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Emerald Radiant Cut Engagement Rings

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Roman Malakov, Radiant Cut Colombian Emerald With Side Stones Engagement Ring
By Roman Malakov
Located in New York, NY
This stunning and elegant engagement ring showcasing a AGL certified color-rich radiant cut green
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Emerald, Platinum

Radiant Emerald and Diamonds Halo Engagement Ring
Located in רמת גן, IL
0.59CT Radiant Emerald and Diamonds Halo 14K Gold Engagement Ring Product Description
Category

2010s Israeli Modern Engagement Rings

Materials

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

1.27 Carats Radiant Cut Green Emerald & Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
A color-rich three stone engagement ring showcasing a 1.27 carats green emerald, set in a classic
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

White Gold Radiant Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Rome, IT
White Gold Radiant Cut Diamond Engagement Ring. The ring weighs 4.6 grams, size 7.25, the
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum, White Gold

Radiant Cut Halo Pave White Gold Engagement Ring
By Antinori Fine Jewels
Located in Rome, IT
Weighing 3.1 grams and sized at 5, this 14k White Gold Engagement Ring showcases a Total Weight of
Category

2010s Italian Modern Engagement Rings

Materials

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

Haisley's Radiant Cut Engagement Ring Hidden Halo
Located in Los Angeles, CA
This ring makes for a perfect Engagement Ring for the perfect Bride to be. Ring Information Metal
Category

2010s American Modern Engagement Rings

Materials

18k Gold, Yellow Gold

Verragio Radiant Cut Halo Pave White Gold Engagement Ring
By Verragio
Located in Rome, IT
Presenting an elegant solitaire engagement ring with a total diamond weight of 1.6 carats
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

14K White Gold Three Stone Emerald Cut Diamond Radiant Cut Tourmaline Engagement
Located in Los Angeles, CA
Tourmaline Three Stone Engagement Ring. There is a beautiful tourmaline that is unique both in color and cut
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Tourmaline, 14k Gold, White Gold

1980s Vintage GIA 3.77ctw Radiant cut DIAMOND & Green EMERALDs Platinum Ring
Located in New York, NY
Art Deco Style Vintage GIA 3.77ctw Radiant cut Diamond & Green EMERALDs Platinum Ring, Circa 1980s
Category

Vintage 1980s Art Deco Engagement Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 3.28 Carat Elongated Radiant Cut Tsavorite Garnet Engagement Ring
Located in Los Angeles, CA
Radiant Cut Garnet Engagement Ring. Shape- Elongated Radiant Cut 9 (Octagonal Step Cut) Metal- 90
Category

2010s American Art Deco Engagement Rings

Materials

Garnet, Tsavorite, Platinum

1 Carat Radiant Emerald Cut Diamond Ring 18k Gold
By Rose and Choc
Located in Wallingford, CT
Radiant emerald cut diamond sets on 18 karat gold ring. Solid 18k gold Yellow gold, white gold, and
Category

2010s American Modern Engagement Rings

Materials

Diamond, Gold, 14k Gold, 18k Gold

GIA 5.78ct Radiant Cut Natural Fancy Yellow Diamond Engagement Ring, Platinum
Located in New York, NY
A striking three-stone diamond ring with a 5.78-carat natural Fancy Yellow radiant cut diamond, VS2
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Yellow Diamond, Diamond, Platinum, Yellow Gold, Gold

2.0tcw AAA+ Colombian Emerald-Emerald Cut & Diamond Halo Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a fine quality, Colombian emerald, and diamond halo engagement ring. The
Category

2010s American Modern Engagement Rings

Materials

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

1.68tcw 14K AAA+ Colombian Emerald-Emerald Cut & Diamond Engagement Ring
Located in Jupiter, FL
Displayed is a natural AAA+ Asscher cut Colombian emerald and diamond accent engagement ring. The
Category

2010s American Modern Engagement Rings

Materials

Diamond, Emerald, Gold, 14k Gold, White Gold, Yellow Gold

David Rosenberg 5.01 Carat Radiant Cut F SI1 GIA Diamond Engagement Ring
By David Rosenberg
Located in Boca Raton, FL
Rosenberg Diamonds & Co. 5.01 carat Emerald cut F color SI1 clarity is accompanied by a GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Scarselli GIA-Certified 2 Carat Fancy Yellow Radiant Cut Diamond Engagement Ring
By SCARSELLI
Located in New York, NY
2.02 Carat Fancy Yellow GIA-Certified Radiant Cut SI1 Diamond Engagement Ring with 18 Karat White
Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Platinum, Yellow Gold, White Gol...

