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Platinum Square Sapphire Eternity Band with Old Master Engraving
Platinum Square Sapphire Eternity Band with Old Master Engraving

Platinum Square Sapphire Eternity Band with Old Master Engraving

By OGI Ltd

Located in New York, NY

Platinum eternity ring with princess-cut sapphire Hand engraved by old master engraver Sapphires

Category

2010s American Contemporary Band Rings

Materials

Sapphire, Blue Sapphire, Platinum

Sapphire Diamond Gold Eternity Band
Sapphire Diamond Gold Eternity Band

Sapphire Diamond Gold Eternity Band

Located in Miami, FL

70 genuine round cut diamonds approx. 2.00ct, G-H color, VS clarity, and 30 genuine square step-cut

Category

Late 20th Century Unknown Band Rings

Materials

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

Vintage Emerald and Diamond 18 Carat White Gold Half Eternity Band
Vintage Emerald and Diamond 18 Carat White Gold Half Eternity Band

Vintage Emerald and Diamond 18 Carat White Gold Half Eternity Band

Located in Chipping Campden, GB

green stones are diamonds which total 35pts. The ring is modelled in 18carat white gold and features

Category

Vintage 1950s British Band Rings

Materials

Diamond, Emerald, Gold, White Gold

Vintage 18ct Yellow Gold, 1980s Emerald & Diamond Half Eternity Ring
Vintage 18ct Yellow Gold, 1980s Emerald & Diamond Half Eternity Ring

Vintage 18ct Yellow Gold, 1980s Emerald & Diamond Half Eternity Ring

Located in Brighton, GB

. Showcasing a beautiful arrangement of alternating stones, the square-cut emeralds and princess-cut diamonds

Category

Late 20th Century European Band Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Art Deco Sapphire and Diamond 18 Carat White Gold Half Eternity Band
Art Deco Sapphire and Diamond 18 Carat White Gold Half Eternity Band

Art Deco Sapphire and Diamond 18 Carat White Gold Half Eternity Band

Located in Chipping Campden, GB

Holding four Sapphires and six Diamonds, this half eternity band is fabulous! The sapphires total

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, White Gold

Diamond Emerald Channel Set 14 Karat Yellow Gold Eternity Band Ring
Diamond Emerald Channel Set 14 Karat Yellow Gold Eternity Band Ring

Diamond Emerald Channel Set 14 Karat Yellow Gold Eternity Band Ring

Located in Boca Raton, FL

Diamond and emerald eternity band ring fashioned in 14 karat yellow gold. The band features 7 round

Category

21st Century and Contemporary Unknown Modern Wedding Rings

Materials

Diamond, Emerald, Yellow Gold

6.80 Carat Natural Pink Sapphires 3.60ct Diamonds Eternity Ring 14kt Revolver
6.80 Carat Natural Pink Sapphires 3.60ct Diamonds Eternity Ring 14kt Revolver

6.80 Carat Natural Pink Sapphires 3.60ct Diamonds Eternity Ring 14kt Revolver

Located in New York, NY

diamonds ring. Sapphires: Clean Clarity & full square emerald cuts. Transparent & Vivid Pink colors

Category

2010s American Band Rings

Materials

Diamond, Pink Sapphire, 14k Gold, White Gold

Vintage 18K White Gold Diamond Eternity Band
Vintage 18K White Gold Diamond Eternity Band

Vintage 18K White Gold Diamond Eternity Band

Located in Venice, CA

This sophisticated eternity band contains 20 1.5mm diamonds set in an alternating pattern of

Category

20th Century American Contemporary Band Rings

Materials

Diamond, White Gold, 18k Gold

Vintage French 1.62 Carat Diamond and White Gold Full Eternity Ring
Vintage French 1.62 Carat Diamond and White Gold Full Eternity Ring

Vintage French 1.62 Carat Diamond and White Gold Full Eternity Ring

Located in Jesmond, Newcastle Upon Tyne

A fine and impressive vintage French 1.62 carat diamond and 18 karat white gold full eternity ring

