Skip to main content

18 Ct Aquamarine

11
to
52
345
134
331
178
172
67
53
29
28
19
15
14
13
12
12
12
9
7
5
4
2
1
1
1
1
1
1
20
13
10
7
6
Sort By
27.00 Ct Aquamarine Diamond 18 Kt ring
Located in Napoli, IT
aquamariner The ring weighs 13.9 grams Metal: 18 Kt white gold Hallmarks: assay Gems: 1 oval faceted cut
Category

Mid-20th Century Italian Contemporary Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold

Retro 51.00 Ct Aquamarine .90 Ct Diamond Tank 18 KT Bracelet
Located in Napoli, IT
piece of vintage jewellery The main Aquamarine is 51.00 CT – (22.09 x 20.4 mm.) – 100% natural untreated
Category

Vintage 1930s European Retro Retro Bracelets

Materials

Aquamarine, Diamond, 18k Gold

Retro 10.00 Ct Aquamarine Diamond 18 Kt Ring
Located in Napoli, IT
: 18 Kt white gold Hallmarks: assay Gems: 1 rectangular faceted cut natural aquamarine of 10.00 Ct
Category

Vintage 1940s European Retro Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold

Art Deco Style 3.40 Ct Aquamarine 1.10 Ct Diamond 18 KT Ring
Located in Napoli, IT
reverse side and rich Diamond complement Aquamarine of 3.40 Ct (9.4 x 7.5 mm.) emerald octagonal cut
Category

Vintage 1970s European Art Deco Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold

Art Deco 48.83 Ct Aquamarine 4.25 Ct Diamond Rare 18 Kt /Plat Necklace
Located in Napoli, IT
untreated Aquamarines for a total content of 49.0 CT, each set in its dedicated hand crafted fitting with
Category

Vintage 1930s European Art Deco Link Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Platinum

Ct 15.64 Aquamarine and Diamonds 18 Kt Gold Cocktail Ring
Located in Cattolica, IT
without inclusions in its inside. The Aquamarine weighs ct 15,64 and has a deep emerald cut. The four
Category

1990s Italian Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold

6.20 Ct Aquamarine 1.60 Ct Diamond Retro Ring
Located in Napoli, IT
faceted cut natural aquamarine of approx 6.20 Ct (13.5 x 10.7 mm.) – 2 tiers of brilliant cut diamonds
Category

Vintage 1940s European Retro Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, Platinum

18 Kt. White Gold Earrings with 6.02 Ct Aquamarine and Diamonds
Located in AMSTERDAM, NL
) 2 pieces oval faceted aquamarines total 6.02ct. Natural diamonds : 0.55 ct F/G/VS/SI Earrings
Category

2010s Belgian Modern Dangle Earrings

Materials

Aquamarine, 18k Gold, White Gold

12.6 CT's Aquamarine & Diamond Studded Ring in 18 karat White Gold
Located in JAIPUR, IN
Step into the world of unparalleled luxury with our impeccably crafted 18 karat White Gold Ring
Category

2010s Indian Fashion Rings

Materials

Diamond, Aquamarine, 18k Gold, White Gold

Edwardian 20.30 Ct Aquamarine 1.40 Ct Diamond Platinum Pendant
Located in Napoli, IT
Aquamarine of gorgeous sky Blue color estimate 20.30 Ct (21.4 x 17.3 mm) making the focal point of the piece
Category

Antique Early 1900s European Edwardian Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Platinum

Art Deco Style 17.80 Ct Natural Aquamarine Diamond Drop Pendant 18 KT
Located in Napoli, IT
This beautiful Art Deco Style Aquamarine & Diamond drop pendant has been hand crafted of solid 18
Category

Early 2000s Italian Art Deco Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold

Estate 8.00 Ct Natural Aquamarine 1.20 Ct Diamond Drop Earrings
Located in Napoli, IT
effective design hand crafted of solid 18 KT white gold, tested Set with centre Natural Aquamarine of bright
Category

