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Rare Carat Engagement Rings

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Rare Russian Alexandrite Platinum Engagement Ring
Located in Chicago, IL
This contemporary custom-made platinum ring features a rare 0.43 carat pear shape Russian
Category

21st Century and Contemporary Engagement Rings

Materials

Alexandrite, Platinum

Rare Russian Alexandrite Gold Engagement Ring
Located in Chicago, IL
This contemporary custom-made 18K gold ring features a rare 0.63 carat pear shape Russian
Category

21st Century and Contemporary Engagement Rings

Materials

Alexandrite, Chrysoberyl, Gold, 18k Gold

1.87 Carat Round Cut Rare Russian Green Emerald and Diamond Engagement Ring
By Roman Malakov
Located in New York, NY
Elegantly made three stone engagement ring showcasing a rare vibrant green emerald weighing 1.87
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

Rare 5 Carat Cushion Brilliant Cut GIA Certified Engagement Ring
By Diamond Scene
Located in New York, NY
information on this incredible ring.
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Diamond

5.59 carat Diamond Engagement Ring
Located in New York, NY
A classic 1930s engagement/solitaire ring featuring a rare type II A old-cut diamond weighing 5.59
Category

Vintage 1930s Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 6.81 Carat Rare Natural Old European N VS1 Diamond Engagement Ring
Located in Los Angeles, CA
Platinum solitaire ring (size 5.5) set with a rare vintage GIA certified Old European Brilliant
Category

Vintage 1920s Unknown Retro Engagement Rings

Materials

Diamond, Platinum

Orchid Cut Flower Star Rare Engagement Ring with Ring Guard
Located in Hertsliya, IL
If you are looking for a truly exception engagement ring, our Orchid Cut Diamond Engagement Ring
Category

2010s Israeli Contemporary Engagement Rings

Materials

Diamond, Yellow Gold, White Gold, Rose Gold, 14k Gold

GIA Certified 5.01 Carat Yellow Cushion Diamond Engagement Ring
Located in PARIS, FR
engagement. New ring Main diamond: Fancy Intense Yellow 5.01 carats VS2 GIA Side Diamonds: Colorless
Category

2010s Asian Modern Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold

Cartier 6.71 carat Cushion Brilliant Diamond Platinum Engagement Ring
By Cartier
Located in New York, NY
An exquisite ring by Cartier that is a part of history! In the 1940s, Monture Cartier pieces were
Category

Mid-20th Century French Engagement Rings

Materials

Diamond

Rare 7.63 Carat No Heat Burmese Sapphire Ring
Located in Nantucket, MA
This new and exceptional 7.63 carat no heat Burmese sapphire is set in a handmade platinum setting
Category

2010s Burmese Modern Engagement Rings

Materials

Sapphire, Platinum

RARE 4ct Natural Emerald & Diamond Engagement Ring in Platinum
Located in Miami, FL
Forged in platinum, this captivating engagement ring boasts a majestic 4-carat cushion-cut emerald
Category

21st Century and Contemporary European Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

1.66 Carat Pink Sapphire Diamond White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
This beautiful ring has a Oval Cut Pink Sapphire that weighs 1.12 Carat. The Pink Sapphire has a
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, 14k Gold, White Gold

GIA Certified 5 Carat Emerald Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Rome, IT
love or a testament to personal achievement, this 5-carat emerald-cut diamond ring is sure to leave a
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

Fancy Light Green Diamond ring 18KT white gold Rare engagement ring
Located in Boca Raton, FL
One of a kind engagement ring made with one single fancy light green diamond and a halo of white
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Rare oval diamond engagement ring 3.03ct GIA certified diamond
Located in Boca Raton, FL
Huge oval engagement ring in 18KT white gold, the center diamond is a stunning 3.03 carats SI2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

J. Birnbach 5.01 Carat Antique Cushion Brilliant Diamond Engagement Ring
By J. Birnbach
Located in New York, NY
Perfect for the romantic in your life, this gorgeous engagement ring by J. Birnbach features a rare
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Art Deco 2.20 Carat Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Art Deco 2.20 carat old European cut diamond platinum engagement ring, circa 1930s. Are you
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

