18k Diamond
2,477
to
25,374
161,814
59,218
54,938
39,833
13,199
5,759
5,292
4,976
2,816
2,393
642
638
614
467
465
201
161
38
21
4
428
6,387
69,238
171,112
2,097
1,616
2,317
1,804
1,886
3,227
4,948
5,746
7,346
7,199
262
9,403
4,690
3,943
3,210
3,140
172,656
73,319
3,969
247,778
2,166
237,223
209,686
81,445
67,799
19,422
222,544
53,224
31,179
20,099
20,343
568
414
238
66024
17176
14518
8485
7252
to
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Giovane Italy Estate 18K Diamond Earrings
By Giovane
Located in New York, NY
Giovane Italy Estate 18K Diamond Earrings
Reital $20,000
Category
20th Century Italian Contemporary Chandelier Earrings
Materials
Diamond, 18k Gold, Yellow Gold
18K Diamond Heart Stud Earrings
Located in Watertown, MA
18K DIAMOND HEART STUD EARRINGS
18K Yellow Gold
Signature: MH or HW
Weight (g): 11.2
Diamond
Category
21st Century and Contemporary North American Contemporary Stud Earrings
Materials
Diamond, 18k Gold
18K Diamond and Ruby Ring
Located in Palm Beach, FL
18K Diamond and Ruby Ring
Featuring a round, brilliant-cut diamond center stone, weighing
Category
20th Century Cocktail Rings
Materials
Diamond, Ruby
18K Diamond and Citrine Ring
Located in Toronto, ON
18K Diamond and Citrine Ring. The Ring set with a sherry colour fancy cut citrine, one border
Category
Late 20th Century More Rings
Materials
Citrine, Diamond, 18k Gold
Jewel of Ocean Garrad 18k Diamond Pendent
Located in New York, NY
GARRAD 18K Diamond 15" Pendent
1.3 Carts Diamonds
Category
Mid-20th Century Unknown Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold
Chaumet Paris, Ring, WG 18K, Diamonds, RW: 46
By Chaumet
Located in Stuttgart, BW
CHAUMET PARIS. Ring. WG 18K. diamonds
Category
Late 20th Century More Rings
Materials
Diamond, Gold
Salavetti Signed 18K Diamond and Sapphire Bracelet
By Salavetti
Located in Kingston, NY
Salavetti Signed 18K Diamond and Sapphire Bracelet. Weighs 22.50 dwts. Measures 6"L. Clasp works
Category
20th Century Link Bracelets
Materials
Diamond, Sapphire
Jewel Of Ocean Mauboussin 18K Diamonds Hart Pendent
By Mauboussin
Located in New York, NY
Mauboussin 18K Diamonds Hart 18" Pendent
1.5 Carts Diamonds
Silk Cord
Category
Late 20th Century Unknown Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
Van Cleef and Arpels 18k Diamond Dome Earrings
By Van Cleef & Arpels
Located in San Antonio, TX
A pair of 18k Diamond Dome Earrings by Van Cleef and Arpels.