Mid-20th Century European Contemporary Drop Earrings

Materials

Aquamarine, Diamond, 18k Gold

Edwardian 35.0 CT Natural Aquamarine 1.50 Ct Diamond Rare Brooch Pendant
Located in Napoli, IT
the large Natural Aquamarine set in the middle, 35.00 Ct. in weight (24.32 mm. x 18.49 mm.), gorgeous
Category

Antique Early 1900s Italian Edwardian Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Silver

Fusion Ring with 6.06 ct Rhodolite Garnet, 4.8 ct Aquamarine, 1.64 ct Tourmaline
Located in PARIS, FR
: Rhodium-plated 750 white gold: 13.53 g Rhodolite Garnet IF : 6.06 ct Aquamarine VS + : 4.80 ct Tourmaline
Category

21st Century and Contemporary French Contemporary Cocktail Rings

Materials

Tourmaline, Rhodolite, Aquamarine, Garnet, Gold, 18k Gold, White Gold

Estate 17.50 Ct. Aquamarine Natural Sapphire Diamond Pendant
Located in Napoli, IT
The principle Aquamarine is a known weight of 17.50 Ct. (21.4 mm. x 12.9 mm.) – 100% natural
Category

Mid-20th Century Italian Contemporary Pendant Necklaces

Materials

Aquamarine, Diamond, Sapphire, 18k Gold, Platinum

Signed Giovane Aquamarine 8.20 Ct Diamond High End Necklace
By Giovane
Located in Napoli, IT
jewelry refinement Signed Giovane, is composed by stunning colour natural untreated Aquamarine – four
Category

Vintage 1980s Italian Contemporary Multi-Strand Necklaces

Materials

Aquamarine, Diamond, 18k Gold

Aquamarine Diamonds 18 Carat Gold Necklace
Located in Berlin, DE
Tear drop shaped aquamarine surrounded by 30 brilliant-cut diamonds 2 emerald-cut aquamarine, 3
Category

Vintage 1940s Chain Necklaces

Materials

Aquamarine, Diamond, 18k Gold, White Gold

11.50 Ct. Emerald-Cut Aquamarine and Diamond Cocktail Ring, 18K
Located in New York, NY
An Emerald-Cut Aquamarine and Diamond Cocktail Ring made in 18 Karat Yellow Gold. The aquamarine
Category

20th Century Cocktail Rings

Materials

Aquamarine, Diamond

18 Karat Yellow Gold Aquamarine Pendant Necklace
Located in Washington Depot, CT
18 Karat Yellow Gold Aquamarine Pendant Necklace GAI Certified- This stunning pendant necklace
Category

20th Century Pendant Necklaces

Materials

Aquamarine, Yellow Gold

18 Karat White Gold Aquamarine Ring #13683
Located in Washington Depot, CT
Vintage 18 Karat White Gold Aquamarine Ring Size 5.25 JAGi Certified- This stunning ring features
Category

20th Century Solitaire Rings

Materials

Aquamarine, White Gold

18 Karat White Gold Aquamarine Ring #14037
Located in Washington Depot, CT
. Aquamarine weight: 2.62 ct. Ring Size: 4.5 Weight: 3.8 gr./ 2.4 dwt. Hallmark: 18K JAGi Certificate
Category

20th Century Cocktail Rings

Materials

Aquamarine, White Gold

Art Deco Sweet 7.0 Ct Natural Aquamarine Diamond Drop earrings
Located in Napoli, IT
Aquamarine classy briolette faceted cut for a total estimate of 7.0 CT for both drops(10 x 6 mm. average size
Category

Vintage 1930s European Art Deco Drop Earrings

Materials

Diamond, Aquamarine, 18k Gold

Kutchinsky London 1970 Convertible Collar Platinum 154.2 Ct Diamonds Aquamarines
By Kutchinsky
Located in Miami, FL
four Brazilian blue aquamarines, with a combined weight of 124.52, described as follow. One large
Category

Vintage 1970s English Modernist Chain Necklaces

Materials

Aquamarine, Diamond, Platinum

Aquamarine, 18 Karat Rose Gold Moden Necklace
Located in Marcianise, Marcianise (CE)
mounted with four aquamarines. Aquamarines 0.40 ct Total Weight 5.20 gr RF +GOEC Maximum Lenght 45 cm
Category

