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TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5
TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5

TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5 Metal: platinum Size: 5 Band

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5
TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5

TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Platinum 4mm Half Circle Lucida Diamond Band Ring 5 Metal: platinum Size: 5 Band

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Sophisticated 0.79ct Natural Diamond Three-Stone Ring in Platinum
Sophisticated 0.79ct Natural Diamond Three-Stone Ring in Platinum

Sophisticated 0.79ct Natural Diamond Three-Stone Ring in Platinum

Located in רמת גן, IL

Certified brilliance, modern elegance. This platinum ring showcases a central 0.68ct square

Category

2010s Singaporean Three-Stone Rings

Materials

Diamond, Platinum

TIFFANY & Co. Platinum 3 Lucida Diamond 4mm Wedding Band Ring 5.5
TIFFANY & Co. Platinum 3 Lucida Diamond 4mm Wedding Band Ring 5.5

TIFFANY & Co. Platinum 3 Lucida Diamond 4mm Wedding Band Ring 5.5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Platinum 3 Lucida Diamond 4mm Wedding Band Ring 5.5 Metal: Platinum Size: 5.5 Band

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY & Co. Classic Platinum Lucida Diamond 6mm Wedding Band Ring 11
TIFFANY & Co. Classic Platinum Lucida Diamond 6mm Wedding Band Ring 11

TIFFANY & Co. Classic Platinum Lucida Diamond 6mm Wedding Band Ring 11

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Classic Platinum Lucida Diamond 6mm Wedding Band Ring 11 Metal: Platinum Size: 11

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Art Deco Platinum Diamond and Emerald Ring, Circa 1920, Italy
Art Deco Platinum Diamond and Emerald Ring, Circa 1920, Italy

Art Deco Platinum Diamond and Emerald Ring, Circa 1920, Italy

Located in Firenze, IT

An Art Déco diamond and emerald geometrical ring, with Platinum millegrain set with approximately

Category

Vintage 1920s Italian Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Tiffany & Co. Lucida 2.25 Carat G-VS1 Platinum Diamond Ring
GIA Tiffany & Co. Lucida 2.25 Carat G-VS1 Platinum Diamond Ring

GIA Tiffany & Co. Lucida 2.25 Carat G-VS1 Platinum Diamond Ring

By Tiffany & Co.

Located in Chicago, IL

elegant clipped corners, enhancing both brilliance and structural poise. Crafted in platinum, the ring

Category

2010s American Contemporary Solitaire Rings

Materials

Diamond, Platinum

Vintage 0.69ct Emerald & 0.52ct Diamond Platinum Cocktail Ring, 1950
Vintage 0.69ct Emerald & 0.52ct Diamond Platinum Cocktail Ring, 1950

Vintage 0.69ct Emerald & 0.52ct Diamond Platinum Cocktail Ring, 1950

Located in Jesmond, Newcastle Upon Tyne

vintage emerald and diamond ring has been crafted in platinum with an 18k white gold setting. The

Category

Vintage 1950s Unknown Cocktail Rings

Materials

Diamond, Emerald, Gold, 14k Gold, White Gold, Platinum

Platinum Watermelon Bicolor Tourmaline Baguette Diamond Sides 4.95ctw Ring
Platinum Watermelon Bicolor Tourmaline Baguette Diamond Sides 4.95ctw Ring

Platinum Watermelon Bicolor Tourmaline Baguette Diamond Sides 4.95ctw Ring

Located in Montclair, NJ

--Stone(s):-- (1) Natural Genuine Tourmaline - Square Cut - Claw Prong Set - Watermelon Bicolor

Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Tourmaline, Platinum

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 8 Metal: Platinum Size: 8

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Vintage Oscar Heyman 18k Gold & Platinum Checkerboard Sapphire Diamond Ring
Vintage Oscar Heyman 18k Gold & Platinum Checkerboard Sapphire Diamond Ring