Category
Vintage 1950s American Retro Clip-on Earrings
Materials
Diamond, 18k Gold
Pomellato Yellow Gold 18k, Diamonds and Garnet Cabochon Chimera Ring
By Pomellato
Located in Roma, IT
Pomellato Ring
Chimera collection
Material yellow gold 18k, Diamonds, Garnet stone Cabochon
Weight
Category
21st Century and Contemporary Italian Fashion Rings
Materials
Diamond, Garnet, Yellow Gold
Olympusart Certified, White Gold 18 K, Diamond Black, New Century Fashion Ring
Located in Istanbul, TR
Olympus Art Cretified, White Gold, Diamond Black Fashion ROUND Ring
White Gold 18 K,
Diamond 5.07
Category
2010s Turkish Modern Fashion Rings
Materials
Diamond, White Gold
PANIM 18K Diamond Taviz 18K White Gold Choker Necklace
By PANIM
Located in Tsim Sha Tsui, Hong Kong
PANIM 18K Diamond Taviz 18K White Gold Choker Necklace
A chic and elegant 16" link necklace set
Category
21st Century and Contemporary Indian Modern Choker Necklaces
Materials
Diamond, White Diamond, 18k Gold, White Gold
18k Diamond Baguette Diamond Cocktail Ring 3.73 Carats
Located in Laguna Hills, CA
Lady's 18k Diamond Baguette Diamond Cocktail Ring 3.73 Carats
The diamond cocktail ring is a
Category
21st Century and Contemporary North American Contemporary Cocktail Rings
Materials
Diamond, White Gold, 18k Gold
Hakimoto 14x15mm Golden South Sea & Tahitian Baroque Pearl 18K Diamond Clasp
Located in New York, NY
Baroque Pearl Necklace
18K Diamond Clasp
105.5 Grams 16.5" long
23 Pearls 14x15mm
Category
21st Century and Contemporary American Modern Choker Necklaces
Materials
Pearl, Black Pearl, South Sea Pearl, Diamond, 18k Gold, White Gold
Impressive 18k Diamonds Yellow Gold Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Yellow Gold 18 K
Diamonds 0.67 Cts/45 Pcs
Weight 11,14 grams
Length 42 cm (Adjustable
Category
2010s More Necklaces
Materials
Diamond, Yellow Gold
Contemporary 18k Diamond and Rock Crystal Crowned Heart Earrings
Located in Hummelstown, PA
brilliant-cut diamond set heart, backed in rock crystal and crowned with a shimmering brilliant-cut diamond
Category
2010s Art Nouveau Dangle Earrings
Materials
Crystal, Diamond, Rock Crystal, 18k Gold
Hakimoto 29" long Golden South Sea Baroque & Tanzanite 18K Diamond Clasp
Located in New York, NY
Pearl and Tanzanite
18K Diamond Clasp
29" Long and 143 Grams
24 Golden South Sea Baroque Pearls 11x15mm
Category
21st Century and Contemporary American Modern Rope Necklaces
Materials
Diamond, Pearl, South Sea Pearl, Tanzanite, 18k Gold, White Gold
18K diamond ring
Located in Hong Kong, CN
White gold/ Yellow gold/ Rose gold available
Custom size and color
*Diamond weight in pic: 0.80
Category
21st Century and Contemporary Hong Kong Fashion Rings
Materials
Diamond, 18k Gold
18k Diamond Earring
Located in Hong Kong, CN
Rose cut used: 0.64crts
Briolette used: 0.69crts
Round diamond used: 0.67crts
Category
21st Century and Contemporary Hong Kong Stud Earrings
Materials
Diamond, 18k Gold, Rose Gold
18K Diamond Ring
Located in Hong Kong, CN
Diamond used: 1.77crts
Category
21st Century and Contemporary Hong Kong Fashion Rings
Materials
Diamond, 18k Gold, Rose Gold
Hakimoto 14.4x12 mm Tahitian South Sea Pearl Necklace with 18K Diamond Clasp
Located in New York, NY
Manufactures List Price $48,000
18K Diamond White Gold Clasp
Category
21st Century and Contemporary American Modern Choker Necklaces
Materials
Diamond, Pearl, Black Pearl, South Sea Pearl, White Gold
18k Diamond Bracelet
Located in Hong Kong, CN
Diamond used: 2.53crts
Category
21st Century and Contemporary Hong Kong Charm Bracelets
Materials
Diamond
18k Diamond Ring
Located in Hong Kong, CN
Diamond used: 4/0.70+0.28crts
Total crt: 1.98crts
Category
21st Century and Contemporary Hong Kong Fashion Rings
Materials
Diamond
Hakimoto 14.5x12 mm Tahitian & Golden South Sea Pearl 18K Diamond Clasp Necklace
Located in New York, NY
South Sea 12x14.5mm Pearl 18K Diamond Clasp Necklace
17.5" Long 104.4 grams
Slightly spotted
Category
21st Century and Contemporary American Contemporary Choker Necklaces
Materials
Diamond, Pearl, Black Pearl, South Sea Pearl, 18k Gold
Free Shipping
L 17.5 in.
