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Alex Jona Aquamarine 18 Karat Yellow Gold Pendant Necklace
By Alex Jona
Located in Torino, Piedmont
an emerald cut aquamarine weighing 1.46 carats. Dimensions: L x 18.11 in / L x 45cm. Alex Jona
Category

21st Century and Contemporary Italian Pendant Necklaces

Materials

Aquamarine, 18k Gold, Yellow Gold

Antique 2.84ct Aquamarine and 0.10ct Diamond and 18ct White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
2.84 carat square faceted cut aquamarine. The elevated ring shoulders are each accented with three
Category

Vintage 1930s Cocktail Rings

Materials

Aquamarine, Diamond, White Gold

Art Deco Platinum 8ct Aquamarine And Diamond Cocktail Ring
Located in Firenze, IT
Art Deco' platinum, aquamarine and diamond cocktail ring, the step-cut-cut aquamarine measuring
Category

Vintage 1920s Italian Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

Modern Aquamarine 18 Karat Yellow Gold Squarred Stud Earrings
Located in Poitiers, FR
gold, each set with a square aquamarine. The clasp is a butterfly. Total weight of aquamarines : 0.40
Category

21st Century and Contemporary French Modern Stud Earrings

Materials

Aquamarine, Gold, 18k Gold, Yellow Gold

18 K White Gold Eternity Band Aquamarine Amethyst
Located in Zurich, Zollstrasse
weight of 3.28 ct and 6 square cut Amethyst weighing 1.79 ct. The ring is currently size 55/15
Category

2010s German Contemporary Band Rings

Materials

Amethyst, Aquamarine, 18k Gold, White Gold

Carlo Weingrill 18K White Gold Aquamarine and Tourmaline Choker Necklace
By Carlo Weingrill
Located in New York, NY
set with 14 square emerald cut aquamarine and 7 square emerald cut pink tourmaline in high clarity
Category

20th Century Italian Modern Choker Necklaces

Materials

Aquamarine, Tourmaline, 18k Gold, White Gold

Contemporary 5.40 CTW Aquamarine Diamond 18 Karat White Gold Band Ring
Located in Philadelphia, PA
Designed as a wide band with alternating rows of aquamarines and diamonds Aquamarines are carré cut
Category

21st Century and Contemporary Engagement Rings

Materials

Aquamarine, Diamond, Gold, White Gold

Natural Aquamarine Diamond Ring in 18k White Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
This is an elegant Aquamarine & Diamond ring studded in 18k White gold features a fine quality of
Category

21st Century and Contemporary Indian Contemporary Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Natural Aquamarine Sapphire Ring in 18k White Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
This is an elegant Aquamarine & Sapphire ring studded in 18k White gold features a fine quality of
Category

21st Century and Contemporary Indian Contemporary Cluster Rings

Materials

Aquamarine, Sapphire, 18k Gold, White Gold

Natural Aquamarine Diamond Ring in 18k White Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
This is an elegant Aquamarine & Diamond ring studded in 18k White gold features a fine quality of
Category

21st Century and Contemporary Indian Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

1.30ctw Aquamarine Diamond Halo Ring 18k White Gold Size 5.75 - 6
Located in McLeansville, NC
Gemstone Information: - Natural Aquamarine - Carats - 0.78ct Cut - Step Cut Rectangle Color - Aqua
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Aquamarine Diamond Convertible Pendant with Chain 60 cm length 18Kt White Gold
Located in München, DE
aquamarine gemstone in a step-cut, approximately 2.80 carats, set at its center. The aquamarine exhibits an
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, Aquamarine, White Gold, 18k Gold

14 Carat Yellow Gold Art Deco Aquamarine Pendant Necklace
Located in Orimattila, FI
14 Carat Yellow Gold Russia Art Deco Aquamarine Pendant Necklace 14k Gold, Russian Gold Stamps 56
Category