2010s Italian Modern Chain Necklaces

Materials

Aquamarine, 18k Gold, Rose Gold

Aquamarine, Diamonds, 18 Karat White Gold Earrings.
Located in Marcianise, Marcianise (CE)
mounted with a central aquamarine surrounded by a crown of diamonds. Diamonds 1.87 ct Aquamarine 4.36 ct
Category

2010s Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine Diamond 18 Carat Gold Cocktail Ring
Located in Berlin, DE
Set with aquamarine weighing ca. 28 ct. Framed by 138 brilliant-cut diamonds weighing ca. 2.7ct
Category

Vintage 1970s European Post-War Cocktail Rings

Materials

Aquamarine, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Bracelet
Located in Marcianise, Marcianise (CE)
a row of aquamarine and, for each side, a row of diamonds. Diamonds 3.17 ct Aquamarine 13.38 ct
Category

2010s Italian Modern Tennis Bracelets

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Ring.
Located in Marcianise, Marcianise (CE)
0.40 ct Aquamarine 0.68 ct Total Weight 3.50 gr RF +GRIU Italian Size 15.5 French Size 55.5 Usa Size
Category

2010s Italian Modern Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Ring.
Located in Marcianise, Marcianise (CE)
aquamarine and, between of them, two diamonds. Diamonds 0.17 ct Aquamarine 1.91 ct - 6 mm x 4 mm Total Weight
Category

2010s Italian Modern Three-Stone Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Ame de Feu Ring with 5.9 ct Hessonite Garnet, 0.84 ct Aquamarine, 7.13g 18k Gold
Located in PARIS, FR
garnet VS + : 5.9 ct Aquamarine VVS : 0.84 ct Daily use Unique piece Size : 54 Sizing possible, please
Category

21st Century and Contemporary French Contemporary Cocktail Rings

Materials

Garnet, Hessonite, Aquamarine, Gold, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Ring
Located in Marcianise, Marcianise (CE)
aquamarine and,laterally,three diamonds. Diamonds 0.09 ct Aquamarine 1.02 ct - 7 mm x 5 mm Total Weight 2.30
Category

2010s Italian Modern Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

One of a Kind Ring in 18 Carat White Gold, with 1 Aquamarine of 140.4 ct
By Colleen B. Rosenblat
Located in Hamburg, DE
This very special cut could remind you of an iceberg. It has a length of 48 mm and a wide of 29 mm. The head of the ring is 24 mm high. Ring size: 54 (US 6.8) Designed by Colleen B. ...
Category

1990s German Contemporary Fashion Rings

Materials

Aquamarine, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Ring
Located in Marcianise, Marcianise (CE)
mounted with an aquamarine in the central part surrounded by little diamonds. Diamonds 0.19 ct Aquamarine
Category

21st Century and Contemporary Italian Modern Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

18 Karat White Gold Diamond and Aquamarine Earrings
By Gianni Lazzaro
Located in Duesseldorf, DE
Beautiful 18 Karat white gold cocktail earrings with diamonds and Aquamarine .This Earrings
Category

21st Century and Contemporary German Clip-on Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

18 Karat White Gold Diamond and Aquamarine Earrings
18 Karat White Gold Diamond and Aquamarine Earrings
Free Shipping
W 0.99 in Dm 0.99 in L 0.99 in
Aquamarine, Diamonds, 18 Karat White Gold Pendant Necklace.
Located in Marcianise, Marcianise (CE)
. Diamonds 0.38 ct Aquamarine 1.69 ct Total Weight 4.60 gr RF +UGEA Lenght Chain 45 cm Lenght Pendant 3.2
Category

2010s Italian Modern Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Art Deco Style Aquamarine Diamond 18 Kt Ring
Located in Napoli, IT
: assay indistinctly signed Gems: 1 oval faceted cut natural aquamarine of approx 1.40 Ct (8.1 x 6.1 mm
Category