14.67 Carat Blue Sapphire and Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
This wonderful and rare three-stone engagement ring featuring 14.67 carat cushion cut blue sapphire
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

18k Pink Diamond Ring, 1.50 Carat Oval Checkerboard Diamond Engagement Ring 18ky
By Five Star Jewelry
Located in Austin, TX
engagement ring is a living art piece. With a 1.54 carat rough diamond set East to West in a 18 karat yellow
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

4.54 Carat Emerald Cut Diamond Platinum Engagement Ring
Located in Greenwich, CT
Clear, cool, and white as ice, this 4.54 carat emerald cut diamond engagement ring sparkles with
Category

2010s American Contemporary Engagement Rings

GIA Certified 4.12 Carat Green Diamond Three Stone Engagement Ring
Located in PARIS, FR
diamond makes this ring rare, unique and very original New ring Main diamond: Fancy Grayish Yellowish
Category

21st Century and Contemporary Hong Kong Classical Roman Engagement Rings

Materials

Diamond, 18k Gold

5 Carat Paraiba Tourmaline Sugarloaf Cabochon Engagement Ring
Located in Santa Barbara, CA
The Pedrina 5 carat Paraiba tourmaline engagement ring is absolutely incredible. A rare and
Category

2010s Art Deco Engagement Rings

Materials

Diamond, Tourmaline, Paraiba, 18k Gold, White Gold

Estate 10 Carat Sri Lanka Sapphire Engagement Ring
Located in Santa Barbara, CA
An important 10 carat sapphire engagement ring boasting a most desirable, open and tranquil crystal
Category

Vintage 1970s Contemporary Engagement Rings

Materials

Blue Sapphire, Sapphire, Diamond, Platinum

GIA 3.18 Carat Natural White Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
1940's Colorless sapphire and diamond three-stone engagement ring. GIA certified octagonal corner
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

Russian 2.33 Carat Demantoid Diamond Gold Engagement Ring
Located in Chicago, IL
diamonds. The demantoid measures 9.75 x 6.71 x 4.30 mm. Russian demantoids over 2 carats are rare. Ring
Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Garnet

Tiffany & Co. 2.08 carat Round Diamond Platinum Solitaire Engagement Ring
By Tiffany & Co.
Located in New York, NY
The ultimate, quintessential classic is a Tiffany solitaire engagement ring. This gorgeous platinum
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, White Diamond, Platinum

J. Birnbach 8.50 carat Cushion Brilliant Diamond Solitaire Engagement Ring
By J. Birnbach
Located in New York, NY
This gorgeous antique cushion brilliant is a rare treasure from the J. Birnbach vault. The diamond
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 18k Gold, Platinum

Peter Suchy 4.55 Carat Oval Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Extremely bright light medium periwinkle blue sapphire and pave diamond engagement ring. Custom
Category

21st Century and Contemporary Engagement Rings

Materials

Sapphire, Blue Sapphire, Diamond, Platinum

5.20 Carat Paraiba Tourmaline and Diamond Engagement Ring
By Royaal Stones Ltd
Located in Bangkok, Thailand
A stunning 5.20 carat Paraiba Tourmaline center stone, surrounded by 1.71 carat White Diamonds all
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Tourmaline, Paraiba, Gold, 18k Gold, White Gold

Issac Nussbaum 2.02 Carat Pink Diamond Engagement Ring
By Issac Nussbaum
Located in New York, NY
carats and is a rare cushion shape stone with a vs2 clarity fancy brown pink with pink being the
Category

2010s American Modern Engagement Rings

Materials

Pink Diamond

GIA Certified 14.18 Carat Emerald Cut Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
A rare and spectacular engagement ring showcasing a 14.18 carat emerald cut diamond center stone
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GRS Certified 2.11 Carat Padparadscha Sapphire Diamond Platinum Engagement Ring
Located in Los Angeles, CA
sapphire 2.11 carats certified by GRS is the perfect choice for you. Natural pink sapphires are generally
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Sapphire, Padparadscha Sapphire , Platinum

