Skip to main content

18 Ct Flawless Diamond

10
to
9
56
56
108
85
36
18
13
7
6
5
4
3
3
3
3
2
2
2
2
1
1
1
26
14
6
4
3
Sort By
2.94 Ct Amethyst Diamond 18 K White Gold Ring
By ALPENGEM
Located in Territet, CH
This classy elegant 18 Karat White Gold ring features a flawless purple square shaped amethyst and
Category

2010s Contemporary More Rings

Materials

Amethyst, Diamond, White Gold

4.046 Ct Peridot Round Diamond 18 K Yellow Gold Ring
By ALPENGEM
Located in Territet, CH
Stylish and exquisite 18 K yellow gold ring featuring 3.82 Ct Pear shape Peridot. The gentle warm
Category

2010s Contemporary Fashion Rings

Materials

Diamond, Peridot, Yellow Gold

4.07 Ct Sapphire Garnet Diamond 18 K White Gold Earrings
By ALPENGEM
Located in Territet, CH
and diamond earrings with suspended flawless scissor cut purple garnets. These rich cold hue gems are
Category

2010s Contemporary Clip-on Earrings

Materials

Sapphire, Diamond, Garnet, 18k Gold

Luxurious 18 kt. Gold Earrings with 2.24 ct Natural Diamond - GIA Certificate
Located in רמת גן, IL
them virtually flawless to the naked eye. The earrings are also set with 0.23 carat of side diamonds in
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Estate 1.40 Ct Emerald .85 CT G VVS Diamond Cluster Stud Earrings
Located in Napoli, IT
crafted of solid 18 Kt white gold – tested Oval shaped set with two natural rich green Emeralds 1.40 Ct
Category

Vintage 1970s European Contemporary Stud Earrings

Materials

Diamond, Emerald, 18k Gold

3.80 Ct Natural Sapphire 1.0 Ct F/G IF/VVS Diamond ring
Located in Napoli, IT
1.0 Ct of best quality baguette Diamonds F/G – IF/VVS sensational white / flawless Diamonds
Category

1990s Italian Contemporary Engagement Rings

Materials

Diamond, Sapphire, 18k Gold

0.45 Ct. Si Clarity Hi Color Baguette Diamond Bangle Bracelet 18 Karat Rose Gold
Located in IN
Simple and elegant, this 18k Rose Gold Diamond studded Bracelet will make your look fashionable and
Category

21st Century and Contemporary Indian Modern Modern Bracelets

Materials

Diamond, 18k Gold, Rose Gold

18 kt. White Gold Ring with 2.20 ct Natural Diamonds with Pearl - AIG Cert
Located in רמת גן, IL
2.32 Carat Round Brilliant Flower Diamond Ring with a Gorgeous Pearl This stunning and one of a
Category

2010s Israeli Cluster Rings

Materials

Diamond, Pearl, 18k Gold, White Gold

18kt White Gold Ring With 2.5 ct Princess cut & 1 ct Brilliant cut Diamond
Located in Antwerp, BE
cut diamonds ( 2.5 Ct.) , 18 brilliant cut diamonds (1 Ct) Top Quality! Colour: D/E . Clarity
Category

21st Century and Contemporary Belgian Artisan Signet Rings

Materials

Diamond, 18k Gold, White Gold

Rare GIA Certified Type 2A I Flawless 6.00 Carat Natural Pink Oval Diamond Ring
Located in Tustin, CA
. Hallmarked 750 for 18 karat gold. PD (Pink Diamond) 5.01 ct and 2 D (Half-Moon Diamonds) 0.45 ct. Ring is a
Category

21st Century and Contemporary American Artisan Solitaire Rings

Materials

Diamond, Pink Diamond, 18k Gold, Rose Gold, White Gold

David Rosenberg 6.54 Ct Radiant Light Yellow GIA Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
important white, D flawless, natural fancy color diamonds and high jewels, allows us to focus on offering
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

Estate South Sea Pearl 1.20 Ct Brilliant Cut Diamonds Platinum Earrings
Located in Napoli, IT
free Making the centre point in a petal like border of 32 round brilliant cut Diamonds Approx 1.20 Ct
Category

Mid-20th Century European Contemporary Stud Earrings

Materials

Diamond, South Sea Pearl, Platinum

David Rosenberg 5.68 ct Fancy Light Yellow Radiant GIA Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 5.68 carat Radiant cut Fancy Light Yellow VS2 clarity is accompanied by a
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