Antique 19th Century Russian Russian Empire Pendant Necklaces

Materials

Aquamarine, 14k Gold, Yellow Gold

Aquamarine Cabochon and White Diamond Cocktail Ring in 18k White Gold
Located in Los Angeles, CA
Gorgeous 42.40 ct. aquamarine cabochon with 1.00 ct. good quality white diamond rounds. Handmade
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, White Diamond, White Gold

GIA Certified 1.26 Carat Square Emerald Cut 18k Platinum Ring
Located in Chicago, IL
center, the ring features a Flanders / Elara Cut-Cornered Square Brilliant Cut diamond weighing 1.26 ct
Category

Vintage 1950s American Engagement Rings

Materials

Aquamarine, Diamond, Platinum

Vintage Retro Solid Gold 34.2ctw Large Aquamarine Diamond Ruby Enhancer Pendant
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Aquamarine - Large Square Rectangular Step Cut - Prong Set
Category

20th Century Retro Pendant Necklaces

Materials

Aquamarine, Diamond, Ruby, Gold, White Gold, Yellow Gold

Natural Aquamarine 3 stones Ring in 18k Rose Gold
By GEM PLAZA
Located in Jaipur, Rajasthan
This is an elegant 3 stones Aquamarine & Diamond ring studded in 18k White gold features a fine
Category

21st Century and Contemporary Indian Contemporary Solitaire Rings

Materials

Aquamarine, Diamond, 18k Gold, Rose Gold

2.58 Carat Aquamarine 18 Karat Yellow Gold Solitaire Ring
By VR Jewels
Located in New York, NY
Gold > Gemstone - Aquamarine > Gemstone Weight - 2.58 ct > Gemstone pcs - 1 > Gemstone shape - Square
Category

21st Century and Contemporary American Artist Solitaire Rings

Materials

Aquamarine, 18k Gold, Yellow Gold, Gold

47.33 Carat Aquamarine Diamond Yellow Gold Platinum Cocktail Ring
Located in Stamford, CT
Aqua and diamond cocktail ring. 47.33cts square faceted aquamarine greenish blue center stone set
Category

21st Century and Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, Yellow Gold, Platinum

1940s 4.50 Carats Aquamarine 18 Karat Yellow Gold Retro Signet Ring
Located in Poitiers, FR
aquamarine retained with 4 broad flat claws on both sides. The start of the ring forms a pattern like a bow
Category

Vintage 1940s French Retro Cocktail Rings

Materials

Aquamarine, Gold, 18k Gold, Yellow Gold

Zorab Creation Aquamarine and Diamond Les Trois Carres Ring
By Zorab Creation
Located in San Diego, CA
A bold, colorful and sophisticated three-stone ring featuring a 5.06-carat yellow beryl flanked by two 3.63-carat aqua beryls and further adorned with 1.58-carat diamond pavé. The ge...
Category

2010s American Art Nouveau Three-Stone Rings

Materials

Aquamarine, Beryl, Diamond, 18k Gold, Palladium

18k White Gold with Aquamarine and White Diamonds Ring
Located in GALLARATE, IT
Classic and fashion ring in 18k white gold with Aquamarine (square cut, size:11,5 mm) and white
Category

21st Century and Contemporary Italian Modern Engagement Rings

Materials

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

Aquamarine, Tanzanite Diamond Bangle Circa 1980s
Located in ADELAIDE, SA
: One natural square emerald cut aquamarine, 19.01mm x 19.14mm x 9.94mm, bright light blue colour, eye
Category

Late 20th Century Contemporary Bangles

Materials

Aquamarine, Diamond, Tanzanite, 18k Gold

Art Deco Style Platinum Cocktail Ring 14.65 CTW Aquamarine, Sapphires, Diamonds
Located in Aventura, FL
the essence of the sea. This exquisite gemstone is elegantly surrounded by 40 square-cut blue
Category

1990s Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Set in 18k White Gold, 1.82 Carats, Natural Aquamarine Diamonds Stud Earrings
By JEWEL HUB
Located in Hong Kong, HK
A very dainty and beautiful Aquamarine Stud Earrings set in 18K White Gold & Diamonds. The weight
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Manfredi 1990 Geometric Red Earrings In 18Kt Yellow Gold With Two Aquamarines
By Manfredi
Located in Miami, FL
in bezel settings, with 2 squared step cut (4 x 4 x 4 mm) of natural blue aquamarines, with 1.40
Category

