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GIA Certified 4 Carat Square Emerald Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA certified Asscher cut diamond, the epitome of refinement and investment value. Meticulously
Category

2010s Italian Modern Engagement Rings

Materials

Emerald, White Diamond, Diamond, Platinum

Vintage GIA 1.30 Carat Square Cut Diamond Platinum Solitaire Ring
Located in Beverly Hills, CA
One Vintage GIA 1.30 Carat Square Cut Diamond Platinum Solitaire Ring. Featuring one GIA cut
Category

1990s Solitaire Rings

Materials

Diamond, White Diamond, Brown Diamond, Platinum

4.47 Carat '1/4 Cts' Asscher Cut 'Square Emerald Platinum Diamond Eternity Ring
By Sebastian Bernard
Located in Los Angeles, CA
This beautiful Eternity Ring is made of Platinum showcasing 18 perfectly matched 1/4 Ct (VS/E-F
Category

2010s American Wedding Rings

Materials

Diamond, Platinum

14K Yellow Gold Square Lavender Sapphire Vintage Diamond Ring Center-4/5 Carat
Located in San Francisco, CA
This petite organic style rustic ring is impressive in its vintage appeal, featuring a natural
Category

21st Century and Contemporary American More Rings

Materials

Diamond, Sapphire, Yellow Gold

14 Karat Gold Square Lavender Sapphire Rustic Diamond Ring Center, 4/5 Carat
Located in San Francisco, CA
This petite Organic style Rustic ring is impressive in its vintage appeal, featuring a natural
Category

21st Century and Contemporary American More Rings

Materials

Sapphire, Diamond, Yellow Gold

3.22 Carat GIA Diamond Square Halo Ring
Located in METAIRIE, LA
This Round Diamond Solitaire Halo ring features an incredibly white GIA Certified central 3.22
Category

Early 2000s Engagement Rings

Materials

Diamond, 14k Gold, White Gold

NALLY Square Shape Diamond Eternity Band Ring
Located in New York, NY
Elegant 18 square shape diamonds set platinum, with total weight of 4.75 carats Each diamond is
Category

2010s American Contemporary Band Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate G Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke 3.00 carat cushion cut diamond engagement ring with the perfect combination of elegance
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate E Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke ring with one of the best colors and clarity center diamond, 3.00 carat cushion cut
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

1.00 Carat Round White Diamond 18 KT Yellow Gold Men's Bespoke Signet Ring
By Hasbani Diamonds
Located in London, GB
round brilliant cut diamonds which gives the ring square shape. Size UK - T, US - 9 3/4, color H
Category

2010s British Modern Signet Rings

Materials

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

Square Cut Diamond and Gold Engagement Ring
Located in Hong Kong, HK
Square Cut Diamond And Gold Ring: Not just any diamond ring, it is set with 4 Square Cut Diamonds
Category

2010s Hong Kong Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Gold, White Gold

Vintage Inspired Bright Blue Square Sapphire & Diamond 9 Carat Gold Cluster Ring
Located in Hamilton, AU
cut diamonds 0.15 carats. Ring Size O (Australia and UK sizing) or 7 1/4 (US and Canada). The Eloise
Category

21st Century and Contemporary Australian Modern Cluster Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 9k Gold, Yellow Gold

Iridescent 1.58 Carat Sapphire and Square Diamond Halo Ring
Located in METAIRIE, LA
This Sapphire & Diamond Halo Ring features a central Round Cabochon cut 1.58 carat Iridescent Blue
Category

Vintage 1980s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, 14k Gold, White Gold

Exceptional GIA Certified 4 Carat Emerald Cut Diamond Ring VS Clarity
By Antinori Fine Jewels
Located in Rome, IT
EXCEPTIONAL GIA Certified 4 Carat Emerald Cut Diamond Ring VS Clarity H Color Amazing ring with 4
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, 18k Gold

Yellow Gold Emerald & Diamond Crossover Band - 18k Square .91ctw Ring Sz 5 1/4
Located in Greensboro, NC
Carat(s): .55ctw Cut: Square Color: Green Natural Diamonds Carat(s): .36ctw Cut: Round Brilliant Color
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Emerald, Yellow Gold

Diamond Bezel Fashion Ring 14 Karat Gold 1/4 Carat '.25 Ct' Diamond Bubble Ring
By Five Star Jewelry
Located in Austin, TX
round brilliant diamond with an approximate 1/4 carat diamond weight. The diamonds are multiple sized
Category