Hakimoto 15x12 mm Tahitian South Sea Baroque Pearl Necklace 18K Diamond Clasp
Located in New York, NY
Pearl Necklace
18K Diamond White Gold Clasp
12x15mm
18" long
104 Grams
High Luster minor spots
Category
21st Century and Contemporary American Modern Choker Necklaces
Materials
Diamond, Pearl, Black Pearl, South Sea Pearl, 18k Gold, White Gold
Hakimoto 12.7x11 mm Black Tahitian South Sea Pearl 18K Diamonds Clasp Necklace
Located in New York, NY
Hakimoto By Jewel Of Ocean
33 Gray Black 11x12.7mm Tahitian South Sea Pearl 18K Diamonds 0.15
Category
21st Century and Contemporary American Contemporary Choker Necklaces
Materials
Black Pearl, South Sea Pearl, Diamond, 18k Gold
Free Shipping
L 17.5 in.
Hakimoto 14x12 mm 37 Silver Tahitian South Sea 18K Diamond Clasp Necklace 22"
Located in New York, NY
12x14mm Tahitian South Sea 18K Diamond Clasp Necklace
22" Long 115.25 Grams High Luster good matched.
Category
21st Century and Contemporary American Contemporary Choker Necklaces
Materials
Diamond, Black Pearl, South Sea Pearl, 18k Gold
Hakimoto 50.5" Long 99 Natural Golden South Sea Pearl 10x14m 18K Diamonds Clasp
Located in New York, NY
Necklace 18K Diamonds Yellow Gold Clasp
50.5" Long and 248 Grams
It can become 3 Necklaces
Category
21st Century and Contemporary American Contemporary Rope Necklaces
Materials
Diamond, Pearl, South Sea Pearl, 18k Gold, Yellow Gold
Free Shipping
L 50.5 in.
Hakimoto 14.2x12 mm 29 Black Tahitian South Sea Pearl Necklace with 18K Diamond
Located in New York, NY
South Sea Pearl Necklace with 18K Diamond Clasp
16.5" Choker 84.8 Grams
Fine quality clean surface high
Category
21st Century and Contemporary American Contemporary Choker Necklaces
Materials
Diamond, Black Pearl, South Sea Pearl, 18k Gold
Free Shipping
L 16.5 in.
Hakimoto 39 Tahitian 17.5x15 mm Baroque Pearl Necklace 18K Diamond Clasp 30"long
Located in New York, NY
Pearl Necklace
18K Diamond White Gold Clasp
39 Tahitian Baroque Pearls Size 15.5x17.5mm
30" Long and 234
Category
21st Century and Contemporary American Baroque Rope Necklaces
Materials
Diamond, Pearl, Black Pearl, South Sea Pearl, 18k Gold, White Gold
Free Shipping
L 30 in.
Squirrel Brooch 18 K Diamond
Located in Bad Kissingen, DE
18 k gold
5,23 ct diamonds
1,67 ct Cabuchon Ruby
0,21 ct Tsavorit
13,7 grams
size ca 4 x 3,50 cm
Category
21st Century and Contemporary German Brooches
Materials
18k Gold
18K Diamond Eternity Band
By Rose and Choc
Located in Wallingford, CT
French pave fishtail setting with 2.5mm diamonds on 18k solid gold
Metal: 18k Gold
Stone: Natural
Category
2010s American Romantic Wedding Rings
Materials
Diamond, 18k Gold
18K Diamond Basketweave Hoops
Located in McLeansville, NC
Vintage 18 karat yellow gold diamond J hoop earrings. These earrings feature a basketweave design
Category
Vintage 1970s Hoop Earrings
Materials
Diamond, Gold, 18k Gold, Yellow Gold
Judith Ripka Two Sterling Silver 18K Diamond Smokey Topaz Enhancer Pendant
By Judith Ripka
Located in Washington Depot, CT
Judith Ripka Two Sterling Silver 18K Diamond Smokey Topaz Enhancer Pendant
This is a stunning Two
Category
20th Century Pendant Necklaces
Materials
Diamond, Topaz, Sterling Silver
Free Shipping
W 0.63 in. D 0.28 in. L 1.15 in.
