18 Ct Diamond
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3,638
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527
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306
386
390
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962
427
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283
242
14,477
5,352
187
19,962
54
18,838
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8,373
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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, Yellow Gold, 14k Gold
18 Karat White Gold Filigree and Diamond Ring
Located in Washington Depot, CT
x 13 mm. Shank measures 2 mm.
Approximate total diamond weight: .18 ct.
Diamond color: J-K
Category
20th Century Cocktail Rings
Materials
Diamond, White Gold
18 Karat Yellow Gold Opal and Diamond Ring
Located in Washington Depot, CT
: 18 mm. Shank: 5 mm.
Approximate total diamond weight: .18 ct.
Diamond color: H-I
Diamond
Category
20th Century Fashion Rings
Materials
Diamond, Opal, 18k Gold, Yellow Gold
18 Karat White Gold and Diamond Star Ring Size 6.5
Located in Washington Depot, CT
total diamond weight: .18 ct.
Diamond color: G
Diamond clarity: VS1
Ring Size: 6.5
Weight: 4.6 gr
Category
20th Century Cocktail Rings
Materials
Diamond, White Gold
18 Karat White Gold Filigree Diamond Ring
Located in Washington Depot, CT
; .18 ct.
Diamond color: J-K
Diamond clarity: I1
Ring Size: 6
Weight: 2.1 dwt. / 3.4 gr.
Stamped
Category
20th Century Fashion Rings
Materials
Diamond, White Gold
10 Karat Yellow Gold and Diamond Heart Pendant
Located in Washington Depot, CT
brilliant cut diamonds set in classic 10K yellow gold.
Approximate total diamond weight: .18 ct.
Diamond
Category
20th Century Pendant Necklaces
Materials
Diamond, Yellow Gold
14 Karat Yellow Sapphire and Diamond Ring
Located in Washington Depot, CT
.
Approximate total diamond weight: .18 ct.
Diamond color: G-H
Diamond clarity: SI1-I1
Ring Size: 7
Category
20th Century Fashion Rings
Materials
Diamond, Blue Sapphire, Yellow Gold
14 Karat Yellow Gold Natural Sapphire and Diamond Earrings
Located in Washington Depot, CT
weight: .18 ct.
Diamond color: G-H
Diamond clarity: SI1
Size: 21 mm x 3 mm
Weight: 2.5 dwt. / 4.0
Category
20th Century Hoop Earrings
Materials
Diamond, Sapphire, Yellow Gold
14 Karat Yellow Gold and Diamond Band Ring
Located in Washington Depot, CT
.
Approximate total diamond weight: .18 ct.
Diamond color: J-K
Diamond clarity: I1-I3
Size: 6
Weight
Category
20th Century Band Rings
Materials
Diamond, Yellow Gold
14 Karat White Gold and Diamond Band Ring Size 7 #17054
Located in Washington Depot, CT
14 Karat White Gold and Diamond Band Ring Size 7
This sparkling band features 18 round brilliant
Category
21st Century and Contemporary Wedding Rings
Materials
Diamond, 14k Gold, White Gold
14 Karat White Gold and Diamond Band Ring
Located in Washington Depot, CT
diamond weight: .18 ct.
Diamond color: J-K
Diamond clarity: SI1
Size: 7
Weight: 0.9 dwt. / 1.4 gr
Category
20th Century Band Rings
Materials
Diamond, 14k Gold, White Gold
14 Karat White Gold Diamond Hoop Earrings #14928
Located in Washington Depot, CT
diamond weight: .18 ct.
Diamond clarity: VS
Diamond color: G
Size: 20 mm x 3 mm
Weight: 2.0 dwt
Category
20th Century Hoop Earrings
Materials
White Diamond, Gold, 14k Gold, White Gold
14 Karat White Gold Diamond Pendant Necklace
Located in Washington Depot, CT
.
Approximate total diamond weight: .18 ct.
Diamond color: H
Diamond clarity: I1
Size: 18 inches (necklace)
9
Category
20th Century Pendant Necklaces
Materials
Diamond, White Gold
14 Karat White Gold and Diamond Band Ring Size 5.5
Located in Washington Depot, CT
.
Approximate total diamond weight: .18 ct.