21st Century and Contemporary Modern Cluster Rings

Materials

Diamond, 14k Gold, White Gold

GIA Certified 4 Carat Colombian Minor Oil Emerald & Diamond Engagement Ring
By Gad & Co.
Located in Miami, FL
GIA Certified 4 Carat Square Octagonal Cut Minor Oil Colombian Emerald and Round Diamond Engagement
Category

21st Century and Contemporary Colombian Modern Cocktail Rings

Materials

Diamond, Emerald, Gold, Yellow Gold

Platinum Square Cushion 2.99 Carat Red Ruby & Tapered Baugette Diamond Ring GIA
Located in San Francisco, CA
This timeless three-stone platinum ring features a one-of-a-kind square cushion 2.99 carat Red Ruby
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Ruby, Platinum

18K White Gold Cluster 2 1/4 Carat Diamond Fashion Ring
Located in New York, NY
band is embellished with a 2 1/4 cttw diamond cluster motif. Natural round-cut, white diamonds run
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, White Diamond, White Gold, 18k Gold

Square Sapphire Scattered Diamond Ring 14k White Gold
Located in beverly hills, CA
Elegant and contemporary, this 14K White Gold Sapphire Diamond Ring features a stunning square
Category

Early 2000s Contemporary Dome Rings

Materials

Diamond, Sapphire, White Gold, 14k Gold

Platinum & Rose Gold 7.05 Carat Diamond Solitaire Square Halo Ring
Located in METAIRIE, LA
Champagne Colored Diamond at 12mm in diameter, securely set in 4 V-Shaped Cornered Prongs. With a 14KT Rose
Category

Vintage 1980s Solitaire Rings

Materials

Diamond, Platinum, Rose Gold

Men's 4 Carat Salmon Tourmaline European 18 Karat Ring
Located in METAIRIE, LA
In 18KT White Gold, this European Men's Tourmaline & Diamond ring features a central Square cut 4
Category

1990s Italian Solitaire Rings

Materials

Diamond, Tourmaline, 18k Gold, White Gold

0.37 Carat Square Cut Blue Sapphire and Round Diamond 18 Karat White Gold Ring
Located in New York, NY
& Grace Ring. The 18k White Gold jewelry boasts Square Cut Prong Setting Genuine Ruby (3 pcs) 0.37 Carat
Category

20th Century Chinese Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

GIA Certified 4 Carat Vivid Red Ruby No Heat Diamond Cocktail Ring
By Antinori Fine Jewels
Located in Rome, IT
, this 4.01-carat gem showcases the essence of unadulterated elegance. Unveiling the Essence: Species
Category

2010s Italian Modern Cocktail Rings

Materials

Ruby, White Diamond, Diamond, Platinum

Contemporary 1.47 Carats Cushion Cut Ruby Diamond Platinum Square Halo Ring
Located in Philadelphia, PA
. Inscribed with carat weight. Circa: 2000's. Ring size: 5 1/4 and sizable. Measures: North to South 6.5 mm
Category

Early 2000s Contemporary Cluster Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Art Deco 1.35 Carats Diamond Platinum Square Form Vintage Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 1.14 carats total - K color with SI2
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Solitaire Platinum Ring, GIA Certified Square Modified Brilliant Cut Diamond
Located in Surfside, FL
GIA certified square modified brilliant cut diamond 4.67 carat ( F color, VS2 clarity) solitaire
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

Art Deco Style 0.43 Carat Square Colombian Emerald 18 Karat Ring
Located in METAIRIE, LA
This Colombian Emerald & Diamond Ring features a central 0.43 carat Square cut Fine Intense Green
Category

Vintage 1950s Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

1.30 Carat GIA Certified Square Brilliant Cut Diamond Platinum Engagement Ring
Located in New York, NY
This amazing platinum engagement ring centers a unique GIA certified modified square brilliant cut
Category

20th Century Engagement Rings

Materials

Diamond, Platinum

.94 Carat Princess Cut Diamond Engagement Ring, 14 Karat White Gold Square Halo
Located in Greensboro, NC
This ring is a size 6 1/2 - 6 3/4, but it can be re-sized up 2 sizes for a $25 fee. Once a ring is
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, 14k Gold, White Gold

10.99 Carat Pyralspite Garnet Diamond Platinum Engagement Ring
Located in Stamford, CT
Garnet and diamond engagement ring. AGL certified 10.99ct brown orange/pink, natural Garnet center
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Garnet, Platinum

Nally Square Shaped Diamond Platinum Eternity Band Ring
Located in New York, NY
carat with total weight of 5.25 carat Diamonds are E/F color and VS clarity Ring size is 5.3/4 Width
Category

2010s American Contemporary Wedding Rings

Materials

Diamond, Platinum

Blue Sapphire and Diamond Square Ring
Located in Boca Raton, FL
18K White Gold and Diamond Square Ring with Multi-Shape Blue Sapphires Sapphires are pear shapes
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

