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French 1920s Diamonds Platinum Round Shape Engagement Ring
Located in Poitiers, FR
Ring in platinum, dog head hallmark. Charming antique ring of the 1920s, it represents a round
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

1920 s 0.95 CTW Old European Diamond Platinum Engagement Alternative Ring
Located in Philadelphia, PA
Unique marquise cut diamond accents Tested as platinum and circa 1920 Top measures 7.8 mm wide and sits
Category

Vintage 1910s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1920s Art Deco Sapphire Diamond Gold Platinum Ring
Located in Litchfield, CT
Circa 1920s, platinum and 18k. This gorgeous diamond and sapphire Art Deco ring is set with 2.25
Category

Vintage 1920s Art Deco Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, Platinum

1920s Sapphire Diamond Platinum Cluster Ring
Located in Aspen, CO
C. 1920, there are 21 H/J VS diamonds amount to 2.3 cts. with the center being approximately 1 ct
Category

20th Century Unknown Art Deco More Rings

Materials

Diamond, Sapphire, Platinum

Deco 1920s Platinum Onyx and Diamond Ring
Located in Lexington, KY
This wonderful Deco ring comes from the 1920's and is made in platinum with diamond and black onyx
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Onyx, Platinum

1920s Art Deco Platinum Diamond Rin
Located in West Palm Beach, FL
diamonds, the ring is in m great condition and look beautiful for a piece from the 1920’s.
Category

20th Century Art Deco Cluster Rings

Materials

Diamond, Platinum

Antique 18ct Gold Platinum, 1920s Diamond Daisy Ring
Located in Brighton, GB
Antique Diamond Daisy Ring 18ct Gold & Platinum Stamped Circa 1920s Step back in time with
Category

Early 20th Century English Cluster Rings

Materials

Diamond, Gold, 18k Gold, Platinum

1920s Art Deco Diamond Platinum Engagement Ring
Located in Philadelphia, PA
rose cut diamonds weighing approximately 0.06 carat; well-matched to center Tested as platinum Circa
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

1920s, Antique Diamond and Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive antique 0.33 carat diamond and platinum dress ring; part of our diverse
Category

Vintage 1920s Unknown Cluster Rings

Materials

Diamond, Platinum

1920 s Art Deco 1.27 Carats Diamond Platinum Scrolling Heart Engagement Ring
Located in Philadelphia, PA
and bright Completed by engraved foliate and a grooved shank Tested as platinum Circa: 1920s Ring
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

1920s GIA 1.12 Carat Old European Diamond Platinum Engagement Ring
Located in Hicksville, NY
. 3.6 grams of Platinum. 1920's Edwardian, Size 7.5. GIA REPORT #: 2175907742, Report included with
Category

Vintage 1920s Unknown Edwardian Engagement Rings

Materials

Diamond, Platinum

1920s .51 Carat Diamond Platinum Engagement Ring
Located in Los Angeles, CA
.51 Carat G SI1 1920s Platinum Engagement Ring The real thing! True 1920s engagement ring
Category

Vintage 1920s American Art Deco Engagement Rings

Materials

White Diamond, Platinum

1920 s Very Fine Old European Cut Diamond Platinum Ring w/ GIA
Located in Carmel-by-the-Sea, CA
A fantastic one-of-a-kind and all-original Art Deco diamond ring. Handmade and hand pierced, this
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1920s Antique Diamond and Platinum Twist Ring
Located in Jesmond, Newcastle Upon Tyne
An impressive antique 1920s 0.79 carat diamond and platinum twist style dress ring; part of our
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Platinum

1920 s Art Deco 2.95 Carats Diamond Platinum Three Stone Dinner Ring
Located in Philadelphia, PA
platinum. Circa: 1920s. Ring Size: 5 1/4 & sizable. Measures: North to South 8.0 mm and sits 4.5 mm high
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

French 1920s Platinum Diamond Natural Pearl Ring
Located in Poitiers, FR
Platinum ring, dog head hallmark. The ring is set with a fine pearl and 2 x 3 rose cut diamonds
Category

