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20 carat Aquamarine Diamonds 18K Gold Made in Italy Grounding Bold Cocktail Ring
By Beatrice Barzaghi Milano
Located in Milan, IT
20 carat Aquamarine Diamonds 18K Gold Made in Italy Grounding Bold Cocktail Ring.
Sonoro Pendant
Category
21st Century and Contemporary Italian Modern Cocktail Rings
Materials
Diamond, Aquamarine, White Gold, 18k Gold, Gold
20 Carat Aquamarine, Diamond, Sapphire, and 18K Rose Gold Ring, c. 1950
Located in New York, NY
A 20-carat round-cut aquamarine surrounded by brilliant-cut diamonds and sapphires, ornamented with
Category
Vintage 1950s Unknown Cocktail Rings
Materials
Aquamarine, Diamond, Sapphire, 18k Gold, Rose Gold
Retro Deep Blue 20 Carat Cushion Aquamarine Cocktail Ring
Located in Santa Barbara, CA
This cocktail ring features the most amazing aquamarine you've ever seen. The large, 20.75 carat
Category
Vintage 1940s Retro Cocktail Rings
Materials
Aquamarine, Diamond, Platinum
Retro Gold 20 Carat Natural Aquamarine and Diamond Cocktail Ring Circa 1960
Located in Los Angeles, CA
A magnificent 18K White Gold Aquamarine and Diamond Ring.
The centerstone is an approximately 20
Category
Vintage 1960s Unknown Retro Cocktail Rings
Materials
Aquamarine, Diamond, Gold
Vintage 20 Carat Emerald Cut Aquamarine and RBC Diamond Gold Retro Ring
Located in Montreal, QC
Cut Aquamarine, weighing approx. 20 Carat. Both sides of ring Hand set with Round Brilliant Cut
Category
Mid-20th Century Retro Cocktail Rings
Materials
Aquamarine, Diamond, Gold, 18k Gold, White Gold
20 Carat Heart Cut Aquamarine Tennis Bracelet for Birthday Gift in 925 Silver
Located in New York, NY
20 Carat Heart Cut Aquamarine Bracelet in sterling silver showcases endlessly sparkling natural
Category
21st Century and Contemporary American Modern Tennis Bracelets
Materials
Aquamarine, Silver, Sterling Silver
$925 Sale Price / item
50% Off
W 0.27 in L 7 in
Aquamarine Dangle Earrings With Diamonds 23.80 Carats Silver
Located in Las Vegas, NV
Aquamarine = 20 Carats
(Cut: Baguette , Color: Blue, Origin: Natural)
Diamond = 3.80 Carats
(Cut
Category
21st Century and Contemporary Contemporary Dangle Earrings
Materials
Aquamarine, Diamond, White Diamond, Silver
$2,750 Sale Price
26% Off
H 2.64 in W 1.19 in
Exquisite 161.53 Carat Rose Quartz Necklace Set in 20 Karat Yellow Gold
By Coomi
Located in Secaucus, NJ
Rose Quartz Necklace with 161.53 Carat Rose Quartz, 81.39 Carat Aquamarine, and 4.28 Carat Diamonds
Category
21st Century and Contemporary Thai Contemporary Chain Necklaces
Materials
Aquamarine, Diamond, Quartz, Yellow Gold
Labradorite Carving Bracelet with 2.41 Carat Diamonds and 20 Karat Yellow Gold
By Coomi
Located in Secaucus, NJ
Affinity Bracelet Set in 20 Karat Yellow Gold with 187.11-carat Labradorite Carving, 4.18-carat
Category
21st Century and Contemporary Thai Contemporary Link Bracelets
Materials
Aquamarine, Diamond, Labradorite, Sapphire, Pink Sapphire, Yellow Gold
33 Carat Total Aquamarine Sapphire Diamond Necklace 1970 in 18 Karat Yellow Gold
Located in London, GB
emerald cut aquamarines totalling approximately 20.00 carats punctuated by sapphires totalling
Category
Vintage 1970s British Retro Link Necklaces
Materials
Aquamarine, Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold
20 Carat Aquamarine Diamond Shoulders Ring
Located in Stratford upon Avon, GB
Large aquamarine ring approximately 20cts with triangular diamond shoulders in yellow and white
Category
Mid-20th Century Retro Cocktail Rings
Materials
Aquamarine, Diamond, 18k Gold, Platinum
Retro 20 Carat Aquamarine and Diamond Ring
Located in Aliso Viejo, CA
estimated carat weigh mounted in apprx. 20 carats. The center stone is flanked by eight round diamonds that
Category
Vintage 1950s British Retro Cocktail Rings
Materials
Aquamarine, Diamond, 18k Gold
Ico & the Bird Fine Jewelry 20 carat Aquamarine Diamond Gold Earrings
By Ico & the Bird Fine Jewelry
Located in Los Angeles, CA
with black diamond eyes.