Designer Seashell 18k Diamonds Yellow 18K Gold Stud Earrings for Her
By Natkina
Located in Montreux, CH
Earrings Yellow Gold 18 K
Diamonds D 1.12 Cts/152 Pcs
Weight 4,91 grams
With a heritage of
Category
2010s Stud Earrings
Materials
Diamond, Yellow Gold, 18k Gold
Rainbow Multi Sapphire 18k Diamonds Rose Gold Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Rose Gold 18 K
Diamonds 0.52 Cts/69 Pcs
Multi Sapphire 1.13 Cts/15 Pcs
Weight 3.97 grams
Category
2010s More Necklaces
Materials
Sapphire, Diamond, Rose Gold
Impressive Multi Sapphire 18k Diamonds Rose Gold Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Rose Gold 18 K
Diamonds 1.02 Cts/76 Pcs
Multi Sapphire 16.58 Cts/39 Pcs
Weight 16.2
Category
2010s More Necklaces
Materials
Diamond, Sapphire, Rose Gold
18k Diamond Oval Ring
Located in Hong Kong, CN
Oval used: 5/1.62crts
Diamond used: 0.34crts
Category
21st Century and Contemporary Hong Kong Fashion Rings
Materials
Diamond
Zydo 18k Diamond Flower Necklace 27.28 Carats VS-F Color
By ZYDO
Located in Laguna Hills, CA
47" Zydo 18K Diamond Necklace with Flowers 27.28 Carats VS-F Color. The diamonds shapes are rounds
Category
21st Century and Contemporary Italian Contemporary Chain Necklaces
Materials
Diamond, 18k Gold, White Gold
Colourful Sapphire 18k Diamonds Rose Gold 18K Rainbow Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Rose Gold 18 K
Diamonds 0.26 Cts/20 Pcs
Multi Sapphire 1.63 Cts/30 Pcs
Weigh 7,57 grams
Category
2010s More Necklaces
Materials
Sapphire, Diamond, Rose Gold
Multi Sapphire 18K Diamonds Rose Gold Colourful Pendant Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Rose Gold 18 K
Diamonds 0.28 Cts/45 Pcs
Multi Sapphire 12.58 Cts/40 Pcs
Weight 11,33
Category
2010s More Necklaces
Materials
Sapphire, Diamond, Rose Gold
Colourful Sapphire 18k Diamond Rose Gold Rainbow Peacock Necklace for Her
By Natkina
Located in Montreux, CH
Necklace Rose Gold 18 K
Diamonds 1.01 Cts/116 Pcs
Multi Sapphire 5.88 Cts/56 Pcs
Weight 12.45
Category
2010s More Necklaces
Materials
Sapphire, Diamond, Rose Gold
Panther Bracelet Brooch 18 K Diamonds
Located in Bad Kissingen, DE
18 k white gold
punchet 750
3,40 ct white diamonds
1,77 ct black diamonds
Eyes are emeralds
weight
Category
21st Century and Contemporary German Retro Bracelets
Materials
18k Gold
Large 18k Diamond Bee Brooch
Located in Cincinnati, OH
diamonds line the edge of the wings in 18K white gold. Approximately .50tdw.
Bee's "body" is yellow
Category
Early 2000s Brooches
Materials
Diamond, Onyx, 18k Gold
Estate 18K Diamond Emerald Ring
Located in Cincinnati, OH
round brilliant diamond, approximately .92 tdw. K-L color, VS clarity.
38 straight baguette diamonds
Category
Early 20th Century Unknown Cluster Rings
Materials
Diamond, Emerald, 18k Gold
Sal Praschnik 18K Diamond Brooch
By Sal Praschnik
Located in Cincinnati, OH
diamonds set in 18 karat white gold.
30 round full cut diamonds, approximately .30tdw, VS-SI clarity, G-H
Category
Early 2000s American Brooches
Materials
Diamond, 18k Gold
Vintage Woven 18K Diamond Bracelet
Located in Winter Springs, FL
An incredible bracelet circa 1960’s done in 18K and set with approximately 9.20cttw blindingly
Category
Vintage 1960s Contemporary Cuff Bracelets
Materials
Diamond, 18k Gold
18K Diamond Drop Huggy Earrings
Located in Miami, FL
18K white gold huggy style earrings with diamond drop.
Features
18K white gold
1.74 carat total
Category
2010s North American Modern Drop Earrings
Materials
Diamond, 18k Gold, White Gold
Vintage Gold 18k Diamond Ring
Located in Uccle, BE
Gold 18k ring.