GIA Certified 7.60 Carat Round Diamond Engagement Ring
By M&V Vanguard Jewelry
Located in New York, NY
F- G color VS1-VS2 clarity Design of the ring is one of a kind that you won`t see anywhere else! A
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3.50 Carat E VS1 Round Diamond Engagement Ring "Jazmina"
Located in New York, NY
Introducing "Jazmina," a ring of unparalleled elegance, centered with a GIA Certified 3.50 Carat
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

2.68 Carat GIA Old European Cut Diamond Platinum Deco Engagement Ring
Located in Tampa, FL
2.68 Carat GIA Old European Cut Diamond Platinum Deco Engagement Ring This immaculate example of a
Category

Vintage 1920s American Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3.50 Carat E SI1 Pear Diamond Engagement Ring "Landress"
Located in New York, NY
ring is crowned with a GIA Certified 3.50 Carat Pear Diamond, distinguished by its E color rating that
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

GIA Certified 25.32 Carats Emerald Cut Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
An important and very rare engagement ring showcasing a 25.32 carats emerald cut diamond certified
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

J. Birnbach 1.79 carat Antique European Cut Diamond Solitaire Engagement Ring
By J. Birnbach
Located in New York, NY
This gorgeous solitaire engagement ring is a timeless and romantic piece. The 1.79 carat antique
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 2.15 Carat Burma Octagonal Ruby Diamond Platinum Engagement Ring
Located in Stamford, CT
Rare and unusual elongated emerald cut natural Burma, Myanmar, ruby and diamond ring. The center
Category

Late 20th Century Engagement Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 1.01 Carat Brown Orange Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Art Deco Platinum 1940's platinum engagement ring with an all natural no heat orange Sapphire with
Category

Vintage 1940s Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 1.02 Carat Brown Orange Sapphire Diamond Engagement Platinum Ring
Located in Stamford, CT
1940's Sapphire and diamond engagement ring. GIA certified, natural, no heat, brown orange center
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

GIA Certified 1.12 Carat Green Yellow Round Diamond Platinum Engagement Ring
Located in Stamford, CT
Diamond engagement ring. Round Ideal cut center stone with pave set diamond shoulders in a platinum
Category

Late 20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Certified 22.62 Carat Cushion Cut Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
A rare diamond ring showcasing an enormous scintillating 22.62 carat cushion cut diamond certified
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 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

GIA Certified 4 Carat Three Stone Emerald Cut Diamond Engagement Ring
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified 4.14 carat Diamond with an emerald cut set in four pointed prongs. The center diamond
Category

2010s Italian Modern Engagement Rings

Materials

Emerald, White Diamond, Diamond, Platinum

GIA Certified 2.34 Carat Rare Natural Padparadscha Sapphire Diamond Ring
By Hand Made
Located in Los Angeles, CA
Sapphire Ring. The centerpiece, an ultra-rare unheated and completely natural radiant-cut Padparadscha
Category

2010s Engagement Rings

Materials

Diamond, Sapphire, Padparadscha Sapphire , 14k Gold, Rose Gold

0.47 Carat Pear Shape Fancy Intense Purplish Pink Diamond Engagement Ring
By Roman Malakov
Located in New York, NY
Well crafted and rare engagement ring featuring a colorful and vibrant 0.47 carat pink diamond that
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Pink Diamond, 18k Gold, Platinum

GIA Certified 1.07 Carat Oval Fancy Yellow Diamond Platinum Engagement Ring
Located in Stamford, CT
1960's Fancy oval yellow diamond engagement ring. 1.07ct GIA certified fancy yellow oval diamond in
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

Peter Suchy 1.60 Carat Blue Violet Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Natural no heat AGL certified bluish violet 1.60ct oval Sapphire engagement ring, in a
Category

Early 2000s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 16.25 Carat Oval Cut Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
This elegant and rare piece of high end jewelry featuring 16.25 carat oval cut diamond certified by
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

