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0.30 Carat Alexandrite and Diamond Engagement Ring Set in Platinum
Located in Tokyo, JP
A spectacular engagement ring consisting of a tension-set 0.30 Carat Alexandrite and 0.28 Carats of
Category

2010s Japanese Art Deco Engagement Rings

Materials

Alexandrite, Diamond, Platinum

Art Deco 1930 American Ring In Platinum With 28.13 Cts In Sapphire And Diamonds
Located in Miami, FL
Art Deco gem set cocktail ring in platinum. Beautiful and historical piece from the Art-Deco
Category

Vintage 1930s American Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Star Sapphire, Platinum

Antique 1.50 Carat Sapphire Diamond 18 Karat Gold Ring
Located in Beverly Hills, CA
One Antique Sapphire Diamond 18 Karat Gold Ring. Featuring one square step cut sapphire of
Category

Vintage 1910s Unknown Edwardian More Rings

Materials

Diamond, Sapphire, Gold, 18k Gold

Vintage 1.5 Carat Blue Sapphire Platinum Eternity Band
Located in Addison, TX
Top of Ring Measurement: 2.1mm Color Stone Details: ( 35 qty) Type: Blue Sapphire Shape: Square Step
Category

Mid-20th Century Art Deco Band Rings

Materials

Blue Sapphire, Platinum

Exquisite Sapphire and Diamond Ring
Located in NEW ORLEANS, LA
This dazzling ring is set in platinum and is centered by one emerald cut blue sapphire framed by
Category

20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Belle Époque French pearl sapphire diamond 18k yellow gold ring
Located in Beverly Hills, CA
This Belle Époque ring features a luminous pearl framed by blue sapphires and glittering diamonds
Category

Vintage 1910s Belle Époque Cocktail Rings

Materials

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

Antique Art Deco Plat. 2ctw Sapphire Engraved Sides Eternity Stack Band Ring
Located in Montclair, NJ
Hard to find in French Cut! Enjoy! --Stone(s):-- (27) Natural Genuine Sapphires - Rare French
Category

Vintage 1920s Art Deco Band Rings

Materials

Sapphire

Fabulous Art Deco Diamond Sapphire Ring
Located in Chicago, IL
Round and Square cut Diamonds. Natural Shield shape Sapphires approximately 1 Carat each Flank Each side
Category

Vintage 1930s Unknown Cocktail Rings

Materials

Diamond, Sapphire, Platinum

GIA 3.44 Carat Diamond Platinum Ring
Located in Beverly Hills, CA
diamond ring. Framed by two perfectly suited faceted trapezoid cut sapphires and channel set square
Category

21st Century and Contemporary Unknown Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

Antique Platinum GIA Old European Cut Diamond Puffed Cushion Engagement Ring
Located in Montclair, NJ
(approx.) (4) Sapphires - Square French Cut - Channel Set - Deep Blue Color - 0.08ctw (approx.) Total
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

J. Birnbach GIA Certified 1.68 Carat Old European Cut and Sapphire Vintage Ring
By J. Birnbach
Located in New York, NY
features square sapphires, bright-cut pavé details, and delicate filigree work throughout the under-gallery
Category

20th Century American Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Art Deco Three-Stone Sapphire and Diamond Ring
Located in London, GB
of design. This piece showcases a single square shaped sapphire possessing a rich navy blue colour
Category

Early 20th Century Art Deco Three-Stone Rings

Materials

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

1.20 Carat, SI-1, Light Yellow Diamond Ring set in Platinum
Located in Tokyo, JP
An gorgeous Engagement Cluster Ring featuring a SI-1 Light Yellow Diamond and 0.80 Carats of White
Category

2010s Japanese Art Deco Cluster Rings

Materials

Yellow Diamond, Platinum

3.62 Carat Natural Aquamarine and Diamond Cocktail Ring Set in Platinum
Located in Tokyo, JP
A beautiful Cocktail Ring featuring a 3.62 Carat, Natural, Aquamarine and 1.27 Carats of Diamond
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

8.13 Carat Ceylon Sapphire Diamond Ring
Located in Boca Raton, FL
Material: Platinum Gemstone Details: AGL certified 8.13ct step cut square shape Ceylon (Sri Lanka
Category

21st Century and Contemporary Unknown Bridal Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Art Deco Three Stone Sapphire Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Art Deco Sapphire Diamond Ring A classic three-stone platinum art deco ring centering upon a
Category

Early 20th Century Art Deco Engagement Rings

4.63ct Center Diamond Sapphire ring
Located in Scottsdale, AZ
blue sapphires are cut in square and trapezoid like shapes. Size 6 1/4 and can be re size free and
Category