This one of a kind piece features 20 carat of Sparkling Aquamarines and .018
Category
2010s North American Artisan Drop Earrings
Materials
Aquamarine, Diamond, 18k Gold
20 Carat Bright Aquamarine and Diamond Cocktail Ring
Located in New York, NY
This original Ben Moses Jewelry Design ring is made with a remarkably bright 20 Carat Aquamarine
Category
Vintage 1980s Unknown Contemporary Cocktail Rings
Materials
Aquamarine, Diamond, 14k Gold
Solitaire Aquamarine 20 Carat Cocktail Ring 18 Karat White Gold
Located in Geneva, CH
mesmerizing 20-carat light blue emerald-cut aquamarine, capturing the essence of the ocean's depth and allure
Category
21st Century and Contemporary French Art Deco Cocktail Rings
Materials
Aquamarine, White Gold
20 Carat Sri Lankan Blue Aquamarine Diamonds 18 Karat White Gold Cocktail Ring
By D and A Style
Located in Singapore, SG
Cocktail ring - about 20 carat aquamarine, white gold and diamonds.
This ring is one of a kind
Category
21st Century and Contemporary Armenian Modern Cocktail Rings
Materials
Aquamarine, Diamond, Gold, Yellow Gold, White Gold, Rose Gold, 18k Gold,...
Romantic 20 Carat Heart Shape Aquamarine and Diamond Ring
Located in Lambertville, NJ
Gleaming 14kt. yellow gold handmade aquamarine and diamond ring. The center is set with a fine
Category
Late 20th Century Cocktail Rings
Materials
Aquamarine, Diamond, 14k Gold
Kanjimull 20 ct Aquamarine, Pink Sapphires and Diamond Cocktail Ring
Located in New Delhi, DL
Handmade in our workshop by expert craftsmen.
The 20 carat flawless aquamarine gem is flanked by 2
Category
21st Century and Contemporary Indian Contemporary Cocktail Rings
Materials
Aquamarine, Diamond, Pink Sapphire, 18k Gold
1-1/20 ct. Aquamarine and Diamond Accent Dangle Earrings in 14K Yellow Gold
By Affinity Designs LLC
Located in New York, NY
Crafted with exquisite detail, each of these earrings features a stunning oval aquamarine
Category
2010s Asian Contemporary Dangle Earrings
Materials
Aquamarine, Diamond, Yellow Gold
Intini Jewels Gold Plate Chain Aquamarine Rondelles Handmade Bracelet
By Intini Jewels
Located in Milano, IT
• Aquamarine rondelles 11 carats
• Total Weight 3.5 g
Please be aware as per terms and conditions all customs
Category
21st Century and Contemporary Italian Art Nouveau Chain Bracelets
Materials
Aquamarine, Gold, Yellow Gold, Gold Plate
Intini Jewels 9 Karat Yellow Gold Chain Aquamarine Rondelles Handmade Bracelet
By Intini Jewels
Located in Milano, IT
g
• Total length 20 cm
• Aquamarine rondelles 11 carats
• Total Weight 3.5 g
Please be aware as
Category
21st Century and Contemporary Italian Art Nouveau Chain Bracelets
Materials
Aquamarine, Gold, Yellow Gold, 9k Gold
Intini Jewels 18 Karat Yellow Gold Chain Aquamarine Rondelles Handmade Bracelet
By Intini Jewels