Mid-20th Century European Art Deco Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Earrings
Located in Marcianise, Marcianise (CE)
with a central aquamarine surrounded by diamonds. Diamonds 0.35 ct Aquamarine 1.06 ct 5 mm x 4 mm Total
Category

2010s Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Pendant Necklace.
Located in Marcianise, Marcianise (CE)
mounted with an aquamarine surrounded by diamonds. The chain is included. Diamonds 0.14 ct Aquamarine 0.20
Category

2010s Italian Modern Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Stud Earrings
Located in Marcianise, Marcianise (CE)
mounted with an oval aquamarine surrounded by a frame of diamonds, Diamonds 1.54 ct Aquamarine 3.41 ct- 9
Category

2010s Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Antique 17.60 Carat Cushion Aquamarine 18 KT Pendant
Located in Napoli, IT
rectangular cut natural aquamarine of approx 17.60 Ct (23.80 mm. x 13.60 mm.) – 6 pearls of 3.1 mm. in
Category

Early 20th Century European Arts and Crafts Pendant Necklaces

Materials

Aquamarine, 18k Gold

Aquamarine, Diamonds, 18 Karat White Gold Flower Earrings
Located in Marcianise, Marcianise (CE)
mounted with little aquamarine in the central part surrounded by little diamonds. Diamonds 0.31 ct
Category

21st Century and Contemporary Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring
Located in Marcianise, Marcianise (CE)
with a central aquamarine surrounded by a frame of diamonds. Diamonds 0.14 ct Aquamarine 0.20 ct Total
Category

2010s Italian Modern Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Fraleoni 18 Kt. White Gold Diamond Aquamarine Earrings
By FRALEONI
Located in Rome, IT
Orecchini realizzati a mano in Italia in oro bianco 18 kt. con diamanti taglio brillante e
Category

2010s Italian Modern Dangle Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring.
Located in Marcianise, Marcianise (CE)
with a dro aquamarine surrounded by diamonds. Diamonds 0.22 ct Aquamarine 0.84 ct - 7mm x 5 mm Total
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, Aquamarine, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring
Located in Marcianise, Marcianise (CE)
with oval aquamarine and, between of them, rows of diamonds. Diamonds 0.86 ct Aquamarine 3.06 ct - 6
Category

2010s Italian Modern Fashion Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring
Located in Marcianise, Marcianise (CE)
with a central aquamarine and,on each side,three diamonds. Diamonds 0.09 ct Aquamarine 0.58 ct - 6 mm x
Category

2010s Italian Modern Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarines, Diamonds, 18 Karat White Gold Stud Earrings
Located in Marcianise, Marcianise (CE)
structure mounted with a flower of aquamarine in the center surrounded by white diamonds. Diamonds 0.26 ct
Category

Early 2000s Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring
Located in Marcianise, Marcianise (CE)
with three aquamarine and surrounded by little diamonds laterally. Diamonds 0.03 ct Aquamarine 0.23 ct
Category

Early 2000s Italian Modern Engagement Rings

Materials

Diamond, Aquamarine, 18k Gold, White Gold

18 K White Gold Fine Aquamarine Diamond Ring
Located in Zurich, Zollstrasse
Lovely 18 K white Gold Ring featuring 3 lovely oval light blue Aquamarines weighing 2.47 ct. Each
Category

Early 2000s Swiss Contemporary Three-Stone Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine, Diamonds, 18 Karat White Gold Stud Earrings
Located in Marcianise, Marcianise (CE)
earrings goes back to the 2000s and they are in perfect condition. Diamonds 0.22 ct Aquamarine 0.56 ct
Category

Early 2000s Italian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

18 Karat White Gold Aquamarine Ring Size 5.5 #14216
Located in Washington Depot, CT
Vintage 18 Karat White Gold Aquamarine Ring Size 5.5 JAGi Certified- This stunning ring features
Category

20th Century Cocktail Rings

Materials

Aquamarine, White Gold

18 K White Gold Eternity Band Aquamarine Amethyst
Located in Zurich, Zollstrasse
Modern and solid 18 K whiteGold eternity band featuring 6 oval bezel set Aquamarines with a total
Category

