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Square Antique Diamond Rings

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Art Deco Diamond and Sapphire 18 Carat Gold Ring
Located in Chipping Campden, GB
This ring holds one sapphire measuring 35pts and the diamond total is 14pts. The glossy gold band
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold

Art Deco Colombian Emerald and Diamond Three-Stone Ring
Located in London, GB
bright white transitional cut diamonds. The emerald is a chunky square shape, providing a striking
Category

1920s Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

Art Deco 0.70ct Sapphire and Diamond Cluster Ring, c.1920s
Located in London, GB
A lovely Art Deco sapphire and diamond cluster ring which dates back to the 1920s. The central
Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Georgian Emerald Diamond Opal Ring 14K Gold Antique, c.1820s
By Estate Jewelry
Located in East Brunswick, NJ
Georgian Emerald Diamond Opal Ring 14K Gold Antique, c.1820s This rare and highly collectible
Category

19th Century Square Antique Diamond Rings

Materials

Diamond, Emerald, Opal, 14k Gold, Yellow Gold

Antique 0.32 Carat Emerald and Diamond, 15k Yellow Gold Ring Circa 1925
Located in Jesmond, Newcastle Upon Tyne
blend seamlessly with the plain ring shank. This square cut emerald ring in yellow gold has been
Category

1920s Square Antique Diamond Rings

Materials

Diamond, Emerald, Yellow Gold, Silver

Antique Sapphire and Diamond Cocktail Ring in 18k Yellow Gold
Located in Jesmond, Newcastle Upon Tyne
fine and impressive antique sapphire and diamond cocktail ring has been crafted in 18k yellow gold with
Category

1910s Unknown Square Antique Diamond Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold, Silver

Antique Emerald and Diamond Yellow and White Gold Set Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
collections. This fine and impressive antique emerald and diamond ring has been crafted in 18k yellow gold
Category

1920s French Square Antique Diamond Rings

Materials

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

Certified Antique Emerald and Diamond 18 Carat White Gold Solitaire Ring
Located in Chipping Campden, GB
The Emerald in this ring is a natural, non heat treated Columbian stone and measures 2.2ct. It is
Category

1920s British Square Antique Diamond Rings

Materials

Diamond, Emerald, Gold, White Gold, Platinum

Edwardian 2.10 carat Ceylon no heat sapphire diamond 18k white gold ring
Located in Beverly Hills, CA
This refined Edwardian ring is a remarkable testament to early 20th-century elegance, centered
Category

1910s Edwardian Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, White Gold, Platinum

Victorian 0.46 CTW Emerald Rose Cut Diamond Halo Ring in 14K Yellow Gold
Located in Boston, MA
Aston Estate Jewelry Presents: A distinguished Victorian period ring featuring a 0.40 carat square
Category

1870s Victorian Square Antique Diamond Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Antique Edwardian 1900s 1.50 Carat Emerald and 1.20 Carat Diamonds Ring
Located in New York, NY
Finely crafted with platinum and 18k yellow gold with a Square cut Emerald weighing approximately
Category

Early 1900s Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Art Deco J.E. Caldwell Oscar Heyman Emerald Diamond Platinum Ring
By J.E. Caldwell Co.
Located in Chicago, IL
Circa 1920s J.E. Caldwell Retailed Oscar Heyman Art Deco Platinum Ring, Centrally set with a Step
Category

1920s American Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

Art Deco 1920s Platinum 18K Yellow Gold Emerald Diamond Panel Ring
Located in Staines-Upon-Thames, GB
An Art Deco emerald, diamond, platinum and yellow gold ring, comprising one square cut emerald, and
Category

1920s Art Deco Square Antique Diamond Rings

Materials

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

Ritual Love Ring in 18k Gold with Emerald and Diamonds
By NIBIRU Collection
Located in Miami, FL
8 grams solid gold 18k with central emerald, square cut, full screen of 0.5 point diamonds.
Category