Located in Milano, IT
g
• Total length 20 cm
• Aquamarine rondelles 11 carats
• Total Weight 3.5 g
Please be aware as
Category
21st Century and Contemporary Italian Art Nouveau Chain Bracelets
Materials
Aquamarine, Gold, 18k Gold, Yellow Gold
Intini Jewels Aquamarine Rondelle Gold Plate Earrings Necklace Bracelet Set
By Intini Jewels
Located in Milano, IT
Bracelet
• Gold Plate
• Total length 20 cm
• Aquamarine rondelles 11 carats
• Total Weight 3.5 g
Category
21st Century and Contemporary Italian Art Nouveau Chain Necklaces
Materials
Aquamarine, Gold, Yellow Gold, Gold Plate
18K Checkerboard Faceted 20ct Aquamarines and Diamonds One of a Kind Earrings
Located in Palm Beach, FL
, checkerboard faceted 20 carats total weight, aquamarines are the focal point! Dotted in gold her signature
Category
2010s American Artisan Clip-on Earrings
Materials
Aquamarine, Diamond, 18k Gold
$19,990
W 1 in L 1.25 in
Intini Jewels Aquamarine Rondelle 9 Karat Gold Earrings Necklace Bracelet Set
By Intini Jewels
Located in Milano, IT
8.2g
Bracelet
• 9 karat yellow gold 1.3 g
• Total length 20 cm
• Aquamarine rondelles 11 carats
Category
21st Century and Contemporary Italian Art Nouveau Chain Necklaces
Materials
Aquamarine, Gold, Yellow Gold, 9k Gold
Intini Jewels Aquamarine Rondelle 18 Karat Gold Earrings Necklace Bracelet Set
By Intini Jewels
Located in Milano, IT
8.2g
Bracelet
• 18 karat yellow gold 1.3 g
• Total length 20 cm
• Aquamarine rondelles 11 carats
Category
21st Century and Contemporary Italian Art Nouveau Chain Necklaces
Materials
Aquamarine, Gold, 18k Gold, Yellow Gold
Julia Boss One of a Kind 18K Checkerboard Faceted 20CT Aquamarine & Diamond Ring
Located in Palm Beach, FL
thrilled to offer her pieces! This amazing 20 carat checkerboard faceted aquamarine the focal point of her
Category
21st Century and Contemporary American Artisan Cocktail Rings
Materials
Aquamarine, Diamond, 18k Gold
Retro 20 Carat Aquamarine Diamond Gold Ring
Located in Napoli, NA
handmade wave design.
The ring is set with a stunning 20 carat Aquamarine of perfect cut and great quality
Category
Vintage 1940s Retro Cocktail Rings
Materials
Aquamarine, Diamond, Gold, 18k Gold
20 Carat Aquamarine Diamonds Two Color Gold Brooch
Located in Miami, FL
14k yellow and rose gold vintage brooch featuring a shield cut aquamarine weighing approximately
Category
21st Century and Contemporary American Brooches
Materials
Aquamarine, Diamond, White Diamond, 14k Gold
20 Carat Aquamarine Antique 14k Rose Gold Brooch
Located in Surfside, FL
Marvelous antique brooch with over 20 carats in natural gem-quality Aquamarines (from the Santa
Category
20th Century Brooches
Materials
Yellow Gold, Rose Gold
1960s GIA 20 carats Aquamarine Diamond Platinum Cocktail Ring
Located in Miami, FL
diamonds on a platinum mounting.
