Skip to main content

18 Ct

681
to
3,871
9,411
9,077
5,891
4,843
1,105
904
579
501
237
211
88
58
56
27
26
14
4
3
2
58
607
5,294
16,253
203
88
224
197
163
269
350
433
415
345
51
1,079
428
428
311
291
15,778
6,274
230
22,203
79
20,975
16,568
8,844
5,598
2,469
19,047
2,030
2,799
3,166
1,700
22
15
12
6624
2738
1471
1241
981
to
Sort By
Virgin Mary Madonna Pendant 18 ct Gold Religious
Located in Mārupe, LV
Virgin Mary 18 ct Solid Gold French Pendant Necklace belongs to Edwardian Art Nouveau period (1900
Category

Vintage 1910s French Art Deco Pendant Necklaces

Materials

Gold

Virgin Mary Madonna Pendant 18 ct Gold Religious
Virgin Mary Madonna Pendant 18 ct Gold Religious
Free Shipping
H 1.19 in W 0.67 in L 1.19 in
14kt. Yellow Gold Bangle Set with 18 Ct. Rubies and 12.84 Ct. Diamonds
Located in Braintree, GB
14kt. yellow gold bangle set with 18 ct. rubies and 12.84 ct. diamonds. Dimensions: Inner
Category

21st Century and Contemporary Unknown Cuff Bracelets

Materials

Diamond, Ruby, Yellow Gold

18 Ct White Gold 0.50 Ct Round Brilliant Diamond Stud Earrings
By David Morris
Located in London, GB
selected for its exceptional cut, clarity, and brilliance. The diamonds are securely set in lustrous 18 ct
Category

2010s British Stud Earrings

Materials

Diamond, White Gold

18 Ct White Gold Peridot Necklace
Located in Cape Town, ZA
Chain Attributes: Weight:                             12.1gram Metal Colour:                    White Metal Stamp:                    18ct Length:                             40cm
Category

21st Century and Contemporary Beaded Necklaces

Materials

Peridot, White Gold

PATRICIA DAUNIS .18 ct Diamond Set in Yellow Gold Asymmetric Wave Ring
Located in Kennebunkport, ME
embellished with a .18 ct round diamond (S1-GH). Maker's mark is visible on the interior. Width is 3.5-5.0
Category

Early 2000s American Modern Band Rings

Materials

Diamond, 14k Gold, Yellow Gold

French 18k extraordinary Art Nouveau pendant - 18 ct solid gold - Floral design
Located in Antwerp, BE
18 ct yellow gold and set with three diamonds. One in the top bow, one in the middle and one in the
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, Yellow Gold

David Morris 18 Ct White Gold 0.30 Carat Round Brilliant Diamond Stud Earrings
By David Morris
Located in London, GB
Crafted from high-quality 18 ct white gold, these earrings offer a lustrous and luxurious appeal
Category

2010s British Stud Earrings

Materials

Diamond, White Gold

Vintage 1.80 Ct Diamond and 18 Ct Yellow Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
18 ct yellow gold. The impressive and unusual ring has a tapering, asymmetric lobed design
Category

20th Century Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

Antique 0.63 Ct Sapphire and 0.77 Ct Diamond, 18 Ct Yellow Gold Snake Ring
Located in Jesmond, Newcastle Upon Tyne
antique Victorian ring has been crafted in 18 ct yellow gold. The ring has a substantial, multi-strand
Category

20th Century Unknown Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Antique Jesus Christ Virgin Mary Pendant 18 ct Yellow Gold Art Nouveau Lasserre
Located in Mārupe, LV
Christ and Virgin Mary Double Side Medal. It’s made of 18 ct Solid Gold. Created in France in Art
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Yellow Gold

18 Ct White Gold Tahitian Pearl Hoops
Located in Cape Town, ZA
Item Attributes Measurements: 2 x 9.6mm Metal Colour: White Weight: 4g Number of Stones: 24 Diamonds Carat weight: ...
Category

21st Century and Contemporary Hoop Earrings

Materials

Pearl, White Gold

18 Ct Yellow Gold Anchor Link Chain
Located in Cape Town, ZA
Attractive Chain Attributes: Weight: 18.9gram Metal Colour: Yellow Metal: 18ct Length: 610mm Width: 4mm Thickness: 1mm
Category

