tiffany Co. Gold Grecian Bud Vase
By Tiffany Co.
Located in New York City, NY
1929. Hallmarks: Tiffany Co. Makers, 18KT Gold, reference numbers.
Category

Vintage 1930s Desk Accessories

Materials

18k Gold

Van Cleef Arpels VCA Diamond Yellow Gold Necklace
By Van Cleef Arpels
Located in Southampton, PA
Length: 16" Stamped Hallmarks: Van Cleef & Arpels 18kt 1.91ct B45002A4 *Free Shipping within the
Category

Vintage 1970s French Choker Necklaces

Materials

Diamond, 18k Gold

Tiffany Co. Vintage France Yellow Gold Blue Sapphire Bangle Bracelet
By Tiffany Co.
Located in Southampton, PA
Hallmarks: Tiffany & Co France 18kt *Free Shipping within the United States YOUR PRICE: $16,000 JW1lhle
Category

20th Century Bangles

Materials

Sapphire, Yellow Gold

Tiffany Co. Angela Cummings Inlaid Black Jade Coral 18k Gold Bangle Bracelet
By Angela Cummings for Tiffany Co.
Located in New York City, NY
distinctive. Will comfortably fit a 6-6.25" wrist, approx 5/8" wide. Hallmarks: T & CO., 18KT, (C).
Category

Vintage 1980s Bangles

Materials

Black Jade, Coral, 18k Gold

Tiffany Co Cummings Positive Negative Inlaid Black Jade Yellow Gold Earrings
By Angela Cummings for Tiffany Co.
Located in Southampton, PA
18mm Stamped Hallmarks: T& Co 18kt *Free Shipping within the United States* YOUR PRICE: $6,250
Category

Vintage 1970s American Drop Earrings

Materials

Black Jade

Vintage 18 Karat White Gold Ladies Three-Stone Ring with Aquamarine and Diamonds
Located in Braintree, GB
Fully hallmarked English 18kt gold. Dimensions - Finger Size : (UK) = N (US) = 7 (EU) = 54 Size : 2.4 x
Category

Vintage 1950s British Art Deco Three-Stone Rings

Materials

Aquamarine, Diamond, 18k Gold

Cartier 18 Karat White Gold Diamond Criss-Cross Ring
By Cartier
Located in New York, NY
brilliant-cut diamonds. Set in polished 18kt white gold. Hallmarked, Cartier 750 1999 53 and serial number
Category

2010s French Modern More Rings

Materials

Diamond, White Gold

Van Cleef Arpels Chalcedony Diamond Gold Necklace
By Van Cleef Arpels
Located in Southampton, PA
'' Width: 9mm Weight: 37.3 grams Stamped Hallmarks: VCA 18kt 0.40ct B4498C1 France *Free Shipping
Category

Vintage 1980s French Choker Necklaces

Materials

Chalcedony, Diamond

Van Cleef Arpels Diamond Yellow Gold Cocktail Ring
By Van Cleef Arpels
Located in Southampton, PA
Stamped Hallmarks: VCA 18kt (serial number omitted) *Free Shipping within the United States* YOUR PRICE
Category

20th Century French Cocktail Rings

Materials

Diamond, Yellow Gold, 18k Gold

BUCCELLATI Hawaii Gold Wire Link Necklace
By Buccellati
Located in New York City, NY
made in the traditional Buccellati Florentine satin-like finish. Hallmarks: Buccellati, Italy, 18KT
Category

21st Century and Contemporary Italian Contemporary Link Necklaces

Materials

18k Gold

Tiffany Co. Inlaid Black Jade Gold Oval Ear Clips
By Tiffany Co.
Located in New York City, NY
with gold background and inlaid black jade spots and the other with the opposite pattern. Hallmarks: T
Category

Late 20th Century Clip-on Earrings

Materials

Jade, 18k Gold

Renee Lewis Carnelian Diamond Gold Necklace
By Renee Lewis
Located in Southampton, PA
grams Pendant: 23mm x 23mm Stamped Hallmarks:Renee Lewis 18kt 2.21ct diamonds Circa 1840 *Free
Category

