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18 Kt Solitaire

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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

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

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

ct 2, 20 Diamond 18 kt White Gold Solitaire Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Solitaire ring in 18kt white gold composed of one central
Category

Late 20th Century Italian Retro Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Edwardian .75 Ct Diamond Solitaire Deep Carved 18 KT Gold Ring
Located in Napoli, IT
otherwise stated boxes are for presentation only Further Details Below Metal: 18 Kt gold, tested Hallmarks
Category

Early 20th Century European Edwardian Solitaire Rings

Materials

Diamond, Gold, 18k Gold

Retro 11.00 Ct Natural No Heat Yellow Sapphire Solitaire 18 Kt ring
Located in Napoli, IT
in a lovely 18 Kt solid gold multi-claws mount The focus of the ring is a stunning over size 11.00
Category

Vintage 1940s European Retro Solitaire Rings

Materials

Yellow Sapphire, 18k Gold

Art Deco 1.04 Ct Cushion Diamond G VS1 Solitaire 18 KT Ring
Located in Napoli, IT
plain shank exquisitely hand made of solid 18 Kt gold Center Diamond is a bright white full of sparkle
Category

Vintage 1930s European Art Deco Solitaire Rings

Materials

Diamond, 18k Gold

Solitaire Square Tanzanite Gemstone Wedding Band Ring Diamond 18 Kt White Gold
Located in IN
Item Code :- SER-22347 Gross Wt. :- 2.56 gm 18k Gold Wt. :- 2.19 gm Natural Diamond Wt. :- 0.18 Ct. ( AVERAGE DIAMOND CLARITY SI1-SI2 & COLOR H-I ) Tanzanite Wt. :- 1.65 Ct Ring Size...
Category

21st Century and Contemporary Indian Modern Solitaire Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Solitaire Brilliant Ring 18 kt Rose Gold 1.81 ct M / SI makes your heart beat
Located in Viena, Viena
of course the classic single carat is a highligh but if it is a 1.81 carat then the heart beats a little faster, a wonderful full cut brilliant with 7.6 mm diameter looks fantastic o...
Category

2010s German Solitaire Rings

Materials

18k Gold, Rose Gold

Diamonds Sapphires 18 kt White Gold Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Beautiful ring contrirè in 18 kt white gold, the stem is
Category

Vintage 1980s Italian Retro Solitaire Rings

Materials

Diamond, 18k 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

Estate 1.85 Ct Round and Baguette Cut 18 KT ring
Located in Napoli, IT
This estate Diamond ring is 1970 ca Superbly hand crafted of solid 18 KT bicolor version Sleekly
Category

Vintage 1970s European Contemporary Solitaire Rings

Materials

Diamond, 18k 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

Victorian 1.20 Ct Spread Rose Cut Diamond 18 Kt Gold Ring Boxed
Located in Napoli, IT
Heavy mount hand crafted of solid 18 Kt gold, tested Centrally set in a round silver target a stunning
Category

Antique Late 19th Century European Victorian Solitaire Rings

Materials

Diamond, Gold, 18k Gold

Chameleon Colour Change 2.10 Ct Diamond 18 kt Ring, GIA Certificate
Located in Antwerp, BE
Fabulous Chameleon Colour Change Diamond Ring With GIA Certificate Diamond: Chameleon Colour Change, Brilliant cut, Natural diamond 2.10ct. Comes with GIA Certificate Material: 18...
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Platinum & 18 kt. Gold Ring 4.75 NH Burmese Spinel, Fancy Yellow & White Diamond
Located in Antwerp, BE
Magnificant Platinum & 18 kt. Yellow Gold Ring With 4.75 No Heat Pigeon Blood Burmese Spinel, 2.94
Category