15th Century and Earlier American Square Antique Diamond Rings

Materials

Diamond, Emerald, Gold, 18k Gold

Florence Platinum Ring with 0.72ct Natural Sapphire 0.50ct Natural Diamonds
Located in Greeneville, TN
Indulge in the timeless romance of Florence, a captivating platinum ring that exudes vintage
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Emerald, Green Sapphire, Sapphire, Platinum

Vintage Sapphire and Diamond 18 Karat Yellow and White Gold Ring
By Lischetti
Located in Roma, IT
diamonds, and great workmanship make this a rare and very desirable ring. It would be lovely as an unusual
Category

1770s Italian Modern Square Antique Diamond Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Antique Art Deco Emerald and Diamond Yellow Gold Cocktail Ring, circa 1920
Located in Jesmond, Newcastle Upon Tyne
feature stones, each embellished with a Dutch cut diamond. The elevated, pierced decorated tapering ring
Category

1920s Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Antique Art Deco 14K Green Gold Carre Step Cut Diamond Engagement Ring - GIA
Located in Great Neck, NY
Beautiful Antique Art Deco 14K Green Gold Carre Step Cut Diamond Engagement Ring - GIA. This
Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Gold, 14k Gold

Art Deco Style with 2.62 carat Diamonds and Sapphires Cocktail Ring
Located in MADRID, ES
This ring is truly unique, offering a blend of vintage charm and modern sophistication. The
Category

1920s Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Pink Stone and Diamond 18 Carat Gold and Platinum Panel Ring
Located in Chipping Campden, GB
This gorgeous ring holds gorgeous sparkling diamonds and a pink stone. The stones are set in
Category

1910s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Gold, Platinum

Edwardian 1.20ct Three Stone Diamond Ring, circa 1910s
Located in London, GB
Set in the centre of this Edwardian trilogy engagement ring is a carre cut diamond with a carat
Category

1910s Edwardian Square Antique Diamond Rings

Materials

Diamond, 18k Gold, Platinum

Amara 14K White Gold 0.50 ct Oval Emerald 0.25 ctw Diamond Statement Ring
Located in Greeneville, TN
—vibrant green, eye-clean Accents: 0.25 ctw round brilliant diamonds, G–H color, VS-SI clarity Ring Size
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Emerald, Green Sapphire, White Gold

Egyptian Elixir Ring in 18k Gold with Blue Sapphire and Two Diamonds
By NIBIRU Collection
Located in Miami, FL
The egyptian elixir is a 15 grams of gold18k ring, with a square blue sapphire with two 0.5 point
Category

15th Century and Earlier Square Antique Diamond Rings

Materials

Diamond, Blue Sapphire, Gold, 18k Gold

Art Deco 18 Carat Gold and Platinum Sapphire and Diamond Panel Ring
Located in Chipping Campden, GB
This exquisite Art Deco Panel ring is centrally set with a blue sapphire. The stones are set in
Category

1910s Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold, Platinum

Ottilie Platinum Ring with 4.63ct Fire Opal and 0.52ct Diamonds, Elegant Opal
Located in Greeneville, TN
and elegant statement with this exquisite fire opal and diamond platinum ring! 💍✨
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Opal, Fire Opal, Platinum

Antique 14k TT Gold 1.70ctw Channel Ruby Pave Diamond 5 Band Harem Stack Ring
Located in Montclair, NJ
fine diamonds neatly set across their top with fine milgrain etching along each border. The square step
Category

19th Century Square Antique Diamond Rings

Materials

Diamond, Ruby, Gold, 14k Gold, Rose Gold, White Gold

Art Deco 18K Gold and Platinum Ring with Aquamarine and Diamonds
Located in Chorzów, PL
Antique Art Deco gold ring with aquamarine and diamonds. Made of 18-karat yellow gold and platinum
Category

Early 20th Century British Art Deco Square Antique Diamond Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, Platinum

Victorian 0.30ct Emerald and Diamond Trilogy Ring, c.1880s
Located in London, GB
A beautiful green emerald is flanked by old cut diamonds in this classic Victorian trilogy ring
Category

1880s Unknown Victorian Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Art Deco 0.50ct Sapphire and Diamond Trilogy Ring, c.1920s
Located in London, GB
Dating back to the 1920s, this Art Deco trilogy ring features a square cut central sapphire flanked
Category

