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18 Diamond Solitaire

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Leo Round Diamond 1.01 Carat Solitaire Ring Platinum and 18 Karat White Gold
By The Leo Diamond
Located in San Diego, CA
Leo Diamond Engagement Ring Style: 4 - Prong Solitaire Certification: IGI 7092060A Metal: 18kt
Category

Early 2000s Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Diamonds Solitaire 18 kt Gold Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Unique solitaire ring in 18kt white gold composed of a
Category

21st Century and Contemporary Italian Modern Solitaire Rings

Materials

Diamond, Brown Diamond, 18k Gold, White Gold

18 Karat White Gold Diamond Solitaire Ring
Located in Los Angeles, CA
This diamond solitaire ring is crafted in 18-karat white gold, featuring 24 round white diamonds
Category

2010s American Solitaire Rings

Materials

Diamond, White Gold

18 Karat White Gold Diamond Solitaire Ring
By Vitale 1913
Located in Monte-Carlo, MC
18K white gold solitaire engagement ring is from Timeless Collection. This elegant piece of
Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Diamond, 18 Karat Rose Gold Solitaire Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Amazing solitaire ring in 18 kt rose gold structure mounted
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

18 Karat White Gold Diamond Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat White Gold Diamond Solitaire Ring Coming from the house of classic style, this diamond
Category

2010s Indian Modern Solitaire Rings

Materials

Diamond, White Gold, 18k Gold, Gold

18 Karat White Gold Diamond Solitaire Ring
Located in Macau, MO
A square modified brilliant diamonds weighing 2.00 carats, mounted in 18 karat white gold. A very
Category

2010s Hong Kong Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

18 Karat White Gold Eternity Solitaire Diamond Ring
Located in Berlin, DE
18 Karat White Gold Eternity Solitaire Diamond Ring. Set with a large solitaire and many small
Category

20th Century German Modern Solitaire Rings

Materials

White Diamond, Diamond, White Gold, 18k Gold

18 Karat White Gold Diamond Solitaire Illusion Ring
Located in Los Angeles, CA
This medium version of diamond solitaire illusion ring is crafted in 18-karat white gold, featuring
Category

2010s American Solitaire Rings

Materials

Diamond, White Gold

18 Karat White Gold Diamond Solitaire Illusion Ring
Located in Los Angeles, CA
This small version of diamond solitaire illusion ring is crafted in 18-karat white gold, featuring
Category

2010s American Solitaire Rings

Materials

Diamond, White Gold

Solitaire 2 Golds Diamond in 18 Carat Gold
Located in LILLE, FR
Solitaire in 18 carat gold, 750 thousandths, and diamond of 0.50 carat K color SI quality. 2 golds
Category

Mid-20th Century French Solitaire Rings

Materials

Diamond, Gold, 18k Gold

18 Karat Gold Solitaire Rose-Cut Diamond and Yellow Sapphire Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat Gold Solitaire Rose-Cut Diamond and Yellow Sapphire Solitaire Fashion Ring This
Category

2010s Indian Modern Solitaire Rings

Materials

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

Vintage Solitaire Diamond 18 karat Yellow Gold Ring
Located in Esch-Sur-Alzette, LU
The "Vintage Solitaire Diamond 18kt Yellow Gold Ring" is an iconic piece of jewelry with several
Category

20th Century Swiss Modern Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Vintage Solitaire Diamond 18 karat Yellow Gold Ring
Located in Esch-Sur-Alzette, LU
The Vintage Solitaire Diamond 18kt Yellow Gold Ring is a wonderful piece of jewelry with several
Category

20th Century Luxembourgish Artisan Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Topaz, Diamonds, 18 Karat White Gold Solitaire Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Elegant solitaire ring in 18 kt white gold structure mounted
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, Topaz, 18k Gold, White Gold

Ethonica Solitaire Diamond Ring in 18 Karat Gold
Located in New York, NY
To express your love with a timeless Round Brilliant solitaire ring. This ring is simple yet
Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Diamond, 18 Karat White Gold Solitaire/ Engagement Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Simple and elegant solitaire/engagement ring realized in 18K
Category

Early 2000s Modern Solitaire Rings

Materials

White Diamond, 18k Gold, White Gold

Modern Diamond an 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
The design of the ring is so simple and beautiful. The diamond measures 30pts and is set in
Category