1.13 Carat Natural No Heat Burma Sapphire Platinum Solitaire Engagement Ring
By Gem and Honey
Located in New York, NY
A classic solitaire engagement ring by Gem + Honey, set with a rectangular, step-cut, natural (no
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Sapphire, Blue Sapphire, Platinum

GIA 2.41 Carat Green Blue Oval Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Blue and green sapphire and baguette engagement ring. This unique GIA certified oval center
Category

Late 20th Century Engagement Rings

Materials

Green Sapphire, Blue Sapphire, Diamond, Sapphire, Platinum

Natural Rare Emerald Diamond 18k Yellow Gold Engagement Ring for Women
By VR Jewels
Located in Houston, TX
Natural Rare Emerald Diamond Engagement Ring in 18K Gold featuring natural emerald of 2.27 carats
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

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

GIA Certified 8.94 Carat Old Mine Cushion Diamond Pave Engagement Ring
By Roman Malakov
Located in New York, NY
A spectacular and rare diamond cut weighing 8.94 carats. GIA certified the center diamond as an old
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA 1.15ct Rare Fancy Yellowish Green Diamond Engagement Ring, Diamond Halo
Located in New York, NY
This engagement ring features a rare and certified 1.15-carat Fancy Yellowish Green diamond with
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

White Diamond, Platinum

GIA Certified 6 Carat E VS2 Oval Diamond Solitaire Engagement Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
Introducing an engagement ring of extraordinary beauty featuring a GIA-certified 6-carat diamond
Category

2010s Unknown Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 3.87 Carats Radiant Cut Fancy Yellow Diamond Engagement Ring
By Roman Malakov
Located in New York, NY
Rare and color rich engagement ring featuring a vibrant 3.87 carats elongated radiant cut diamond
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

3.57 Carat Pink Sapphire Diamond Platinum Scroll Three Stone Engagement Ring
Located in Stamford, CT
Three stone sapphire diamond engagement ring. This beautiful setting came to us with gemstones we
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Pink Sapphire, Platinum

GIA Certified 17.25 Carat Intense Yellow Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
Rare and color rich three-stone engagement ring featuring a vibrant 17.25 carat elongated radiant
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

2.38 Carat Natural Purple Brown Sapphire Trilliant Gold Diamond Engagement Ring
Located in Stamford, CT
Sapphire and diamond engagement ring. GIA certified oval purple/ brown natural no heat, no
Category

Late 20th Century Engagement Rings

Materials

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

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Rare Carat Engagement Rings For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of rare carat engagement rings. These distinct designs — crafted with great care and often made from gold, platinum and 18k gold — can elevate any look. Find a collection of 964 vintage versions or 1464 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 21st Century. The designs in our inventory of rare carat engagement rings bearing contemporary or modern hallmarks are very popular. Antinori Fine Jewels, Tiffany & Co. and David Rosenberg each produced beautiful examples of these items that are worth considering. Browse our collection of 1826 diamond versions today to add the perfect touch to your look. A selection of cushion cut, oval cut and emerald cut can be found today on these pages. If you’re browsing the variety of rare carat engagement rings for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are Rare Carat Engagement Rings?

Prices for rare carat engagement rings start at $260 and top out at $6,375,000 with these rings, on average, selling for $13,411.

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 Rare Carat Engagement Rings
  • 1stDibs ExpertNovember 14, 2023
    The most popular carat size for engagement rings varies from country to country. In the US, the average size is around one carat. However, engagement rings tend to be smaller in other places. For example, the average is 0.6 carats in the UK and around 0.5 carats in western Europe. On 1stDibs, shop a diverse assortment of engagement rings.
  • 1stDibs ExpertMarch 3, 2023
    Whether 2-carat is a good size for an engagement ring is a matter of personal opinion. Due to its size, a 2-carat gemstone will likely stand out and get noticed. However, some people prefer smaller engagement rings, especially if they work with their hands. Carat weight is also not the most important signifier of a stone’s value. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. On 1stDibs, shop a collection of engagement rings.