Mid-20th Century Art Deco Cocktail Rings

Materials

Blue Sapphire, White Diamond, Platinum

Art Deco Diamond Platinum Engagement Ring
Located in Boca Raton, FL
. There are also 4 accent sapphires set on each side. The square head measures 12 x 12mm, and the ring is
Category

Early 20th Century Art Deco Engagement Rings

Materials

White Diamond, Blue Sapphire, Platinum

0.66 Carat Color-Changing Alexandrite and Diamond Ring set in Platinum
Located in Tokyo, JP
A gorgeous ring featuring 0.66 Carat, Natural Alexandrite and 0.17 Carats of Diamond Accents set in
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

Alexandrite, Diamond, Platinum

C.J. Auger Sapphire Diamond Ring
Located in Amsterdam, NL
A 14 carat gold swirl ring set with a line of brilliant cut diamonds and one with square cut
Category

Vintage 1930s American Band Rings

Materials

Diamond, Sapphire, 14k Gold, Platinum

Vintage White Gold Sapphire and Diamond Full Eternity Band Ring
Located in Chipping Campden, GB
Vintage White Gold Sapphire and Diamond Full Eternity Band Ring Sweetest sapphire and diamond
Category

Late 20th Century Unknown Artist Band Rings

Materials

Diamond, Sapphire, White Gold

New Platinum 6.12 Ctw GIA Cushion Ceylon Light Dark Blue Sapphire 3 Stone Ring
Located in Montclair, NJ
This very elegant sapphire three stone engagement style ring is newly crafted in solid platinum. It
Category

2010s American Three-Stone Rings

Materials

Blue Sapphire, Platinum

Retro 3.02ct Diamond Sapphire Ring c.1950 s
Located in London, GB
Unusual geometric design ring set centrally with a square cut sapphire above a similarly cut
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Old gold ring with natural sapphire and diamonds.
Located in Chorzów, PL
Antique gold ring with platinum elements, old-cut diamonds and a rectangular sapphire. Natural
Category

Vintage 1950s Dutch Three-Stone Rings

Materials

Diamond, Sapphire, Gold, 18k Gold

French 1925s Art Deco Verneuil Sapphires Diamonds 18 Karat Yellow Gold Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, eagle head hallmark and platinum. Sublime Art Deco ring, its setting
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

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

Vintage 18K golden ring with 1.80ct sapphire and diamonds.
Located in Chorzów, PL
Ring with sapphire and diamonds made of 18 karat gold and platinum elements. Central, faceted
Category

Late 20th Century Unknown Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

1960s Oscar Heyman Sapphire and Diamond Bypass Ring
By Oscar Heyman
Located in New York, NY
A diamond and sapphire ring of bombé crossover design, with bead-set square sapphires and brilliant
Category

Vintage 1960s American Fashion Rings

Materials

Diamond, Sapphire, Platinum

Gem Rubellite Tourmaline Diamond Platinum Cocktail Ring
Located in Beverly Hills, CA
. Two square-shape pink sapphires continue to accent the ring on its top and bottom. Made in platinum
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Tourmaline, Platinum

1950s Oscar Heyman Sapphire Diamond Gold Ring
By Oscar Heyman
Located in San Francisco, CA
Oscar Heyman platinum round design 's cocktail ring, set with 5 square and rectangular-cut blue
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Sapphire and Diamond Cluster Ring
Located in London, GB
Here we have an outstanding platinum cluster ring crafted at a time when the Art Deco style was
Category

20th Century Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Diamond and Sapphire Dinner Ring
Located in NEW ORLEANS, LA
a column of square-cut sapphires, adding a touch of color and era-appropriate geometry. Great as a
Category

Early 20th Century Art Deco Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Sapphire and Diamond Target Ring
Located in London, GB
striking halo of square-cut sapphires possessing a deep blue colour providing a vivid contrast. The design
Category

Vintage 1930s Art Deco Cluster Rings

Materials

Diamond, Sapphire, Platinum

Tiffany Co. 1950s Retro 1.42 Carat Diamond Sapphire Platinum Eternity Band
By Tiffany Co.
Located in Philadelphia, PA
Eternity style band with polished channel edges Channel set with square cut sapphires weighing
Category

Vintage 1950s Unknown Retro Band Rings

Materials

Diamond, Blue Sapphire, Platinum

Gem Set Platinum 18K ring by Oscar Heyman
By Oscar Heyman
Located in Chicago, IL
3 row 18K and Platinum Ring comprising Square cut Diamonds, Rubies and Sapphires, Signed and
Category

20th Century American Cocktail Rings

Materials

Diamond, Ruby, Sapphire, 18k Gold, Platinum

Natural Unheated 12.41 Carat Cushion Shaped Sapphire Ring
By Hamilton
Located in Princeton, NJ
ring with unheated 12.41 carat cushion shaped sapphire, framed with 1.45 carats of diamonds, with
Category

