Skip to main content

Square Antique Diamond Rings

to
2
62
48
86
86
43
16
15
11
7
3
3
3
3
2
1
1
1
1
1
1
2
2
1
1
1
Art Deco Diamond and Sapphire 18 Carat Gold Ring
Art Deco Diamond and Sapphire 18 Carat Gold Ring

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 is modelled in 18ct gold and the stones are set in platinum. Ring Size: N or 6 3/4 ...

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold

Art Deco 0.70ct Sapphire and Diamond Cluster Ring, c.1920s
Art Deco 0.70ct Sapphire and Diamond Cluster Ring, c.1920s

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 sapphire is a carre cut and weighs 0.70 carat. It has been rub over set and has a clust...

Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Georgian Foil Backed Diamond 18K Gold Silver Colette Fleur-De-Lis Antique Ring
Georgian Foil Backed Diamond 18K Gold Silver Colette Fleur-De-Lis Antique Ring

Georgian Foil Backed Diamond 18K Gold Silver Colette Fleur-De-Lis Antique Ring

Located in Philadelphia, PA

Centering an antique rectangular step cut diamond diamond weighing approximately 1.25 carats Light brown color and quality consistent with age - set in a colette style bezel Silver-t...

Category

1830s Square Antique Diamond Rings

Materials

Diamond, Silver

Georgian Emerald Diamond Opal Ring 14K Gold Antique, c.1820s
Georgian Emerald Diamond Opal Ring 14K Gold Antique, c.1820s

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 antique ring is finely crafted in solid 14K Yellow gold (carefully tested and guarantee...

Category

19th Century Square Antique Diamond Rings

Materials

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

Antique 18ct Yellow Gold & Platinum, Edwardian era Emerald and Diamond Ring
Antique 18ct Yellow Gold & Platinum, Edwardian era Emerald and Diamond Ring

Antique 18ct Yellow Gold & Platinum, Edwardian era Emerald and Diamond Ring

Located in Brighton, GB

This captivating gemstone is elegantly framed by natural, sparkling diamonds set in platinum. This ring not only reflects the artistry of its era but also serves as a unique statem...

Category

Early 20th Century Edwardian Square Antique Diamond Rings

Materials

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

Antique Sapphire and Diamond Cocktail Ring in 18k Yellow Gold
Antique Sapphire and Diamond Cocktail Ring in 18k Yellow Gold

Antique Sapphire and Diamond Cocktail Ring in 18k Yellow Gold

Located in Jesmond, Newcastle Upon Tyne

Sapphire Quality Color Blue Cut Square step Content 0.20 carat Dimensions 3.65mm x 3.60mm x 1.95mm Diamond Quality Color (average grades) H Clarity (average grades) P1 Cut Dutch Con...

Category

1910s Unknown Square Antique Diamond Rings

Materials

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

Tiffany, Platinum 4.25ct Colombia Minor Emerald 5.15ct Diamond Ring, GIA, AGL
Tiffany, Platinum 4.25ct Colombia Minor Emerald 5.15ct Diamond Ring, GIA, AGL

Tiffany, Platinum 4.25ct Colombia Minor Emerald 5.15ct Diamond Ring, GIA, AGL

By Tiffany & Co.

Located in New York, NY

This refined Tiffany & Co. toi-et-moi ring exemplifies early 20th-century elegance, pairing a Colombian step-cut emerald with a square step-cut diamond.

Category

1920s Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

Antique 18ct Yellow Gold and Platinum, Edwardian Sapphire and Diamond Ring
Antique 18ct Yellow Gold and Platinum, Edwardian Sapphire and Diamond Ring

Antique 18ct Yellow Gold and Platinum, Edwardian Sapphire and Diamond Ring

Located in Brighton, GB

Antique Sapphire and Diamond Ring 18ct Gold Stamped Circa 1910 This exquisite Edwardian ring showcases a stunning rectangular design that elegantly spans across the finger. Set i...

Category

Early 20th Century Art Deco Square Antique Diamond Rings

Materials

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

Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring
Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring

Antique Platinum 18K Gold Gia Royal Blue Kashmir Sapphire Diamond Cocktail Ring

Located in Houston, TX

Gender: Ladies Metal Type: 18K Yellow Gold & 900 Platinum Ring Size: 5 Width: 1.70 mm Weight: 4.86 grams Ladies 18K yellow gold and 900 platinum antique, diamond and no heat...

