Contact 1stdibs
HomeJewelry & WatchesRingsSquare Diamond Rings

Square Diamond Rings

Square Diamond Pave Ring
Category

2010s Contemporary

Materials

Diamond, 18k Gold

Square Diamond Cocktail Ring
By Unknown
Category

Mid-20th Century Modern

Materials

Diamond, 14k Gold

Square Diamond Cocktail Ring
FREE SHIPPING
H .50 in. W .50 in.
Julius Cohen Square Diamond Ring
By Julius Cohen
Category

21st Century and Contemporary Contemporary

Materials

Diamond, 18k Gold

Two-Stone Platinum Ring Square Diamond and Square Emerald GIA
By Unknown
Category

Vintage 1930s Art Deco

Materials

Diamond, Emerald, Platinum

1.59 Carat Round Tanzanite Diamond Square Milgrain Halo Gold Ring
By Diamond Stars Jewelry, Inc.
Category

21st Century and Contemporary Contemporary

Materials

Diamond, White Diamond, Tanzanite, Gold, 18k Gold, White Gold

David Webb Square Diamond Gold Ring
By David Webb
Category

Vintage 1980s

Materials

Diamond, 18k Gold

Cicada Square Diamond and Melee Diamond Platinum Band Ring
By Cicada
Category

2010s

Materials

Diamond, Platinum

3.00 Carat Cushion Cut Ruby Red CZ and Diamond Gold Modernist Square Ring
By Diamond Stars Jewelry, Inc.
Category

21st Century and Contemporary Modernist

Materials

Crystal, Diamond, White Diamond, Other, Gold, 18k Gold, White Gold

Art Deco Square Diamond Cluster Ring, circa 1930s
By Unknown
Category

Vintage 1930s Art Deco

Materials

Diamond, 18k Gold

Oval Cabochon Sapphire Square Diamond Gold Engagement Ring
By Unknown
Category

Early 2000s

Materials

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

Round and Square Diamonds and Rectangle Tourmaline Platinum Ring
By Unknown
Category

20th Century

Materials

White Diamond, Tourmaline, Platinum

Diamond Square Gold Ring
By Unknown
Category

Vintage 1940s

Materials

Diamond, Yellow Gold, 14k Gold

Antique 1.00 Carat Square Diamond Emerald Onyx Platinum Ring
By Unknown
Category

Early 20th Century Art Deco

Materials

Diamond, Emerald, Onyx, Platinum

Square Halo Diamond Engagement Ring
By Unknown
Category

21st Century and Contemporary

Materials

White Diamond, 18k Gold, White Gold

Square Halo Diamond Engagement Ring
FREE SHIPPING
H 1 in. W 0.60 in. D 0.90 in.
Chopard Happy Diamonds Square Ring
By Chopard
Category

21st Century and Contemporary

Materials

Diamond, 18k Gold, White Gold

French 19th Century Square Diamonds 18 Karat Rose Gold Ring
By Unknown
Category

Antique Mid-19th Century Napoleon III

Materials

Diamond, White Diamond, Gold, 18k Gold, Rose Gold

LB Exclusive 18 Karat Rose Gold Round and Square Diamond Cocktail Ring
By LB Exclusive
Category

21st Century and Contemporary

Materials

Diamond, Rose Gold

LB Exclusive 18 Karat Rose Gold Round and Square Diamond Cocktail Ring
By LB Exclusive
Category

21st Century and Contemporary

Materials

Diamond, Rose Gold

LB Exclusive 18 Karat White Gold Round and Square Diamond Saddle Ring
By LB Exclusive
Category

21st Century and Contemporary

Materials

Diamond, White Gold

Square Cushion Sapphire Diamond Gold Ring
By Unknown
Category

21st Century and Contemporary Contemporary

Materials

Diamond, Sapphire, 14k Gold

Square Cut Diamond Eternity Wedding Band
By Unknown
Category

1990s

Materials

Diamond, Platinum

Round Diamond Square Shaped Wedding Band
By Unknown
Category

21st Century and Contemporary

Materials

Diamond, White Diamond, 14k Gold, White Gold

Round Diamond Square Shaped Wedding Band
FREE SHIPPING
H 0.80 in. W 0.09 in. D 0.80 in.
Square Cushion Ruby Diamond Gold Ring
By Unknown
Category