21st Century and Contemporary Malagasy Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Edwardian 0.55 Carat Diamond Sapphire Navette Dinner Ring
Located in Philadelphia, PA
Bisected diagonally by channel set square calibré cut sapphire that weigh approximately 0.30 carat total
Category

Vintage 1910s Edwardian Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

Edwardian 0.55 Carat Diamond Sapphire Navette Dinner Ring
Located in Philadelphia, PA
Bisected diagonally by channel set square calibré cut sapphire that weigh approximately 0.30 carat total
Category

Vintage 1910s Edwardian Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

18 Karat and Platinum Ladies Ring with Blue Sapphire and Diamonds
Located in Braintree, GB
Vintage 18K and Platinum Ladies Ring With Blue Sapphire (0.41 CT) and Diamonds (0.28 CT Total) 1970
Category

Vintage 1970s Cluster Rings

Natural No-Heat Ceylon Sapphire + Diamond Ring 3.70ct
Located in Narberth, PA
-set Square Cut diamonds on each side, totaling 0.40ctw. The ring is completed by a polished band which
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 1.32 Carat Natural Siam, Untreated Ruby Ring Set in Platinum
Located in Tokyo, JP
A beautiful ring set in Platinum featuring a GIA Certified 1.32 Carat Natural Thai (Siam
Category

21st Century and Contemporary Japanese Modern Cocktail Rings

Materials

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

Tsavorite Garnet and Sapphire Ring, 3.29 Carat
Located in New Orleans, LA
ring. The emerald-cut tsavorite in the center weighs 3.29 carats, and the blend of tapered, trapezoid
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, Blue Sapphire, Tsavorite, 18k Gold, Platinum

Art Deco Sapphire and Diamond 18 Carat Gold Three-Stone Ring
Located in Chipping Campden, GB
is a bright sparkling diamond. The square cut sapphire measures 50pts and the old European cut
Category

Vintage 1920s British Art Deco Three-Stone Rings

Materials

Diamond, Sapphire, Gold

Art Deco Sapphire and Diamond 18 Carat Gold Ring
Located in Chipping Campden, GB
Stunning Art Deco Sapphire and diamond ring set in platinum and 18ct gold. The centre Sapphire is
Category

Vintage 1920s British Art Deco More Rings

Materials

Diamond, Sapphire, Platinum, 18k Gold

Edwardian 0.75ct Sapphire and Diamond Cluster Ring, c.1910s
Located in London, GB
0.75 carat emerald cut sapphire. It is claw set into platinum and surrounded by a halo of fourteen
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Art Deco Sapphire and Diamond Three-Stone Ring, circa 1920s
Located in London, GB
stone, square emerald cut, held by a four claw corner setting made of platinum. Either side are top
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

French Retro Sapphire Diamond Rose Gold Ring
Located in Beverly Hills, CA
The retro time period was a spectacle for vivacious creations. Featuring 16 natural square cut navy
Category

Vintage 1940s French Retro Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold

Vintage Certified Vivid Blue Sapphire 10 Cts, Natural Unheated Diamond Ring
Located in London, GB
Sapphire and diamond ring set in platinum. Centering a bold powerful royal blue sapphire
Category

2010s British Retro Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA J/SI1 1.00 Carat Diamond and Sapphire Engagement Ring
Located in San Francisco, CA
and baguette-cut diamonds, as well as 8 square-cut sapphires, for a total gem weight of 1.51 carats
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Art Deco Ceylon Sapphire and Diamond Ring, circa 1935
Located in London, GB
Art Deco Ceylon sapphire and diamond ring. Set to centre with a octagonal emerald-cut natural
Category

Vintage 1930s British Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Art Deco Sapphire and Diamond Ring
Located in London, GB
consisting of square calibrated sapphires possessing a deep navy blue colour tone. Matching old cut diamonds
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Platinum

Art Deco Cabochon Sapphire and Diamond Dress Ring, circa 1920s
Located in London, GB
within an angled square border of eight cut diamonds, all set in platinum atop 18 carat yellow gold
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

Art Deco Sapphire and Diamond Cluster Ring
Located in London, GB
sapphire is a square step cut and a mid to dark blue hue. The colour of the sapphire is highly complimented
Category

Vintage 1930s Engagement Rings

Materials

Sapphire, White Gold

Certified Sapphire (Natural Unheated Sri Lanka) 10.6 ct Diamond Cluster Ring
Located in London, GB
Sapphire and diamond ring set in platinum. Centering a bold powerful royal blue sapphire, which is
Category

