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Art Deco Emerald and Diamond 18 Carat Gold Cluster Ring
Located in Chipping Campden, GB
A stunning bright green square cut emerald sits at the centre of a gorgeous sparkling diamond halo
Category

Vintage 1920s British Art Deco Cluster Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Platinum

Tiffany Co. Platinum True Cut Diamond Engagement Ring .59ct TW FVS1
By Tiffany Co.
Located in New York, NY
featuring a cushion brilliant diamond center weighing 0.50 carats , F color , VS1 clarity set in a 4 prong
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Art Deco 1 Carat Certified Princess Diamond Engagement Ring Platinum Solitaire
Located in Santa Barbara, CA
: 1.01 Cut: Princess Color: F Clarity: SI2 Additional Diamonds 4 = 0.22 carats total Ring Size: 6
Category

Vintage 1920s Art Deco Solitaire Rings

Materials

Diamond, Platinum

"Art Deco" 14k Emerald Diamond Ring
Located in Narberth, PA
diamond. The shoulders of the ring feature small bead-set diamonds and milgrain detailing. Overall, the
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

1940 s C.D. Peacock 0.95 Carat Diamond Platinum Engagement Ring GIA
Located in Philadelphia, PA
Centering a round brilliant cut diamond weighing 0.68 carat - H color with VS1 clarity Flanked by
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, White Diamond, Platinum

1.9ctw Emerald and Diamond Engagement Ring, 14k Yellow Gold, Ring Size 6.75
Located in McLeansville, NC
Stones: diamonds, 4 stones round brilliant cut 3 mm approximately .40 total carats GH color/ SI2-I1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Art Deco Sapphire and Diamond 18 Carat Gold Five-Stone Ring
Located in Chipping Campden, GB
This gorgeous ring holds three bright blue square cut sapphires which total 45pts and either side
Category

Vintage 1920s British Art Deco More Rings

Materials

Diamond, Sapphire, Gold

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

Vintage Sapphire and Diamond 18 Carat Gold Half Eternity Band
Located in Chipping Campden, GB
. The sapphires are square cut and measure 10pts each. Ring Size: K or 5 3/4 Band Width: 2.5mm
Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Sapphire, Gold

Mens Diamond Ruby Ring 14K White Gold Band
By Estate Jewelry
Located in East Brunswick, NJ
14K White Gold and set with genuine Earth mined Diamonds and lab-created Rubies. 4 square highest
Category

20th Century Band Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

1.04 Carat GIA Certified Princess Diamond Gold Engagement Ring
Located in Miami, FL
total weight Ring size: 4 (Sizable) Accompanied by a copy of the GIA Certificate. This item is
Category

Vintage 1980s American Engagement Rings

Vintage Emerald and Diamond 9 Carat Gold Half Eternity Band
Located in Chipping Campden, GB
green stones are diamond points. The ring is modelled in 9carat gold. Ring Size: P or 7 3/4 Band Width
Category

Vintage 1950s British Modern Band Rings

Materials

Diamond, Emerald, Gold

Retro 0.45 Carat Diamond Platinum and 14 Karat Gold Solitaire Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 0.45 carats, I color and VS clarity
Category

Mid-20th Century Unknown Retro Engagement Rings

Materials

Diamond, 14k Gold, Platinum

Art Deco Diamond, 18 Carat Gold and Platinum Three-Stone Panel Ring
Located in Chipping Campden, GB
In classic Art Deco style this three stone diamond ring is made up of squares and panels of
Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Gold, Platinum

1.1 Carat Sapphire Emerald Diamond Platinum Ring Antique Art Deco, Circa 1905
Located in New York, NY
This is a magnificent Antique Art Deco Wedding Engagement Ring with a 1.1 Carat square cushion cut
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, Emerald, Platinum

22-Carat Green Tourmaline Fire Opal Sapphire Diamond 18KY Gold Cocktail Ring
Located in Boca Raton, FL
Fabulous square green tourmaline, fire opal, sapphire, and diamond ring fashioned in 18 karat
Category