Vintage 1980s British Modern Solitaire Rings

Materials

Diamond, Gold

Ethonica Solitaire Diamond Ring in 18 Karat Gold
Located in New York, NY
diamond 0.90 carat is set and placed in a four prong setting. The shank of the ring is set by ten side
Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Gold

18 Karat Rose Gold 0.74 Carat Diamond Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
Experience the timeless allure of our 18 Karat Rose Gold 0.74 Carat Diamond Solitaire Ring—a
Category

2010s Indian Modern Solitaire Rings

Materials

Diamond, 18k Gold

18 Karat White Gold 0.74 Carat Diamond Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
Experience the timeless allure of our 18 Karat White Gold 0.74 Carat Diamond Solitaire Ring—a
Category

2010s Indian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

18 Karat Yellow Gold 0.74 Carat Diamond Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
Experience the timeless allure of our 18 Karat Yellow Gold 0.74 Carat Diamond Solitaire Ring—a
Category

2010s Indian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Blue Sapphire Diamond 18 Karat Gold Solitaire Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This ring has been meticulously crafted from 18-karat gold. It is hand set with 1.25 carats blue
Category

21st Century and Contemporary Unknown Modern Solitaire Rings

Materials

Emerald, Blue Sapphire, Diamond, 18k Gold, Gold

20th Century Diamond 18 Karat Rose Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat rose gold and platinum. A delightful antique solitaire set with an illusion
Category

Early 20th Century French Art Deco Solitaire Rings

Materials

White Diamond, Diamond, Platinum, Rose Gold, 18k Gold, Gold

French 1960s Diamond 18 Karat White Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat white gold, eagle head hallmark. This white gold solitaire ring consists of a
Category

Vintage 1960s French Retro Solitaire Rings

Materials

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

1930s Platinum Set Diamond 18 Karat Gold Solitaire Ring
Located in Chipping Campden, GB
A stunning diamond solitaire ring crafted in the 1930s. The wonderful old European cut diamond sits
Category

Vintage 1930s Unknown Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Roberto Coin 18 Carat White Gold Diamond Solitaire Ring
By Roberto Coin
Located in Rome, IT
Roberto Coin Cento 18K White Gold 1.10 ct Round Brilliant Cut Diamond C Profile Solitaire
Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Retro 3.10 Ct Diamond Solitaire Gent Ring 18 KT
Located in Napoli, IT
beauty of the centre Diamond solitaire, 18 Kt white gold Diamond is a superb bright white early brilliant
Category

Vintage 1940s Italian Retro Solitaire Rings

Materials

Diamond, 18k Gold

French 1960s Diamond 18 Karat Rose Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat rose gold, eagle head hallmark and platinum, dog head hallmark. Retro ring, it
Category

Vintage 1960s French Retro Solitaire Rings

Materials

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

Art Deco 1.45 CT Diamond Solitaire 18 Kt Ring
Located in Napoli, IT
Art Deco Diamond solitaire ring, 1935 ca Hand crafted of solid 18 KT white gold, marked Beautiful
Category

Vintage 1930s Italian Art Deco Solitaire Rings

Materials

Diamond, 18k Gold

Central Light Fancy Diamond, Diamonds, 18 Karat Gold Solitaire/Engagement Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Elegant and simple solitaire/engagement ring in 18K white
Category

Early 2000s Retro Solitaire Rings

Materials

White Diamond, Brown Diamond, 18k Gold, White Gold

2.2 Carat Diamond Solitaire Flower Ring, 18 Karat White Gold
Located in Berlin, DE
Stunning 2.2 Carat Diamond Solitaire Ring, 18 Karat White Gold. Set with seven white diamonds. 1 x
Category

20th Century Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Colombian Emerald Diamonds Solitaire Ring White Gold 18 Karat
Located in US
Emerald and Diamonds Ring Mounting Is Custom Made of Solid 18K W.G Center Natural Colombian
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Emerald, 18k Gold

Vintage Aquamarine and Diamond 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
of the stone are diamonds which total 30pts. The ring is modelled in 18ct gold and diamonds set in
Category

