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Natural Diamond 0.72CT Natural Opal 3.74CT 18KT White Gold Ring
Located in Antwerpen, BE
Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and High Quality 18KT hallmarked
Category

2010s Belgian Modern Fashion Rings

Materials

Diamond, Opal, White Gold

Natural Diamond 0.37 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamonds 2.82ct 18KT Yellow Gold Four Prong Tennis Bracelet
Located in Antwerpen, BE
INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically
Category

2010s European Modern Tennis Bracelets

Materials

Diamond, Yellow Gold, 18k Gold

Natural Diamond 0.71 carats 18KT White Gold Cluster Statement Ring
Located in Antwerpen, BE
, Birthday, for your family and friends at party, wedding or memorable moments. High Quality 18kt Hallmarked
Category

2010s Belgian Artisan Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 2.50 Carats 18KT Yellow Gold Baguette Link Bracelet
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Link Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

Natural Diamond 0.69carats 18KT White Gold Baguette Hoop Huggies Earrings
Located in Antwerpen, BE
products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Modern Hoop Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 2.02 18KT White Gold Full Eternity Band Ring
Located in Antwerpen, BE
included. ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s European Modern Band Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.52 carats 18KT White Gold Cluster Stud Earrings
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.85 carats 18KT White Gold Cluster Stud Earrings
Located in Antwerpen, BE
graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.44 cts 18KT White Gold Flower Statement Ring
Located in Antwerpen, BE
Certificate Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s Belgian Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamonds 1.27 carats 18KT White Gold Sapphire Hoop Earrings
Located in Antwerpen, BE
An Elegant 18 KT Hoop earring gives a dainty look! Color her world with these vibrant in & out
Category

2010s Belgian Modern Hoop Earrings

Materials

Diamond, Sapphire, White Gold

Natural Diamonds 6.7 carats 18KT White Gold Baguette Tennis Bracelet
Located in Antwerpen, BE
ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Art Nouveau Tennis Bracelets

Materials

Diamond, White Gold, 18k Gold

Italian Rhinocero Matte High Polish 18KT Yellow Gold Bangle Bracelet 46.5 Grams
By Harbor Diamonds
Located in New York, NY
: 29.9 dwt (≈ 46.5 grams) • Country of Manufacture: Italy (hallmarked Italy and 18KT) • Design
Category

1990s Contemporary Bangles

Materials

18k Gold, Yellow Gold

Natural Diamond 0.42 Carats 18KT White Gold Cluster Minimalistic Ring
Located in Antwerpen, BE
are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Modern Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.42 Carats 18KT Yellow Gold Cluster Minimalistic Ring
Located in Antwerpen, BE
products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Modern Cluster Rings

Materials

Diamond, 18k Gold, Yellow Gold

Natural Diamond 0.44 carats 18KT White Gold Floral Stud Earrings
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.20 carats 18KT White Gold Cluster Simple Pendant
Located in Antwerpen, BE
gorgeous centerpiece. Crafted in 18KT white gold and boasting a total diamond weight of 0.20 carats, this
Category

2010s Belgian Modern Chain Necklaces

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.87 carats 18KT White Gold Cluster Drop Danglers
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Dangle Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 2.70 Carats 18KT White Gold Baguette Link Bracelet
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Link Bracelets

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.36 Carats 18KT White Gold Trio Cluster Anniversary Ring
Located in Antwerpen, BE
ring, set in gleaming white gold. This exclusive 18 KT baguette and round diamond 3 cluster designer
Category

2010s Belgian Art Deco Cluster Rings

Materials

Diamond, White Gold, 18k Gold

Natural Diamond 0.97 carats 18KT Yellow Gold Eternity Wedding Band Ring
Located in Antwerpen, BE
band embodies classic elegance with a modern flair. DETAILS: Metal: 18KT Yellow Gold Weight: 2.72
Category

2010s Belgian Modern Band Rings

Materials

Diamond, 18k Gold, Yellow Gold

Natural Diamond 0.55 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
. ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.74 carats 18KT White Gold Exclusive Statement Ring
Located in Antwerpen, BE
PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law
Category

2010s Belgian Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.37 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced
Category

2010s Belgian Modern Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.37 carats 18KT White Gold Floral Cluster Ring
Located in Antwerpen, BE
INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically
Category

2010s Belgian Artisan Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.65 carats 18KT White Gold Flower Pendant Chain Necklace
Located in Antwerpen, BE
Crafted from luxurious 18 Kt White Gold, the pendant takes on a delicate flower shape, adding a
Category

2010s Belgian Art Nouveau Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Natural Diamonds 0.74 carats 18KT White Gold Classic Round Earrings
Located in Antwerpen, BE
Certificate Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s Estonian Artisan Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.45 carat 18KT White Gold Full Eternity Ring
Located in Antwerpen, BE
. DETAILS: Metal: 18KT White Gold/ 18KT Yellow Gold Weight: 1.87 Grams Gemstone: Natural Diamonds Shape
Category

2010s Belgian Modern Bridal Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond Necklace 11.13CT 18KT White Gold Women Statement Necklace
Located in Antwerpen, BE
products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Modern Link Necklaces

Materials

Diamond, White Gold, 18k Gold, Rhodium

Natural diamonds 0.25 carats 18KT Yellow Gold Heart Shape Stud Earrings
Located in Antwerpen, BE
Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Natural diamonds 0.25 carats 18KT White Gold Heart Shape Stud Earrings
Located in Antwerpen, BE
Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

18KT Dual-tone Gold Carved Emerald Leaves and Diamond Chandelier Earrings
By Claris-A
Located in Monte Carlo, MC
bears the French state 18KT hallmark stamp, ensuring authenticity and quality. These earrings are 7.5 cm
Category