Vintage Oscar Heyman 18k Gold & Platinum Checkerboard Sapphire Diamond Ring

By Oscar Heyman

Located in Montclair, NJ

.) Material: Solid 18k Yellow Gold w/ Platinum Top Weight: 7.1 Grams Ring Size: 5.5 (Fitted on a finger. We

Category

20th Century Cocktail Rings

Materials

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

Eloise Platinum Ring with 2.93ct Tourmaline and 0.09ct Diamonds - Ring size 6
Eloise Platinum Ring with 2.93ct Tourmaline and 0.09ct Diamonds - Ring size 6

Eloise Platinum Ring with 2.93ct Tourmaline and 0.09ct Diamonds - Ring size 6

Located in Greeneville, TN

This stunning platinum ring features a captivating 2.93-carat tourmaline accented by 0.09-carat

Category

Antique 15th Century and Earlier American Modern Fashion Rings

Materials

Diamond, Emerald, Tourmaline, Platinum

Antique 1.45 Carat Emerald and 1.43 Carat Diamond Platinum Engagement Ring
Antique 1.45 Carat Emerald and 1.43 Carat Diamond Platinum Engagement Ring

Antique 1.45 Carat Emerald and 1.43 Carat Diamond Platinum Engagement Ring

Located in Jesmond, Newcastle Upon Tyne

emerald and diamond ring has been crafted in platinum. The pierced decorated platinum setting is

Category

Vintage 1930s Unknown Cocktail Rings

Materials

Diamond, Emerald, Platinum

TIFFANY & Co. Platinum 3mm Half Circle Diamond Wedding Band Ring 5 New
TIFFANY & Co. Platinum 3mm Half Circle Diamond Wedding Band Ring 5 New

TIFFANY & Co. Platinum 3mm Half Circle Diamond Wedding Band Ring 5 New

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Platinum 3mm Half Circle Diamond Wedding Band Ring 5 Metal: Platinum Size: 5 Band

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Peter Suchy .76 Carat 5 Diamond Platinum Wedding Band Ring
Peter Suchy .76 Carat 5 Diamond Platinum Wedding Band Ring

Peter Suchy .76 Carat 5 Diamond Platinum Wedding Band Ring

By Peter Suchy

Located in Stamford, CT

Square step cut 5 diamond simple strong bar set wedding band, in platinum. Made in the Peter Suchy

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

TIFFANY & Co. Platinum 5mm Half Circle Lucida Diamond Band Ring 5
TIFFANY & Co. Platinum 5mm Half Circle Lucida Diamond Band Ring 5

TIFFANY & Co. Platinum 5mm Half Circle Lucida Diamond Band Ring 5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Platinum 5mm Half Circle Lucida Diamond Band Ring 5 Metal: Platinum Size: 5 Band

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 10.5
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 10.5

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 10.5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 10.5 Metal: Platinum Size

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Art Deco 2.25 CTW Emerald Diamond Platinum Vintage Scrolling Halo Ring
Art Deco 2.25 CTW Emerald Diamond Platinum Vintage Scrolling Halo Ring

Art Deco 2.25 CTW Emerald Diamond Platinum Vintage Scrolling Halo Ring

Located in Philadelphia, PA

knife edge shank Decorated with milgrain detail throughout Tested as platinum Circa: 1930s Ring Size: 7

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 5
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 5

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 5

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 5 Metal: Platinum Size: 5

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Peter Suchy EGL Certified 1.61 Carat Diamond Platinum Engagement Ring
Peter Suchy EGL Certified 1.61 Carat Diamond Platinum Engagement Ring

Peter Suchy EGL Certified 1.61 Carat Diamond Platinum Engagement Ring

By Peter Suchy

Located in Stamford, CT

Diamond engagement ring. EGL certified 1.61ct center stone set in a custom made platinum setting

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.03 Carat Diamond Platinum Engagement Ring by Tiffany & Co.
GIA Certified 1.03 Carat Diamond Platinum Engagement Ring by Tiffany & Co.

GIA Certified 1.03 Carat Diamond Platinum Engagement Ring by Tiffany & Co.