2010s British Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

Vintage Aquamarine, Sapphire and Diamond Cocktail Ring, Circa 1960
Located in London, GB
1960. This ring is set with an impressive square emerald cut aquamarine of 13.60 carats approximately
Category

Vintage 1960s Unknown Retro Cocktail Rings

Materials

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

10.61 Carat Sapphire and 4.49 Carat Diamond Ring
Located in Carmel-by-the-Sea, CA
An impressive creation centered upon a 10.61 carat rectangular emerald cut blue sapphire. The major
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Blue Sapphire, Yellow Gold, Platinum

1950s 1.45 Carat Pink Sapphire and Diamond Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
sapphire cocktail ring has been crafted in 18k white gold with a platinum setting. The pierced decorated
Category

Mid-20th Century Unknown Art Deco Cocktail Rings

Materials

Diamond, Pink Sapphire, 18k Gold, White Gold, Platinum

Modern 2.56 Blue Sapphire Diamonds 18 Karat Yellow Gold Octogonal Ring
Located in Poitiers, FR
center of a cushion-cut sapphire on a square decor set with 16 modern brilliant-cut diamonds. On both
Category

21st Century and Contemporary French Modern Engagement Rings

Materials

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

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Square Cut Sapphire Platinum Ring For Sale on 1stDibs

Find the exact square cut sapphire platinum ring you’re shopping for in the variety available on 1stDibs. Frequently made of Platinum, Gold and 18k Gold, this item was constructed with great care. You can easily find a 72 antique edition and 18 modern creations to choose from as well. If you’re looking for a square cut sapphire platinum ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but 1 Carat and 1.5 Carat carat weights, specifically, are sought with frequency. Creating a square cut sapphire platinum ring has been a part of the legacy of many jewelers, but those produced by David Gross Group, Oscar Heyman and Sophia D are consistently popular. See these pages for a square cut iteration of this accessory, while there are also emerald cut cut and cushion cut cut versions available here, too. When shopping for a square cut sapphire platinum ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Square Cut Sapphire Platinum Ring?

The price for a square cut sapphire platinum ring starts at $396 and tops out at $52,500 with these rings, on average, selling for $3,100.

The Legacy of Sapphire in Jewelry Design

On 1stDibs, shop the bright blue gems that star in sapphire rings, sapphire necklaces and other vintage and antique sapphire jewelry

Sapphires — the stone of choice for Napoleon, Princess Diana and Elizabeth Taylor — have been a favorite of aristocrats and the well-to-do since the time of the Ancient Greeks.

Picture a sapphire. If the stone you conjure is a deep cornflower blue, you’re seeing only part of the picture. Although blue Kashmirs are considered the most valuable, sapphires come in every color except red. No matter the hue, this very special gem is rich in history and beloved by royals (FYI, Princess Diana and Kate Middleton share an 11-carat sapphire engagement ring), so September babies are in very noble company.

America’s version of royalty — old money and celebrities — have also shown a predilection for the blue stones. In 1940, John D. Rockefeller Jr. had Cartier mount a 62-carat sapphire he had bought from an Indian maharajah in a brooch for his first wife, Abby Aldrich Rockefeller; in 2001, the piece sold for a then-record of $3,031,000 at Christie’s New York.

The grand dame of jewelry, Elizabeth Taylor had a passion for the gems that her lovers were happy to indulge. Second husband Michael Wilding gave her an engagement ring set with a cabochon sapphire, while Richard Burton famously presented her with a BVLGARI sautoir set with diamonds and sapphires, including at its center a cabochon Burmese weighing 52.72 carats. One of the star lots in the sale of Taylor’s jewels at the Christie’s New York in 2011, it sold for $5,906,500.

You don’t have to have blue blood or a bulging bank account, however, to get an eyeful of this much-coveted gem. A number of outstanding examples reside in public collections.

The Smithsonian Museum of Natural History owns the 423-carat Logan sapphire, a gift from the Guggenheim family, and the Hall sapphire and diamond necklace, designed by Harry Winston and featuring 36 fine, well-matched cushion-cut Sri Lankan sapphires weighing a combined 195 carats. Also in the collection is the Bismarck sapphire necklace, designed by Cartier and sporting a central sapphire weighing 98.6 carats, which Mona Von Bismarck donated to the museum.

Sapphires are composed of corundum. Their color derives from trace elements, such as iron, titanium, chromium, copper or magnesium. When the trace element produces a ruby hue, the stone is called, what else, a ruby. (which is, as mentioned above, why sapphires cannot be red by definition).

The allure of large gemstones endures throughout the periods characterized as vintage, and sapphire features frequently in vintage engagement rings. (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.)  

Find an exquisite collection of vintage and antique sapphire 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.