Vintage 1920s French Belle Époque Bridal Rings

Materials

Diamond, White Diamond, Pearl, Natural Pearl, Platinum

Antique 18ct Gold Platinum, 1920s Diamond Daisy Illusion Ring
Located in Brighton, GB
Antique Diamond Daisy Ring 18ct Gold & Platinum Circa 1920s Step back in time with this
Category

Early 20th Century European Engagement Rings

Materials

Diamond, Gold, 18k Gold, Platinum

Art Deco Style Diamond Filigree Platinum Ring, circa 1920s
Located in Beverly Hills, CA
This intricate Art Deco style platinum ring showcases a captivating filigree design, crafted with a
Category

20th Century Art Deco Dome Rings

Materials

Diamond, Platinum

1920s Art Deco Sapphire Diamond Platinum Ring
Located in Geneva, CH
Diamonds (approximately 1.00 carat) mounted on platinum. Circa 1920. Gross weight: 5.69 grams
Category

Vintage 1920s Art Deco More Rings

Materials

Diamond, Sapphire, Platinum

1920 s Art Deco Diamond Pearl Platinum Toi Et Moi Bypass Ring
Located in Philadelphia, PA
Bypass style ring centers a 6.0 mm round pearl with a belcher set round brilliant cut diamond
Category

Vintage 1930s Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Pearl, Platinum

1920s GIA Certified 1.90 Carat Total Diamond Platinum Engagement Ring
Located in Hicksville, NY
1920s Art Deco Era Platinum Diamond Engagement Ring Amazing filigree detailing and cut-outs
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

French 1920s 5.50 Carats Tourmaline Diamonds Platinum Daisy Ring
Located in Poitiers, FR
Ring in platinum, dog head hallmark. Magnificent antique cluster ring, its oval frame is flat and
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, Tourmaline, White Diamond, Platinum

1920s 1, 35 Carat Diamond Platinum Flower Cluster Ring
Located in Poitiers, FR
Ring in platinum. Charming antique daisy ring, its setting is moved like a flower and decorated
Category

Vintage 1920s French Belle Époque Cluster Rings

Materials

Diamond, White Diamond, Platinum

1920s Art Deco Emerald Diamond Platinum Engagement Ring
Located in Chicago, IL
A platinum topped 18K gold ring centered with a bezel set old cut oval diamond (7 x 6.35 x 4.5 mm
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Emerald

Antique Platinum, 1920s Round 1.25 Carat Diamond Engagement Ring
Located in Brighton, GB
Antique Diamond Ring Platinum Circa 1920s Step back in time with this stunning 1920s platinum
Category

Early 20th Century European Engagement Rings

Materials

Diamond, Platinum

Art Deco 3.70ct Diamond Cluster Ring c.1920’s
Located in London, GB
: Diamond Stone Shape: Old Cut Carat Weight: 3.70 Colour: G-H Clarity: VS-SI Metal: Platinum Age: 1920s Size
Category

Vintage 1920s Unknown Art Deco Cluster Rings

Materials

Diamond, Platinum

1920s GIA Certified 2.01 Carat Diamond and Platinum Engagement Ring
Located in Hicksville, NY
1920s Platinum Setting with Intricate Details. Diamond Details: Center Diamond is 2.01 Carat
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

French 1920s 2.45 Carat Brilliant Cut Diamond Solitaire Platinum Ring
Located in Poitiers, FR
Platinum ring, dog head hallmark. Set with an antique brilliant cut diamond of 2.45 carats on
Category

Vintage 1920s French Belle Époque Solitaire Rings

Materials

Diamond, White Diamond, Platinum

Platinum Double Decker 1.70 Carat Diamond Deco Ring, circa 1920s
Located in Addison, TX
Description: Here we have an 1920 Art Deco Platinum 1.70cttw Old European Cut Diamond Engagement
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

Antique Platinum Stamped, 1920s Diamond Three Stone Ring
Located in Brighton, GB
Antique Diamond Ring Platinum Stamped Circa 1920s Take a look at this stunning 1920s diamond
Category

Early 20th Century European Three-Stone Rings

Materials

Diamond, Platinum

Platinum Double Decker 1.70 Carat Diamond Deco Ring, circa 1920s
Located in Addison, TX
Description: Here we have an 1920 Art Deco Platinum 1.70cttw Old European Cut Diamond Engagement
Category