1990s Italian Modernist Clip-on Earrings

Materials

Aquamarine, Gold, 18k Gold, Yellow Gold

Vintage Citrine, Aquamarine, Pink Tourmaline and Gold Multi Gem Ring, Circa 1975
Located in London, GB
A vintage multi gem ring, set with two princess-cut aquamarines, two princess-cut pink tourmalines
Category

Vintage 1970s American Retro Cocktail Rings

Materials

Aquamarine, Citrine, Tourmaline, 14k Gold, Yellow Gold

One Off Top Quality Aquamarine Diamond 18K Gold Made in Italy Grounding Pendant
By Beatrice Barzaghi Milano
Located in Milan, IT
mixed cut top quality aquamarine 4.94 carats weight, 9.55 by 9.4 by 7.2 millimeters and a brilliant cut
Category

21st Century and Contemporary Italian Modern Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Art Deco 18K Gold and Platinum Ring with Aquamarine and Diamonds
Located in Chorzów, PL
. Aquamarine in a vivid, light blue color about 0.80ct surrounded by old European cut diamonds of total mass of
Category

Early 20th Century British Art Deco Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, Platinum

1948 Vintage Ring 7ct Aquamarine Diamonds solid 18K Gold Ø 6.25US / 9.2g
Located in SE
Aquamarine and Diamonds Ring in solid 18K White Gold. Fine emerald /step cut natural Blue
Category

Vintage 1940s Swedish Retro Cluster Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Sunita Nahata Aquamarine 11.80ct. Fancy Ring in 18KWG with Rhodolite Diamond.
By Sunita Nahata
Located in Hong Kong, HK
, 13.20X13.20X9.70mm size, Square Shape. Aquamarine: 1.625 carat, 3.20mm size, Round Shape. Rhodolite: 0.83 carat
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

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

Sunita Nahata Aquamarine 1.60ct. Fancy Ring in 14K White Gold with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
aquamarine ring in 14K white gold with diamonds. Aquamarine: 1.65 carat square checkerboard shape. Diamonds
Category

21st Century and Contemporary Thai Contemporary Engagement Rings

Materials

Aquamarine, Diamond, White Diamond, Gold, 14k Gold, White Gold

18 Karat Rose Gold with Aquamarine Pink Tourmaline and White Diamond Ring
Located in GALLARATE, IT
Aquamarine ( size: 7x9mm), Pink Tourmaline (square cut, size: 4mm) and White Diamonds cts 0.05 VS colour G/H
Category

21st Century and Contemporary Italian Modern Cocktail Rings

Materials

Diamond, White Diamond, Tourmaline, Aquamarine, Gold, 18k Gold, Rose Gold

Aquamarine White Gold Diamond Ring
Located in New York, NY
This bold ring shows off a perfectly square step-cut Aquamarine measured to weigh approximately 35
Category

Vintage 1970s Cocktail Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold, White Gold

Deco Style 18ct White Gold Aquamarine Diamond Ring
Located in Brighton, GB
Beautiful Blue Aquamarine Surrounded by Brilliant White & Square Cut Diamonds Aquamarine approx 1.5cts
Category

21st Century and Contemporary English Art Deco Engagement Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

37.52 CTW Aquamarine Diamond 14 Karat Yellow Gold Heart Drop Earrings
Located in Philadelphia, PA
Designed as square step cut aquamarine surmounts suspending heart cut aquamarines Weighing
Category

Vintage 1980s Drop Earrings

Materials

Aquamarine, Diamond, Gold, 14k Gold, Yellow Gold

Vintage Tiffany Co. 14k Rose Green Gold Sapphire w/ Aquamarine Flower Brooch
By Tiffany Co.
Located in Montclair, NJ
- 3.27mm - 0.18ct (approx.) (1) Natural Genuine Aquamarine - Square Step Cut - Prong Set - Blue Color
Category