21st Century and Contemporary Contemporary

Materials

Diamond, Ruby, 14k Gold

Trillion Diamonds Square Cushion Sapphire Ring
By Unknown
Category

21st Century and Contemporary Contemporary

Materials

Diamond, Sapphire, 14k Gold

Square Shape Diamond Eternity Band Ring
Category

2010s Contemporary

Materials

Diamond, Platinum

Diamond Square Rock Crystal Gold Ring
By Unknown
Category

Late 20th Century Retro

Materials

Diamond, Rock Crystal, 14k Gold

Diamond Square Rock Crystal Gold Ring
FREE SHIPPING
H 0.52 in. W 0.83 in. D 1.26 in. Dm 0.71 in.
3.01 Carat Radiant Cut Diamond Engagement Ring GIA in Platinum Diamond Halo
By Concierge Diamonds Inc.
Category

2010s Modern

Materials

Diamond, Platinum

18 Karat White Gold Double Squares Diamond Pave Mounting Ring CRR8249
By Unknown
Category

21st Century and Contemporary

Materials

Diamond, White Gold

Square Emerald Diamond Gold Cluster Ring
By Unknown
Category

Mid-20th Century Modern

Materials

Diamond, Emerald, 18k Gold

GIA Certified Gabriel & Co. Platinum Square Diamond Engagement Ring 1.61 Carat
By Unknown
Category

2010s Contemporary

Materials

Diamond, Platinum

Emerald Square Diamond Round Halo Two-Color Gold Bridal Fashion Cocktail Ring
By Beyond Fine Jewelry
Category

21st Century and Contemporary Modern

Materials

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

Platinum Diamond Halo for a Square Cut Stone
By Gregory Mikaelian & Sons, Inc.
Category

2010s Contemporary

Materials

Diamond, Platinum

Buccellati Prestigio Diamond Gold Square Ring
By Buccellati
Category

20th Century

Materials

Diamond, 18k Gold

Helzberg Ideal Square Diamond Ring 0.45 Carat H VS2 18 Karat White Gold
Category

2010s

Materials

Diamond, 18k Gold, White Gold

14 Karat White Gold Diamond Square Ring
By Gregory Mikaelian & Sons, Inc.
Category

1990s Contemporary

Materials

Diamond, 14k Gold

Tacori 1.00 Carat Princess Cut or Square Diamond 18 Karat White Gold Ring
By Tacori
Category

21st Century and Contemporary Artisan

Materials

Diamond, White Diamond, 18k Gold

Oscar Heyman Contemporary 1.35 Carat Square Diamond 18 Karat Gold Eternity Band
By Oscar Heyman
Category

20th Century Modern

Materials

Diamond, 18k Gold

Rose Gold Diamond Square Wedding Ring Band
Category

21st Century and Contemporary

Materials

White Diamond, 18k Gold

Modern Sapphire Diamond White Gold Square Ring
By Unknown
Category

21st Century and Contemporary Modern

Materials

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

Art Deco Square Set Diamond Solitaire Ring
By Unknown
Category

Early 20th Century Art Deco

Materials

White Diamond, 18k Gold, Platinum

Art Deco Emerald Diamond Square Cluster Ring
By Unknown
Category

Vintage 1920s Art Deco

Materials

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

3.43 Carat Square Radiant Cut Diamond Engagement Ring
Category

2010s Contemporary

Materials

Diamond, White Diamond, 14k Gold, White Gold

French Modernist Square Shape Yellow Gold Diamond Ring
By Unknown
Category

Vintage 1960s Modernist

Materials

Diamond, 18k Gold

French Art Deco Platinum and Diamond Square Ring
By Unknown
Category

Vintage 1920s Art Deco

Materials

White Diamond, Platinum

Yellow Gold Diamond Ring with Circles and Squares
By Unknown
Category

Late 20th Century

Materials

Diamond, 18k Gold

Yellow Gold Diamond Ring with Circles and Squares
FREE SHIPPING
W 0.63 in. D 1.13 in.
Turquoise 14 Karat with Diamonds and Open Squares
By Unknown
Category