By Tiffany & Co.

Located in Beverly Hills, CA

This radiant Tiffany & Co. platinum engagement ring showcases a stunning GIA-certified 1.03-carat

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Platinum

Solid Platinum 1.80ctw Long Rectangular Emerald w/ Carre Cut Diamond Sides Ring
Solid Platinum 1.80ctw Long Rectangular Emerald w/ Carre Cut Diamond Sides Ring

Solid Platinum 1.80ctw Long Rectangular Emerald w/ Carre Cut Diamond Sides Ring

Located in Montclair, NJ

- 10.8x4.4mm - 1.0ct (approx.) (8) Natural Genuine Diamonds - Square Step Carre Cut - Channel Set - Nice

Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 4.25
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 4.25

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 4.25

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 4.25 Metal: Platinum Size

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Antique 2.44 Carat Peridot and 0.18 Carat Diamond Platinum Ring Circa 1910
Antique 2.44 Carat Peridot and 0.18 Carat Diamond Platinum Ring Circa 1910

Antique 2.44 Carat Peridot and 0.18 Carat Diamond Platinum Ring Circa 1910

Located in Jesmond, Newcastle Upon Tyne

, fine and impressive Edwardian ring has been crafted in platinum with an 18k yellow gold setting. The

Category

Vintage 1910s Cocktail Rings

Materials

Diamond, Peridot, Yellow Gold, Platinum

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 7 New
TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 7 New

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 7 New

By Tiffany & Co.

Located in Los Angeles, CA

TIFFANY & Co. Forever Platinum Lucida Diamond 4mm Wedding Band Ring 7 Metal: Platinum Size: 7

Category

2010s American Wedding Rings

Materials

Diamond, Platinum

Vintage 1.30Ct Sapphire and 0.90Ct Diamond, Platinum Cocktail Ring Circa 1950
Vintage 1.30Ct Sapphire and 0.90Ct Diamond, Platinum Cocktail Ring Circa 1950

Vintage 1.30Ct Sapphire and 0.90Ct Diamond, Platinum Cocktail Ring Circa 1950

Located in Jesmond, Newcastle Upon Tyne

impressive Art Deco sapphire ring has been crafted in platinum. The substantial setting is ornamented with a

Category

Vintage 1950s Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

6.17 Carat Square Emerald Cut Diamond Engagement Ring
6.17 Carat Square Emerald Cut Diamond Engagement Ring

6.17 Carat Square Emerald Cut Diamond Engagement Ring

Located in New York, NY

Finely crafted in platinum with a GIA certified Square Emerald cut Diamond weighing 6.17 carats, I

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Art Deco 7.28 CTW Citrine Diamond Platinum Vintage Wheat Cocktail Ring
Art Deco 7.28 CTW Citrine Diamond Platinum Vintage Wheat Cocktail Ring

Art Deco 7.28 CTW Citrine Diamond Platinum Vintage Wheat Cocktail Ring

Located in Philadelphia, PA

Complete by grooved shank Tested as platinum Circa: 1930s Ring size: 6 1/2 and sizable Measures north to

Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Citrine, Diamond, Platinum

Shreve, Crump & Low GIA Certified 5.01 Carat Square Emerald Cut Diamond Ring
Shreve, Crump & Low GIA Certified 5.01 Carat Square Emerald Cut Diamond Ring

Shreve, Crump & Low GIA Certified 5.01 Carat Square Emerald Cut Diamond Ring

By Shreve, Crump & Low

Located in Boston, MA

Shreve, Crump & Low platinum ring. The 5.01 carat square emerald cut center diamond is accented by 5

Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

3.98 Carat Natural 'AAA' Tanzanite and Diamond Ring Made in Platinum
3.98 Carat Natural 'AAA' Tanzanite and Diamond Ring Made in Platinum

3.98 Carat Natural 'AAA' Tanzanite and Diamond Ring Made in Platinum

Located in Tokyo, JP

A beautiful ring featuring a 3.98 Carat Natural Tanzanite and 1.94 Carat Diamonds Made in Platinum

Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Diamond, Tanzanite, Platinum

Tiffany & Co. True Cut .71 Carat Solitaire Diamond Engagement Ring in Platinum
Tiffany & Co. True Cut .71 Carat Solitaire Diamond Engagement Ring in Platinum

Tiffany & Co. True Cut .71 Carat Solitaire Diamond Engagement Ring in Platinum

By Tiffany & Co.