21st Century and Contemporary European Artisan Solitaire Rings

Materials

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

Ring 18 Kt Yellow Gold with Amethyst Yellow Sapphires Purple and Yellow Dream
By Nicofilimon the Jewelry Designer
Located in Athens, GR
Ring 18 Kt Yellow Gold with Amethyst and Yellow Sapphires, a Purple and Yellow Dream of colours on
Category

2010s Greek Modern Solitaire Rings

Materials

Yellow Sapphire, Tourmaline, 18k Gold, Yellow Gold

Natural Trillion Emerald & 0.60 Carat Diamond Ring 18 Kt Yellow Gold Size 5.2
Located in New York, NY
Natural Very very Fine Trillion Emerald & 0.60 Carat Diamond Ring 18 Kt Yellow Gold Size 5.2 The
Category

Early 2000s Solitaire Rings

Materials

Diamond, Emerald, Yellow Gold, 18k Gold

Vintage 75 Ct Natural Oval Sleeping Beauty Turquoise Ring, 18 Kt Yellow Gold
Located in New York, NY
Vintage 75 Ct Natural Oval Sleeping Beauty Turquoise Ring, 18 Kt Yellow Gold 18 karat gold 26
Category

2010s Solitaire Rings

Materials

Turquoise, Gold, Yellow Gold

27.89 Ct Natural Colombian Emerald Cabochon & 5.73 Ct Yellow Diamond Ring 18 Kt
Located in New York, NY
Ring 18 Karat two tone gold Exact 27.89 Carat Natural Cabochon Emerald Ring set in 18 Karat Yellow
Category

2010s Solitaire Rings

Materials

Emerald, Yellow Diamond, 18k Gold, Yellow Gold

Vintage 12 Ct Natural Carved Emerald & 1.5 Ct Diamond Ring 18 Kt Yellow Gold
Located in New York, NY
Vintage 18 Karat Yellow Gold Ring Size 6.5 featuring a single solitaire natural carved emerald
Category

Early 2000s Solitaire Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

0.25 ct White Diamonds, 0.23 ct Brown Fancy Diamond, 18 kt White Gold Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Solitaire/ Engagement ring in 18K white gold realized with
Category

Early 2000s Italian Modern Solitaire Rings

Materials

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

5.82 Ct Natural Colombian Cushion Cut Emerald & 3 Ct RoseCut Diamond Ring 18 Kt
Located in New York, NY
Dimond Ring in 18 Karat Yellow Gold Exact 5.82 Carat Natural Cushion cut Emerald Ring set in 18 Karat
Category

2010s Solitaire Rings

Materials

Emerald, 18k Gold, Yellow Gold

0.30 Ct Fine Natural Ruby & 2 Ct Finest Diamond 18 Kt White Gold Flower Ring
Located in New York, NY
Introducing our exquisite 18 Karat Gold Ring, which showcases a stunning 0.30 Carat natural Ruby
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Ruby, Sapphire, Gold, 18k Gold, White Gold

12 Ct Natural Marquis Ruby & 0.75 Ct Diamond 18 Kt White Gold Ball Ring Size 6
Located in New York, NY
12 Ct Natural Marquis Ruby & 0.75 Ct Diamond 18 Kt White Gold Ball Ring Size 6 Introducing our
Category

2010s Solitaire Rings

Materials

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

2.5 Ct Natural Marquis Ruby & 1 Ct Dancing Diamond 18 Kt White Gold Ring Size 6
Located in New York, NY
2.5 Ct Natural Marquis Ruby & 1 Ct Dancing Diamond 18 Kt White Gold Ring Size 6 Introducing our
Category

2010s Solitaire Rings

Materials

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

2.5 Ct Pink Emerald Cut Pink Sapphire & 2.8 Ct Diamond 18 Kt White Gold Ring S6
Located in New York, NY
The 2.5 Ct Pink Emerald Cut Pink Sapphire & 2.8 Ct Diamond 18 Kt White Gold Ring in Size 6 is a
Category