Late 20th Century Unknown Contemporary Cocktail Rings

Materials

Diamond, Opal, Sapphire, Tourmaline, 18k Gold, Yellow Gold, Gold

Men s Composite Diamond Ring, 14 Karat White Gold Halo Princess 1.00 Carat
Located in Greensboro, NC
diamonds framed by a square halo of round brilliant cut diamonds. This ring is a size 8 3/4, but it can
Category

21st Century and Contemporary Unknown Wedding Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

1.76 Carat Diamond Mosaic Ring 14 Karat Rose Gold Cocktail Jewelry Estate Fine
Located in Torrance, CA
Stylish diamond cocktail ring crafted in 14 karat rose gold. Round brilliant cut diamonds range
Category

Mid-20th Century Unknown Modern Cocktail Rings

Materials

Diamond, White Diamond, 14k Gold, Rose Gold

Stunning GIA Cert .051 Carat Old European Brilliant Cut Diamond Engagement Ring
Located in New York, NY
stone are sparkling round cut diamond accents and square cut sapphires. The ring is size 6 3/4, and
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Yellow Gold Sapphire and Diamond Ring, 18 Karat Oval Brilliant 1.70 Carat
Located in Greensboro, NC
sapphires and white diamonds which create a luxurious design that will dazzle. This ring is a size 8 3/4
Category

20th Century Unknown Solitaire Rings

Materials

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

SeidenGang 18 Karat Yellow Gold Peridot and Diamond Band Ring
By SeidenGang
Located in Baltimore, MD
Seiden Gang 18K Yellow Gold Peridot & Diamond Band Ring Size 7 3/4 Metal: 18k yellow gold, marked
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Peridot, 18k Gold, Yellow Gold

Vintage 9 Carat Gold Signet Ring
Located in Chipping Campden, GB
diamond. this adds just a hint of sparkle. Ring Size: S 1/2 or 9 1/4 Square Dimensions: 10.5mm x 10.5mm
Category

Vintage 1950s British Modern Signet Rings

Materials

Diamond, 9k Gold

Platinum 2.07ct Teal Genuine Natural Tourmaline and Diamond Ring #J5111
Located in Big Bend, WI
diamond ring featuring an emerald cut blue-green tourmaline weighing 2.07 carats and measuring about 9.6mm
Category

20th Century Art Deco Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

Art Deco Emerald and Diamond 18 Carat Gold Full Eternity Band
Located in Chipping Campden, GB
square cut green emeralds are set between a single round-cut white diamond all around this wonderful ring
Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Emerald, 18k Gold, Gold

Edwardian 1 Carat Old Mine Cut Diamond and Sapphire 18 Karat Filigree Ring
Located in Baltimore, MD
Edwardian 1 Carat Old Mine Cut Diamond & Sapphire 18K Filigree Engagement Ring Metal: 18k white
Category

Antique Early 1900s Edwardian Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Art Deco Sapphire Diamond 18 Carat White Gold Eternity Band
Located in Chipping Campden, GB
32pts. This eternity band is modelled in 18carat white gold. Ring Size: L or 5 3/4 Band Width: 2mm
Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, Gold, White Gold

Art Deco Ruby and Diamond 18 Carat Gold 1/2 Eternity Band
Located in Chipping Campden, GB
This half eternity band holds five rich red square rubies totalling 50pts and diamonds measuring a
Category

Vintage 1910s British Art Deco Band Rings

Materials

Diamond, Ruby, Gold

Vintage 1966 Sapphire and Diamond White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
hallmarks to the interior. Sapphire Quality Color Blue Cut Square Content 0.30 carat Diamond Quality Color
Category

Vintage 1960s Unknown Cocktail Rings

Materials

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

Antique Deco Carre Diamond Eternity Ring Platinum Vintage Fine Jewelry
Located in Torrance, CA
. 29 box Carre cut diamonds are estimated at 0.05 carats each and total an estimated 1.45 carats
Category