Located in Scottsdale, AZ

, adding extra sparkle without overwhelming the minimalist design. Crafted in platinum, this ring balances

Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, Platinum

Diamond Ring Platinum Band .89 TDW Engagement ZAI
Diamond Ring Platinum Band .89 TDW Engagement ZAI

Diamond Ring Platinum Band .89 TDW Engagement ZAI

By Estate Jewelry

Located in East Brunswick, NJ

Diamond Ring Platinum Band .89 TDW Engagement ZAI This estate three diamonds ring is crafted in

Category

20th Century Three-Stone Rings

Materials

Diamond, Platinum

Art Deco 2.50 CTW Garnet Diamond Platinum Vintage Double Halo Ring
Art Deco 2.50 CTW Garnet Diamond Platinum Vintage Double Halo Ring

Art Deco 2.50 CTW Garnet Diamond Platinum Vintage Double Halo Ring

Located in Philadelphia, PA

by orange blossom and scroll engraving Decorated with milgrain detail throughout Stamped for platinum

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Garnet, Platinum

Late Art Deco Platinum Burma Ruby and Diamond Engagement Ring - GIA
Late Art Deco Platinum Burma Ruby and Diamond Engagement Ring - GIA

Late Art Deco Platinum Burma Ruby and Diamond Engagement Ring - GIA

Located in Great Neck, NY

Beautiful Antique Art Deco Platinum Burma Ruby and Diamond Engagement Ring - GIA. This incredible

Category

Vintage 1940s Art Deco Engagement Rings

Materials

Diamond, Ruby, Platinum

47.33 Carat Aquamarine Diamond Yellow Gold Platinum Cocktail Ring
47.33 Carat Aquamarine Diamond Yellow Gold Platinum Cocktail Ring

47.33 Carat Aquamarine Diamond Yellow Gold Platinum Cocktail Ring

Located in Stamford, CT

Aqua and diamond cocktail ring. 47.33cts square faceted aquamarine greenish blue center stone set

Category

21st Century and Contemporary Cocktail Rings

Materials

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

GIA-Certified Square-Cut 7.02 Carat Emerald and Diamond Three-Stone Ring
GIA-Certified Square-Cut 7.02 Carat Emerald and Diamond Three-Stone Ring

GIA-Certified Square-Cut 7.02 Carat Emerald and Diamond Three-Stone Ring

Located in Chicago, IL

This Square-cut 7.02 carat emerald and diamond three-stone ring features a vivid green emerald

Category

2010s American Modern Three-Stone Rings

Materials

Diamond, Emerald, Platinum

Emerald with Ruby Ring Set in Platinum 950 Settings
Emerald with Ruby Ring Set in Platinum 950 Settings

Emerald with Ruby Ring Set in Platinum 950 Settings

Located in Bangkok, TH

Emerald 2.85 carats with Ruby 2.09 carats Ring set in Platinum 950 settings Width: 2.0 cm Length

Category

2010s Thai Three-Stone Rings

Materials

Emerald, Ruby, Platinum

GIA 3.50 carat fancy yellow VVS1 diamond platinum engagement ring
GIA 3.50 carat fancy yellow VVS1 diamond platinum engagement ring

GIA 3.50 carat fancy yellow VVS1 diamond platinum engagement ring

Located in Beverly Hills, CA

warmth of the yellow diamond. The ring is crafted in a combination of platinum and 18k yellow gold

Category

Mid-20th Century Modern Engagement Rings

Materials

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

Tiffany and Co. True Diamond Engagement Ring Platinum and Matching Wedding Band
Tiffany and Co. True Diamond Engagement Ring Platinum and Matching Wedding Band

Tiffany and Co. True Diamond Engagement Ring Platinum and Matching Wedding Band

By Tiffany & Co.