Vintage 1970s British Solitaire Rings

Materials

Aquamarine, Diamond, Gold

Tiffany Harmony 0.20 Carat Solitaire Diamond Ring PT950 with 18 Pave Diamonds
By Tiffany & Co.
Located in Kobe, Hyogo
Item: Authentic Tiffany Harmony Solitaire Diamond Ring Stones: Diamond / 0.20ct (center stone
Category

2010s American Solitaire Rings

Materials

Diamond, Platinum

18 Karat Gold 2.88 Carat Multi-Colored Diamond and Diamond Solitaire Ring
By Gems Paradise
Located in Jaipur, IN
Step into a world of timeless elegance with our 18 Karat Gold 2.88 Carat Fancy Yellow Diamond and
Category

2010s Indian Contemporary Solitaire Rings

Materials

Diamond, Yellow Diamond, Pink Diamond, 18k Gold

French 1950s Retro Diamond 18 Karat Yellow Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark. Antique solitaire ring featuring an intermediate
Category

Vintage 1950s French Retro Solitaire Rings

Materials

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

18 Karat Gold Solitaire Fancy Yellow and White Diamond Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat Gold Solitaire Fancy Yellow and White Diamond Ring Get ready to answer a lot of questions
Category

2010s Indian Contemporary Solitaire Rings

Materials

Yellow Diamond, White Diamond, 18k Gold, Gold

Vintage Aquamarine and Diamond 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
stone are diamonds which total 30pts. The ring is modelled in 18ct gold. Fully hallmarked London 1977
Category

Vintage 1970s British Solitaire Rings

Materials

Aquamarine, Diamond, Gold

18 Karat Yellow Gold White Diamond Twisted Solitaire Pinky Ring
Located in London, GB
An 18 karat (18K) yellow gold and diamond solitaire ring with a twisted shank set with a collet set
Category

20th Century French Solitaire Rings

Materials

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

18 carat yellow gold solitaire round brillant cut diamond ring
Located in Monte-Carlo, MC
18 carat yellow gold solitaire ring designed with 1 round brillant cut diamond weighing 0.34 carat
Category

2010s Solitaire Rings

Materials

Diamond, Yellow Gold

French 1940s Diamond 18 Karat Yellow Gold Platinum Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark and platinum. Splendid retro ring, it is adorned
Category

Vintage 1940s French Retro Solitaire Rings

Materials

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

Art Deco Diamond an 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
The design of the ring is so simple and beautiful. The diamond measures 35pts and is set in
Category

Vintage 1920s British Art Deco Solitaire Rings

Materials

Diamond, Gold

Vintage Aquamarine and Diamond 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
sits a pair of diamonds measuring a total of 5pts set in platinum. Ring Size: M 1/2 or 6 1/2 Stone
Category

Vintage 1980s British Modern Solitaire Rings

Materials

Aquamarine, Diamond, Gold

Cartier Vintage Solitaire Diamond Silverium 18 Karat Yellow Gold Ring
By Cartier
Located in Boca Raton, FL
diamond. The diamond is graded E color and VS1 clarity, and is surrounded by silverium and 18 karat yellow
Category

Late 20th Century French Modern Solitaire Rings

Materials

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

Art Deco Diamond and 18 Carat Gold Solitaire Ring
Located in Chipping Campden, GB
The brilliant cut diamond set within this gorgeous 18ct gold band is so sparkly and bright. It
Category

Vintage 1920s British Art Deco Solitaire Rings

Materials

Diamond, Gold

Edwardian Diamond Platinum and 18 Carat Yellow Gold Solitaire Ring
Located in Chipping Campden, GB
A stunning Edwardian diamond solitaire ring. The beautiful old European cut diamond measure
Category

Vintage 1910s Unknown Edwardian Solitaire Rings

Materials

Diamond, 18k Gold, Platinum

Diamond Aquamarine Topaz White Gold 18 Karat Solitaire Ring
By Natkina
Located in Montreux, CH
GOLD 18K Diamond 66-RND-1,32-G/SI1A Aquamarine 1 - 9,74ct Topaz 28-1,06ct
Category

21st Century and Contemporary Swiss Modern Solitaire Rings

Materials

Aquamarine, White Diamond, Topaz, 18k Gold, White Gold

Art Deco Diamond, 18 Carat Gold and Platinum Solitaire Ring
Located in Chipping Campden, GB
This beautiful solitaire ring holds and old mine cut diamond that measures 50pts. The stone is set
Category