2010s Solitaire Rings

Materials

Diamond, Pink Sapphire, 18k Gold, White Gold

GIA Certified 1.61 Carat Oval Cut Purple Red Ruby 1.01 Carat Diamonds Ring 18 kt
Located in New York, NY
GIA Certified 1.61Ct Natural Ruby Ring Report: 6177094723 Oval cut Clean Clarity 8.53 X 6.50 X 3.15mm GIA: Purpulish Red Heat Only. 1.01ct. side round diamonds. G-color vs...
Category

2010s American Solitaire Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Victorian Solitaire Rose Cut Diamond Ring
Located in Napoli, IT
as solitaire with lovely mounting entirely hand crafted of solid 18 KT gold , marked Crown is made
Category

Antique Late 19th Century European Victorian Solitaire Rings

Materials

Diamond, 18k Gold

12.30 Ct Australian Opal Diamond Large Solitaire ring
Located in Napoli, IT
Impressive Opal and Diamond ring, 1960 ca Exquisitely hand crafted of solid 18 KT white gold in a
Category

Mid-20th Century Italian Contemporary Solitaire Rings

Materials

Diamond, Opal, 18k Gold

Antique 19th Century Rose Cut Diamond Solitaire Ring 18KT/Silver
Located in Napoli, IT
/ Victorian era, finely hand crafted at the time of solid 18 Kt gold with silver portions Fascinating
Category

Antique 1830s European Early Victorian Solitaire Rings

Materials

Diamond, 18k Gold, Silver

Ct 1.05 Diamond Yellow Gold Art Deco Style Solitaire Ring
Located in Cattolica, IT
This fine solitaire ring is made in 18 kt yellow gold ( gr 6.00 ). The central diamond has an
Category

Antique 1770s Italian Art Deco Solitaire Rings

Materials

Diamond, Yellow Gold

Retro 1.50 Ct Old European Cut Diamond VVS Solitaire Ring
Located in Napoli, IT
of solid 18 Kt gold The skilfully made mount is made to exalt at best the large Diamond solitaire set
Category

Vintage 1940s European Retro Solitaire Rings

Materials

Diamond, 18k Gold

Solitaire Ring with a 5.23 Carat Diamond in the Center
Located in Paris, FR
Solitaire ring in 18 kt white gold centered with a large modern brilliant cut Diamond weighing 5.23
Category

1990s French Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Victorian .55 Ct Old Mine Cut Diamond Rare Solitaire Ring
Located in Napoli, IT
decorated with heavy 18 KT solid gold mount centrally set with an Old mine cut Diamond of .55 CT rated as G
Category

Antique Late 19th Century European Etruscan Revival Solitaire Rings

Materials

Diamond, 18k Gold

Art Deco .75 Ct. G VS1 Diamond Solitaire Plus Engagement Ring
Located in Napoli, IT
as unique of solid 18 KT gold topped by Platinum Classy design in vogue at the time with a sleek
Category

Vintage 1920s European Art Deco Solitaire Rings

Materials

Diamond, 18k Gold

Vintage Style 6.0 Ct. Ruby Red Fire Opal Diamond Solitaire ring
Located in Napoli, IT
, one off solitaire late Art Deco design, hand crafted of solid 18 Kt gold Centrally set with a large
Category

Antique 1880s European Contemporary Solitaire Rings

Materials

Diamond, Opal, Fire Opal, 18k Gold

AIG Certified 4 Carat Diamond 18 k white gold ring.
Located in MADRID, ES
opportunity to have this unique piece. Technical details: 18 kt white gold. 750 law Size: size 15 Total
Category

21st Century and Contemporary Spanish Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Sapphire and Diamond Halo Ring 18 Karat Gold 2.88 Carat
Located in Laguna Hills, CA
Blue Sapphire and Diamond Pave Halo Ring, 2.88 TCW,18 Kt. Deep colored center sapphire measuring
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