20th Century Retro Brooches

Materials

Aquamarine, Sapphire, Gold, 14k Gold, Rose Gold

9.50 Carats Natural Aquamarine and Diamond 14k Solid White Gold Ring
Located in Los Angeles, CA
: Approx. $8,000.00 Total Natural Square Step Cut Aquamarine Weights: Approx. 8.00 Carats Aquamarine
Category

2010s American Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

Vintage 4.12 Carat Aquamarine and 1.95 Carat Diamond Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
with a feature 4.12 carat square faceted cut aquamarine, four claw set in subtle relief to the centre
Category

Vintage 1980s Unknown Cluster Rings

Materials

Aquamarine, Diamond, Platinum

43.02 ct Square Ametrine, 100% Natural Very Rare Single Source Gem from Bolivia
Located in Toronto, Ontario
: 21.30x20.80x11.80 mm Shape: Square Cutting Style Crown: Step Cut Cutting Style Pavilion: Mixed Cut Transparency
Category

2010s Bolivian Loose Gemstones

Materials

Aquamarine

Aquamarine and Diamond Drop Earrings in 18k White Gold, 3.64 Carats
By Sarosi By Timeless Gems
Located in Los Angeles, CA
These eye-catching earrings feature stunning, square emerald-cut aquamarines set in 18k white gold
Category

21st Century and Contemporary North American Artisan Drop Earrings

Materials

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

Vintage 1.77 Carat Aquamarine and Diamond White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
setting is ornamented with a feature 1.77Ct square mixed cut aquamarine, four claw set in relief to the
Category

1990s Unknown Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

Mid-Century 14K White Gold, Aquamarine, Marquise Diamond Halo Cocktail Ring
Located in Philadelphia, PA
prong-set square cushion modified brilliant cut 11.30± ct aquamarine (transparency: transparent, color
Category

20th Century Unknown Modern Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

TrifarI Retro Aquamarine Clip Brooch
By Alfred Philippe for Trifari
Located in New York, NY
Trifari by Alfred Philippe, square cut faux aquamarine retro clip brooch. Gold plated metal
Category

Vintage 1940s American Retro Brooches

Materials

Gilt Metal

11.00ct Aquamarine, Diamond and Ruby 18 Carat White Gold 50 s Cocktail Ring
Located in London, GB
carat white gold. An impressive 11.00ct square cushion cut aquamarine, mounted in a four claw, open back
Category

Vintage 1950s Unknown Cocktail Rings

Materials

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

1950s Bogoff Clear and Aquamarine Encrusted Rhinestone Bracelet
By Henry Bogoff
Located in London, GB
designer. The bracelet is composed of alternating large and smaller square-cut faux aquamarine stones
Category

Vintage 1950s American Link Bracelets

The Alexander I Coin Necklace
Located in London, GB
surrounded by hand sculpted 22k gold vermeil on 925 sterling silver cast with two leaves and an Aquamarine
Category

2010s Turkish Artisan Pendant Necklaces

Materials

Aquamarine, Gold Plate, Sterling Silver

Pendant sun Necklace with Colorful preciouses gems in 18Kt Gold
By Nicofilimon the Jewelry Designer
Located in Athens, GR
necklace handcrafted in 18Kt yellow gold featuring squire cuts gems of yellow quartz, citrine, amethyst
Category

2010s Greek Modern Pendant Necklaces

Materials

Citrine, Quartz, Amethyst, Aquamarine, Chrome Tourmaline, Gold, 18k Gold...

Multicolored Gemstone Necklace
Located in New Orleans, LA
pendant features a vibrant array of 88 gemstones: amethyst, aquamarine, tsavorite garnet, ruby and
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Amethyst, Aquamarine, Ruby, Sapphire, Pink Sapphire, Yellow Sapphire, Ts...