Early 20th Century Unknown Art Deco Band Rings

Materials

Diamond, Platinum

1920s Sapphire and Diamond Yellow Gold Cocktail Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.48 carat sapphire and 0.38 carat diamond, 18 karat yellow gold and
Category

Vintage 1920s Unknown Cocktail Rings

Materials

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

Peridot and Diamond Ring
Located in New York, NY
Peridot Ring A ring set with a square cut peridot, accented with 12 round cut diamonds and 4
Category

20th Century Unknown Fashion Rings

Materials

Diamond, Peridot, Ruby, Platinum

Platinum 3.23 carat Cushion Cut Aquamarine Ring
Located in Big Bend, WI
Platinum aquamarine and diamond ring featuring a square cushion cut aquamarine weighing 3.23 carats
Category

Vintage 1940s Unknown Modern Cocktail Rings

Materials

Aquamarine, White Diamond, Platinum

1960s Colombian Emerald Diamond Platinum Ballerina Ring
Located in Miami, FL
This sumptuous cocktail ring/pendant with an eminent GIA certified square emerald-cut genuine
Category

Vintage 1960s Unknown Modern Cocktail Rings

Materials

Diamond, Emerald, Platinum

18 Karat Yellow Gold Ring with Natural Fire Opal 10.18 Carat and Diamonds, Italy
Located in Braintree, GB
Italian 18kt yellow gold ladies ring with natural fire opal of 10.18 carats with 3 diamonds on each
Category

Early 2000s Italian Signet Rings

Materials

Diamond, Opal, 18k Gold, Yellow Gold

ICA 18k White Gold No-Heat 2.18 Carat Thailand Teal Sapphire Diamond Fine Ring
Located in เกาะสมุย, TH
squared diamonds as accent. A perfect engagement ring gift to people who are born in September! The size
Category

21st Century and Contemporary Thai Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Art Deco Sapphire and Diamond 18 Carat White Gold Half Eternity Band
Located in Chipping Campden, GB
25pts and the diamonds are small but still have a wonderful sparkle. Made in London, England. Ring
Category

Vintage 1920s British Art Deco Band Rings

Materials

Diamond, Sapphire, White Gold

Late Edwardian Opal and Diamond 18 Carat Gold Three-Stone Ring
Located in Chipping Campden, GB
This stylish opal ring also holds a diamond either side of the stone. The opal is square cut and is
Category

Vintage 1910s British Art Deco Three-Stone Rings

Materials

Diamond, Opal, 18k Gold, Platinum

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

Flexible Diamond Gold Band Ring
Located in Darnestown, MD
Eighteen karat gold band ring with alternating round and square diamonds. The ten stones weigh a
Category

Vintage 1970s Modern Band Rings

Materials

Diamond, 18k Gold

Art Deco 1.27ct. Cushion Cut Diamond Sapphire Ring
Located in New York, NY
cut diamonds and square cut sapphire accents. The ring is size 6 3/4, and can be resized
Category

Early 20th Century Art Deco Engagement Rings

Materials

Blue Sapphire, Diamond, Platinum

Cabochon Amethyst Diamond Gold Ring
Located in Los Angeles, CA
parenthesis, by pairs of square-cut diamonds totaling approximately 0.25 carat, approximately H color and VS
Category

1990s Contemporary Cluster Rings

Materials

Amethyst, Diamond, 18k Gold

1.26 Carat Blue Sapphire Diamond 14 Karat Yellow Gold Band
By Roshe Jewels
Located in Los Angeles, CA
Charming Sapphire & Diamond Band! This band has 6 Blue Square Cut Sapphires weighing 0.73 Carats
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

Edwardian 18 Carat Gold and Platinum Ruby and Diamond Three-Stone Ring
Located in Chipping Campden, GB
shoulders are set with platinum. Modelled in 18 carat yellow gold. Ring Size: UK M 1/2, US 6 3/4
Category

Vintage 1910s British Edwardian Three-Stone Rings

Materials

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

1972 John Donald Diamond Gold Ring
By John Donald
Located in New York, NY
, features approx.. 1.00 carat diamonds in an open cushion-shape square suspended above the finger, the ring
Category