GIA 3.01 Carat Square Emerald / Asscher Cut Diamond and Sapphire Platinum Ring
By Susana Lang
Located in London, GB
piece. GIA certified 3.01 carat H color VS2 clarity very well cut Square Emerald or Asscher cut diamond
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Vintage 1.45 Carat Sapphire and 0.72 Carat Diamond White Gold Full Eternity Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive 1.45 carat sapphire and 0.72 carat diamond, 18 karat white gold eternity ring
Category

Vintage 1980s Unknown Engagement Rings

Materials

Diamond, Sapphire, White Gold

0.32 Carat Diamond Ring Champagner/VS 14k Gold, Flanders Cut Diamonds
Located in Darmstadt, DE
0.32 Carat Diamond Ring Champagner/VS 14k Gold, Flanders Cut Diamonds Bold, Flanders Cut
Category

2010s German Modern Cocktail Rings

Materials

Diamond, Gold, 14k Gold

.50 Carat Ruby Diamond Yellow Gold Dome Ring
Located in Stamford, CT
Ruby and diamond ring. Alternating 4 princess cut diamonds and 5 square cut rubies in at 18k yellow
Category

Late 20th Century Dome Rings

Materials

Diamond, Ruby, Gold, 18k Gold, Yellow Gold

Antique 1.45 Carat Emerald and 1.43 Carat Diamond Platinum Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
Square Faceted Content 1.45 carats Dimensions 6.50mm x 6.13mm x 5.22mm Diamond Quality Feature Diamond
Category

Vintage 1930s Unknown Cocktail Rings

Materials

Diamond, Emerald, Platinum

Yellow Gold Diamond Cluster Cocktail Band - 18k Square Step 1.66ctw Ring
Located in Greensboro, NC
Natural Diamonds Carat(s): 1.66ctw Cut: Square Step Color: F - G Clarity: VS1 - VS2 Total Carats: 1.66ctw
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

1.02ctw VS2 Diamond Square Solitaire Engagement Ring 14k White Gold GIA Sz 7
Located in McLeansville, NC
Gemstone Information: - Natural Diamond - Carats - 1ct Cut - Square Modified Brilliant Color - H
Category

2010s Engagement Rings

Materials

Diamond, White Gold

Goshwara Rock Crystal Square with Diamonds Ring
By Goshwara
Located in New York, NY
Rock Crystal Square Emerald Cut Ring with Diamonds in 18K Yellow Gold, From 'Gossip' Collection
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Rock Crystal, Diamond, Yellow Gold

14k Yellow Gold Natural Sapphire & Diamond Engagement Ring, Square Cut & Accent
Located in Toronto, ON
white diamonds that wrap two-third around the ring’s clean edge in the claw setting. The center square
Category

2010s Canadian Art Deco Engagement Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

Endearing 0.78 Carat Diamond Platinum Five Stone Band Ring
Located in Philadelphia, PA
Set to front by five square step cut diamonds - split and V prongs Weighing in total approximately
Category

2010s Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

Retro 18 Karat Gold 4 Carat Ruby and ​​Diamond Cocktail Ring, circa 1940
Located in Goettingen, DE
Retro 18K gold 4 carat ruby ​​and diamond cocktail ring , circa 1940 Very distinctive cocktail
Category

Vintage 1940s German Retro Cocktail Rings

Materials

Ruby, Diamond, Gold, 18k Gold, Yellow Gold

14K Rose Gold 4 1/3 Carat Fancy Color Rose Cut Diamond Triple Halo Cocktail Ring
Located in New York, NY
with a remarkable 4 1/3 carat total weight of fancy color rose cut diamonds, this triple halo ring is a
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Brown Diamond, Yellow Diamond, White Diamond, Diamond, Rose Gold, 14k Gold

18 Carat White Gold Ring, Square Flower Model in Gold Threads and Diamonds
Located in VERSAILLES, FR
Ravissante bague de fiançailles en or blanc 18 carats ornée au centre d’un diamant de taille
Category

21st Century and Contemporary French Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

White Gold Diamond Square Cluster Ring - 14k Princess .64ctw Engagement
Located in Greensboro, NC
Diamonds Carat(s): .64ctw Cut: Princess Color: I - J Clarity: VS1 - VS2 Total Carats: .64ctw Style
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

1.48 Carat Men's Sapphire Diamond 14 Karat Yellow Gold Ring
By DGI
Located in Los Angeles, CA
This piece is set with 4 Sapphires that weigh 0.45 Carats and 35 Round Cut Diamonds that weigh 1.03
Category