Category

Early 20th Century Square Antique Diamond Rings

Materials

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

Certified Antique Emerald and Diamond 18 Carat White Gold Solitaire Ring
Certified Antique Emerald and Diamond 18 Carat White Gold Solitaire Ring

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 the most stunning green colour. Either side sits a trio of diamonds, the diamond tot...

Category

1920s British Square Antique Diamond Rings

Materials

Diamond, Emerald, Gold, White Gold, Platinum

Antique 18ct Gold & Platinum, 1920s Original Art Deco Sapphire and Diamond Ring
Antique 18ct Gold & Platinum, 1920s Original Art Deco Sapphire and Diamond Ring

Antique 18ct Gold & Platinum, 1920s Original Art Deco Sapphire and Diamond Ring

Located in Brighton, GB

Featuring a subtle octagonal shape, the ring is adorned with three exquisite square-cut light blue sapphires positioned down the centre, radiating a serene beauty.

Category

Early 20th Century English Art Deco Square Antique Diamond Rings

Materials

Sapphire, Diamond, Platinum, 18k Gold, Gold

Antique Art Deco Emerald and Diamond Yellow Gold Cocktail Ring, circa 1920
Antique Art Deco Emerald and Diamond Yellow Gold Cocktail Ring, circa 1920

Antique Art Deco Emerald and Diamond Yellow Gold Cocktail Ring, circa 1920

Located in Jesmond, Newcastle Upon Tyne

Emerald Quality Color Green Cut Square Faceted Content 0.55 carat Diamond Quality Feature Diamond One Color G Clarity VS2 Cut Old European Content 0.20 carat Dimensions 3.33mm x 3.2...

Category

1920s Unknown Art Deco Square Antique Diamond Rings

Materials

Emerald, Diamond, 18k Gold, Yellow Gold

Ritual Love Ring in 18k Gold with Emerald and Diamonds
Ritual Love Ring in 18k Gold with Emerald and Diamonds

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

Antique Emerald and Diamond Yellow and White Gold Set Cocktail Ring
Antique Emerald and Diamond Yellow and White Gold Set Cocktail Ring

Antique Emerald and Diamond Yellow and White Gold Set Cocktail Ring

Located in Jesmond, Newcastle Upon Tyne

Emerald Quality Color Natural Cut Square step Content 0.21 carat Dimensions 3.37mm x 3.45mm x 2.36mm Diamond Quality Color (average grades) H Clarity (average grades) SI1 Cut Old Eu...

Category

1920s French Square Antique Diamond Rings

Materials

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

Antique Edwardian 1900s 1.50 Carat Emerald and 1.20 Carat Diamonds Ring
Antique Edwardian 1900s 1.50 Carat Emerald and 1.20 Carat Diamonds Ring

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 1.50 carats and accenting Old European cut Diamonds weighing a total of approximatel...

Category

Early 1900s Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Art Deco 1920s Platinum & 18K Yellow Gold Emerald & Diamond Panel Ring
Art Deco 1920s Platinum & 18K Yellow Gold Emerald & Diamond Panel Ring

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 old round cut diamonds, set in platinum, to an 18 karat yellow gold band.

Category

1920s Art Deco Square Antique Diamond Rings

Materials

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

Art Deco Pink Stone and Diamond 18 Carat Gold and Platinum Panel Ring
Art Deco Pink Stone and Diamond 18 Carat Gold and Platinum Panel Ring

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 platinum and the rest of the ring is modelled in 18carat gold. Pnk stone measures 35pts,...

Category

1910s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Gold, Platinum

Edwardian 1.20ct Three Stone Diamond Ring, circa 1910s
Edwardian 1.20ct Three Stone Diamond Ring, circa 1910s

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 weight of 0.70 carat. It has been graded as a G in colour and VS2 in clarity. Flanked ...

Category

1910s Edwardian Square Antique Diamond Rings

Materials

Diamond, 18k Gold, Platinum

Egyptian Elixir Ring in 18k Gold with Blue Sapphire and Two Diamonds
Egyptian Elixir Ring in 18k Gold with Blue Sapphire and Two Diamonds

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 diamonds, with texturized gold design and a egyptian drops texture rounding the cent...