David Rosenberg 4.03 Ct Radiant FIY/VS2 GIA Halo Diamond Engagement Wedding Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 4.03 carat Radiant cut Fancy Intense Yellow VS2 clarity is accompanied by
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

Serpent ring 18k / 7.61 ct. Lightning Ridge Black Opal/Diamond& sapphire 5.46cts
Located in Birmingham, MI
green sapphires and flawless diamonds are pave'-set in lustrous 18 k white gold. An exciting piece of
Category

2010s American Cocktail Rings

Materials

Diamond, Sapphire, Black Opal, 18k Gold

MOISEIKIN 18 Karat Gold Diamond Flower Ring
By MOISEIKIN
Located in Hong Kong, HK
Diamond 0.883 ct About Designer Viktor Moiseikin is one of the most gifted jewellery designer as well
Category

2010s Thai Contemporary Fashion Rings

Materials

Diamond, Ruby, Gold, 18k Gold

G.I.A. Certified 5.15 Carats Colombian Emerald 3 Ct Diamonds Cocktail Ring.
Located in Miami, FL
flawless natural earth mined white diamonds, adding brilliance and sophistication to the design. Set in a
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

18 Karat White Gold Tanzanite Diamond Sapphire Earrings
By MOISEIKIN
Located in Hong Kong, HK
, releasing the maximum light. 18K Gold Earrings 3020113036 Gold 18 K,Weight 14.57 g, 28 Diamond 0.78 ct 56
Category

2010s Russian Contemporary Lever-Back Earrings

Materials

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

MOISEIKIN 18 Karat White Gold Diamond Flower Ring
By MOISEIKIN
Located in Hong Kong, HK
enjoy the flawless quality of the diamonds set in a floral design. The ring is suitable for any dress
Category

2010s Russian Contemporary Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

MOISEIKIN 18 Karat Gold Diamond Burmese Spinel Ring
By MOISEIKIN
Located in Hong Kong, HK
,Weight 6.60 g,Size 17mm 1 Spinel, Pink, 0,38 ct (Mogok) 71 Diamond 0,965 ct Viktor Moiseikin is one of
Category

2010s Hong Kong Contemporary Fashion Rings

Materials

Diamond, Spinel, Gold, 18k Gold, White Gold

GSI Certified 14k Gold 0.2 Ct Natural Diamond G-VS Rose Ballet Dancer Necklace
By GLEAMIRE
Located in Los Angeles, CA
flawless and colorless diamonds, only the world's best diamonds are selected for your GLEAMIRE jewelry
Category

2010s Indian Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold

GSI Certified 14k Gold 0.5 Ct Natural Diamond Rose Heart Lock Key Charm Bracelet
By GLEAMIRE
Located in Los Angeles, CA
flawless and colorless diamonds, only the world's best diamonds are selected for your GLEAMIRE jewelry
Category

2010s Indian Contemporary Cuff Bracelets

Materials

Diamond, Rose Gold, 14k Gold

Moiseikin 18 Karat Gold Diamond Burmese Spinel Ring
By MOISEIKIN
Located in Hong Kong, HK
Ring 4010153015 Gold 18 K,Weight 5.49 g,Size 17 (Ru), 1 Spinel, Pink 0.5 ct 1 Spinel, Pink 0.31 ct 112
Category

2010s Hong Kong Contemporary Fashion Rings

Materials

Diamond, Spinel, Gold, 18k Gold, White Gold

Certified 10k Gold 0.15 Ct Natural Diamond Designer 2 Cuved V Crown Yellow Ring
By GLEAMIRE
Located in Los Angeles, CA
: Crafted in 14-karat/18-karat with 100% natural diamond and designed with versatility in mind. Your jewelry
Category

2010s Indian Contemporary Cocktail Rings

Materials

Diamond, 10k Gold, Yellow Gold

GIA Certified 1.30 Ct Minor Oil Emerald & Trillion Diamond 3-Stone Ring in 18K
By Gad & Co.
Located in Miami, FL
GIA-certified 1.30-carat natural minor oil emerald and trillion cut diamond 3-stone ring in 18
Category

2010s Zambian Modern Three-Stone Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

MOISEIKIN 18 Karat Gold Diamond Pink Sapphire Flower Ring
By MOISEIKIN
Located in Hong Kong, HK
Gold 18 K,Weight 4.66 g,Size 17 (mm diameter), 4 Diamond 0.151 ct 87 Sapphire 0.68ct 5 Ruby 0.065 ct
Category