21st Century and Contemporary Link Necklaces

Materials

Yellow Gold

18 Ct Yellow Gold Anchor Link Chain
18 Ct Yellow Gold Anchor Link Chain
H 0.04 in W 0.16 in L 24.02 in
18 Ct White Gold Sapphire Diamond Ring
Located in Cape Town, ZA
Refreshing cerulean stone embodied in a sphere of diamonds. This ring weighs 5.4 grams, features 1 RBC Sapphire at the center measuring 5mm x 5mm with a carat weight of 0.53 and is s...
Category

21st Century and Contemporary Modern Cluster Rings

Materials

Diamond, Sapphire, White Gold

Augis Qu Hier Que Demain Love Medal Love Token 18 ct Gold
By A. Augis
Located in Mārupe, LV
Augis "Love Medal", "Médaille d'Amour" 18 ct gold pendant. The phrase "+ Qu'hier - Que Demain" is
Category

Vintage 1910s French Art Nouveau Pendant Necklaces

Materials

Gold

Augis Qu Hier Que Demain Love Medal Love Token 18 ct Gold
Augis Qu Hier Que Demain Love Medal Love Token 18 ct Gold
Free Shipping
H 0.95 in W 0.6 in Dm 0.6 in L 0.6 in
18 Ct Yellow Gold Sapphire and Diamond Pendant
Located in Cape Town, ZA
Item Attributes: Weight: 3.6g Metal Colour: Yellow gold Metal Stamp: 18ct Stone Attributes Number of stones: 1 x Oval Sapphire Carat Weight: 0.50ct Num...
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, Yellow Gold

18 Ct Yellow & White Gold Tanzanite & Diamond Studs
Located in Cape Town, ZA
This Classy and Sophisticated pair of studs are set in 18Carat yellow and white Gold weighing 7.6 grams. They feature 2 Triangular Cut Tanzanite’s weighing 1 carat in total and 30 RB...
Category

21st Century and Contemporary Unknown Modern Stud Earrings

Materials

Diamond, Tanzanite, White Gold

Virgin Mary Madonna Plique A Jour Art Nouveau Pendant Charm 18 ct Yellow Gold
Located in Mārupe, LV
Virgin Mary Enamel 18 ct Yellow Gold French Pendant created in the Plique A Jour technique
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Pearl

David Morris 18 ct White Gold 1.04 ct Diamond Cross Necklace
By David Morris
Located in London, GB
crafted in 18-carat white gold. A testament to refined elegance, this pendant necklace showcases an
Category

2010s British Pendant Necklaces

Vintage 1.71 Ct Diamond and 18 Ct White Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive antique 1.7 carat diamond and 18 karat white gold dress ring; part of our diverse
Category

20th Century British Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

18 Ct Gold Ring Adorned with Pearls and 0.300 Ct Diamonds
Located in Vannes, FR
Discover an exquisite cocktail ring, adorned with 30 diamonds totaling 0.300 carats and three delicate pearls emitting a lustrous nacreous glow. This baroque-style piece commands att...
Category

21st Century and Contemporary French Baroque Cocktail Rings

Materials

Pearl, Diamond, Yellow Gold, 18k Gold, Gold

Antique French Love Token Lucky Charm Pendant Angel 18 ct Gold
Located in Mārupe, LV
Antique French 18k Gold Love Token Lucky Charm Angel Pendant. Exremely rare charm « La Page Heureuse » that means "The Page of Happiness". One of the most rare French "Lucky Charms" ...
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Gold

Antique Victorian 18 Ct Hunter Pocket Watch, Hallmarked in Chester, 1867
Located in London, GB
Antique Victorian 18ct Hunter Pocket Watch,Hallmarked In Chester,1867 This chain driven movement was made by Henry Westrap of Stow and London The watch face is made of silver with ap...
Category

Antique 1860s English Victorian Pocket Watches

Materials

18k Gold

AJD RARE BEAUTIFUL 18 Ct. Brilliant Pink Tourmaline & Sparkling Spinel Pendant
By Aria Jewelry Design
Located in Raleigh, NC
This beautiful pendant is a huge sparkling natural pink round gemcut 18.7 Carat 16 mm translucent clear Tourmaline enhanced with little glittering NATURAL white Spinels set in this l...
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Spinel, Tourmaline, 10k Gold, White Gold

18 Ct Natural Ruby Briolette & 8 Ct Diamond Necklace 18 Karat White Gold, Estate
Located in New York, NY
approximately 18 carats. The stunning rubies are elegantly enhanced by approximately 8 carats of brilliant-cut
Category