Vintage 1920s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

1920s Art Deco Diamond Emerald Elongated Platinum Dinner Ring
Located in Birmingham, AL
This gorgeous ring centers a 0.39ct old European cut diamond grading as an "I" color and "SI2
Category

Vintage 1920s Unknown Art Deco Three-Stone Rings

Materials

Diamond, Emerald, White Diamond, Platinum

1920 s Art Deco No Heat Ceylon Sapphire Diamond Platinum Cluster Ring GIA
Located in Philadelphia, PA
Tested as platinum Numbered with maker's mark Circa: 1920s Ring Size: 5 3/4 & sizable Measures North
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Antique Art Deco Platinum Jade and Diamond Ring circa 1920s
Located in New York, NY
An exquisite Art Deco platinum Jade diamond ring showcases a vibrant marquise cut jadeite cabochon
Category

Vintage 1920s American Art Deco Cocktail Rings

Materials

Diamond, Jade, Platinum

1920s 1.50 Carat Diamond and Platinum Trilogy Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.50 carat diamond and platinum three stone/trilogy ring
Category

Vintage 1920s Engagement Rings

Materials

Diamond, Platinum

Antique Platinum, 1920s 0.40ct Single Stone Diamond Ring with Diamond Shoulders
Located in Brighton, GB
Antique Diamond Ring Platinum Circa 1920s Step back in time with this stunning engagement ring
Category

Early 20th Century European Engagement Rings

Materials

Diamond, Platinum

Platinum 1920s Art Deco Diamond Solitaire Engagement Ring
Located in Santa Barbara, CA
This tasteful Art Deco diamond solitaire engagement ring is simple, yet elegant. The near flawless
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

1920 s Early Art Deco 1.75 Carats Sapphire Diamond Platinum Double Halo Ring
Located in Philadelphia, PA
. Tested as platinum. Circa: 1920s. Ring Size: 7 & sizable. Measures: North to South 14.0 mm and sits 4.0
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

1920 s Art Deco Diamond Emerald Platinum-Topped 18 Karat Gold Double Ring
Located in Philadelphia, PA
carat - eye clean and white Tested as platinum-topped 18 karat gold Circa: 1920s Ring Size: 7 1/2
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

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

1920s 2.61 Carat Diamond and Platinum Dress Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning antique 1920's 2.61 carat diamond and platinum cluster style dress ring; part of our
Category

Early 20th Century Unknown Cocktail Rings

Materials

Diamond, Platinum

1920 s Art Deco 3.16 Carat Old European Cut Diamond Platinum Engagement Ring
Located in Philadelphia, PA
by pierced diamond motif shoulders. With engraved scroll motif. Stamped for platinum. With maker's
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique Emerald and Diamond Platinum Coronet Cluster Ring, circa 1920s
Located in London, GB
, with a combined weight of approximately 1.40 carats, all mounted in platinum. England, circa 1920's
Category

Vintage 1920s English Edwardian Cluster Rings

Materials

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

1920s 1.15 Carat Diamond and Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
This stunning, fine and impressive diamonds has been crafted in platinum. The ring has a pierced
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Platinum Diamond Cluster Ring Circa 1920s
Located in ADELAIDE, SA
An Art Deco geometric cluster with the larger diamonds set in hexagonal bezel settings. This ring
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Platinum

Platinum Art Deco Old European Cut Diamond Engagement Ring, circa 1920s
Located in Cape May, NJ
Era: Art Deco c.1920's Composition: Platinum Primary Stone: Old European Cut Diamond Stone Carat
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

Antique 1920s Platinum Fancy Cut-Out Diamond Eternity Ring, Wedding Band Ring
Located in Brighton, GB
Antique Eternity Ring Platinum Tested Circa 1920s Step back in time with this exquisite 1920s
Category

Early 20th Century English Band Rings

Materials

Diamond, Platinum

1920s 2.0 Carat Art Deco Sapphire Emerald Diamond Platinum Ring
Located in Litchfield, CT
Circa 1920s, platinum, American. Simply stunning, this phenomenal ring is Art Deco design at its
Category

Vintage 1920s American Art Deco Fashion Rings

Materials

Diamond, Emerald, Sapphire, Platinum

1920s Belle epoque 2.21 Carat Black Opal Diamonds Platinum Ring
Located in Poitiers, FR
Ring in platinum. Magnificent marquise ring it is decorated in the center of a black opal in
Category