Category

Vintage 1940s French Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Art Deco Sapphire and Diamond 18 Carat Gold and Platinum Half Eternity Band
Art Deco Sapphire and Diamond 18 Carat Gold and Platinum Half Eternity Band

Art Deco Sapphire and Diamond 18 Carat Gold and Platinum Half Eternity Band

Located in Chipping Campden, GB

four diamonds measuring 2pts each. Ring Size: P or 7 3/4 Band Width: 2mm Weight: 2.56g

Category

Vintage 1910s British Art Deco Band Rings

Materials

Diamond, Sapphire, Gold, Platinum

Art Deco Style Sapphire Diamond 18 Carat Gold and Platinum Half Eternity Band
Art Deco Style Sapphire Diamond 18 Carat Gold and Platinum Half Eternity Band

Art Deco Style Sapphire Diamond 18 Carat Gold and Platinum Half Eternity Band

Located in Chipping Campden, GB

sit five diamonds measuring 4pts each. Fully hallmarked Birmingham 1989. Ring Size: M 1/2 or 6 1/2

Category

Vintage 1980s British Modern Band Rings

Materials

Diamond, Sapphire, Gold, Platinum

Vintage Ruby and Diamond Art Deco 18 Carat White Gold Eternity Ring
Vintage Ruby and Diamond Art Deco 18 Carat White Gold Eternity Ring

Vintage Ruby and Diamond Art Deco 18 Carat White Gold Eternity Ring

Located in Chipping Campden, GB

This full eternity ring is absolutely stunning! The ring boasts a total of 1.10ct of round cut

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Ruby, White Gold

Eternity Ring Band in 18kt Yellow Gold with 1.28 Ctw in Diamonds and Emeralds
Eternity Ring Band in 18kt Yellow Gold with 1.28 Ctw in Diamonds and Emeralds

Eternity Ring Band in 18kt Yellow Gold with 1.28 Ctw in Diamonds and Emeralds

Located in Miami, FL

Eternity ring with natural emeralds and diamonds A modern full eternity band, carefully crafted in

Category

20th Century American Contemporary Band Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold

Platinum and Fine Diamond Eternity Band
Platinum and Fine Diamond Eternity Band

Platinum and Fine Diamond Eternity Band

Located in Aspen, CO

Platinum band with 27 fine white fancy cut diamonds. The square cut diamonds are all well matched

Category

21st Century and Contemporary American Modern Bridal Rings

Materials

Diamond, Platinum

Cartier Paris 1930 Art Deco Half Eternity Ring Platinum With Diamonds And Rubies
Cartier Paris 1930 Art Deco Half Eternity Ring Platinum With Diamonds And Rubies

Cartier Paris 1930 Art Deco Half Eternity Ring Platinum With Diamonds And Rubies

By Cartier

Located in Miami, FL

Half eternity ring designed by Cartier. Very nice half-eternity ring, created during the art deco

Category

Vintage 1930s French Art Deco Band Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Vintage Diamond and Platinum Full Eternity Band
Vintage Diamond and Platinum Full Eternity Band

Vintage Diamond and Platinum Full Eternity Band

Located in Chipping Campden, GB

The gorgeous square cut diamonds in this eternity band are set flush in the platinum and give a

Category

Vintage 1960s British Modern Band Rings

Materials

Diamond, Platinum

Vintage Estate Platinum Emerald & Diamond Eternity Band
Vintage Estate Platinum Emerald & Diamond Eternity Band

Vintage Estate Platinum Emerald & Diamond Eternity Band

Located in Great Neck, NY

Beautiful Vintage eternity band in platinum with alternating square-cut emeralds and round diamonds

Category

Vintage 1950s Unknown Retro Wedding Rings

Materials

Diamond, Emerald, Platinum

14K White Gold Ladies Diamond Eternity Band
14K White Gold Ladies Diamond Eternity Band

14K White Gold Ladies Diamond Eternity Band

Located in Houston, TX

One lady's custom made polished 14K white gold across, diamond eternity band with a soft-square