Aquamarine is reported to be approx. 20 carats. From Natural Beryl
Category
Vintage 1960s Retro Cocktail Rings
Materials
Aquamarine, Diamond, Platinum
Art Nouveau Antique 20 Carat Aquamarine Diamond Gold Pendant
Located in Chicago, IL
Circa 1910s
An antique 14K greenish-yellow pendant features a large oval natural aquamarine. The
Category
Early 20th Century Art Nouveau Drop Necklaces
Materials
Aquamarine
Art Deco 20 Carat Aquamarine and Diamond Dangle Earrings
Located in Beverly Hills, CA
Art Deco aquamarine and diamond dangle earrings showcasing 20 carats of vivid, clean aquamarine
Category
Early 20th Century Unknown Art Deco Dangle Earrings
Materials
Aquamarine, Diamond, White Diamond, Gold, 14k Gold, White Gold
Stambolian 20-Carat Aquamarine and Diamond Ring in 18 Karat Gold
By Stambolian
Located in Towson, MD
One 18 karat white gold (stamped 18K) ring by Stambolian, set with one 20. carat oval aquamarine
Category
21st Century and Contemporary Modern Cocktail Rings
Materials
Diamond, Aquamarine, Yellow Gold, White Gold, 18k Gold, Gold
Art Deco Style 18 Karat Gold 20 Carat Aquamarine Diamond Cocktail Ring
Located in Vilnius, Vilniaus apskr.
white gold. It features amazing 20ct (19x15x9 mm) emerald cut aquamarine. The gem is accompanied with
Category
Late 20th Century Swedish Art Deco Cocktail Rings
Materials
Diamond, Aquamarine, Gold, 18k Gold
Aquamarine and Diamond Ring
Located in Carmel-by-the-Sea, CA
A beautiful 20 carat Aquamarine is highlighted by 34 diamonds totaling .50 carats.
Category
20th Century Fashion Rings
Materials
Aquamarine, 18k Gold
20.0 Carat Aquamarine and Diamond Ring
Located in Litchfield, CT
: 20-carat aquamarine and .14 carats total weight of G color, VS clarity diamonds
HALLMARKS: 14k
Category
Vintage 1950s American Cocktail Rings
Materials
Aquamarine, Diamond, 14k Gold, White Gold
Fabulous Aquamarine & Diamond White Gold Necklace
Located in Carmel-by-the-Sea, CA
Show Stopping Aquamarine & Diamond 18K White Gold Necklace featuring a dramatic 20 Carat Aquamarine
Category
21st Century and Contemporary Drop Necklaces
Materials
Diamond, Aquamarine, 18k Gold, White Gold
20ct Aquamarine Diamond Ring Vintage Large Oval Cocktail Jewelry 18k White Gold
Located in Torrance, CA
Stylish vintage estimated 20 carat aquamarine & diamond cocktail ring (circa 1960s to 1970s
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Aquamarine, Diamond, White Diamond, Gold, 18k Gold, White Gold
Aquamarine 20 carats and Diamond Ring
Located in Firenze, IT
a step-cut aquamarine weighing 21.7 cts, within a brilliant-cut diamond shoulder, mounted in
Category
21st Century and Contemporary Italian Fashion Rings
Materials
Aquamarine, Diamond, Platinum
Aquamarine Pendant 20 Carat with Diamonds 6 Carat F-G/VS and Pearl Necklace
Located in Las Vegas, NV
Aquamarine 20 Carat
Diamonds = 6 Carats
( Color: F-G, Clarity: VS )
Pearls = 6 milimeters
Metal
Category
Late 20th Century Art Deco Pendant Necklaces
Materials
Aquamarine, Diamond, Pearl, Gold, 14k Gold, 18k Gold, Yellow Gold
Cocktail Ring in 18K Gold with a 20-Carat Natural Aquamarine.
Located in PARIS, FR
aquamarine weighing approximately 20 carats (16 x 13 x 8 mm).