Located in New York, NY

Platinum Diamond: 0.89 carat Shape: Cut Cornered Square Color Grade: F Fluorescence: None Clarity

Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1.51 Carat No-Heat Purple Sapphire Diamond Platinum Ring, GIA Certified
1.51 Carat No-Heat Purple Sapphire Diamond Platinum Ring, GIA Certified

1.51 Carat No-Heat Purple Sapphire Diamond Platinum Ring, GIA Certified

Located in Beverly Hills, CA

A contemporary fashion ring featuring a striking 1.51 carat square purple sapphire. The vibrant hue

Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, Sapphire, Purple Sapphire, Platinum

Art Deco 9.01 CTW Step Cut Aquamarine Diamond Platinum Vintage Cocktail Ring
Art Deco 9.01 CTW Step Cut Aquamarine Diamond Platinum Vintage Cocktail Ring

Art Deco 9.01 CTW Step Cut Aquamarine Diamond Platinum Vintage Cocktail Ring

Located in Philadelphia, PA

approximately 0.30 carat total Tested as platinum Circa: 1930s Ring Size: 7 1/4 and sizable Measures north to

Category

Vintage 1930s Art Deco Engagement Rings

Materials

Aquamarine, Diamond, Platinum

GIA Certified 3.06 Carat D Internally Flawless Asscher Cut Diamond Platinum Ring
GIA Certified 3.06 Carat D Internally Flawless Asscher Cut Diamond Platinum Ring

GIA Certified 3.06 Carat D Internally Flawless Asscher Cut Diamond Platinum Ring

By Antinori Fine Jewels

Located in Chicago, IL

An exceptional and highly collectible diamond ring centered by a magnificent 3.06 carat Asscher cut

Category

2010s Italian Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

Oscar Heyman Diamond Ruby Platinum 18K Gold Checkerboard Vintage Band Ring
Oscar Heyman Diamond Ruby Platinum 18K Gold Checkerboard Vintage Band Ring

Oscar Heyman Diamond Ruby Platinum 18K Gold Checkerboard Vintage Band Ring

By Oscar Heyman

Located in Philadelphia, PA

Designed as a band ring centering a curving concave channel With two rows of square step cut rubies

Category

Vintage 1960s Band Rings

Materials

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

Vintage Estate 14K Yellow Gold Platinum Top Carre Cut Diamond Bypass Ring
Vintage Estate 14K Yellow Gold Platinum Top Carre Cut Diamond Bypass Ring

Vintage Estate 14K Yellow Gold Platinum Top Carre Cut Diamond Bypass Ring

Located in Great Neck, NY

Beautiful Vintage Estate 14K Yellow Gold Platinum Top Carre Cut Diamond Bypass Ring. This gorgeous

Category

Vintage 1960s Retro Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold, Platinum

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Square Platinum Ring For Sale on 1stDibs

Surely you’ll find the exact square platinum ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Each design created in this style — which was crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. In our selection of items, you can find a vintage example as well as a contemporary version. Making the right choice when shopping for a square platinum ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. 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. Creating a square platinum ring has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., EMD Diamonds and Antinori Fine Jewels are consistently popular. While most can agree that any square platinum ring from our collection can easily elevate most outfits, but the choice of a diamond version from the 954 available is guaranteed to add a special touch to your ensemble. Today, if you’re looking for a square cut version of this piece and are unable to find the perfect match, our selection also includes emerald cut and old european cut alternatives. Finding a square platinum ring for sale for women should be easy, but there are 411 pieces available to browse for unisex as well as men, too.

How Much is a Square Platinum Ring?

The price for a square platinum ring starts at $151 and tops out at $2,200,000 with these rings, on average, selling for $6,696.

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.