2010s American Contemporary Bridal Rings

Materials

Sapphire, Diamond, Yellow Gold, 14k Gold

Antique Inspired 2.43 Carats Sapphire Diamond Platinum Cluster Ring
Located in Beverly Hills, CA
One Antique Inspired 2.43 Carats Sapphire Diamond Platinum Cluster Ring. Featuring one step cut
Category

2010s Unknown Cluster Rings

Materials

Diamond, Sapphire, Platinum

Square Cut Diamond Eternity Ring in White Gold
Located in Wailea, HI
Square Cut Diamond Eternity Ring in White Gold Twenty Seven Square Cut Diamonds weighing 2.45
Category

Late 20th Century Unknown Wedding Rings

Materials

White Diamond, 14k Gold

White Gold Ruby & Diamond Band - 14k Square .69ctw Stripe Ring
Located in Greensboro, NC
Stone Information Natural Rubies Treatment: Heating Carat(s): .36ctw Cut: Square Color: Pinkish Red
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Yellow Gold Sapphire & Diamond Band - 14k Square .78ctw Chevron V Arrow Ring
Located in Greensboro, NC
Information Natural Sapphires Treatment: Heating Carat(s): .60ctw Cut: Square Color: Blue Natural Diamonds
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold, Yellow Gold

2.56 Carat Emerald and 0.30 Carat Diamond Trendy Ring
Located in Miami, FL
earth mined diamonds weighing 0.30 carat together, averaging brownish rose in color set within pink gold
Category

2010s American Contemporary Three-Stone Rings

Materials

Diamond, Emerald, 14k Gold

18K Gold 0.88ct Alternating Square Step Cut Ruby & Diamond Channel Set Band Ring
Located in Montclair, NJ
- 0.56ctw (exact) (4) Natural Genuine Diamonds - Square Step Cut - Channel Set - F/G Color - VVS2/VS1
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Emerald and 2.62 Carat Diamond Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
Colour Green Cut Square mixed Content 0.68 carats Diamond Quality Feature Diamond Colour N Clarity VS2
Category

Antique Early 1900s Cocktail Rings

Materials

Diamond, Emerald, Platinum

Platinum Emerald & Diamond Vintage Bypass Ring - Square Step Cut 2.33ctw Halo
Located in Greensboro, NC
Information Natural Emerald Treatment: Oiling Carat(s): 1.05ct Cut: Square Step Color: Green Natural
Category

20th Century Cocktail Rings

Materials

Diamond, Emerald, Platinum

Contemporary 1.02 Carats Step Cut Diamond Platinum Channel Band Ring
Located in Philadelphia, PA
Featuring five square step cut diamonds channel set to front. Weighing 1.02 carats total - I to J
Category

Early 2000s Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

Contemporary 1.00+ Carat Emerald and Diamond Statement Ring
Located in Lexington, KY
white diamonds in a beautiful crossover design. There is no doubt that this ring will be seen from
Category

21st Century and Contemporary Contemporary Fashion Rings

Materials

White Diamond, Emerald, 18k Gold, White Gold

Peridot Diamond 3.52 Carat White Gold Ring
By DGI
Located in Los Angeles, CA
Bright & Beautiful! This Peridot and Diamond Ring has a 3.11 Carat Square Cushion Cut Peridot and
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Peridot, Diamond, 14k Gold, White Gold

Vintage Amethyst and Diamond 9 Carat Gold Cluster Ring
Located in Chipping Campden, GB
bright diamonds which surround it. The diamonds total approx 30pts. The ring is modelled in 9ct white
Category

Vintage 1960s British Modern Cluster Rings

Materials

Amethyst, Diamond, Gold

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Diamond Ring Square 4 Carat For Sale on 1stDibs

On 1stDibs, you can find the most appropriate diamond ring square 4 carat for your needs in our varied inventory. Frequently made of Gold, Platinum and 18k Gold, this item was constructed with great care. You can easily find a 239 antique edition and 258 modern creations to choose from as well. Finding the perfect diamond ring square 4 carat 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 .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. A diamond ring square 4 carat from Tiffany & Co., TJD and H & H Jewels — each of whom created a beautiful version of this treasured accessory — is worth considering. A square cut version of this piece has appeal, but there are also emerald cut and round cut versions for sale. Most of our diamond ring square 4 carat for sale are for women, but there are 145 pieces available to browse for men.

How Much is a Diamond Ring Square 4 Carat?

The price for a diamond ring square 4 carat starts at $275 and tops out at $675,000 with these rings, on average, selling for $4,295.

Finding the Right Rings for You

Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.

No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.

Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.

Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. On 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry

The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.

Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings on 1stDibs.