1920s European Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Antique 1920s Platinum, Diamond Eternity Ring
Located in Brighton, GB
set diamonds, the ring catches the light beautifully, creating a dazzling display that is both
Category

Early 20th Century European Square Antique Diamond Rings

Materials

Diamond, Platinum

Art Deco Sapphire and Diamond and Platinum Three-Stone Ring
Located in Chipping Campden, GB
is a bright sparkling diamond. The square cut sapphire measures 75pts and the round brilliant cut
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring
Located in Chipping Campden, GB
bright sparkling diamond. The square cut sapphire measures 40pts and the old European cut diamonds
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold

Art Deco 0.80ct Emerald and Diamond Three Stone Ring, c.1920s
Located in London, GB
cut diamonds. The bright green emerald weighs 0.80 carat and is a square stone, The accompanying
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Emerald, Diamond, White Gold, 18k Gold, Platinum

Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring
Located in Chipping Campden, GB
At centre of this three stone ring there is a gorgeous bright blue sapphire and sat either side is
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold

Edwardian 0.65 Carat Emerald and Diamond Three Stone Ring, circa 1910s
Located in London, GB
A gorgeous Carre cut diamond is central to this trilogy ring, flanked by two old cut diamonds. The
Category

1910s Unknown Edwardian Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Art Deco Sapphire and Diamond and 18 Carat Gold Ring
Located in Chipping Campden, GB
At the centre of this ring there is a trio of sapphires and surrounding these are small diampnds
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum, Gold

Antique Victorian 18k Yellow Gold Diamond Ruby Sapphire Three Stone Ring
Located in Great Neck, NY
Beautiful Antique Victorian 18K Yellow Gold Diamond Ruby Sapphire Three Stone Ring. This incredible
Category

18th Century Unknown Victorian Square Antique Diamond Rings

Materials

Diamond, Ruby, Sapphire, Yellow Gold

Victorian Amethyst and Bird Ring of 18k Gold
Located in Lewisburg, PA
This extraordinary Victorian ring (circa 1880) showcases a richly carved amethyst, its surface
Category

Late 19th Century Victorian Square Antique Diamond Rings

Materials

Amethyst, Diamond, 18k Gold

Art Deco Cats Eye Chrysoberyl Diamond Platinum Ring
Located in Beverly Hills, CA
complemented by round and square shape diamonds set around the ring weighing close to 1 carat total. It is hand
Category

1920s American Square Antique Diamond Rings

Materials

Chrysoberyl, Diamond, Platinum

Antique Art Deco 14k White Gold, Sapphire, and Diamond Filigree Cocktail Ring
Located in Philadelphia, PA
square cut blue sapphire gemstone flanked on each sides by round-cut white diamonds in a filigree setting
Category

Early 20th Century Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, White Gold, 14k Gold

Art Deco Platinum Sapphire and Diamond Band
Located in Narberth, PA
A beautiful sapphire and diamond ring from the Art Deco (ca1920s) era! Crafted in platinum, the
Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Zorab Creations Peridot Resplendent Rose Ring
By Zorab Creation
Located in San Diego, CA
Not all exquisite roses are red, and this mesmerizing and enigmatic peridot ring casts an envy
Category

Early 18th Century Art Deco Square Antique Diamond Rings

Materials

White Diamond, Peridot, 18k Gold, Palladium

Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band
Located in Baltimore, MD
arranged in a North-South pattern on silver, with 6 small square set diamonds flanking the gemstones on
Category

19th Century French Belle Époque Square Antique Diamond Rings

Materials

Diamond, Emerald, Ruby, 18k Gold

1.07 Carat Late Art Deco European Diamond Platinum Engagement Ring
Located in Stamford, CT
Art Deco Old European cut round diamond square Platinum engagement ring, with accent diamonds along
Category

Early 20th Century Square Antique Diamond Rings

Materials

Diamond, Platinum

EGL Certified .61 Carat Round Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
Classic 1940's square top diamond engagement ring. EGL certified center stone, is a brilliant round
Category