Category

15th Century and Earlier Square Antique Diamond Rings

Materials

Diamond, Blue Sapphire, Gold, 18k Gold

Antique Art Deco Australian Olive Green Parti Sapphire Diamond Ring in 18ct Gold
Antique Art Deco Australian Olive Green Parti Sapphire Diamond Ring in 18ct Gold

Antique Art Deco Australian Olive Green Parti Sapphire Diamond Ring in 18ct Gold

Located in SYDNEY, AU

This exquisite antique ring showcases a natural Australian parti sapphire of 1.18ct, cut in a square baguette (carré) shape, displaying a captivating blend of olive green and yellow ...

Category

Early 19th Century Australian Art Deco Square Antique Diamond Rings

Materials

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

Antique 0.65 Carat Diamond and Ruby Three-Stone Ring
Antique 0.65 Carat Diamond and Ruby Three-Stone Ring

Antique 0.65 Carat Diamond and Ruby Three-Stone Ring

Located in London, GB

Here we have a charming three-stone ring. At the centre of the face we find a bright white round faceted old European cut diamond which is flanked on either side by a vibrant pinky r...

Category

1910s Square Antique Diamond Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Art Deco 18 Carat Gold and Platinum Sapphire and Diamond Panel Ring
Art Deco 18 Carat Gold and Platinum Sapphire and Diamond Panel Ring

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 platinum to enhance their colour. Band modelled in 18 carat yellow gold. sapphire 25pt...

Category

1910s Unknown Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold, Platinum

Amara 14K White Gold 0.50 ct Oval Emerald & 0.25 ctw Diamond Statement Ring
Amara 14K White Gold 0.50 ct Oval Emerald & 0.25 ctw Diamond Statement Ring

Amara 14K White Gold 0.50 ct Oval Emerald & 0.25 ctw Diamond Statement Ring

Located in Greeneville, TN

Discover the Amara Ring, exquisitely crafted in 14 K white gold. At its heart lies a premium 0.50 ct natural oval emerald, surrounded by 0.25 ctw of brilliant white diamonds—perfectl...

Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Emerald, Green Sapphire, White Gold

Ottilie  Platinum Ring with 4.63ct Fire Opal and 0.52ct Diamonds, Elegant Opal
Ottilie  Platinum Ring with 4.63ct Fire Opal and 0.52ct Diamonds, Elegant Opal

Ottilie Platinum Ring with 4.63ct Fire Opal and 0.52ct Diamonds, Elegant Opal

Located in Greeneville, TN

This stunning platinum ring features a mesmerizing 4.63-carat fire opal accented by 0.52 carats of natural diamonds, creating a bold and elegant statement piece. Perfect for engageme...

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
Antique 14k TT Gold 1.70ctw Channel Ruby & Pave Diamond 5 Band Harem Stack Ring

Antique 14k TT Gold 1.70ctw Channel Ruby & Pave Diamond 5 Band Harem Stack Ring

Located in Montclair, NJ

The square step cut rubies are neatly channel set and have an amazing blood red color which is perfectly complemented by the remarkable brilliance reflecting from the old single cut ...

Category

19th Century Square Antique Diamond Rings

Materials

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

Victorian 0.30ct Emerald and Diamond Trilogy Ring, c.1880s
Victorian 0.30ct Emerald and Diamond Trilogy Ring, c.1880s

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. The 0.30 carat central emerald is a carre cut stone. The accompanying diamonds weigh ...

Category

1880s Unknown Victorian Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Antique 1920s Platinum, Diamond Eternity Ring
Antique 1920s Platinum, Diamond Eternity Ring

Antique 1920s Platinum, Diamond Eternity Ring

Located in Brighton, GB

Delicately set with alternating sections of square set diamonds, the ring catches the light beautifully, creating a dazzling display that is both timeless and unique.

Category

Early 20th Century European Square Antique Diamond Rings

Materials

Diamond, Platinum

Art Deco Sapphire and Diamond and Platinum Three-Stone Ring
Art Deco Sapphire and Diamond and Platinum Three-Stone Ring

Art Deco Sapphire and Diamond and Platinum Three-Stone Ring

Located in Chipping Campden, GB

At the centre of this three stone ring there is a gorgeous deep blue sapphire and sat either side is a bright sparkling diamond.