2010s Hong Kong Contemporary Fashion Rings

Materials

Diamond, Ruby, Pink Sapphire, Gold, 18k Gold

Moiseikin 18 Karat Gold Diamond Indigo Tourmaline Handmade Earrings
By MOISEIKIN
Located in Hong Kong, HK
Tourmaline, indicolite, antique, – 3.82 ct. 6 Diamond, round 57, – 0.025 ct. 60 Diamond, round 57
Category

21st Century and Contemporary Russian Contemporary More Earrings

Materials

Indicolite, Diamond, Gold, 18k Gold, White Gold

Moiseikin 18 Karat Gold Burmese Ruby White Diamond Flower Cocktail Ring
By MOISEIKIN
Located in Hong Kong, HK
Gold Ring 3010001010,Weight 12.76 g, Size 17mm (D) 226 pc- Diamond 2.904 ct 49 pc- Reddish Pink
Category

2010s Russian Contemporary Cocktail Rings

Materials

White Diamond, Diamond, Ruby, Gold, 18k Gold

Art Deco Style Ring with Diamonds in 18 Karat White Gold
Located in Lucerne, CH
opulence. This ring flawlessly crafted in 18 Karat with gold and harmonizes classic elegance with
Category

Mid-20th Century European Art Deco Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Moiseikin 18 Karat White Gold 2.18 Carat Demantoid Garnet Diamond Ring
By MOISEIKIN
Located in Hong Kong, HK
swirling diamonds and the flawless graduation of demantoid garnets. Slight movement and wind touch stones
Category

2010s Russian Contemporary Cocktail Rings

Materials

Diamond, Garnet, 18k Gold, White Gold

Oval Shape Emerald Gemstone Hoop Earrings Diamond 18 Karat White Gold Jewelry
By Spectrum Jewels
Located in IN
White Gold Wt. :- 10.22 gm Natural Diamond Wt. :- 1.60 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I
Category

21st Century and Contemporary Indian Modern Hoop Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

Moiseikin 18 Karat White Gold Diamond Ruby Poppy Flower Dangle Drop Earrings
By MOISEIKIN
Located in Hong Kong, HK
Over 3.5 ct diamonds, radiant demantoid garnet and passionate rubies make a great harmony on a
Category

2010s Russian Contemporary Dangle Earrings

Materials

Diamond, Garnet, Ruby, 18k Gold

Moiseikin 18 Karat White Gold 2 Carat Diamond Poppy Flower Cocktail Ring
By MOISEIKIN
Located in Hong Kong, HK
, Weight 10.2g Diamond, 1pc – 0.65 ct. Diamond,115pc- 1.398ct Ruby, round, 31pc – 0.76 ct. Demantoid 10
Category

2010s Russian Contemporary Cocktail Rings

Materials

Diamond, Garnet, Ruby, 18k Gold

13 Carat Blue Sapphire 1 Carat Diamond 18 Karat White Gold Tennis Bracelet
By ALPENGEM
Located in Territet, CH
13 Ct (5 x 4mm) Blue Sapphires 1 Ct (F-G color, VS2) diamonds Inspired by the fire and radiance of
Category

2010s Contemporary Tennis Bracelets

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Moiseikin 18 Karat White Gold 4 Carat Demantoid Garnet Ring
By MOISEIKIN
Located in Hong Kong, HK
, dispersing the light. The flawless colour graduation demantoids and diamonds create unique colour shades and
Category

21st Century and Contemporary Russian Contemporary Cocktail Rings

Materials

Diamond, Garnet, White Gold, 18k Gold

18 Karat Gold 9.17 Carat Ruby Handmade Brooch in Waltzing Brilliance Technology
By MOISEIKIN
Located in Hong Kong, HK
suitable for a jacket or an evening dress. 18K White Gold Ruby Brooch Gold 18 K,Weight 20.46 g, 16 Diamond
Category

21st Century and Contemporary Russian Contemporary Brooches

Materials

Diamond, Ruby, White Gold

Sapphire and Diamond Earrings, 2.85ctw, 18kt
Located in Miami, FL
diamonds. Round sapphires, carat total weight 2.35 ct; diamonds, carat total weight .50. Beautiful pair of
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, Sapphire, 18k Gold

Sapphire and Diamonds Pendant in 14K.
Located in Miami, FL
diamonds, carat total weight .25 ct. Diamonds are natural earth-mined, sparkly bright white, near colorless
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Sapphire, 14k Gold