Diamond color: H
Diamond clarity: VS2
Ring Size: 5.5
Weight: 4.9
Category
20th Century Band Rings
Materials
Diamond, White Gold
14 Karat Yellow/White Gold and Diamond Cross Pendant Necklace
By Esemco
Located in Washington Depot, CT
a classic cable necklace.
Approximate total diamond weight: .18 ct.
Diamond color: I-K
Diamond
Category
20th Century Pendant Necklaces
Materials
Diamond, 14k Gold, White Gold
14 Karat Yellow Gold Opal and Diamond Ring Size 8.25 #16352
Located in Washington Depot, CT
. Shank: 2 mm.
Approximate total diamond weight: .18 ct.
Diamond color: G
Diamond clarity: SI1
Ring
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Opal, 14k Gold, Yellow Gold
14K Yellow Gold Tanzanite & Diamond Ring Size 6.25 #16353
Located in Washington Depot, CT
yellow gold. Width: 10 mm. Shank: 2 mm.
Tanzanite weight: .34 ct.
Total diamond weight: .18 ct
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Tanzanite, 14k Gold, Yellow Gold
14 Karat Yellow Gold Sapphire and Diamond Ring
Located in Washington Depot, CT
weight: .18 ct.
Diamond color: G
Diamond clarity: SI
Ring Size: 6.25
Weight: 2.7 dwt. / 4.2 gr
Category
Late 20th Century Band Rings
Materials
Diamond, Sapphire, Yellow Gold
14 Karat White Gold Aquamarine and Diamond Ring #13330
Located in Washington Depot, CT
14K white gold. Shank: 1.5 mm.
Total Aquamarine weight: 2.30 cts.
Total diamond weight: .18 ct
Category
20th Century Cocktail Rings
Materials
Aquamarine, Diamond, White Gold
14 Karat Rose Gold Amethyst and Diamond Ring Size 8 #17070
Located in Washington Depot, CT
. Shank: 1.5 mm.
Approximate total diamond weight: .18 ct.
Diamond color: I-K
Diamond clarity: SI1-SI2
Category
21st Century and Contemporary Engagement Rings
Materials
Amethyst, Diamond, 14k Gold, Rose Gold
10 Karat White Gold Onyx and Diamond Ring
Located in Washington Depot, CT
total diamond weight: .18 ct.
Diamond color: I
Diamond clarity: SI1
Ring Size: 5.5
Weight: 2.6 dwt
Category
20th Century Fashion Rings
Materials
Multi-gemstone, White Gold
Vintage 14 Karat White Gold Blue Topaz and Diamond Ring Size 7.25 #15633
Located in Washington Depot, CT
. Width: 9.8 mm. Shank: 1.6 mm.
Approximate total diamond weight: .18 ct.
Diamond clarity: SI1-I1
Category
20th Century Engagement Rings
Materials
Diamond, Topaz, 14k Gold, White Gold
14 Karat Yellow Gold and Pearl Earrings #16723
Located in Washington Depot, CT
total diamond weight: .18 ct.
Diamond color: H-I
Diamond clarity: I1
Size: 17 mm x 13 mm
Stamped
Category
21st Century and Contemporary Drop Earrings
Materials
Diamond, Pearl, 14k Gold, Yellow Gold
Diamond Leaf Necklace, Yellow Gold, Charm Necklace, Nature Inspired
By Five Star Jewelry
Located in Austin, TX
Shape: Round Brilliant
Diamond Total Weight: .18 ct
Diamond Clarity: VS2 (Excellent, Eye Clean
Category
21st Century and Contemporary American Contemporary Link Necklaces
Materials
Diamond, 14k Gold, Yellow Gold
0.25 CT Round White Diamond 18 KT Yellow Gold Solitaire Gents Signet Ring
By Hasbani Diamonds
Located in London, GB
0.25 Round Brilliant White Diamond Men's Signet Style ring is set in 18 Karat Yellow Gold. Size UK
Category
2010s British Modern Signet Rings
Materials
Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold
Ruby 1.29 Ct Cluster Pendant 18 Kt White Gold Round Brilliant 0.60 Carat Diamond
By Hasbani Diamonds
Located in London, GB
with other gemstones, such as emerald and sapphire.