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

18 Karat Yellow Gold Ring with Green Tourmaline and .25 Carat Diamonds
Located in New York, NY
Cabochon oval green tourmaline center stone with diamond accents set in 18 kt yellow gold. Diamond
Category

1990s Retro Solitaire Rings

Materials

Diamond, Tourmaline, Yellow Gold

Blue Sapphire NTE Ring with Diamonds in Yellow 18 Karat Gold
Located in Lucerne, CH
nature's colors and the enduring appeal of fine jewelry. Assay: 750, 18 Kt Makers Mark: ST Sapphire: 1
Category

21st Century and Contemporary European Modern Solitaire Rings

Materials

Blue Sapphire, Sapphire, Diamond, Yellow Gold, 18k Gold, Gold

Halo Tanzanite and Diamond Ring, 2.70 Carat VS Quality 18 Karat
Located in Laguna Hills, CA
Contemporary, Hexagon Tanzanite and Diamond Ring, VS 2.70 TCW, 18 KT Center oval shaped Tanzanite
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Diamond, Tanzanite, White Gold, 18k Gold

18 Karat Gold Ring .92 Brilliant Diamonds and Ceylon No Heat 2.35 Carat Sapphire
Located in Antwerp, BE
Magnificent 18 kt White Gold Ring With 92 Brilliant Cut Diamonds & 1 Sapphire Sapphire: 2,35 Ct
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

18kt white gold ring 0.23 ct diamonds and 0.94 ct oval blue sapphire
By Crivelli Gioielli
Located in Bari, IT
Anello in oro bianco 18 kt, con diamanti taglio brillante da 0,23 carati e Zaffiro Blu ovale
Category

2010s Italian Solitaire Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

ALGT Certificied 2.20 Carat Diamond Engagement Ring
Located in AMSTERDAM, NL
Offered 18 carat white gold solitaire ring with a 1.20 ct brilliant cut diamond of quality L Faint
Category

1990s European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Estate 1.21 Ct Emerald Cut Diamond G VVS1 Diamond Ring
Located in Napoli, IT
This contemporary, classy style, Diamond solitaire ring has been totally hand crafted of solid 18
Category

Late 20th Century European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Art Nouveau Pearl Diamond Royal Blue Enamel Ring
Located in Napoli, IT
18 Kt gold Inspired by Nature, with a one off tasteful solitaire design, for a stunning main salt
Category

Early 20th Century European Art Nouveau Solitaire Rings

Materials

Diamond, Pearl, 18k Gold, Enamel

Unheated Natural 10.37 Carat Sapphire and Diamond Ring
Located in Monte Carlo, MC
A lively intense blue sapphire on a unique 18 Kt white gold and diamond ring. The sapphire comes
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Natural Pink Sapphire & Blue Sapphire Pave Ring in 18Kt White Gold
Located in Westmount, CA
This gorgeous natural blue sapphire and natural pink sapphire pave ring in 18 kt white gold is the
Category

2010s Canadian Contemporary Solitaire Rings

Materials

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

Reinassance Revival 11.42 Ct Certified Unheated Yellow Ceylon Sapphire Ri
Located in Napoli, IT
crafted as unique of solid 18 KT gold, bearing the OWL French import marks Imposing look given by the
Category

Antique 1880s European Renaissance Revival Solitaire Rings

Materials

Sapphire, 18k Gold

14 Karat Gold Swiss Topaz Ring / Round Diamond Ring / Three Stone Ring
By JEWELICK
Located in Jaipur, RJ
Item details:- ✦ SKU:- JRG00314YYY ✦ Product Specification:- • Gold Kt: 14K (also available in
Category

2010s Indian Modern Solitaire Rings

Materials

Diamond, Topaz, Gold, 14k Gold

IGI Certified Halfcarat Diamond Ring about 0.56 ct TW / VS Handmade in Italy
Located in Viena, Viena
what a great ring, clear strict lines, solid 18 kt White Gold setting and one magnific white
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