18k White Gold Diamond-Encrusted Ring
By THEVAULT15
Located in Boostedt, SH
A new take on a classic, THEVAULT15's massive 18-karat white gold encrusted sparkling diamond
Category

2010s German Contemporary Dome Rings

Materials

Diamond, 18k Gold, White Gold

Retro Coral Rose Cut Diamond Large Clip Earrings
Located in Napoli, IT
totaling .80 Ct. measured by a Diamond Gauge Earrings are 19 mm. In diameter with14.8 grams gross weight
Category

Vintage 1940s Italian Retro Clip-on Earrings

Materials

Coral, Diamond, 18k Gold

Amwaj White Gold Bangle with Diamond and Turquoise
By Amwaj Jewellery
Located in Abu Dhabi, Abu Dhabi
small round diamonds. 18 Karat White Gold Diamond (Total Carat Weight: 2.27 ct) Bangle Size: 6.5 cm
Category

21st Century and Contemporary Emirian Art Deco Bangles

Materials

Diamond, Turquoise, 18k Gold, White Gold

Retro Coral Rose cut Diamond Large Cocktail ring
Located in Napoli, IT
bright white rose cut Diamonds for approx .65 Ct, superbly set one by one by claws within scalloped edge
Category

Vintage 1940s Italian Retro Cluster Rings

Materials

Coral, Diamond, 18k Gold

HRD Certified 1 Carat Round Diamond Engagement Ring
Located in Napoli, Italy
band and into the light. Set with a 1.03 ct. Sparkling Round brilliant cut diamond in a brilliant white
Category

Late 20th Century Engagement Rings

Materials

Diamond, 18k Gold, Silver

18kt White Gold Ring with Square Emerald Cut and Brilliant Cut Diamonds
Located in Antwerp, BE
Diamonds: 6 emerald cut diamonds ( 2.4 Ct.) , 18 brilliant cut diamonds (0,9 Ct) Top Quality ! Colour : D/E
Category

21st Century and Contemporary Artist Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Moiseikin 18K White Gold Diamond Flower Pendant
By MOISEIKIN
Located in Hong Kong, HK
106000109002 Gold 18 K,Weight 1.71 g, 78 Diamond 0.755 ct 5 Ruby 0.09 ct * Plus 18K White gold 0.8mm slide
Category

2010s Russian Contemporary Pendant Necklaces

Materials

Diamond, Ruby, White Gold, Gold, 18k Gold

18K White Gold Natural Blue Zircon Diamond Handmade Earrings
By MOISEIKIN
Located in Hong Kong, HK
WG Handmade Natural Zircon Earrings Gold 18 K,Weight 8.94 g, 2 Diamond 0.1 ct 2 Ruby 0.01 ct 6
Category

2010s Russian Contemporary Lever-Back Earrings

Materials

Diamond, Pink Sapphire, Zircon, Blue Zircon, 18k Gold, White Gold

Estate 1.20 Natural Sapphire 1.0 G VVS Diamond Cluster ring
Located in Napoli, IT
The stunning crown boasts a magnificent Natural Royal Blue Sapphire of 1.20 Ct – intense, flawless
Category

Vintage 1970s European Contemporary Cluster Rings

Materials

Diamond, Sapphire, 18k Gold

MOISEIKIN Natural Blue Zircon Diamond Handmade White Gold Ring
By MOISEIKIN
Located in Hong Kong, HK
Handmade Natural Zircon Ring Gold 18 K,Weight 5.74 g,Size 17 (diameter), 2 Diamond 0.062 ct 3 Sapphire
Category

2010s Russian Contemporary Fashion Rings

Materials

Diamond, Pink Sapphire, Zircon, Blue Zircon, 18k Gold, White Gold

Classic 0.53ct Round Brilliant Diamond Ring set in 18K White Gold
Located in רמת גן, IL
: Round Brilliant color: E clarity: VVS2 cut grade: VG 18 diamond side stones of total: 0.3 ct. cut
Category

2010s Israeli Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

18k White Gold Earrings with Diamond-Encrusted Orbs and White Enamel
By THEVAULT15
Located in Boostedt, SH
with dazzling diamond orb charms inspired by the flawless silhouette of an orb for a modern elegant
Category