18 Karat White Gold
Diamond weight: 0.60 Carat
Category
2010s British Modern Pendant Necklaces
Materials
Chalcedony, Turquoise, Citrine, Other, Diamond, White Diamond, Emerald, ...
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W 0.48 in L 0.79 in
Diamond 0.50 CT Round Baguette Princess Cut 18KT White Gold Stud Earrings
By Hasbani Diamonds
Located in London, GB
From the classic Hasbani Diamonds essential collection of fine jewellery, a total 0.50 Carat Round
Category
2010s British Modern Stud Earrings
Materials
Diamond, White Diamond, Gold, 18k Gold, White Gold
NO RESERVE! 1.78 Ct Fancy Light Pink Diamond Tennis 14K White gold Bracelet
By Diamonds Mine
Located in Ramat Gan, IL
Length: 18 cm
Side Stones:
___________
Natural Diamonds
Cut: Round Brilliant
Carat: 1.78 cttw / 94
Category
2010s Art Deco Tennis Bracelets
Materials
Diamond, Pink Diamond, 14k Gold, White Gold
18 Karat Yellow Gold and White Diamonds Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Brilliant Diamonds GVS+ = 0.57 ct
Ring size 54 mm
Made in Italy
Category
2010s Contemporary More Jewelry
Materials
Diamond, White Diamond, 18k Gold, Yellow Gold
18 Karat Yellow Gold and White Diamonds Bangle
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Brilliant Diamonds GVS+ = 2.50 ct
Bracelet size 57 x 49 mm
Made in Italy
Category
2010s Contemporary Bangles
Materials
Diamond, White Diamond, 18k Gold, Yellow Gold
18 Karat White Gold, White Diamonds Stiletto Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
diamonds.
Stiletto Earrings in 18K White Gold
Round Brilliant Diamonds GVS+ = 4.87 ct
Diamond pears = 0.70
Category
2010s Contemporary Chandelier Earrings
Materials
Diamond, White Diamond, 18k Gold, White Gold
18 Karat Rose Gold and White Diamonds Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Brilliant Diamonds GVS+ = 0.57 ct
Ring size 54 mm
Made in Italy
Category
2010s Contemporary More Jewelry
Materials
Diamond, White Diamond, 18k Gold, Rose Gold
18 Karat Yellow Gold and White Diamonds Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Yellow Gold
Round Brilliant Diamonds GVS+ = 0.84 ct
Ring size 54.5
Made in Italy
Category
2010s Contemporary More Jewelry
Materials
Diamond, White Diamond, 18k Gold, Yellow Gold
18 Karat Rose Gold and White Diamonds Bangle
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Brilliant Diamonds GVS+ = 2.50 ct
Bracelet size 57 x 49 mm
Made in Italy
Category
2010s Contemporary Bangles
Materials
White Diamond, Diamond, Rose Gold, 18k Gold
1.33 CT GIA Certified Yellow Pear Shape Cut Diamond Double Halo Engagement Ring
By Hasbani Diamonds
Located in London, GB
This Stunning bespoke GIA Certified 0.87 Carat Natural Fancy Light Yellow Pear Shaped Diamond which
Category
2010s British Modern Engagement Rings
Materials
White Diamond, Yellow Diamond, Diamond, Gold, 18k Gold, White Gold
18 Karat Yellow Gold, White Diamonds and Emerald Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Yellow Gold
Round Brilliant Diamonds GVS+ = 0.07 ct
Emerald pear = 3.34 ct (GIA certified natural Zambian
Category
2010s Contemporary More Jewelry
Materials
Diamond, White Diamond, Emerald, 18k Gold, Yellow Gold
1.30 Ct Sapphire .90 Ct Diamond 18 KT Trilogy Ring
Located in Napoli, IT
This very pretty Diamond & Sapphire ring is 1960 ca.