Vintage 1930s Unknown Solitaire Rings

Materials

Diamond, 18k Gold, Platinum, Gold

Diamond Yellow Gold Gent's Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 0.48 carat diamond and 18 karat yellow gold gent's solitaire ring; part of
Category

Antique 1880s British Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Diamond Solitaire Italian Ring 18 karat Yellow and White Gold
Located in Esch-Sur-Alzette, LU
The Diamond Solitaire Italian Ring in 18-karat Yellow and White Gold is a stunning and distinctive
Category

20th Century Italian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Georgios Collections 18 Karat YellowGold Aquamarine Solitaire Ring with Diamonds
By Georgios Collections Inc
Located in Astoria, NY
This S.Georgios designer Yellow Gold 18 Karat Ring features a gorgeous Oval shape Aquamarine with a
Category

21st Century and Contemporary Greek Contemporary Solitaire Rings

Materials

White Diamond, Diamond, Aquamarine, White Gold, 18k Gold, Gold

French 1970s Aquamarine Diamonds 18 Karat White Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat white gold, eagle head hallmark. A solitaire-style white gold ring featuring a
Category

Vintage 1970s French Retro Solitaire Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, White Gold

18 Karat White Gold 2.03 Carat Solitaire Fancy Diamond Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat White Gold 2.03 Carat Solitaire Fancy Diamond Ring Want to reflect your modern
Category

2010s Indian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Certified 2 Carats Diamond 18 Carats White Gold Solitaire Ring
Located in Paris, FR
Exceptional solitaire presenting in its middle a brilliant diamond of 2 carats supported by six
Category

Early 2000s French Modern Solitaire Rings

Materials

Diamond, White Gold

18 Karat Yellow Gold Oval Brown 2.07 Carat Diamond Solitaire Ring
By Vitale 1913
Located in Monte-Carlo, MC
This 18K yellow gold stunning solitaire ring is from our Divine Collection. The centre stone is
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

Bezel Set Diamond Solitaire 18 Karat Yellow Gold Estate Ring
Located in Mount Kisco, NY
to one full cut round faceted .94 carat H/VS diamond solitaire in a rhodium setting. Unisex
Category

2010s American Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Cartier 1895 Solitaire 0.30ct and 18 Pave Diamonds Ring Pt 49
By Cartier
Located in Kobe, Hyogo
Item: Authentic Cartier 1895 Diamond Solitaire Ring Stones: Diamond ( center stone 0.30 ct ) with
Category

2010s French Solitaire Rings

Materials

Diamond, Platinum

18 Karat White Gold 0.74 Carat Diamond Solitaire Style Ring
Located in Southampton, GB
. Diamond Weight: 0.74ct Diamond Colour: I Diamond Clarity: VS Total Ring Weight: 8.1g Ring Material: 18ct
Category

20th Century Unknown Solitaire Rings

Materials

Diamond, White Gold

Delightful Cabochon Ruby and Diamond Solitaire Ring in 18 Karat
Located in Wailea, HI
Delightful Cabochon Ruby and Diamond Solitaire Ring in 18k One Cabochon Ruby weighing 1.12 carats
Category

Late 20th Century American Modern Solitaire Rings

Materials

White Diamond, Ruby

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18 Diamond Solitaire For Sale on 1stDibs

You are likely to find exactly the 18 diamond solitaire you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and white gold. Our collection of these items for sale includes 2028 vintage editions and 3289 modern creations to choose from as well. If you’re looking for a 18 diamond solitaire from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. There have been many well-made iterations of the classic 18 diamond solitaire over the years, but those made by Gems Paradise, Vaibhav Dhadda and Gems and Jewels UK are often thought to be among the most beautiful. A round cut version of this piece has appeal, but there are also oval cut and brilliant cut versions for sale. When shopping for a 18 diamond solitaire, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 18 Diamond Solitaire?

Prices for a 18 diamond solitaire can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $1,125,000, while this accessory, on average, fetches $3,888.
Questions About 18 Diamond Solitaire
  • 1stDibs ExpertSeptember 28, 2021
    The best setting for a solitaire diamond is the prong setting. In such a setting, the stone is held in place with a minimal amount of metal allowing more light to pass through the diamond resulting in added brilliance. Find a collection of solitaire diamond jewelry on 1stDibs.