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring
Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring

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 deep blue sapphire and sat either side is a bright sparkling diamond.

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Gold

Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring
Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring

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 a bright sparkling diamond. The sapphire measures 50pts and the diamonds measure 10...

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
Edwardian 0.65 Carat Emerald and Diamond Three Stone Ring, circa 1910s

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 Emerald is 0.65 carat, whilst the diamonds are 0.40 carat a piece. They have been e...

Category

1910s Unknown Edwardian Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Art Deco 0.80ct Emerald and Diamond Three Stone Ring, c.1920s
Art Deco 0.80ct Emerald and Diamond Three Stone Ring, c.1920s

Art Deco 0.80ct Emerald and Diamond Three Stone Ring, c.1920s

Located in London, GB

Dating to the Art Deco era, this trilogy ring features a central emerald flanked by sparkling old cut diamonds.

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

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

Art Deco Sapphire and Diamond and 18 Carat Gold Ring
Art Deco Sapphire and Diamond and 18 Carat Gold Ring

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 all set in platinum. The sapphires measure 45pts in total. Ring Size: I or 4 1/2 H...

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum, Gold

Art Deco Cats Eye Chrysoberyl Diamond Platinum Ring
Art Deco Cats Eye Chrysoberyl Diamond Platinum Ring

Art Deco Cats Eye Chrysoberyl Diamond Platinum Ring

Located in Beverly Hills, CA

It is complemented by round and square shape diamonds set around the ring weighing close to 1 carat total.

Category

1920s American Square Antique Diamond Rings

Materials

Chrysoberyl, Diamond, Platinum

Antique 0.50 Carat Emerald and 0.90 Carat Diamond Platinum Ring Circa 1920
Antique 0.50 Carat Emerald and 0.90 Carat Diamond Platinum Ring Circa 1920

Antique 0.50 Carat Emerald and 0.90 Carat Diamond Platinum Ring Circa 1920

Located in Jesmond, Newcastle Upon Tyne

A stunning, fine and impressive antique 0.50 carat emerald and 0.90 carat diamond, platinum square dress ring; part of our emerald jewelry collection.

Category

1920s Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

Zorab Creations Peridot Resplendent Rose Ring
Zorab Creations Peridot Resplendent Rose Ring

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 inducing green hue. The central bud element of this rose inspired design features a 4.0...

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
Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band

Belle Epoque Emerald, Ruby and Diamond Ring w Openwork Band

Located in Baltimore, MD

With it's underside revealing a diagonal sort of open lattice gold work upon which the square diamonds are set, our ring represents all the elements of the Belle Epoque.

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
1.07 Carat Late Art Deco European Diamond Platinum Engagement Ring

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 the shank. 1 old European cut 1.07ct J color and VS1 clarity Depth: 54.9% Table:...

Category

Early 20th Century Square Antique Diamond Rings

Materials

Diamond, Platinum

EGL Certified .61 Carat Round Diamond Platinum Three-Stone Engagement Ring
EGL Certified .61 Carat Round Diamond Platinum Three-Stone Engagement Ring

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 cut diamond, F-G (near colorless) and a VS2.

Category

Early 20th Century Square Antique Diamond Rings

Materials

Diamond, Platinum

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

Art Deco Sapphire and Diamond Platinum Eternity Band

Located in Chipping Campden, GB

This sweet diamond and blue sapphire eternity has the stones set within the platinum band. The stones are grouped in collections of three diamonds and three sapphires. The diamonds m...

Category

1910s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire, Platinum

Celeste  14K White Gold Ring With 1.00 CT Natural Oval Emerald, Size 7
Celeste  14K White Gold Ring With 1.00 CT Natural Oval Emerald, Size 7

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, accented by .44 CTW natural diamonds that add a radiant halo of sparkle. Crafted with ti...

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
1915 Art Deco Hand-Engraved White Gold Diamond Band

1915 Art Deco Hand-Engraved White Gold Diamond Band

Located in Lexington, KY

This is a lovely Art Deco band set in 18K white gold that features gorgeous hand engraving and five sparkling diamonds! Hand engraved with tiny starbursts, this elegant wedding band ...