Hand fabricated mount of solid 18 Kt white
Category
Mid-20th Century European Contemporary Three-Stone Rings
Materials
Diamond, Sapphire, 18k Gold
18 kt White Gold , 0.38 ct White & 1.6 ct Cognac Diamonds
Located in Antwerp, BE
Ring white gold with white and cognac diamonds
Material : 18 kt. white gold
Diamonds: white
Category
21st Century and Contemporary Belgian Artisan Cocktail Rings
Materials
White Diamond, Brown Diamond, Diamond, 18k Gold, White Gold
1.39 Carat Oval Cut Emerald and 0.42 Ct Natural Diamond Milgrain Flower ref1960
By Diamond Town
Located in New York, NY
resplendent halo of 0.42 carats of round, natural white diamonds. The impeccable craftsmanship is evident in
Category
21st Century and Contemporary Contemporary Pendant Necklaces
Materials
Diamond, Sapphire, 18k Gold, White Gold
18 Karat Yellow Gold, White Diamonds and Turquoise Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
)
Round Brilliant Diamonds GVS+ = 0.57 ct
Ring size 54 mm
Made in Italy
This video contains multiple
Category
2010s Contemporary More Jewelry
Materials
White Diamond, Turquoise, Diamond, Yellow Gold, 18k Gold
1.16 Carat Oval Cut Emerald and 0.35 Ct Natural Diamond Milgrain Flower ref1971
By Diamond Town
Located in New York, NY
. Enveloping this emerald is a delicate halo of round natural diamonds, totaling 0.35 carats, each one
Category
21st Century and Contemporary Contemporary Pendant Necklaces
Materials
Diamond, Emerald, 18k Gold, White Gold
18 Karat Rose Gold, White Diamonds and Coral Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
)
Round Brilliant Diamonds GVS+ = 0.57 ct
Ring size 54 mm
Made in Italy
Category
2010s Contemporary More Jewelry
Materials
Coral, Diamond, White Diamond, 18k Gold, Rose Gold
2 ct Diamond 18 k gold
Located in Bad Kissingen, DE
18 k yellow gold
2,01 ct Diamond brillant cut I/si1
weight 6,92 gram
size 69
This is an excellent
Category
21st Century and Contemporary German Solitaire Rings
Materials
18k Gold
18 Karat Yellow Gold, White Diamonds and Turquoise Bangle
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Diamonds GVS+ = 2.50 ct
Made in Italy
Category
2010s Contemporary Bangles
Materials
Diamond, White Diamond, Turquoise, 18k Gold, Yellow Gold
18 Karat Rose Gold, White Diamonds and Coral Bangle
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Nile arabesque motif.
Bracelet crafted in 18K Rose Gold (8 mm) and Coral
Round Brilliant Diamonds GVS
Category
2010s Contemporary Bangles
Materials
Diamond, White Diamond, Coral, 18k Gold, Rose 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
1.26 Carat Oval Cut Emerald and 0.22 Ct Natural Diamond Pendant in 18k ref1986
By Diamond Town
Located in New York, NY
Diamond: Round cut, 0.22 carats
Set in 18k White and Yellow Gold.
Chain is 18", with an additional closure
Category
21st Century and Contemporary Contemporary Pendant Necklaces
Materials
Diamond, Emerald, 18k Gold, White Gold, Yellow Gold
20.00 Ct Heart Amethyst 2.70 Ct Diamond 18 Kt Drop Earrings
Located in Napoli, IT
– complemented by 2.70 Ct of round cut Diamonds varying in size to fit the design
Diamonds rated between G VVS
Category
Vintage 1960s European Contemporary Drop Earrings
Materials
Amethyst, Diamond, 18k Gold
18 Karat Rose Gold, White Diamonds and Coral Hoop Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
Coral
Round Brilliant Diamonds GVS+ = 1.40 ct
Earring size 36 x 37 mm
Made in Italy
Category
2010s Contemporary Hoop Earrings
Materials
Coral, Diamond, White Diamond, 18k Gold, Rose Gold
27.00 Ct Aquamarine Diamond 18 Kt ring
Located in Napoli, IT
setting for 27.00 Ct. (24 mm. x 17 mm.) amazing sparkle and glow
Approx. 70 Ct of old Swiss cut Diamonds
Category
Mid-20th Century Italian Contemporary Cluster Rings
Materials
Aquamarine, Diamond, 18k Gold
18 Karat White Gold, White Diamonds and Sapphires Stiletto Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
diamonds.