Detailed Characteristics:
Weight: 7.9 g
Size
Category
20th Century Cocktail Rings
Materials
Aquamarine, Gold, 18k Gold, White Gold
20 Carat Emerald Cut Aquamarine & Diamond 14 Karat White Gold Cocktail Ring
Located in Boca Raton, FL
aquamarine weighs approximately 20 carats and the 6 round brilliant cut diamond accents weigh approximately
Category
Late 20th Century American Modern Cocktail Rings
Materials
Aquamarine, Diamond, 14k Gold, White Gold
13.53 Carat Modernist Aquamarine Diamond and Gold Ring
Located in Litchfield, CT
aquamarine framed by four brilliant white diamonds (.20 carats total weight, G-H color, SI1 clarity). Its
Category
Vintage 1950s American Fashion Rings
Materials
Aquamarine, Diamond, 14k Gold
Antique Aquamarine Brooch
Located in Surfside, FL
Aquamarines (average 0.55 to 0.75 carat each) for a total weight of over 20 carats. All Natural color, no
Category
20th Century Brooches
Materials
Aquamarine, Mixed Metal
1960s Aquamarine-Set Gold Ring
Located in Litchfield, CT
Circa 1960s, 14k, American. Everyday chic sixties style, this ring features a 20 carat bright blue
Category
Vintage 1960s American Cocktail Rings
Materials
Aquamarine, 14k Gold, Yellow Gold
Mozafarian Aquamarine and Diamond Ring in 18K White Gold
Located in London, GB
This magnificent Mozafarian ring features a breathtaking 20 carat emerald-cut aquamarine, its
Category
21st Century and Contemporary European Artisan Engagement Rings
Materials
Aquamarine, Diamond, 18k Gold, White Gold
Aquamarine and Diamond Set Gold Earrings
Located in Litchfield, CT
carats of vibrant aquamarine, perfectly balanced with .20 carats of brilliant diamonds (I color, SI1
Category
Vintage 1980s American Stud Earrings
Materials
Aquamarine, Diamond, 14k Gold
Vintage Rectangular Cut Natural Aquamarine White Gold Cocktail Ring
Located in London, GB
This beautiful ring is fully made in 18kt white gold and features an incredible 20 carat
Category
Vintage 1960s French Cocktail Rings
Materials
Aquamarine, 18k Gold, White Gold
Retro Forties Aquamarine-Set Gold Earrings
Located in Litchfield, CT
Circa 1940s, 14k, American. Set with 20.0 carats of superbly-hued aquamarine stones (10 carats each
Category
Vintage 1940s American Clip-on Earrings
Materials
Aquamarine, Gold, 14k Gold
Aquamarine and Diamond Set Gold Ring
Located in Litchfield, CT
classic.”
SIZE: Ring Size 7
WEIGHT: 8.0 grams
STONES: 4.15 carat aquamarine and .20 carat
Category
Vintage 1980s American Cocktail Rings
Materials
Aquamarine, White Diamond, Yellow Gold, 18k Gold
LB Exclusive 14K White Gold 1.40ct Diamond and Aquamarine Ring
By LB Exclusive
Located in Southampton, PA
-carat( approximately) aquamarine center stone on a cage setting. Surrounding it is a rectangular frame
Category
21st Century and Contemporary Cocktail Rings
Materials
Aquamarine, Diamond, 18k Gold, White Gold
LeVian 1ctw Aquamarine and Diamond Pendant, 14k Rose Gold, Length .5 Inches
By Suzy Levian
Located in McLeansville, NC
brilliant cut
- 1.2 mm
- approximately .20 total carats
-Brn, SI2-I1
- aquamarine, 1 stone
- european
Category
21st Century and Contemporary Pendant Necklaces
Materials
Aquamarine, Diamond, 14k Gold, Rose Gold
Retro 20ct Aquamarine Ring Vintage 14k Rose Gold Cocktail Jewelry Sz 5
Located in Torrance, CA
.
Emerald cut aquamarine measures 20mm x 15mm (estimated at 20 carats). The aquamarine is in very good
Category
Mid-20th Century American Retro Cocktail Rings
Materials
Aquamarine, Gold, 14k Gold, Rose Gold
20 Carat Aquamarine
Located in Las Vegas, NV
• 20 Carat Aquamarine
No enhancement
• Rose Gold Setting
• Circa 1900
Category
Antique Early 19th Century Cocktail Rings
Materials
Aquamarine, Rose Gold
20 Carat Aquamarine, Diamond and 14K Gold Ring
Located in Hicksville, NY
This dazzling 1964 14K White Gold, Diamond and Aquamarine Ring features a 20 carat emerald cut
Category
Mid-20th Century Unknown Modern Cocktail Rings
Materials
Aquamarine, Diamond, 14k Gold, White Gold
Tiffany & Co. Retro 1940s 20 Carat Aquamarine gold cocktail Ring
By Tiffany & Co.