Antique 1840s American Drop Necklaces

Materials

Carnelian, Diamond, 18k Gold

18 Karat White Gold Ladies Ring with Natural Aquamarine and Diamonds
Located in Braintree, GB
18kt white gold ladies ring with natural aquamarine and diamonds. Circa 1940's No hallmark, tested
Category

Vintage 1940s Art Deco Dome Rings

Materials

Aquamarine, Diamond, 18k Gold

Roberto Coin Italy 18k Yellow Gold Polished Finish Large Hoop Snap Earrings
By Roberto Coin
Located in Montclair, NJ
: Posts w/ Snap closure (Pierced ears are required.) Hallmark: Italy - 18KT - RC & Red Stone For Signature
Category

21st Century and Contemporary Italian Hoop Earrings

Materials

Gold, 18k Gold, Yellow Gold

.26ctw Round Brilliant Diamond Earrings, 18k Gold Pierced Garland Leaf Dangles
Located in Greensboro, NC
Measurements: 2 9/16" (64.9mm) tall, 3/4" (18.3mm) wide Total Weight: 11.5 Grams Stamps: 18kt, maker’s hallmark
Category

20th Century Unknown Dangle Earrings

Materials

Diamond, 18k Gold, White Gold

Oscar Heyman Oval Pink Sapphire Yellow and White Diamond Ring
By Oscar Heyman
Located in Houston, TX
2.40 carats. Signed: Oscar Heyman Hallmark and Number. 18KT PLAT. The ring is a size 8 1/4 and may
Category

Early 2000s American Cocktail Rings

Materials

Sapphire, White Diamond, Yellow Diamond, Pink Sapphire, Diamond, 18k Gol...

Renee Lewis Natural Pearl Diamond Gold Brooch
By Renee Lewis
Located in Southampton, PA
: 27.1 grams Stamped Hallmarks: Renee Lewis 18kt 9.98ct of diamonds Circa 1800's *Free Shipping
Category

Antique Early 1800s American Brooches

Materials

Diamond, Natural Pearl, 18k Gold

Ladies Cartier 18 Karat Gold Watch, 1280 Panthere Champagne, Diamonds CC131253
By Cartier
Located in San Diego, CA
Made, 18k 1280, CC131253. Quartz movement. The bracelet is hallmarked: Cartier 18kt, Swiss made 750
Category

Early 2000s Swiss Modern Wrist Watches

Materials

Diamond, Gold, 18k Gold

Van Cleef Arpels Sapphire Diamond Yellow Gold Butterfly Necklace
Located in Southampton, PA
: 16'' Weight: 5.5 grams Butterfly Size: 21mm x 10 mm Stamped Hallmarks: VCA 18kt DO49CT B436457
Category

Vintage 1970s French Drop Necklaces

Materials

Diamond, Sapphire, 18k Gold

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Hallmark 18kt For Sale on 1stDibs

On 1stDibs, you can find the most appropriate hallmark 18kt for your needs in our varied inventory. Frequently made of gold, 18k gold and yellow gold, this item was constructed with great care. Our collection of these items for sale includes 5284 vintage editions and 1391 modern creations to choose from as well. You’re likely to find the perfect hallmark 18kt among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. There have been many well-made iterations of the classic hallmark 18kt over the years, but those made by Cartier, Van Cleef Arpels and Tiffany Co. are often thought to be among the most beautiful. While most can agree that any hallmark 18kt from our collection can easily elevate most outfits, but the choice of a diamond version from the 2749 available is guaranteed to add a special touch to your ensemble. A round cut version of this piece has appeal, but there are also brilliant cut and cabochon versions for sale. There aren’t many items for men if you’re seeking a hallmark 18kt, as most of the options available are for women and unisex.

How Much is a Hallmark 18kt?

On average, a hallmark 18kt at 1stDibs sells for $4,866, while they’re typically $10 on the low end and $550,000 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

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

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

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

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

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

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

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

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

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

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

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

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

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