2010s German Contemporary Band Rings

Materials

Amethyst, Aquamarine, 18k Gold, White Gold

Turquoise, Aquamarine, Diamonds, 18 Karat Yellow Gold Ring
Located in Marcianise, Marcianise (CE)
. Diamonds 0.69 ct Aquamarine 2.84 ct Turquoise 1 gr - 13 mm x 10 mm Total Weight 13.90 gr RF +IURI Italian
Category

Vintage 1960s Italian Retro Cluster Rings

Materials

Aquamarine, Diamond, Turquoise, 18k Gold, Yellow Gold

Turquoise, Aquamarine, Diamonds, 18 Karat White Gold Ring
Located in Marcianise, Marcianise (CE)
ct Aquamarine 2.84 ct Turquoise 0.90 gr - 15 mm x 9 mm Total Weight 13.50 gr RF +IUAE Italian Size
Category

Vintage 1960s Italian Retro Cluster Rings

Materials

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

1-3/4 ct. Aquamarine and Diamond Accent 14K Rose Gold Pendant Necklace
By Affinity Designs LLC
Located in New York, NY
Aquamarine: 5.0 X 3.0mm A Quality Round Single-Cut White Diamond: 1.2mm Length Approximations: Necklace: 18
Category

2010s Asian Contemporary Pendant Necklaces

Materials

Aquamarine, Rose Gold

Aquamarine, Diamonds, 18 Karat White Gold Modern Ring
Located in Marcianise, Marcianise (CE)
Aquamarine 1.48 ct - 6 mm x 4 mm Total Weight 2.60 gr RF +GAOO Italian Size 17.5 Usa Size 8.17 French Size
Category

21st Century and Contemporary Italian Modern Engagement Rings

Materials

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

Moiseikin 18 Karat Gold Diamond Aquamarine Cocktail Earrings
By MOISEIKIN
Located in Hong Kong, HK
spark and a pair of sky blue aquamarines weighing over 22ct hang and swing comfortably. Dangling and
Category

21st Century and Contemporary Russian Contemporary Lever-Back Earrings

Materials

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

Aquamarine, Diamonds, 18 Karat Rose Gold Heart Pendant Necklace.
Located in Marcianise, Marcianise (CE)
structure mounted with three central aquamarine surrounded by a frame of diamonds. Diamonds 0.27 ct
Category

2010s Italian Modern Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Rose Gold

Tiffany & Co. Set of Aquamarine 18 Karat Yellow Gold Earrings
By Paloma Picasso for Tiffany & Co.
Located in Switzerland, CH
Stunning TIFFANY & CO. PALOMA PICASSO AQUAMARINE EARRINGS Vibrant oval-cut aquamarine stones of
Category

21st Century and Contemporary Stud Earrings

Materials

Aquamarine, Yellow Gold

18.93 Carat Aquamarine Yellow Gold Pendant
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 18.93 Carat aquamarine and contemporary 18 karat yellow
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Aquamarine, 18k Gold, Yellow Gold

18.93 Carat Aquamarine Yellow Gold Pendant
18.93 Carat Aquamarine Yellow Gold Pendant
Free Shipping
H 0.43 in W 0.54 in L 0.94 in
  • 1
Get Updated with New Arrivals
Save "18 Ct Aquamarine", and we’ll notify you when there are new listings in this category.

18 Ct Aquamarine For Sale on 1stDibs

You are likely to find exactly the 18 ct aquamarine 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. Find an antique version now, or shop for 243 vintage or 287 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a 18 ct aquamarine from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th 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 ct aquamarine over the years, but those made by Elisa Pozza by PETRONILLA, LB Exclusive and Margherita Burgener 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 mixed cut versions for sale. Finding a 18 ct aquamarine for sale for women should be easy, but there are 107 pieces available to browse for unisex as well as men, too.

How Much is a 18 Ct Aquamarine?

On average, a 18 ct aquamarine at 1stDibs sells for $3,500, while they’re typically $65 on the low end and $175,500 for the highest priced versions of this item.