Vintage 1970s British Cluster Rings

Materials

Diamond, 18k Gold

14 Karat Rock Crystal Diamond Ring
Located in Houston, TX
This ring is 14K yellow gold with a carved square rock crystal accented by round diamonds. The ring
Category

Vintage 1970s Unknown Cocktail Rings

Materials

Diamond, Rock Crystal, 14k Gold

Edwardian Diamond Platinum Geometric Dinner Ring
Located in Philadelphia, PA
round brilliant cut diamond weighing approximately 0.12 carat, I color and SI1 clarity Surrounded by
Category

Antique Early 1900s Unknown Edwardian Cocktail Rings

Materials

Diamond, Platinum

Tiffany Co. 1.20 Carats Diamond Platinum Eternity Band
By Tiffany Co.
Located in Bay Harbor Islands, FL
carat mounted in Platinum. With original Tiffany Co. pouch Ring Size 5 1/4 cannot be sized Metal
Category

Late 20th Century American Bridal Rings

Materials

Diamond, Platinum

1940s Diamond Engagement Ring, GIA Certified
Located in Hicksville, NY
center diamond sits flush in the center held by 4 prongs, and is further embellished with a square
Category

Vintage 1940s Retro Engagement Rings

Materials

Diamond, 14k Gold

7ct Green Tourmaline Diamond Leaf Ring Vintage 14k White Gold Sz 4.75 Jewelry
Located in Torrance, CA
Stylish vintage green tourmaline & diamond leaf ring crafted in 14 karat white gold. Green
Category

Mid-20th Century Unknown Modern Cocktail Rings

Materials

Diamond, White Diamond, Tourmaline, Gold, 14k Gold, White Gold

Art Deco Platinum Old Euro Cut Diamond with Square Halo and Sapphire Baguettes
Located in Addison, TX
European cut 1.23 Ct diamond is surrounded by a intricate carved square halo that is accented by 8
Category

Vintage 1920s Unknown Art Deco Fashion Rings

Materials

Diamond, Sapphire, Platinum

French Art Deco Diamond Antique Ring
Located in Poitiers, FR
Yellow gold and white gold ring, 18 carats, eagle head hallmark. This square shaped antique ring
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

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

Art Deco Three Stone Emerald, Diamond Ring in Platinum
Located in OVIEDO, AS
Three Stone Diamond and Emerald Ring. Mounted in Platinum. Two are better than one! In this sleek
Category

Vintage 1930s Spanish Art Deco Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Edwardian Rose Cut Diamond 18 Carat Gold Band
Located in Chipping Campden, GB
The five rose cut diamonds in this 18 carat gold band are set in graduated square settings. The
Category

Antique Early 1900s British Edwardian Band Rings

Materials

Diamond, 18k Gold

18 Karat Yellow Gold Mobius Band - Squares Holes Set with 18 VS White Diamonds
By Hella Ganor
Located in Herzeliya, IL
Squares Holes Set with 18 Small Diamonds This Mobius Wedding Ring is made in high polish 18k gold with
Category

21st Century and Contemporary Israeli Contemporary Bridal Rings

Materials

Diamond, Gold, 18k Gold

1930s Art Deco Sapphires Diamonds Platinum Ring
Located in Poitiers, FR
Ring in platinum. Square- shaped with slightly curved sides, this art deco ring is adorned with a
Category

Vintage 1930s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Art Deco Diamond and Emerald Platinum Ring
Located in Chipping Campden, GB
. Emerald weight 1.61 carats. Ring Size: M or 6 1/4
Category

Vintage 1920s Unknown Art Deco More Rings

Materials

Diamond, Emerald, Platinum

Amethyst and Diamond Ring in White Gold
Located in Houston, TX
This ring is composed of 14K white gold and features a large amethyst accented by diamonds. The
Category

21st Century and Contemporary Unknown Cocktail Rings

Materials

Amethyst, Diamond, 14k 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.

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.