21st Century and Contemporary French Art Nouveau Dangle Earrings

Materials

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

Natural Diamonds 2.65 carats 18KT White Gold Statement Dangler Earrings
Located in Antwerpen, BE
. ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Art Nouveau Dangle Earrings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.44 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

18KT Gold Natural Baguette Diamond Half Eternity Wedding Band R043586WG
Located in Antwerpen, BE
, Birthday, for your family and friends at party, wedding or memorable moments High Quality 18kt Hallmarked
Category

2010s Belgian Art Nouveau Bridal Rings

Materials

Diamond, Gold, 18k Gold, White Gold

18KT Gold Natural Baguette Diamond Half Eternity Wedding Band R043586RG
Located in Antwerpen, BE
, Birthday, for your family and friends at party, wedding or memorable moments High Quality 18kt Hallmarked
Category

2010s Belgian Art Nouveau Bridal Rings

Materials

Diamond, Gold, 18k Gold, Rose Gold

Natural Diamond 0.55 carat 18KT White Gold Modern Band Ring
Located in Antwerpen, BE
and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to transparent
Category

2010s Belgian Modern Band Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 1.50 Carats 18KT White Gold Wedding Band Ring
Located in Antwerpen, BE
products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Modern Band Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.65 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 1.05 carats 18KT Yellow Gold Cluster Stud Earrings
Located in Antwerpen, BE
-Quality 18kt Hallmarked Gold Guaranteed Natural Untreated Diamonds Guarantee: This item is guaranteed
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

18KT Gold Natural Baguette Diamond Half Eternity Wedding Band R043586YG
Located in Antwerpen, BE
at party, wedding or memorable moments High Quality 18kt Hallmarked Gold Guaranteed Natural
Category

2010s Belgian Art Deco Band Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Autenthic Pomellato Harem 18Kt yellow gold Rock Crystal Ring, Size 6.5
By Pomellato
Located in Miami, FL
gold content. Brand: Pomellato Hallmark: Pomellato 18kt Gemstone: Rock Crystal Material: 18k rose
Category

2010s Italian Contemporary Fashion Rings

Materials

Crystal, Rock Crystal, Yellow Gold

Natural Diamond 0.45 carat 18KT Yellow Gold Full Eternity Ring
Located in Antwerpen, BE
. DETAILS: Metal: 18KT Yellow Gold Weight: 1.87 Grams Gemstone: Natural Diamonds Shape: Round Brilliant
Category

2010s Belgian Modern Bridal Rings

Materials

Diamond, 18k Gold, Yellow Gold

Natural Diamond 0.15 carats 18KT White Gold Cluster Solitaire Duo Open Ring
Located in Antwerpen, BE
sophistication. Crafted from luxurious 18 KT gold, this piece is adorned with 0.15 carats of dazzling diamonds
Category

2010s Belgian Art Deco Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 1.10 Carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Modern Cluster Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.26 carats 18KT White Gold Starburst Cluster Earrings
Located in Antwerpen, BE
ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Modern Stud Earrings

Materials

Diamond, 18k Gold, White Gold

C.A. Giuliano 18kt gold and Enamel and Gem-Set Brooch
Located in Braintree, GB
master of intricate enamel and gemstone designs. Made from 18kt gold and fully hallmarked with the
Category

Antique Mid-19th Century European Brooches

Materials

Enamel

Natural Diamond 0.70 carats 18KT Rose Cluster Simple Stud Earrings
Located in Antwerpen, BE
Experience the elegance and grace of our 18KT Rose Gold Natural Diamonds Illusion Halo Cluster
Category

2010s Belgian Art Nouveau Stud Earrings

Materials

Diamond, 18k Gold, Rose Gold

Natural Diamond 0.40 carats 18KT White Gold Wedding Band Ring
Located in Antwerpen, BE
Included ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according
Category

2010s Belgian Modern Band Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.26 carats 18KT Rose Gold Half Eternity Wedding Band
Located in Antwerpen, BE
Yellow Gold and 18 KT Rose Gold DETAILS: Metal: 18KT Rose Gold Weight: 2.21 Grams Gemstones: Natural
Category

2010s Belgian Modern Band Rings

Materials

Diamond, 18k Gold, Rose Gold

Natural Diamonds 1.62 Carats 18KT White Gold Cocktail Modern Ring
Located in Antwerpen, BE
: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced
Category

2010s Belgian Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 0.46 carats 18KT White Gold Oval Solitaire Engagement Ring
Located in Antwerpen, BE
luxurious refinement. Crafted in 18 KT White gold, this ring exudes warmth and opulence, providing the
Category

21st Century and Contemporary Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond 1.00 Carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
The 18KT White Gold Bridal Modern Ring is a petite and unique diamond ring, perfect for the modern
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural diamond 0.60 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically sourced materials to
Category

2010s Belgian Art Nouveau Engagement Rings

Materials

Diamond, 18k Gold, White Gold

18kt White Gold Drop Earrings with London Blue Topaz, sapphire and diamonds
Located in AMSTERDAM, NL
approx. 8.00 crt Gold content: 18 KT (hallmarked) London Topaz: 2 pcs (12mm*8mm) Natural diamonds: approx
Category

2010s European Regency Drop Earrings

Materials

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

Natural Diamonds Pendant 1.00ct 18KT White Gold Modern Pendant Necklace
Located in Antwerpen, BE
ADDITIONAL PRODUCT INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US
Category

2010s Belgian Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Natural Diamonds 0.50 CT 18KT White Gold Designer Statement Ring
Located in Antwerpen, BE
INFORMATION: *All our products are graded and 18KT Gold hallmarked according to EU/UK/US Law. *Ethically
Category

2010s Belgian Modern Cluster Rings

Materials

Diamond, 18k Gold, White 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.