Square Antique Diamond Rings

Art Deco Blue Stone Ring

Art Deco Gold And Platinum Sapphire Ring

Antique Colombian Emerald Ring

Square Cut Sapphire Platinum Ring

3 Carat Square Emerald Cut Ring

19th Century Emerald Ring

Category

1920s French Art Deco Square Antique Diamond Rings

Materials

Diamond, Ruby, Platinum

1920 Art Deco Platinum Ring with 3.00 Cts in Diamonds and Rubies

$6,900

1920 Art Deco Platinum Ring with 3.00 Cts in Diamonds and Rubies

Located in Aventura, FL

This spectacular Art Deco ring showcases the era's bold geometric design, crafted in lustrous platinum and featuring 8 gem-quality square-cut rubies totaling 1.60 carats, dramaticall...

Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Edwardian 0.40ct Sapphire and Diamond Cluster Ring, c.1910s

$3,957

Edwardian 0.40ct Sapphire and Diamond Cluster Ring, c.1910s

Located in London, GB

A total of 0.32 carat of old cut diamonds surround the central stone in a square cluster.

Category

1910s British Edwardian Square Antique Diamond Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold, Platinum

Recent Sales

Art Deco .91 Carat Diamond and Emerald Platinum Square Geometric Ring, 1920s

Unavailable

Art Deco .91 Carat Diamond and Emerald Platinum Square Geometric Ring, 1920s

Located in Antwerp, BE

This platinum engagement ring from 1920 oozes Art Deco sophistication through the gorgeous grand old European cut diamond centered in an openwork geometric design.

Category

Early 19th Century Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, White Diamond, Platinum

21st Century 9 Karat Rose Gold and Diamond Square Cesellato Cocktail Ring

Unavailable

21st Century 9 Karat Rose Gold and Diamond Square Cesellato Cocktail Ring

By FANCS V by Simona Elia

Located in Palermo, Italy PA

Understated and elegant, and yet 600-odd years in the making, this rose gold and silver cocktail ring is produced using an ancient Albanian technique that was brought to Palermo in t...

Category

16th Century Italian Contemporary Square Antique Diamond Rings

Materials

Diamond, Gold, 9k Gold, Rose Gold, Silver

Art Deco Diamond Cocktail Ring Square Setting Old Cuts 18 Karat Gold Platinum

Unavailable

Art Deco Diamond Cocktail Ring Square Setting Old Cuts 18 Karat Gold Platinum

Located in Preston, Lancashire

This striking Art Deco diamond ring made in 18 karat yellow gold with platinum setting features a square geometric setting set with 9 old cut diamonds of the highest quality.

Category

1920s Unknown Square Antique Diamond Rings

Materials

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

1.00 Carat Square with Halo Certified Diamond Fashion Ring 14 Karat White Gold

Unavailable

Sold

Art Deco Tiffany & Co. Emerald Diamond Platinum Dinner Alternative Ring

By Tiffany & Co.

Located in Philadelphia, PA

Dinner ring centers a square cut emerald weighing approximately 0.34 carat Bright green in color and semi-transparent with natural inclusions Surrounded by transitional cut diamond...

Category

1920s Art Deco Square Antique Diamond Rings

Materials

Materials

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

Cartier Sapphire Diamond 18k White Gold Lanieres Band Ring Size 5 49

$4,950

$115,000

Faye Kim 22K Gold Diamond Signet Ring, 3.88 Carat, GIA Certified, USA

By Faye Kim

Located in Darien, CT

Faye Kim's 22 Karat Gold Diamond Dome Ring is beautifully matte-finished and offers spectacular, one-of-a-kind sparkle with its mesmerizing 3.88 carat stone and seamless dome setting...

Category

2010s American Contemporary Square Antique Diamond Rings

Materials

Tourmaline, Diamond, Gold, 22k Gold

Art Deco Sapphire Diamond Platinum Filigree Ring

$18,500

Art Deco Sapphire Diamond Platinum Filigree Ring

Located in Carmel-by-the-Sea, CA

Styled after the classic Victorian English carved ring, but made during the art deco era, this beautifully-preserved three stone ring features a 1.36 carat Old European Cut Diamond f...

Category

1930s Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Old European Cut Diamond Sapphire Platinum Shield Ring

$10,000

Art Deco Old European Cut Diamond Sapphire Platinum Shield Ring

Located in New York, NY

This elegant platinum ring from the Art Deco era is centered with a sparkling old European cut diamond that weighs approximately 1.00ct. graded K color with VS1 clarity. The center d...

Category

Early 20th Century Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

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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 rings, vintage 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 rings, vintage 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.