Scarselli GIA-Certified 2 Carat Fancy Yellow Radiant Cut Diamond Engagement Ring
By SCARSELLI
Located in New York, NY
2.02 Carat Fancy Yellow GIA-Certified Radiant Cut SI1 Diamond Engagement Ring with 18 Karat White
Category

2010s American Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Platinum, Yellow Gold, White Gol...

1.07ct Diamond Emerald Engagement Ring
Located in New York, NY
This is a fabulous platinum engagement ring. The ring is centered with a sparkling radiant cut
Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1.68tcw 14k Colombian Emerald-Asscher Cut & Diamond Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural, Emerald cut Colombian emerald and diamond accent engagement ring
Category

2010s American Modern Engagement Rings

Materials

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

1.29tcw 14K Colombian Emerald-Round Cut & Diamond Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a round shape Colombian emerald and diamond accent engagement ring. The
Category

2010s American Modern Engagement Rings

Materials

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

1.01 Carat Diamond Emerald Engagement Ring
Located in New York, NY
This is an elegant platinum engagement ring inspired from the Art Deco era. The ring is centered
Category

20th Century Art Deco Engagement Rings

Materials

Diamond, Platinum

1.32tcw Natural Emerald-Round Cut & Hidden Diamond Accent Engagement Ring
Located in Jupiter, FL
This ring features a 1.30-carat natural emerald, pear cut. Set in a secure four-prong setting, this
Category

2010s American Modern Engagement Rings

Materials

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

GIA 3.51 ct Total Weight Platinum Rectangular Radiant Cut Diamond Engagement Rin
By Antinori Fine Jewels
Located in Rome, IT
3.51 ct Total Weight Platinum Rectangular Radiant Cut Diamond Engagement Ring. The ring weighs
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 3.02 Carat Emerald Cut Fancy Yellow Diamond Engagement Ring
Located in Los Angeles, CA
Cut Diamond 3.02 SI1 Clarity, 2 Emerald Cut Diamonds, 38 Round Diamonds F-G Color VS2-SI1 Clarity 1.58
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

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

GIA Certified 4.00 Carat F VS2 Radiant Diamond Engagement Ring "Sabrina"
Located in New York, NY
The "Sabrina" engagement ring is an embodiment of both grandeur and grace, showcasing a GIA
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.14 Carat F VS2 Radiant Diamond Engagement Ring "Patricia"
Located in New York, NY
The "Patricia" engagement ring exudes a refined elegance, featuring a GIA Certified 4.14 Carat
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3.50 Carat E VS1 Radiant Diamond Engagement Ring "Madison"
Located in New York, NY
exceptional diamonds. The radiant cut of the diamond combines the intense clarity of a classic round with the
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 4.00 Carat F VS2 Radiant Diamond Engagement Ring "Riley"
Located in New York, NY
" is an engagement ring that transcends mere aesthetics, embodying the promise of a future as radiant
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

0.75tcw 14K Colombian Emerald-Pear Cut & Diamond Accent Band Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural Colombian emerald and diamond halo engagement ring. The center gem
Category

2010s American Modern Engagement Rings

Materials

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

1.15tcw 14k Colombian Emerald-Pear Cut & Diamond Halo Gold Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural Colombian emerald and diamond halo engagement ring. The center gem
Category

2010s American Modern Engagement Rings

Materials

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

GIA Certified 2 Carat Radiant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
An extraordinary GIA certified Radiant Brilliant Cut Diamond weighing 2.06 ct, E in color, VS2 in
Category

2010s Italian Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Certified 2.00 Carat Emerald Cut Diamond Engagement Ring in 18K White Gold
By Simon Ardem
Located in New York, NY
Diamond ring with Emerald cut natural diamond center stone 2.00ct E SI2. Measurements: 8.70 x 6.10
Category

2010s American Engagement Rings

Materials

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

Vintage 14k Gold, Emerald & Diamond Engagement Ring
Located in Miami, FL
Fashioned from radiant 14k yellow gold, this captivating engagement ring features a stunning 1.05
Category

21st Century and Contemporary European Contemporary Engagement Rings

Materials

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

1.50 ct Fancy Vivid Yellow Radiant Shape and Tapers Engagement Diamond Ring
Located in KAATSHEUVEL, NL
engagement ring in 18k white gold. Radiant cut 3 stone engagement ring with Fancy Vivid Yellow diamond VS2
Category

21st Century and Contemporary Italian Contemporary Engagement Rings

Materials

Yellow Diamond, White Diamond, Diamond, Yellow Gold, White Gold, 18k Gol...