Stiletto Earrings crafted in 18K White Gold
Round Brilliant Diamonds GVS+ = 2.12 ct
Sapphires
Category
2010s Contemporary Chandelier Earrings
Materials
Diamond, White Diamond, Sapphire, 18k Gold, White Gold
18 Karat Rose Gold, White Diamonds, Rubies and Rubellite Earclips
By VANLELES DIAMONDS
Located in Mayfair, London, GB
diamonds.
Earclips crafted in 18K Rose Gold
Round Brilliant Diamonds GVS+ = 3.53 ct
Ruby cabochons = 1.94
Category
2010s Contemporary Lever-Back Earrings
Materials
Diamond, White Diamond, Rubelite, Ruby, 18k Gold, Rose Gold
Victorian 4.40 Ct Diamond 3.0 Ct Ruby 18 KT Crescent Brooch
Located in Napoli, IT
cushion cut old mine Diamonds alternated by natura Red Rubies
Approx 4.40 Ct of bright white antique
Category
Antique 1870s European Victorian Brooches
Materials
Diamond, Ruby, 18k Gold
Victorian 3.20 Ct Natural Turquoise 1.40 Ct Diamond 18 Kt Ring
Located in Napoli, IT
Pretty Victorian Turquoise and Diamond cluster ring, 1880 ca
Hand crafted of solid 18 KT gold
Category
Antique Late 19th Century European Victorian Cluster Rings
Materials
Diamond, Turquoise, 18k Gold
Retro 51.00 Ct Aquamarine .90 Ct Diamond Tank 18 KT Bracelet
Located in Napoli, IT
.) – 32 brilliant cut diamonds totalling approx .90 Ct (G/VVS)
Measures: Centrepiece is 26 x 29 mm. (h. x
Category
Vintage 1930s European Retro Retro Bracelets
Materials
Aquamarine, Diamond, 18k Gold
Edwardian .85 Ct Diamond .35 Ct Sapphire 18 KT Platinum Ring
Located in Napoli, IT
distinction and character
Diamonds are old mine cut . 60 C. total with a .25 Ct the centre – G VVS/VS – high
Category
Antique Early 1900s European Edwardian Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Platinum
Vintage 1.80 Ct Diamond and 18 Ct Yellow Gold Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive vintage 1.80 carat diamond and 18 carat yellow gold dress ring; part of our
Category
20th Century Cocktail Rings
Materials
Diamond, 18k Gold, Yellow Gold
Edwardian 6.00 Ct Harlequin Opal 1.80 Ct Diamond 18 KT Pendant
Located in Napoli, IT
Complemented by 1.80 Ct bright white old cut Diamonds between old mine and old European cut providing
Category
Early 20th Century European Edwardian Pendant Necklaces
Materials
Diamond, Opal, 18k Gold, 9k Gold, Platinum
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H 1.89 in W 0.56 in L 17.92 in
Victorian 1.00 Ct Natural Ruby 1.60 Ct Diamond 18 KT ring
Located in Napoli, IT
big amount of white sparkle, approx 1.60 Ct of Diamond content – rated G VVS/SI
Centrally set with a
Category
Antique Late 19th Century European Victorian Cluster Rings
Materials
Diamond, Ruby, 18k Gold
Antique 0.63 Ct Sapphire and 0.77 Ct Diamond, 18 Ct Yellow Gold Snake Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 0.63 carat sapphire and 0.77 carat diamond, 18 carat yellow
Category
20th Century Unknown Fashion Rings
Materials
Diamond, Sapphire, 18k Gold, Yellow Gold
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18 Ct Diamond For Sale on 1stDibs
Surely you’ll find the exact 18 ct 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. You can easily find a 18050 antique edition and 37889 modern creations to choose from as well. Finding the perfect 18 ct 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. Creating a 18 ct diamond has been a part of the legacy of many jewelers, but those produced by Cartier, VR Jewels and LB Exclusive are consistently popular. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and oval cut cut versions available here, too. Finding a 18 ct diamond for sale for women should be easy, but there are 16920 pieces available to browse for unisex as well as men, too.
How Much is a 18 Ct Diamond?
On average, a 18 ct diamond at 1stDibs sells for $4,919, while they’re typically $1 on the low end and $7,000,000 for the highest priced versions of this item.
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