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, 14k Gold, White Gold

18K Yellow Gold Todd Reed Signed Natural Color Diamond Eternity Band
18K Yellow Gold Todd Reed Signed Natural Color Diamond Eternity Band

18K Yellow Gold Todd Reed Signed Natural Color Diamond Eternity Band

By Todd Reed

Located in Westport, CT

, pinkish, greenish, ect.) and 15 smaller rough square shaped natural colored diamonds. This unique ring is

Category

21st Century and Contemporary Band Rings

Materials

Diamond, Yellow Gold

Vintage Estate Platinum Emerald and Diamond Eternity Band
Vintage Estate Platinum Emerald and Diamond Eternity Band

Vintage Estate Platinum Emerald and Diamond Eternity Band

Located in Great Neck, NY

Beautiful Vintage eternity band in platinum with alternating square-cut emeralds and round diamonds

Category

Vintage 1940s Retro Band Rings

Materials

Diamond, Emerald, Platinum

Art Deco Emerald and Diamond Platinum Eternity Band
Art Deco Emerald and Diamond Platinum Eternity Band

Art Deco Emerald and Diamond Platinum Eternity Band

Located in Chipping Campden, GB

This gorgeous emerald and diamond eternity is a real stunner. The round cut diamonds and square cut

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Emerald, Platinum

Graff Diamond Eternity Band 8.41 Carat in Platinum
Graff Diamond Eternity Band 8.41 Carat in Platinum

Graff Diamond Eternity Band 8.41 Carat in Platinum

By Graff

Located in New York, NY

diamond ring mounted with square emerald cut diamonds: asscher cuts. Finger Size: 6.5 Ring Width: 5.5mm

Category

20th Century British Modern Band Rings

Materials

Diamond, Platinum

Art Deco Ruby and Diamond Platinum Eternity Band
Art Deco Ruby and Diamond Platinum Eternity Band

Art Deco Ruby and Diamond Platinum Eternity Band

Located in Chipping Campden, GB

In between every round cut diamond is a lovely square cut ruby. The sparkle of this eternity band

Category

Vintage 1920s British Art Deco Wedding Rings

Materials

Diamond, Ruby, Platinum

Antique Art Deco Platinum Ruby and Diamond Eternity Band
Antique Art Deco Platinum Ruby and Diamond Eternity Band

Antique Art Deco Platinum Ruby and Diamond Eternity Band

Located in Great Neck, NY

Beautiful art deco eternity band in platinum with alternating square-cut rubies and round diamonds

Category

Vintage 1920s Art Deco Band Rings

Materials

Diamond, Ruby, Platinum

Art Deco Diamond and Sapphire Platinum Full Eternity Band
Art Deco Diamond and Sapphire Platinum Full Eternity Band

Art Deco Diamond and Sapphire Platinum Full Eternity Band

Located in Chipping Campden, GB

This gorgeous sapphire and diamond eternity is a real stunner. The round cut diamonds and square

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Diamond and Sapphire Platinum Full Eternity Band
Art Deco Diamond and Sapphire Platinum Full Eternity Band

Art Deco Diamond and Sapphire Platinum Full Eternity Band

Located in Chipping Campden, GB

This gorgeous sapphire and diamond eternity is a real stunner. The round cut diamonds and square

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, Platinum

Vintage Emerald and Diamond Platinum 1/2 Eternity Band
Vintage Emerald and Diamond Platinum 1/2 Eternity Band

Vintage Emerald and Diamond Platinum 1/2 Eternity Band

Located in Chipping Campden, GB

The square cut emeralds in this ring are a gorgeous pale yet bright green and the largest stone

Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Emerald, Platinum

Art Deco Ruby and Diamond Platinum Full Eternity Band
Art Deco Ruby and Diamond Platinum Full Eternity Band

Art Deco Ruby and Diamond Platinum Full Eternity Band

Located in Chipping Campden, GB

The 2pt rubies in this ring are square cut and are set in threes. The diamonds measure 3pts each

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Ruby, Platinum

Vintage Emerald and Diamond 18 Carat Gold Eternity Band
Vintage Emerald and Diamond 18 Carat Gold Eternity Band