2.38tcw 14K Round Emerald & Diamond Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural, round Colombian emerald and diamond accent engagement ring. The
Category

2010s American Modern Engagement Rings

Materials

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

Emerald Cut Diamond and Squared Halo Engagement Ring White Gold, D-E / VVS1-VVS2
Located in Scottsdale, AZ
Ring Size: 5.25 Exuding timeless elegance and unparalleled brilliance, this stunning emerald cut
Category

21st Century and Contemporary Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Gold, 14k Gold, White Gold

Fancy Light Yellow Diamond Ring 3.78 Carat Radiant Cut GIA Certified
By Tamir
Located in Beverly Hills, CA
State of the art platinum and 18K yellow gold ring, centered by an exceptional 3.78 carat Fancy
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Multi-gemstone, Diamond, White Diamond, Yellow Diamond, 18k Gold, Yellow...

EGL 3.02 Ct H/VS2 Radiant Diamond Platinum 3-Stone Engagement Ring w. 2 Traps
By Sebastian Bernard
Located in Los Angeles, CA
A beautiful EGL US Certified Radiant Cut H/VS2 center Diamond set in a fine Platinum 3 stone
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Radiant Aquamarine Ring 2.59 Carat
By Merkaba
Located in Beverly Hills, CA
This unique, custom cut 2.59 carat Aquamarine, blends an emerald cut outline with a radiant cut, to
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Aquamarine, Beryl, Diamond, White Diamond, Multi-gemstone, Platinum

4.21tcw 14K Rectangle Colombian Emerald & Diamond Accent Band Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural, emerald-cut Colombian emerald and diamond accent engagement ring
Category

2010s American Modern Engagement Rings

Materials

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

5.95tcw AAA Quality Colombian Emerald & Pave Diamond Accents Engagement Ring 18k
Located in Jupiter, FL
Elegantly displayed is a natural, emerald-cut AAA Colombian emerald and diamond shank ring. The
Category

2010s Colombian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold

18k White Gold Cts 1.45 Oval Emerald and Diamond Engagement Ring
Located in Hong Kong, HK
never fade. Go ahead and make this emerald and diamond engagement ring your happily ever after. All
Category

2010s Hong Kong Contemporary Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

5.79tcw 18K Fine Cushion Colombian Emerald & Diamond Accent Gold Engagement Ring
Located in Jupiter, FL
Elegantly displayed is a natural, cushion-cut Colombian emerald and diamond shank ring. The center
Category

2010s Colombian Contemporary Engagement Rings

Materials

Diamond, Emerald, Gold, 18k Gold

Art Deco Inspired 2.09 Carat Round Brilliant Cut Diamond Emerald Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 2.09 Carat Round Brilliant Cut Diamond and Emerald Platinum Ring. Featuring
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Square Emerald and diamonds halo classic ring
Located in רמת גן, IL
Square Emerald and diamonds halo classic ring- Dazzling 14K Natural Emeralds & Diamonds Creation
Category

2010s Modern Engagement Rings

Materials

Emerald, Diamond, 14k Gold

GIA Certified 3 Carat F Color IF Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
lies a breathtaking 3 carat emerald-cut diamond, boasting an F color grade that exudes a pure and icy
Category

2010s Italian Modern Engagement Rings

Materials

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

Type 2A Golconda GIA Certified 10 Carat Emerald Cut Diamond Solitaire Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA-certified 10 carat VVS1 D color emerald cut diamond. This breathtaking masterpiece boasts
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Art Deco Platinum Asscher Cut Diamond Engagement Ring 1.50ct
Located in Narberth, PA
This diamond engagement ring from the late Art Deco (ca1930s) era is a breathtaking beauty! Resting
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

5.95 Total Carat Green Emerald and Diamond Ladies Ring
Located in New York, NY
5.95 Total Carat Green Emerald and Diamond Ladies Ring -Metal Type: Platinum -4.15 Carat Radiant
Category