18k Tahitian Pearl and Diamond Ring 1 Carat JYE Award
Located in Laguna Hills, CA
are set on an 18 kt. Split shank with wrapped underside of diamonds at pearl base. 100 round brilliant
Category

21st Century and Contemporary Unknown Contemporary Solitaire Rings

Materials

Diamond, Pearl, 18k Gold

Diamond Sapphire White Gold Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Fantastic ring in 18 kt gold, contracting model with
Category

Early 2000s Italian Modern Solitaire Rings

Materials

Diamond, Blue Sapphire, 18k Gold

1.92 Carat Emerald Diamond Pave Gold Ring
Located in Los Angeles, CA
questions you may have, we are happy to assist. Specs: 18 KT White Gold Diamonds: 68- 0.55 Round Cut
Category

Vintage 1980s American Solitaire Rings

Materials

Diamond, Emerald, 18k Gold

Retro 1.04 Ct Diamond Solitaire Pendant plus 18 KT Chain
Located in Napoli, IT
always with you Hand crafted of solid 18 Kt gold comes with a classy 18 KT chain for a ready wear 1940 ca
Category

Vintage 1930s European Retro Pendant Necklaces

Materials

Diamond, 18k Gold

2.08 Ct Diamond Solitaire Target Stud Earrings 18 KT gold
Located in Napoli, IT
Vintage Diamond target design ear studs Mid century, 1950 ca Hand crafted of solid 18 Kt gold to
Category

Mid-20th Century European Contemporary Stud Earrings

Materials

Diamond, 18k Gold

Art Deco 1.60 Ct Diamond Solitaire Dormeuse 18 KT Plat Earrings
Located in Napoli, IT
solid 18 Kt gold backs and Platinum crown Sweet crown designed detailing with openwork and scrolls
Category

Vintage 1920s Italian Art Deco Lever-Back Earrings

Materials

Diamond, 18k Gold

1.50 Carat Princess Cut 18 KT White Gold Solitaire Diamond Stud Earrings
Located in London, GB
1.50 Carat Princess Cut White Diamond Solitaire Stud earrings Color H Clarity SI1 with four corner
Category

2010s British Modern Stud Earrings

Materials

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

18 kt white gold engagement ring with solitaire emerald oval cut and diamonds
Located in BARI, IT
realized in 18 kt white gold. You can easily bring to measure.
Category

2010s Italian Victorian Engagement Rings

Materials

Diamond, Emerald, White Gold

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18 Kt Solitaire For Sale on 1stDibs

Surely you’ll find the exact 18 kt solitaire you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and white gold — can elevate any look. Our collection of these items for sale includes 181 vintage editions and 145 modern creations to choose from as well. Finding the perfect 18 kt solitaire 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. Creating a 18 kt solitaire has been a part of the legacy of many jewelers, but those produced by Harakh, Romy Ivsic and Damati are consistently popular. A 18 kt solitaire can make for a versatile accessory, but a selection from our variety of 221 diamond versions can add an especially stylish touch. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and cushion cut cut versions available here, too. Most of our 18 kt solitaire for sale are for women, but there are 100 pieces available to browse for men.

How Much is a 18 Kt Solitaire?

On average, a 18 kt solitaire at 1stDibs sells for $4,650, while they’re typically $1 on the low end and $242,680 for the highest priced versions of this item.
Questions About 18 Kt Solitaire
  • 1stDibs ExpertJune 30, 2023
    Whether 18-karat gold is valuable depends on a variety of factors. The price of gold per gram fluctuates with the market for gold. If the gold in question refers to a piece of jewelry, factors under consideration would include the style of the piece, if the accessory features any gemstones and what the gems are, where it was made, its condtion and more. A certified appraiser can evaluate 18-karat gold jewelry to determine its value. On 1stDibs, shop a collection of 18-karat gold jewelry from some of the world's top sellers.