Vintage Emerald and Diamond 18 Carat Gold Eternity Band

Located in Chipping Campden, GB

The gorgeous bright green square cut emeralds in this ring measure 15pts each and sit in clusters

Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Emerald, 18k Gold

1940s 5.22 Carat Sapphire and Platinum Full Eternity Ring
1940s 5.22 Carat Sapphire and Platinum Full Eternity Ring

1940s 5.22 Carat Sapphire and Platinum Full Eternity Ring

Located in Jesmond, Newcastle Upon Tyne

A stunning vintage 5.22 carat blue sapphire and platinum full eternity ring; part of our diverse

Category

Vintage 1940s Unknown Wedding Rings

Materials

Sapphire, Blue Sapphire, Platinum

Tiffany & Co. Late Art Deco Diamond Ruby Platinum Eternity Band
Tiffany & Co. Late Art Deco Diamond Ruby Platinum Eternity Band

Tiffany & Co. Late Art Deco Diamond Ruby Platinum Eternity Band

By Tiffany & Co.

Located in Narberth, PA

Round Cut diamonds and four calibrated Square Cut rubies, all held within a channel setting. The

Category

Vintage 1930s Art Deco Band Rings

Materials

Diamond, Ruby, Platinum

18ct White Gold Diamond and Sapphire Set Half Eternity Band.
18ct White Gold Diamond and Sapphire Set Half Eternity Band.

18ct White Gold Diamond and Sapphire Set Half Eternity Band.

Located in London, GB

This diamond half-eternity band is set with 3 round brilliant cut diamonds, and 4 squares

Category

2010s Band Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Vintage Ruby and Diamond 18 Carat Gold Half Eternity Band
Vintage Ruby and Diamond 18 Carat Gold Half Eternity Band

Vintage Ruby and Diamond 18 Carat Gold Half Eternity Band

Located in Chipping Campden, GB

measures 2pts and the rubies 10pts. The rubies are French cut and lovely square settings and the diamonds

Category

Vintage 1950s British Art Deco Band Rings

Materials

Diamond, Ruby, 18k Gold

Vintage Ruby and Diamond 18 Carat White Gold Eternity Band
Vintage Ruby and Diamond 18 Carat White Gold Eternity Band

Vintage Ruby and Diamond 18 Carat White Gold Eternity Band

Located in Chipping Campden, GB

This gorgeous eternity band holds a 25 pt square cut ruby in-between every pair of vertical 3pt

Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Ruby, White Gold

Vintage Sapphire and Diamond 18 Carat Gold Half Eternity Band
Vintage Sapphire and Diamond 18 Carat Gold Half Eternity Band

Vintage Sapphire and Diamond 18 Carat Gold Half Eternity Band

Located in Chipping Campden, GB

sapphires are square cut and measure 10pts each. Ring Size: N or 6 3/4 Band Width: 3mm Weight: 1.7g

Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Sapphire, Gold

Vintage Emerald and Diamond 18 Carat Gold Half Eternity Band
Vintage Emerald and Diamond 18 Carat Gold Half Eternity Band

Vintage Emerald and Diamond 18 Carat Gold Half Eternity Band

Located in Chipping Campden, GB

The square cut emeralds in this ring are beautiful and bright and measure 10pts each. Either side

Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Emerald, Gold

Art Deco Sapphire and Diamond 18 Carat White Gold Eternity Band
Art Deco Sapphire and Diamond 18 Carat White Gold Eternity Band

Art Deco Sapphire and Diamond 18 Carat White Gold Eternity Band

Located in Chipping Campden, GB

measure 30pts each and the diamonds measure 5pts each. The diamonds are round cut and set in square

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, White Gold

Art Deco Ruby and Diamond 18 Carat White Gold Eternity Band
Art Deco Ruby and Diamond 18 Carat White Gold Eternity Band

Art Deco Ruby and Diamond 18 Carat White Gold Eternity Band

Located in Chipping Campden, GB

stylish look. The diamonds measure 2pts each and the square cut rubies measure 10pts each. Ring Size: L

Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Ruby, White Gold

Vintage Ruby and Diamond double love heart ring, 14k yellow gold
Vintage Ruby and Diamond double love heart ring, 14k yellow gold

Vintage Ruby and Diamond double love heart ring, 14k yellow gold

Located in NEWARK, GB

How sweet is this vintage Ruby and Diamond double love heart ring?! The ring has a half eternity

Category

Late 20th Century European Modern Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Antique Art Deco Platinum Old Mine Diamond and Emerald Eternity Wedding Band
Antique Art Deco Platinum Old Mine Diamond and Emerald Eternity Wedding Band

Antique Art Deco Platinum Old Mine Diamond and Emerald Eternity Wedding Band

Located in Great Neck, NY

features chunky old mine cut diamonds set in an alternating pattern between natural square cut emeralds

Category

Vintage 1930s Art Deco Wedding Rings

Materials

Diamond, Emerald, Platinum

Fantastic Vintage 18K Yellow Gold Emerald and Diamond Eternity Band Wedding Band
Fantastic Vintage 18K Yellow Gold Emerald and Diamond Eternity Band Wedding Band

Fantastic Vintage 18K Yellow Gold Emerald and Diamond Eternity Band Wedding Band

Located in San Francisco, CA

I just love this Fantastic Vintage Emerald and Diamond Eternity Band Wedding Band. Such a unique

Category

Early 20th Century North American Art Deco Wedding Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Art Deco Sapphire Platinum Eternity Band
Art Deco Sapphire Platinum Eternity Band

Art Deco Sapphire Platinum Eternity Band

Located in South Pasadena, CA

Continuously set with square-cut sapphires, mounted in platinum. Great to stack with other diamond

Category

Vintage 1930s Art Deco Band Rings

Materials

Sapphire, Platinum

Tiffany & Co. 3.36 Carat Total Weight Platinum Eternity Band Size 6
Tiffany & Co. 3.36 Carat Total Weight Platinum Eternity Band Size 6

Tiffany & Co. 3.36 Carat Total Weight Platinum Eternity Band Size 6

By Tiffany & Co.

Located in Litchfield, CT

Co. eternity band is set with 3.36 carats of sublime emerald-cut diamonds. These stones are

Category

1990s American Wedding Rings

Materials

Diamond, Platinum

0.57 Carat Diamond Wedding Band Ring in 14 Karat White Gold
0.57 Carat Diamond Wedding Band Ring in 14 Karat White Gold

0.57 Carat Diamond Wedding Band Ring in 14 Karat White Gold

Located in Chicago, IL

an engagement ring of your selection. A total of 0.57 carat of round brilliant cut diamonds are

Category

2010s American Contemporary Wedding Rings

Materials

Diamond, White Gold

South Sea Pearl, Emerald with Diamond Accents 18K Yellow Gold Ring
South Sea Pearl, Emerald with Diamond Accents 18K Yellow Gold Ring

South Sea Pearl, Emerald with Diamond Accents 18K Yellow Gold Ring

Located in New York, NY

& Grace ring. The 18k Yellow Gold jewelry boasts 12-15 Round (1pcs) 20.03 Carat, 2.0 mm Square-cut Emerald

Category

20th Century Chinese Art Deco Cocktail Rings

Materials

Diamond, Emerald, South Sea Pearl, 18k Gold, Yellow Gold

Classic Oval Cab Ethiopian Opal, Blue Sapphire and Diamond 14K Yellow Gold Ring
Classic Oval Cab Ethiopian Opal, Blue Sapphire and Diamond 14K Yellow Gold Ring

Classic Oval Cab Ethiopian Opal, Blue Sapphire and Diamond 14K Yellow Gold Ring

Located in New York, NY

) 0.85 Carat, Square cut Blue Sapphire (2 pcs) 0.28 carat, along with Natural Round cut white Diamond (30

Category

20th Century Chinese Art Deco Engagement Rings

Materials

Diamond, Opal, Blue Sapphire, 14k Gold, Yellow Gold

Tiffany & Co. Ladies 18K Rose Gold Frank Gehry Micro Torque Diamond Wedding Band
Tiffany & Co. Ladies 18K Rose Gold Frank Gehry Micro Torque Diamond Wedding Band

Tiffany & Co. Ladies 18K Rose Gold Frank Gehry Micro Torque Diamond Wedding Band

By Tiffany & Co.