Early 2000s Drop Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

Antique 0.50 Ct Diamond and 0.20 Ct Ruby 18 Ct White Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive Art Deco 0.50 carat diamond, 0.20 carat ruby and 18 carat gold dress ring
Category

20th Century Unknown Art Deco Cluster Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

David Morris 18 ct White Gold 0.50 ct Round Brilliant Diamond Pendant Necklace
By David Morris
Located in London, GB
Crafted with precision and artistry, this exquisite piece exudes a timeless allure that transcends trends. The luminous diamond, meticulously selected for its exceptional brilliance,...
Category

2010s British Pendant Necklaces

Materials

Diamond, White Gold

David Morris 18 ct White Gold 0.53 ct Round Brilliant Diamond Pendant Necklace
By David Morris
Located in London, GB
Crafted with precision and artistry, this exquisite piece exudes a timeless allure that transcends trends. The luminous diamond, meticulously selected for its exceptional brilliance,...
Category

2010s British Pendant Necklaces

Materials

Diamond, White Gold

David Morris 18 ct White Gold 1.01 ct Round Brilliant Diamond Pendant Necklace
By David Morris
Located in London, GB
The pendant's design encapsulates modern grace, allowing the diamond's luminosity to take centre stage while exuding an air of understated opulence. The 18ct white gold chain further...
Category

2010s British Pendant Necklaces

Materials

Diamond, White Gold

David Morris 18 ct White Gold 0.30 ct Round Brilliant Diamond Pendant Necklace
By David Morris
Located in London, GB
Experience timeless elegance with the exquisite 0.30 Carat round brilliant White Diamond Pendant by David Morris London. Crafted to perfection, this pendant exudes sophistication and...
Category

2010s British Pendant Necklaces

Materials

Diamond, White Gold

Antique Photo Glass Locket Pendant Necklace 18 ct Gold Ivy Art Nouveau
Located in Mārupe, LV
Art Nouveau French Glass Photo Locket. Pendant is decorated with the ivy leaves in the form of «whip stroke» that makes this piece an exquisite example of Art Nouveau decorative art....
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Gold

Contemporary Australian Crystal Opal Pink Sapphire and Diamond Ring 18 Ct Gold
Located in Hamilton, AU
Lovingly crafted in 18 carat gold, this stunning art-deco-inspired contemporary ring has a
Category

21st Century and Contemporary Australian Contemporary Cluster Rings

Materials

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

Cartier Trinity Wedding/Engagement Ring in 18 ct White, Yellow & Rose Gold
By Cartier
Located in London, GB
Cartier trinity ring, medium size. Resembling infinite unbreakable bonds, this ring glistens out a strong beautiful personality in 18ct gold, in three different colours white, yellow...
Category

2010s French Modern Band Rings

Materials

18k Gold, Rose Gold

Swiss Blue Topaz Gemstone Fantasy 18 CT Famous Pedro Hernandez Brazilian Cutter
By Five Star Jewelry
Located in Austin, TX
This Brazilian Fantasy Gemstone weighs 18.13 carats and was very carefully cut by a well known cutter in Brazil. The London Blue Topaz is so sleek and has amazing reflections. The co...
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Topaz, Blue Topaz

IGI 1.53 ct D VVS2 NO FLUO 18 Ct White Gold Solitarie Ring Certificate
Located in Bergamo, BG
guarantees its exceptional quality and origin. Precious Stones: Brilliant-cut Diamond 1.53 Ct Metal: White
Category

21st Century and Contemporary Italian Cocktail Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Trefle Pendant Lucky Charm Four Leaf Clover 18 ct Yellow Gold Art Nouveau
Located in Mārupe, LV
clover is a luck to find as it is the same with the real love.... COMPOSITION: 18 k solid gold, natural
Category

Early 20th Century French Art Nouveau Pendant Necklaces

Materials

Pearl

Augis Qu Hier Qui Demain Love Medal Pendant Love Token 18 ct Gold
By A. Augis
Located in Mārupe, LV
richness! The charm is made of 18 k gold, French gold marks.
Category

Vintage 1970s French Contemporary Necklace Enhancers

Materials

Ruby, Gold

Augis Qu Hier Qui Demain Love Medal Pendant Love Token 18 ct Gold
Augis Qu Hier Qui Demain Love Medal Pendant Love Token 18 ct Gold
Free Shipping
H 1.09 in W 0.79 in Dm 0.79 in L 0.79 in
STATEMENT Paris, Unit Earring Anyway Double Drops Diamonds & Silver 0, 18 Ct Lft
Located in PARIS, FR
Earring Anyway double drops in rhodium plated sterling silver, set with 21 brilliant-cut diamonds quality G-VS, totaling 0,18 carat. The "Anyway Double Drops Diamond & Silver" earr...
Category