Early 20th Century Square Antique Diamond Rings

Materials

Diamond, Platinum

Art Deco Sapphire and Diamond Platinum Eternity Band
Located in Chipping Campden, GB
each and the sapphires measure approx 4pts each. 12 sapphires and 12 diamonds. Ring Size: N or 6 3/4
Category

1910s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Art Deco 14K White Gold Natural No Heat Cornflower Blue Sapphire 1.50CTW Ring
Located in Cape May, NJ
Art Deco 14k white gold natural no heat cornflower blue sapphire 1.50ctw ring Era: Art Deco
Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Blue Sapphire, White Gold

Celeste 14K White Gold Ring With 1.00 CT Natural Oval Emerald, Size 7
Located in Greeneville, TN
Celeste is a breathtaking 14K white gold ring featuring a vivid 1.00 CT natural oval emerald
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Emerald, White Gold

1915 Art Deco Hand-Engraved White Gold Diamond Band
Located in Lexington, KY
scintillating single-cut diamonds. A perfect match with your vintage diamond engagement ring or to stack with
Category

1910s Art Deco Square Antique Diamond Rings

Materials

Diamond, White Gold, 18k Gold

Art Deco Tourmaline and Diamond 18 Carat Gold Full Eternity Band
Located in Chipping Campden, GB
the stones perfectly. Tourmaline total 1.2carat and diamond total 65pts. Ring Size: N or 6 3/4 Band
Category

1910s Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Tourmaline, Gold

Isla 14K Yellow Gold Wedding Set with 0.70ct Tanzanite 0.70ctw Diamonds
Located in Greeneville, TN
natural round diamonds across two perfectly contoured bands. This elegant three-ring bridal set is
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Tanzanite, Yellow Gold

Marisol 14K Yellow Gold Wedding Set With 1.25 CT Tanzanite Center
Located in Greeneville, TN
color meets timeless brilliance. Handcrafted in solid 14K yellow gold, this two-ring bridal set
Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Tanzanite, Yellow Gold

19th Century French Golden Ring with Square Crown and Diamonds
Located in Sofia, BG
French golden ring with crown decorated with diamonds. Size 53
Category

Late 19th Century French Square Antique Diamond Rings

Materials

Gold

20th Century French White Gold Ring with Crown of Diamonds in Square Shape
Located in Sofia, BG
White gold ring, adorned with four princess diamonds surrounded and supported by brilliant cut
Category

Early 20th Century French Square Antique Diamond Rings

Materials

Gold

Citrine Diamonid Ring in 14KT Yellow Gold Cocktail Evening Ring
Located in Jupiter, FL
Rare imperial citrine diamond ring, the citrine is AAAA quality with cognac orange hues that are a
Category

Early 19th Century North American Early Victorian Square Antique Diamond Rings

Materials

Citrine, Diamond, Yellow Gold, 14k Gold

Art Deco Emerald and Diamond Ring
Located in London, GB
An Art Deco emerald and diamond ring, the square-cut emerald estimated to weigh 1.7 carats
Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

Art Deco Sapphire and Diamond Cluster Ring
Located in London, GB
A sapphire and diamond cluster ring, the square sapphire weighing approximately 0.65 carat
Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire

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Square Antique Diamond Rings For Sale on 1stDibs

There is a broad range of square antique diamond rings for sale on 1stDibs. These distinct designs — crafted with great care and often made from Gold, 18k Gold and Platinum — can elevate any look. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 20th Century. Art Deco and Edwardian are consistently popular styles when it comes to square antique diamond rings. There have been many well-made iterations of these items over the years, but those made by FANCS V by Simona Elia, NIBIRU Collection and Lischetti are often thought to be among the most beautiful. A selection of square cut, old european cut and emerald cut can be found today on these pages. There aren’t many items for men in our collection of square antique diamond rings, as most of the options available are for women.

How Much are Square Antique Diamond Rings?

On average, square antique diamond rings at 1stDibs sell for $2,675, while they’re typically $242 on the low end and $48,750 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.

Questions About Square Antique Diamond Rings