Located in Litchfield, CT
jewel features a dazzling 20.15 carat aquamarine. Large gemstone rings were the rage in the forties and
Category
Vintage 1940s American Retro Cocktail Rings
Materials
Aquamarine, 14k Gold
1940s 20 Carat Aquamarine and Diamond Ring, 14 Karat Gold
Located in Hicksville, NY
Details:
Cut: Step Emerald Cut
Color: Santa Maria
Carat: 20 carats
Type: Aquamarine
Diamond Details
Category
Vintage 1940s American Retro Cocktail Rings
Materials
Aquamarine, Diamond, Gold, 14k Gold
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20 Carat Aquamarine For Sale on 1stDibs
Find the exact 20 carat aquamarine you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. Our collection of these items for sale includes 363 vintage editions and 51 modern creations to choose from as well. Making the right choice when shopping for a 20 carat aquamarine may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular piece, 1 Carat and 1.5 Carat are consistently popular carat weights. Finding an appealing 20 carat aquamarine — no matter the origin — is easy, but Luigi Ferrara, Tiffany & Co. and H. Stern each produced a popular version that is worth a look. Today, if you’re looking for an emerald cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and round cut alternatives. When shopping for a 20 carat aquamarine, you’ll find that there are less available pieces for unisex or men today than there are for women.
How Much is a 20 Carat Aquamarine?
The price for a 20 carat aquamarine starts at $296 and tops out at $105,000 with these rings, on average, selling for $4,952.
The Legacy of Aquamarine in Jewelry Design
Perhaps the one gemstone that best embodies the glimmering blue of the ocean is aquamarine, not just in name but also in color. Aqua marina (Latin for water and sea), March’s birthstone, is often crystal clear and blue. Often affordable in price, vintage and antique aquamarine jewelry belongs in everyone’s jewelry box.
Aquamarine is a precious gemstone from the mineral beryl family. Its cousin is the emerald. Like other beryl varieties, aquamarines are rated 7.5 to 8 on the Mohs Hardness Scale. This means that they are soft enough for jewelers to cut to their client’s specs but also durable enough for daily wear.
On land or sea, aquamarines feature prominently in many folk tales, including one about mermaids gifting aquamarine to sailors to protect them during sea voyages. Worn around sailors’ necks as an amulet, it kept them from getting seasick and, most importantly, from shipwrecks. Considered a symbol of courage by some, aquamarine amulets were also favored by Egyptian and Hebrew warriors during battle.
Aquamarine has also made appearances on some of the grandest of great dames. The Brazilian government gifted Eleanor Roosevelt with a 1,847-carat aquamarine in 1935 and Queen Elizabeth II received a sizable aquamarine upon her 1953 coronation; this stone is now the focal point of her aquamarine tiara. And renowned Tiffany & Co. designer Jean Schlumberger made a diamond Bow setting for a 148.5-carat aquamarine, which was originally exhibited at the 1893 World’s Columbian Exhibition, now in the collection of the Field Museum of Natural History in Chicago.
On 1stDibs, find a range of vintage and antique aquamarine jewelry that includes unique aquamarine rings, necklaces and other accessories.
Questions About 20 Carat Aquamarine
- 1stDibs ExpertApril 5, 2022The term “20 carat gold” does not have a meaning. “Carat” is a unit of measurement used to describe the size of gemstones. “Karat” is the unit used to describe gold precious metal. Gold stamped as 20 karat or 20K is 83.3 percent pure gold and 16.7 percent metal alloy. You'll find a wide variety of gemstone jewelry on 1stDibs.