Vintage ring set with a center diamond of approximately 1.30 Carats ( Estimated G
Category
Early 2000s European Modern Wedding Rings
Materials
Diamond, Gold, 18k Gold
18K Diamond Ribbon Bow Brooch
Located in Idar-Oberstein, DE
A beautiful Diamond Ribbon Bow Brooch with ca. 7 carats of diamonds (D-F/IF-VVS).
Category
Vintage 1980s Brooches
Materials
Diamond, 18k Gold
18k Diamond Designed Unique Ring
Located in Hong Kong, CN
Briolette diamond used: 3pcs/0.74crts
Rose cut diamond used: 5pcs/0.75crts
Round diamond used
Category
21st Century and Contemporary Hong Kong Fashion Rings
Materials
Diamond
18 K Diamond Double Cross Designer Ring
Located in Derby, NY
This unique double cross ring will look great on your finger. With 107 round brilliant diamonds
Category
21st Century and Contemporary Modern Fashion Rings
Materials
Diamond, 18k Gold, Rose Gold
18 K Diamond and Fine Amethyst Ring
Located in Aspen, CO
Amethyst, diamond and 18K yellow gold defines this well made ring. The 30 diamonds are round
Category
21st Century and Contemporary British Contemporary Fashion Rings
Materials
Amethyst, Diamond, 18k Gold
18K Diamond Emerald Bracelet Yellow Gold
Located in Boca Raton, FL
Diamond Emerald Bracelet in 18K Yellow Gold. (15) Emerald Gemstones weighing 1.05 carats and (30
Category
2010s Retro Bracelets
Materials
Diamond, Emerald, 18k Gold, Yellow Gold
18k Diamond Key Pendant White Gold
Located in Boca Raton, FL
Diamond Key Pendant in 18K White Gold. (64) Round Brilliant Cut Diamonds weighing 1.50 carat total
Category
2010s Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold
18k Diamond Stud Earring . 0.84 CT
Located in Duluth, GA
Stud Diamond Earring 18k gold. 0.84CT
Category
2010s Hong Kong Contemporary Stud Earrings
Materials
Diamond, 18k Gold
18K Diamond Cabochon Ruby Scatter Pin
Located in Winter Springs, FL
This fabulous brooch has been done in 18K yellow gold and set with approximately 8.50cttw in H-I
Category
Late 20th Century Contemporary Brooches
Materials
Diamond, Ruby, 18k Gold
18K Diamond Cluster Earrings White Gold
Located in Boca Raton, FL
Diamond Cluster Earrings in 18K White Gold. Round Brilliant Cut Diamonds weighing 0.91ctw G-H in
Category
2010s Stud Earrings
Materials
Diamond, 18k Gold, White Gold
18K Diamond Dangle Earring White Gold
Located in Boca Raton, FL
Diamond Dangle Earring in 18K White Gold. (50) Round Brilliant Cut Diamonds weighing 0.45 carat
Category
2010s Dangle Earrings
Materials
Diamond, 18k Gold, White Gold
18K Diamond Cluster Earring White Gold
Located in Boca Raton, FL
Diamond Cluster Earring in 18K White Gold. Round Brilliant Cut Diamonds weighing 2.14 carat total
Category
2010s Drop Earrings
Materials
Diamond, 18k Gold, White Gold
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18k Diamond For Sale on 1stDibs
Surely you’ll find the exact 18k diamond you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Find an antique version now, or shop for 70169 vintage or 87665 modern creation for a more contemporary example of these cherished accessories. Finding the perfect 18k diamond 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. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Finding an appealing 18k diamond — no matter the origin — is easy, but Cartier, Van Cleef & Arpels and Tiffany & Co. each produced a popular version that is worth a look. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and brilliant cut alternatives. When shopping for a 18k diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.
How Much is a 18k Diamond?
On average, a 18k diamond at 1stDibs sells for $5,526, while they’re typically $1 on the low end and $135,979,328 for the highest priced versions of this item.
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18 K 30
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Ton 18
Baroque Tahitian Necklace
25 K Ring
Gold Squirrel
Station Bangle
Baroque Tahitian Pearl Necklace
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Marquise Petal
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2 Row Eternity Ring
Sherry Set