2010s American Engagement Rings

Materials

Diamond, Emerald, Platinum

Unheated Purple Sapphire Ring 2.17 Carat Radiant Natural No Heat
By Merkaba
Located in Beverly Hills, CA
ring, decorated with a pair of 0.58 carats, G color/VS2-SI1 clarity, French cut trapezoid diamonds, and
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, White Diamond, Multi-gemstone, Sapphire, Purple Sapphire, Platinum

1.44tcw 14K Natural Round Cut Emerald, Sapphire, Diamond Accent White Gold Ring
Located in Jupiter, FL
Celebrate an everlasting love with this exquisite emerald, diamond, and blue sapphire engagement
Category

2010s Zambian Engagement Rings

Materials

Diamond, Emerald, Sapphire, Gold, 14k Gold, White Gold

Diana M. GIA 5.04ct Emerald Cut Engagment Ring With 3.00ct Of Side Diamonds
By Diana M. Jewels
Located in New York, NY
Crafted in luxurious platinum, this enchanting engagement ring showcases a magnificent 5.04 carat
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Type IIA Golconda D Color GIA Certifield 6 Carat Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
outshining all else. Presenting a GIA Certified 6.08 Carat Emerald Cut Diamond Ring with flawless clarity
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

11 Carat Round Diamond Ring w Halo Radiant Cut Eternity Band GIA Certified G VS2
Located in New York, NY
AMAR -11 CARAT ROUND CUT DIAMOND ENGAGEMENT RING WITH HALO EMERALD CUT ETERNITY BAND BY MIKE NEKTA
Category

2010s American Engagement Rings

Materials

Diamond

Emerald and Yellow Diamond Ring
By Valentina Fine Jewellery
Located in Sai Kung District, HK
Beautiful Emerald and Yellow Diamond Ring made to order. Emerald will be between 2.80 - 3.50
Category

2010s Engagement Rings

Materials

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

2.13 carat Old European Cut Diamond M/VS1 GIA Vintage Engagement Ring
Located in New York, NY
. Surrounding this captivating center stone are additional old-cut diamonds, adding to the ring's vintage allure
Category

20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Art Deco Inspired Emerald Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired Emerald Diamond Platinum Ring. Featuring three rectangular step cut and two
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 10 Carat F VS1 Cushion Diamond Engagement Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Discover the pinnacle of diamond craftsmanship with this exceptional 10-carat cushion cut diamond
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

C. Dunaigre Certificate Colombian Emerald Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
captivating Colombian Emerald and Diamonds Ring, featuring a mesmerizing Colombian emerald weighing
Category

2010s Italian Modern Engagement Rings

Materials

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

Contemporary 2.08 ctw Ruby Diamond Engagement Ring, 18kt
Located in Miami, FL
Enchanting 1.53 Carat Emerald Cut Red Ruby Engagement Ring Capture the essence of love with this
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Ruby, 18k Gold

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Emerald Radiant Cut Engagement Rings For Sale on 1stDibs

Find an expansive variety of emerald radiant cut engagement rings available on 1stDibs. All of the items for sale were constructed with extraordinary care, often using gold, 18k gold and yellow gold. Our selection of items includes 23 vintage examples as well as 87 contemporary versions. Our inventory has long been popular, and it includes earlier versions that date to the 20th Century and newer variations that were made as recently as the 21st Century. There are many different pieces in our collection of emerald radiant cut engagement rings to choose from, but modern and Art Deco emerald radiant cut engagement rings are of considerable interest. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Antinori Fine Jewels, Alexander Beverly Hills and Roman Malakov are consistently popular. Today, if you’re looking for emerald cut emerald radiant cut engagement rings and are unable to find the perfect match, our selection also includes radiant cut and round cut alternatives. There aren’t many items for men in our collection of emerald radiant cut engagement rings, as most of the options available are for women.

How Much are Emerald Radiant Cut Engagement Rings?

Prices for emerald radiant cut engagement rings start at $1,400 and top out at $1,350,000 with these rings, on average, selling for $17,310.

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 Emerald Radiant Cut Engagement Rings
  • 1stDibs ExpertNovember 1, 2023
    Yes, emerald cut engagement rings are popular for those hoping to be betrothed. The emerald cut comprises 58 facets and truncated corners on a rectangular step-cut stone. The flat pavilion of an emerald-cut diamond can magnify the stone's imperfections, so the gem's clarity is key. Initially a popular cut for emeralds only, it is now used on other precious stones, but the name has come to define the style. The emerald cut became popular during the Art Deco period. Find emerald cut engagement rings on 1stDibs.