Located in Houston, TX

: 2.21 grams Ladies 18K rose gold diamond wedding eternity band with a soft-square shank. Engraved with

Category

21st Century and Contemporary Unknown Wedding Rings

Materials

Diamond, Rose Gold

Diamond Full Eternity Ring
Diamond Full Eternity Ring

Diamond Full Eternity Ring

Located in London, GB

lovely and sparkling full eternity ring. This ring features a row of lively square-cut diamonds channel

Category

2010s British Modern Wedding Rings

Tiffany & Co. Yellow Gold and Diamond Eternity Band
Tiffany & Co. Yellow Gold and Diamond Eternity Band

Tiffany & Co. Yellow Gold and Diamond Eternity Band

By Tiffany & Co.

Located in New York, NY

Authentic Tiffany & Co. Eternity Band crafted in 18 karat yellow gold and 31 channel set carré cut

Category

1990s Band Rings

Materials

Diamond, Yellow Gold

Square-Cut Diamond platinum Eternity Band ring
Square-Cut Diamond platinum Eternity Band ring

Square-Cut Diamond platinum Eternity Band ring

Located in Vail, CO

Diamond eternity band ring, showcasing square-cut diamonds channel-set in platinum. Twenty-three

Category

21st Century and Contemporary American Wedding Rings

Materials

Diamond, White Diamond, Platinum

Square Cut Diamond Platinum  Eternity Band Ring

Square Cut Diamond Platinum Eternity Band Ring

Located in Vail, CO

Diamond eternity band, channel-set with square-cut diamonds weighing 2.08 total carats, in platinum

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, White Diamond, Platinum

Square Emerald Cut Diamond Platinum Eternity Band Ring

Square Emerald Cut Diamond Platinum Eternity Band Ring

Located in Vail, CO

Diamond eternity band ring, set with square emerald-cut diamonds weighing 4.45 total carats (G

Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Square-Set Diamond Half Eternity Ring
Art Deco Square-Set Diamond Half Eternity Ring

Art Deco Square-Set Diamond Half Eternity Ring

Located in Sale, Cheshire

of graduated brilliant cut diamonds. The stones rest in individual square platinum mounts, decorated

Category

Vintage 1930s English Art Deco Band Rings

Materials

White Diamond, 18k Gold, Platinum

Natural Square Cut Emerald and Round White Diamond Vintage Platinum Band Ring
Natural Square Cut Emerald and Round White Diamond Vintage Platinum Band Ring

Natural Square Cut Emerald and Round White Diamond Vintage Platinum Band Ring

Located in Hamilton, AU

diamonds and gorgeous square cut green emeralds. We have named this vintage splendour The Antonella Ring

Category

20th Century Unknown Modern Band Rings

Materials

Diamond, Emerald, White Diamond, Platinum

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Square Cut Diamond Eternity Ring For Sale on 1stDibs

You are likely to find exactly the square cut diamond eternity ring you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. Our collection of these items for sale includes 71 vintage editions and 29 modern creations to choose from as well. If you’re looking for a square cut diamond eternity ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. For this particular piece, 1.5 Carat and 2 Carat are consistently popular carat weights. There have been many well-made iterations of the classic square cut diamond eternity ring over the years, but those made by Tiffany & Co., Betteridge and Dover Jewelry are often thought to be among the most beautiful. See these pages for a square cut iteration of this accessory, while there are also asscher cut cut and emerald cut cut versions available here, too. If you’re browsing our inventory for a square cut diamond eternity ring, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a Square Cut Diamond Eternity Ring?

On average, a square cut diamond eternity ring at 1stDibs sells for $3,600, while they’re typically $367 on the low end and $75,000 for the highest priced versions of this item.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And 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

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

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.