Category

1910s Art Deco Square Antique Diamond Rings

Materials

Diamond, 18k Gold, White Gold

Art Deco Tourmaline and Diamond 18 Carat Gold Full Eternity Band
Art Deco Tourmaline and Diamond 18 Carat Gold Full Eternity Band

Art Deco Tourmaline and Diamond 18 Carat Gold Full Eternity Band

Located in Chipping Campden, GB

The tourmaline and diamond stones alternate in groups of three. There is a replacement diamond stone in one of the collections of four tourmaline stones. Set in a 18carat gold band w...

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
Isla  14K Yellow Gold Wedding Set with 0.70ct Tanzanite & 0.70ctw Diamonds

Isla 14K Yellow Gold Wedding Set with 0.70ct Tanzanite & 0.70ctw Diamonds

Located in Greeneville, TN

The Isla wedding set is a captivating blend of color, sparkle, and harmony. Crafted in 14K yellow gold, the set features a 0.70ct oval-cut natural tanzanite as its center stone—frame...

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
Marisol  14K Yellow Gold Wedding Set With 1.25 CT Tanzanite Center

Marisol 14K Yellow Gold Wedding Set With 1.25 CT Tanzanite Center

Located in Greeneville, TN

Introducing the Marisol Wedding Set—a radiant symbol of devotion and individuality, where vibrant color meets timeless brilliance. Handcrafted in solid 14K yellow gold, this two-rin...

Category

15th Century and Earlier American Modern Square Antique Diamond Rings

Materials

Diamond, Tanzanite, Yellow Gold

20th Century French White Gold Ring with Crown of Diamonds in Square Shape
20th Century French White Gold Ring with Crown of Diamonds in Square Shape

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 diamonds. Ring size: 50. P. Brut: 3.4g France, circa 1920.

Category

Early 20th Century French Square Antique Diamond Rings

Materials

Gold

Citrine Diamonid Ring in 14KT Yellow Gold Cocktail Evening Ring
Citrine Diamonid Ring in 14KT Yellow Gold Cocktail Evening Ring

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 rare find, the ring is a Victorian style made in 14KT yellow gold. GRAM WEIGHT: 1...

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
Art Deco Emerald and Diamond Ring

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, accompanied by GCS Report stating to be of Colombian origin, vertically-set between two ol...

Category

1920s Art Deco Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

A Victorian emerald and diamond five-stone ring
A Victorian emerald and diamond five-stone ring

A Victorian emerald and diamond five-stone ring

Located in London, GB

A Victorian emerald and diamond five-stone ring, alternately set with three square-cut emeralds with combined total weight of 0.93 carats, accompanied by GCS Report stating to be of ...

Category

19th Century British Victorian Square Antique Diamond Rings

Materials

Diamond, Emerald, 18k Gold

Art Deco Sapphire and Diamond Cluster Ring
Art Deco Sapphire and Diamond Cluster Ring

Art Deco Sapphire and Diamond Cluster Ring

Located in London, GB

This lovely geometric cluster ring features a square sapphire surrounded by a square frame of dazzling diamonds.

Category

1920s British Art Deco Square Antique Diamond Rings

Materials

Diamond, Sapphire

1.55 Carat Colombian Emerald & Diamond Three-stone Ring in Platinum 900
1.55 Carat Colombian Emerald & Diamond Three-stone Ring in Platinum 900

1.55 Carat Colombian Emerald & Diamond Three-stone Ring in Platinum 900

Located in Bangkok, TH

The diamonds used are G/H Color and VS Clarity. The ring is crafted in 5.80 Grams of Platinum 900.

Category

18th Century Victorian Square Antique Diamond Rings

Materials

Diamond, Emerald, Platinum

.54 Carat Sapphire Diamond Platinum Art Deco Calibre Ring
.54 Carat Sapphire Diamond Platinum Art Deco Calibre Ring

.54 Carat Sapphire Diamond Platinum Art Deco Calibre Ring

Located in Stamford, CT

Late Art Deco 1940's sapphire and diamond ring. 2 square shaped sapphires set sideways in a platinum engraved setting with 2 round accent diamonds. 2 calibre cut square Sapphires, a...

Category

Early 20th Century Square Antique Diamond Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

  • 1
Get Updated with New Arrivals
Save "Square Antique Diamond Rings", and we’ll notify you when there are new listings in this category.

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.