21st Century and Contemporary French Contemporary Drop Earrings

Materials

Diamond, Rhodium, Silver

Large 18k Gold 18+ct GIA Oval Cabochon Sapphire Diamond Statement Cuff Earrings
Located in Montclair, NJ
This magnificent pair of sapphire and diamond statement earrings was crafted from solid 18k yellow and white gold. The earrings feature a pair of beautiful, GIA certified, oval caboc...
Category

Vintage 1980s Drop Earrings

Materials

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

Bulgari Tubogas Serpenti Ring in 18 Ct Yellow Gold with Pear Shaped Diamond Head
By Bulgari
Located in London, GB
A Serpenti Tubogas gold and diamond flexible ring by Bulgari c.2000s, the body in 18ct gold with the characteristic expandable tubogas design that cleverly allows it to comfortably f...
Category

21st Century and Contemporary Italian More Rings

Materials

White Diamond, 18k Gold

Bague cocktail en or 18 ct et platine sertie de diamants. Epoque vers 1960.
Located in VERSAILLES, FR
Bague en or 18 carat et platine ornée au centre d'un diamant de taille brillant , poids environ 1
Category

Mid-20th Century French Retro Cocktail Rings

Materials

Diamond, 18k Gold, Platinum

18 Ct Round Natural Cabochon Lapis Lazuli Ring in 14 Kt Yellow Gold, Estate
Located in New York, NY
Vintage Beautiful Filigree Ring in 14 Karat yellow gold This is a ring which has a 18 carat of
Category

Early 2000s Cocktail Rings

Materials

Lapis Lazuli, Yellow Gold, 14k Gold

Bague En or 18 ct de Forme Marquise Ornée D’un Saphir De 3, 80 cts Et Diamants
Located in VERSAILLES, FR
Ravissante bague en or 18 carats de forme marquise ornée au centre d’un saphir de Ceylan pesant
Category

21st Century and Contemporary French Baroque Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

1, 72 ct Diamond Baguette Ring 18 k white gold
Located in Bad Kissingen, DE
18 ct white gold Fineness punched 18k 6 baguette diamonds together 1,72 ct weight 12,3 gram Ring
Category

21st Century and Contemporary German Band Rings

Materials

Diamond, 18k Gold

Tahitian pearl in white gold 18 k
Located in Bad Kissingen, DE
The pendant is ca 30 mm long and a clip 18 ct white gold
Category

21st Century and Contemporary European Pendant Necklaces

Tahitian pearl in white gold 18 k
Tahitian pearl in white gold 18 k
Free Shipping
H 0.28 in Dm 0.4 in
Princess Cut Diamond Invisible Setting Flexible Bracelet in 18 Carat White Gold
Located in London, GB
Princess Cut Diamond Invisible Setting Flexible Bracelet in 18 ct White Gold An infinite mechanical
Category

2010s British Modern Tennis Bracelets

Materials

White Diamond, Diamond, 18k Gold, White Gold

Vintage sapphire diamond 18 k gold 1930-40
Located in Bad Kissingen, DE
18 ct Gold center one diamond ca 0,75 ct right and left. 2. dark sapphire ca 1,5 ct left and right
Category

Vintage 1930s American Band Rings

Materials

18k Gold

Diamond Single Stone Solitaire Stud Surrounded by Halo Cluster 1.20 ct Earrings
Located in London, GB
glistening diamonds reflecting from every angle. Set in 18 ct white gold with easy to wear pin and push on
Category

2010s British Modern Stud Earrings

Materials

White Diamond, 18k Gold

Estate Emerald Three-Stone Ring, 18 Karat Yellow Gold and Diamonds
Located in New York, NY
and bottom of the setting. Marks: 18 ct Size 8.25
Category

20th Century Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Men's Emerald and Enamel Ring
Located in New York, NY
Men's Emerald and Black Enamel Ring 18 ct matte white gold 8.07 ct center emerald
Category

Early 2000s American Cocktail Rings

Materials

Emerald, Enamel

Citrine and Diamond Ring in 18K Yellow Gold, circa 1960s
Located in Beverly Hills, CA
citrine weighing 18 ct. framed by eight round brilliant cut diamonds totaling 0.80 ct. with F-G color and
Category