Vintage 1920s French Belle Époque Engagement Rings

Materials

Diamond, White Diamond, Opal, Black Opal, Platinum

Art Deco Diamond Platinum Engagement Ring Mined .95ct Antique Original 1920s
Located in Dearborn, MI
Genuine Original Antique from the 1920's Art Deco Diamond Platinum Engagement Ring .95ct
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

1920 S Art Deco 2.03ct Diamond and Emerald Platinum Engagement Ring- GIA Cert
Located in Addison, TX
This exquisite early Art Deco ring from the 1920s features a striking platinum bow motif, capturing
Category

Vintage 1920s Art Deco Engagement Rings

Materials

White Diamond, Emerald, Platinum

1920s GIA 1.47 Carat Old European Cut Diamond Platinum Engagement Ring
Located in Hicksville, NY
three old single cut diamonds. The band is handcrafted in platinum, and the piece is in excellent
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

Antique Art Deco 1920s Platinum and Diamond Dinner Ring
Located in Washington Depot, CT
Antique Art Deco 1920's Platinum and Diamond Dinner Ring. A row of six vibrant diamonds are
Category

20th Century More Rings

Materials

Diamond, Platinum

Art Déco Ring With Diamonds And Pearls Circa 1920 s
Located in Firenze, IT
Art Déco ring with diamonds and pearls, yellow gold, platinum. Marquise-shaped, millegriffes-set
Category

Vintage 1920s Italian Art Deco Engagement Rings

Materials

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

1920s Art Deco Diamond Emerald Platinum Engagement Ring
Located in Hicksville, NY
Item Details: Ring Size: 3.25 Metal Type: Platinum Weight: 3.2 grams Center Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Emerald, Platinum

1920s French Antique Diamond Gold Platinum Whirl Ring
Located in Poitiers, FR
the main diamond: about 0.36 carat. Height: 12 mm, thickness: 3.5 mm, ring width at the base: 1.7 mm
Category

Vintage 1920s French Art Nouveau Engagement Rings

Materials

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

1920s Antique 1.28 Carat Diamond and Platinum Solitaire Ring
Located in Jesmond, Newcastle Upon Tyne
shank is hallmarked with the platinum guarantee mark (PLAT). This original 1920's solitaire ring is
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Platinum

1920s 5.19 Carats Aquamarine Diamond Platinum Yellow Gold Pompadour Ring
Located in Poitiers, FR
Ring in 18 karats yellow gold, owl hallmark and platinum, mascaron hallmark. Antique ring, called
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

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

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1920s Diamond Platinum Ring For Sale on 1stDibs

You are likely to find exactly the 1920s diamond platinum ring you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. Our collection of these items for sale includes 4939 vintage editions and 1 modern creations to choose from as well. Making the right choice when shopping for a 1920s diamond 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 19th 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. Finding an appealing 1920s diamond platinum ring — no matter the origin — is easy, but Tiffany Co., Cartier and J.E. Caldwell Co. each produced a popular version that is worth a look. See these pages for an old european cut iteration of this accessory, while there are also round cut cut and old mine cut cut versions available here, too. When shopping for a 1920s diamond 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 1920s Diamond Platinum Ring?

On average, a 1920s diamond platinum ring at 1stDibs sells for $6,025, while they’re typically $1 on the low end and $675,000 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.

Questions About 1920s Diamond Platinum Ring
  • 1stDibs ExpertNovember 21, 2023
    In the 1920s, engagement rings still looked like rings but were representative of a diverse range of styles and influences. Art Deco diamond ring designs took inspiration from the contemporary Cubist movement as well as from ancient Egypt – a revival sparked by the opening of King Tut’s tomb in 1922. Native American, African and Asian motifs also inspired jewelry pieces. Diamonds in square and rectangular shapes incorporating angular steps – like emerald cuts, Asscher cuts and baguettes – were set against black onyx, rubies, sapphires and emeralds to create color-blocking effects. Platinum, 18-karat gold, 14-karat white gold and sterling silver were some of the favored metals of the decade. Find a wide range of Art Deco engagement rings on 1stDibs.