Antique FabergeStyle 3AquamarineCabochons 4GreyDiamonds BezelSet WhiteGold Pin
Located in Chicago, IL
-style elements features bezel settings with three square-cut 10mm sugarloaf aquamarine cabochons with
Category

Antique Early 1900s European Edwardian Brooches

Materials

Diamond, Aquamarine, Black Diamond, White Gold

Statement 7.23ct Semi Precious Cocktail Ring in 18k Yellow Gold with Diamonds
By VR Jewels
Located in New York, NY
. Designed with oval and square cut semi precious aquamarine, citrine and amethyst gemstones with diamond
Category

21st Century and Contemporary American Art Deco Cocktail Rings

Materials

Amethyst, Aquamarine, Citrine, Diamond, Gold, 18k Gold, Yellow Gold

Pennino Pink Gold Vermeil Retro Brooch
By Pennino Jewelry
Located in New York, NY
central motif with square cut faux aquamarines. Wonderful design and condition. Signed Pennino Sterling
Category

Vintage 1940s American Retro Brooches

Materials

Vermeil, Sterling Silver

Art Deco Paste Baguette Brooch
Located in New York, NY
Elegant Art Deco Paste Brooch with pale faux aquamarine square cut stones in an elaborate sterling
Category

Vintage 1930s French Art Deco Brooches

Materials

Sterling Silver

1.20 Carat Square Cut Aquamarine 18k White Gold Ring
Located in Cambridge, NZ
visions of tranquil ocean waters. Expertly cut into a perfect square shape, the gemstone radiates a
Category

21st Century and Contemporary New Zealand Contemporary Cocktail Rings

Materials

Aquamarine, 18k Gold, White Gold

11 Carat Square Cut Aquamarine and Diamond Ring Set in White Gold
Located in Malvern, Victoria
White gold dress ring featuring large square step cut light blue coloured Aquamarine 11.80 ct
Category

2010s Australian Modern Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

1940s Aquamarine Gold Cocktail Ring
Located in New York, NY
Square-cut Aquamarine approximately 20.0 carats set in 18 Karat Gold.
Category

Mid-20th Century Cocktail Rings

Susan Lister Locke 2.75ct Mint Tourmaline with 3.20ct Aquamarines in 18K Gold
By Susan Lister Locke
Located in Nantucket, MA
, said to attract inspiration and compassion, is nestled between 3 Carats of square cut Aquamarine
Category

2010s American Contemporary Three-Stone Rings

Materials

Aquamarine, Tourmaline, 18k Gold, Gold

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Square Cut Aquamarine For Sale on 1stDibs

Find the exact square cut aquamarine you’re shopping for in the variety available on 1stDibs. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect square cut aquamarine may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but 2 Carat and 2.5 Carat carat weights, specifically, are sought with frequency. There have been many well-made iterations of the classic square cut aquamarine over the years, but those made by Doves by Doron Paloma, Petra Class and Valentin Magro are often thought to be among the most beautiful. Today, if you’re looking for a square cut version of this piece and are unable to find the perfect match, our selection also includes cushion cut and emerald cut alternatives. There aren’t many items for men if you’re seeking a square cut aquamarine, as most of the options available are for women and unisex.

How Much is a Square Cut Aquamarine?

On average, a square cut aquamarine at 1stDibs sells for $5,567, while they’re typically $275 on the low end and $108,800 for the highest priced versions of this item.

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 Square Cut Aquamarine
  • 1stDibs ExpertApril 5, 2022
    Emeralds are frequently cut into squares due to their properties. Because they are brittle, the gemstones benefit from stronger rectangular and square shapes. Also, these cuts tend to hide the natural blemishes found in many emeralds. Shop a large selection of emerald gemstone jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    No, a square emerald cut is not the same as an asscher cut. Although they have the same basic shape and are both step cuts that maximize clarity, the asscher cut shows off a sharper angle at the corners. Shop a wide variety of gemstone jewelry on 1stDibs.
  • 1stDibs ExpertNovember 13, 2024
    What a square-cut diamond is called depends on how the jeweler arranged its facets. A princess-cut diamond has a square shape and a brilliant cut that maximizes its sparkle. Another square-shaped cut is the Asscher, which is stepped to show off a diamond's color and clarity. Find a large selection of diamond jewelry on 1stDibs.