Vintage 1970s

Materials

Diamond, Turquoise, 14k Gold

Vintage Emerald and Diamond Squared Band Ring Set
By Unknown
Category

Vintage 1960s Contemporary

Materials

Diamond, Emerald, Platinum

Nally Square Shaped Diamond Platinum Eternity Band Ring
Category

2010s Contemporary

Materials

Diamond, Platinum

14 Karat Yellow Gold Diamond Three Square Ring
By Unknown
Category

21st Century and Contemporary

Materials

Diamond, Yellow Gold

Square Emerald Cut Diamond Platinum Eternity Band Ring
By Unknown
Category

2010s

Materials

White Diamond, Platinum

1960s Diamond Platinum Square Cut Half Band Ring
By Unknown
Category

Vintage 1960s Contemporary

Materials

Diamond, Platinum

Two-Tone Gold and Diamond Interlocking Square Modern Ring
By Unknown
Category

Vintage 1970s Modern

Materials

Diamond, White Diamond, 14k Gold

Tiffany & Co. Platinum NOVO Square Cushion Diamond Engagement Ring
By Tiffany & Co.
Category

21st Century and Contemporary

Materials

Diamond, White Diamond, Platinum

Square Step Cut Diamond Gold Eternity Band Ring
By Unknown
Category

1990s Modern

Materials

White Diamond, 14k Gold, White Gold

Retro Square Cut Diamond Platinum Eternity Band Ring
By Unknown
Category

Vintage 1940s Retro

Materials

Diamond, Platinum

Platinum Square Emerald Cut Diamond Engagement Ring GIA Certified
By Unknown
Category

21st Century and Contemporary

Materials

Diamond, Platinum

Luca Carati Amethyst Diamond Gold Square Swirl Ring
By Luca Carati
Category

21st Century and Contemporary Contemporary

Materials

Amethyst, Diamond, 18k Gold

5.60 Carat Square Emerald Cut Diamond Eternity Band
By Unknown
Category

1990s

Materials

Diamond, Platinum

8.12 Carat Square Emerald Cut Diamond Eternity Band
By Unknown
Category

1990s

Materials

Diamond, Platinum

Vintage Ruby Calibre Diamonds Square Yellow Gold Cocktail Ring
By Unknown
Category

1990s

Materials

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

Vintage Ruby Calibre Diamonds Square Yellow Gold Cocktail Ring
FREE SHIPPING
H 1.01 in. W 0.5 in. D 0.91 in.
Frequently Asked Questions
Are prices for square diamond rings negotiable on 1stdibs?
Prices for most square diamond rings on 1stdibs are negotiable. You’ll see a "Make an Offer" button on the item details page, indicating that the seller is willing to consider a lower price. It’s not uncommon for customers to get 15–25% off the list price after negotiating. See our tips for negotiating like a pro.
Who sells square diamond rings online at 1stdibs?
Only experienced, professional sellers who have applied and been thoroughly vetted by our team of experts can sell square diamond rings and other quality items on our site. Learn more about becoming a 1stdibs seller.
What is the Buyer Protection Guarantee?
The 1stdibs Buyer Protection Guarantee provides coverage for qualified purchases in the unlikely event that the item arrives not as described or is damaged. We’ll work with you and the seller to find a resolution, ensuring your satisfaction. View details
How does global shipping work on 1stdibs?
We have partnerships with the world's best shipping providers to facilitate seamless and fully-insured delivery from the seller's location directly to you, wherever you are in the world. Our logistics team is comprised of dedicated members who arrange all the details with our partners, servicing and supporting all shipments. Learn more about shipping on 1stdibs.
What payment methods are accepted on 1stdibs?
For your convenience, we offer multiple payment methods, including all major credit cards and PayPal. For many purchases we also offer financing options or wire transfer. Learn more about payment options on 1stdibs.