20th Century Cocktail Rings

Materials

Citrine, Diamond, Yellow Gold, Gold, 18k Gold

8k Gold and Silver Cocktail Ring with Black Brilliant Cut Diamonds and Quartz
By Emre Osmanlar
Located in ISTANBUL, TR
5.5 ct Black Brilliant Cut Diamond 18 ct Smoky Quartz 7 g 8 K Gold 19 g 925 Silver
Category

2010s Fashion Rings

Amethyst Necklace in 18ct Gold
Located in Bad Kissingen, DE
18 ct yellow gold Set Amethyst drops Length: 43 cm Wide: 12 mm Front Length: 4 cm weight: 151,9
Category

21st Century and Contemporary German Empire Drop Necklaces

Materials

Amethyst, Gold

Diana M. Colombian Emerald and Diamond Earrings
By Diana M. Jewels
Located in New York, NY
Luxurious French Emerald Earrings. 18 Ct. of Natural cabochon Colombian Emeralds with 15.00 Ct
Category

Mid-20th Century American Art Deco Clip-on Earrings

Materials

Diamond, Emerald, Platinum

Mid-Century Sapphire, Ruby and Diamond Platinum Ring
Located in Beverly Hills, CA
weighing 18 ct. surrounded by ten carved cabochon rubies weighting 5 ct. Accented by a single rose gold
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Ruby, Sapphire, Rose Gold, Platinum

Fantastic 18 Karat Yellow Gold Emerald and Diamond Bracelet
Located in Zurich, Zollstrasse
color, si clarity. Length 18 ct. 71.59 grams. Masterfully handcrafted piece! Authenticity and money
Category

Vintage 1980s Unknown Contemporary Link Bracelets

Materials

Emerald, Diamond, 18k Gold, Yellow Gold

ANTIQUE DIAMOND 5-STONE RING
Located in New York, NY
pinky ring...or a delicate hand! Hallmarked 18 CT.
Category

Antique Late 19th Century Three-Stone Rings

Materials

Diamond, 18k Gold

Single Stone, Solitaire Round Diamond 0.75ct Engagement Ring by Boodles
By Boodle & Dunthorne
Located in London, GB
Single stone diamond solitaire engagement ring by Boodles in 18 ct yellow gold. Made from solid
Category

1990s British Modern Engagement Rings

Materials

White Diamond, 18k Gold

GRS Certified Burma Ruby 1.04 & 1.06 Ct Diamonds Earrings
Located in Dubai, UAE
Clarity - VS o White gold 18 ct
Category

2010s Burmese Drop Earrings

Materials

Diamond, Ruby, 18k Gold

GRS Certified Burma Ruby 1.04 & 1.06 Ct Diamonds Earrings
GRS Certified Burma Ruby 1.04 & 1.06 Ct Diamonds Earrings
Free Shipping
W 0.4 in D 0.16 in L 1.99 in
Glamorous Art Deco Diamond Platinum Bracelet
Located in Zurich, Zollstrasse
cut Diamonds of ca. 18 ct. Wesselton/Crystal, vs/si. Length: 18 cm. Width: 2.7cm
Category

Vintage 1920s Unknown Art Deco Retro Bracelets

Materials

White Diamond, Platinum

Glamorous Art Deco Diamond Platinum Bracelet
Glamorous Art Deco Diamond Platinum Bracelet
Free Shipping
W 1.07 in L 7.09 in
Pearl, Sapphire and Diamond Bracelet
Located in New York, NY
18 ct.
Category

Vintage 1980s American Link Bracelets

Materials

Diamond, Pearl, Sapphire, 18k Gold

  • 1
  • ...
Get Updated with New Arrivals
Save "18 Ct", and we’ll notify you when there are new listings in this category.

18 Ct For Sale on 1stDibs

Find the exact 18 ct you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. Our collection of these items for sale includes 1315 vintage editions and 2839 modern creations to choose from as well. Making the right choice when shopping for a 18 ct may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. A 18 ct from Sarosi By Timeless Gems, LB Exclusive and David Jerome — each of whom created a beautiful version of this treasured accessory — is worth considering. A 18 ct can be a stylish choice for most occasions, but Diamond rings, from our inventory of 3254, can add a particularly distinctive touch to your look, day or night. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and cushion cut cut versions available here, too. When shopping for a 18 ct, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 18 Ct?

Prices for a 18 ct can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $240 and can go as high as $35,499,968, while this accessory, on average, fetches $5,349.