2010s German Contemporary Dangle Earrings

Materials

Diamond, 18k Gold, White Gold, Enamel

MOISEIKIN 18K White Gold Diamond Akoya Pearl Flower Necklace, Promotion
By MOISEIKIN
Located in Hong Kong, HK
18 K,Weight 3.55 g,Size 44cm, 1 Pearl Akoya sea 7.0-7.5mm, - 0.54 g 1 Ruby 0.015 ct 5 Diamond 0.3 ct
Category

2010s Russian Contemporary Pendant Necklaces

Materials

Diamond, Cultured Pearl, Ruby, 18k Gold, White Gold

Cober "Colombian Deco" with 1.77 Carat Emerald surrounded by 48 Diamonds Ring
By Vincent Cober
Located in OSS, NH
an additional 26 brilliant-cut diamonds, with a total weight of 0.48 ct IF/E. These diamonds have
Category

2010s Dutch Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

GIA Diamond Emerald 18k Gold Platinum Two Tone Toi et Moi Ring
Located in Beverly Hills, CA
diamond of 1.01 ct, accompanied with GIA #1226082952 stating the diamond is I color, graded SI2 clarity
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold, Platinum

13-16 mm White South Sea Round Pearl Necklace - AAA Quality, 27 P, Diamond Ball
Located in New York, NY
both security and style, the necklace is adorned with a fully diamond-embedded 18 karat white gold ball
Category

2010s Beaded Necklaces

Materials

Diamond, South Sea Pearl, White Gold, 18k Gold

Solitaire Engagement Gold Ring
Located in Berlin, DE
Europe, ca. 2000. A stunning round flawless diamond in the center weighing approximately 1,0 ct
Category

Early 2000s Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Potpourrie of Colors and Gems so many Colors Ring with Peridot Tourmaline Zircon
Located in Viena, Viena
three full cut brilliant-cut diamonds total ca. 0.15 ct, light brown / IF-VVS (flawless-very small
Category

2010s German Modern Fashion Rings

Materials

Diamond, Iolite, Peridot, Tourmaline, Apatite, Gold, 18k Gold, Yellow Gold

MOISEIKIN 18K White Gold Sapphire Akoya Pearl Flower Necklace, Promotion
By MOISEIKIN
Located in Hong Kong, HK
18 K, Weight 3.20 g, Size 45cm, 1 Pearl Akoya sea, 7-7.5mm - 0.542 g 1 Diamond 0.01 ct 5 Sapphire
Category

2010s Russian Contemporary Pendant Necklaces

Materials

Diamond, Pearl, Cultured Pearl, Sapphire, 18k Gold, White Gold

Pomellato Vintage circa 1981, 22 Ct Sapphire Diamond 18k Gold Tango Bracelet
By Pomellato
Located in Berlin, Berlin
made of 18 karat white and yellow gold, lavishly set with brillant- cut diamonds and cabochon-cut
Category

Vintage 1980s Italian Retro Retro Bracelets

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

2 Carat White Diamond Cufflinks in 18 Karat White Gold
By 64 Facets
Located in Los Angeles, CA
center stone is a 0.40 CT rose-cut diamond gently encircled by 15 brilliant cut diamonds in a micro-pave
Category

2010s American Contemporary Cufflinks

Materials

White Diamond, Diamond, 18k Gold

2 Carat White Diamond Cufflinks in 18 Karat White Gold
2 Carat White Diamond Cufflinks in 18 Karat White Gold
Free Shipping
H 0.16 in Dm 0.44 in L 0.79 in
Chopard Les Chaines 18 Karat Yellow Gold Diamond Ruby Charm Bracelet
By Chopard
Located in Antwerp, BE
: 65.7 grams. Diamonds: 0.23ct. Colour: D Clarity: Flawless Cabochon Rubies: 0.24 ct. Length: 22.0cm
Category

1990s Swiss Contemporary Charm Bracelets

Materials

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

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

18 Ct Flawless Diamond For Sale on 1stDibs

Find the exact 18 ct flawless diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using 18k Gold, Gold and White Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect 18 ct flawless diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing 18 ct flawless diamond — no matter the origin — is easy, but Antinori Fine Jewels, David & Company and Garavelli each produced a popular version that is worth a look. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes round cut and emerald cut alternatives. Finding a 18 ct flawless diamond for sale for women should be easy, but there are 2 pieces available to browse for unisex as well as men, too.

How Much is a 18 Ct Flawless Diamond?

The price for a 18 ct flawless diamond starts at $4,595 and tops out at $949,200 with these rings, on average, selling for $47,000.