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30 Carat Engagement Ring

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.30 Carat Diamond Swirl Platinum Engagement Ring
Located in Stamford, CT
Diamond Swirl design Platinum engagement ring. .30ct full cut center stone with 19 Ideal full cut
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

.30 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Brilliant Carat Weight: .30 carat Color: G Clarity: VS1 Side Stone Details: Shape: Antique Single Cut
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.30 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
1940's designed sapphire diamond ring. 1 round .30cts round sapphire setting platinum with 18 sing
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Platinum

.30 Carat Brown Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
Bezel set natural brown and white diamond engagement ring. 1 brown bezel set diamond with two round
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Brown Diamond, Gold, 14k Gold, Yellow Gold

.30 Carat Diamond Art Deco Filigree Platinum Engagement Ring
Located in Stamford, CT
Diamond platinum Art Deco engagement ring. Center diamond is bezel set on top of a filigree style
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Details: Weight: .30 carat Cut: Old European brilliant Color: I Clarity: VS Side Stone Details: Weight
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.65 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 3.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified .30 Carat Emerald Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
Emerald and diamond engagement ring. GIA certified oval green emerald center stone in a 14k yellow
Category

21st Century and Contemporary Engagement Rings

Materials

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

.30 Carat Total Weight Diamond White Gold Engagement Ring
Located in Atlanta, GA
: Shape: Old European Brilliant Total Carat Weight: .30 carat, total weight Color: F Clarity: SI1
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

.30 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams Center Stone Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.30 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.30 Carat Art Deco Diamond 14 Karat White Gold Engagement Ring
Located in Atlanta, GA
Diamond Details: Weight: .30 carat Cut: Old European brilliant Color: J Clarity: SI1 Side Stone Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, White Gold

.30 Carat Total Weight Diamond Yellow Gold and Platinum Engagement Ring
Located in Atlanta, GA
grams Diamond Details: Weight: .30 carat, total weight Cut: Old European Brilliant Color: G Clarity: VS
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold, Platinum

Diamond Flower Cluster Engagement Ring, .30 Carats in 14 Karat Rose Gold Lv
By Five Star Jewelry
Located in Austin, TX
original price of $2,650. The diamonds weigh a total of 0.30 carats. This ring is a size 6 and it can be
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 14k Gold, Rose Gold

30 Carat Fancy Intense Yellow Diamond Engagement Ring, In Platinum GIA Certified
Located in New York, NY
Exquisite 30-carat Fancy Intense Yellow Radiant-cut diamond engagement ring, GIA-certified as VVS2
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

14 Karat Yellow Gold .30 Carat Old European Brilliant Diamond Engagement Ring
Located in Atlanta, GA
Year: 1943 Item Details: Ring Size: 7.5 Metal Type: 14K Yellow Gold [Hallmarked, and Tested] Weight
Category

Vintage 1940s Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

.30 Carat Total Weight Victorian Diamond 14 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: 14K Yellow Gold [Hallmarked, and Tested] Weight: 3.6 grams Pearl: Natural
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

Diamond, Yellow Gold

1.53 Carat Diamond Engagement Ring
Located in Miami, FL
Stunning engagement ring crafted in platinum, showcasing a round brilliant cut diamond weighing
Category

2010s Unknown Modern Engagement Rings

Materials

Diamond, Platinum

EGL Certified 1.05 Carat Diamond Platinum Engagement Ring
Located in Stamford, CT
Diamond engagement ring. EGL certified center stone in a platinum halo setting with 60 round accent
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1.32 Carat Emerald Diamond Yellow Gold Engagement Ring
By DGI
Located in Los Angeles, CA
The Emerald Cut Natural Emerald weighs 0.98 carats and measures at 7 mm x 5 mm. Surrounded by 30
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

4.60 Carat Oval Aquamarine Diamond Platinum Engagement Ring
Located in Stamford, CT
Fantastic 1960's very bright soft blue natural aquamarine and diamond engagement ring. 4.60cts oval
Category

Mid-20th Century Engagement Rings

Materials

Aquamarine, Diamond, Platinum

1.00 Carat Sapphire Platinum Engagement Ring
Located in Atlanta, GA
: Antique Single Cut Total Carat Weight: .30 carat, total weight Color: G Clarity: VS Finger to Top of
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

Sapphire, Platinum

EGL Certified 1.15 Carat Diamond Platinum Engagement Ring
Located in Stamford, CT
Early 1900's exquisite EGL Certified diamond platinum engagement ring. Old European cut 1.15ct is
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

2.18 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Details: Weight: .30 carat, total weight Cut: Old European Brilliant Color: G Clarity: VS Finger to Top
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.80 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
: Weight: .30 carat Cut: Transitional Round, Straight Baguette Color: G Clarity: VS Finger to Top of Stone
Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.01 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

1.31 Carat Emerald Diamond White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
A beautiful & classic setting holding a Natural Emerald that weighs 0.76 carats. Surrounded by 30
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Emerald, White Gold, 18k Gold

GIA Certified 1.55 Carat Diamond Platinum Engagement Ring
Located in Stamford, CT
1900 platinum pierced, pave set diamond engagement ring. GIA certified center stone with 44 single
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

1.25 Carat European Cut Diamond Gold Engagement Ring
Located in Wallkill, NY
This is a wonderful Ring Circa 1930s that can be used as an engagement ring or just because. The
Category

Vintage 1930s Engagement Rings

Materials

Diamond, White Gold, Yellow Gold, Gold

Natural Diamond Ring 0.30 Carats 18 Karat Yellow Gold Engagement Ring
Located in Antwerpen, BE
engagement, love token, or promise ring for your beloved. Each diamond in this stunning cluster is hand
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

Natural Diamond Ring 0.30 Carats 18 Karat White Gold Engagement Ring
Located in Antwerpen, BE
engagement, love token, or promise ring for your beloved. Each diamond in this stunning cluster is hand
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond Ring 0.30 Carats 18 Karat Rose Gold Engagement Ring
Located in Antwerpen, BE
engagement, love token, or promise ring for your beloved. Each diamond in this stunning cluster is hand
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

GIA Certified .85 Carat Round Diamond Platinum Engagement Ring
Located in Stamford, CT
Original 1930's Art Deco diamond engagement ring. This ring begins with a dazzling .85ct round
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

.67 Carat Ruby Diamond Halo Platinum Ballerina Engagement Ring
Located in Stamford, CT
Oval ruby and diamond halo engagement ring. GIA certified .67 carat natural corundum oval center
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 5.51 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Wonderful oval 5.51 carat certified natural deep blue sapphire and diamond engagement ring. Mounted
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Natural Diamond Ring 0.25 carats 18 Karat Rose Gold Engagement Ring
Located in Antwerpen, BE
This minimalist white diamond ring embodies understated elegance with its simple cluster set design
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

Natural Diamond Ring 0.27 carats 18 Karat White Gold Engagement Ring
Located in Antwerpen, BE
This minimalist white diamond ring embodies understated elegance with its simple cluster set design
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

10.35 Carat Rectangle Aquamarine Ruby Diamond Platinum Engagement Ring
Located in Stamford, CT
Magnificat 1930's Aqua, ruby and diamond engagement ring. At the center of this Art Deco design is
Category

Early 20th Century Engagement Rings

Materials

Aquamarine, Diamond, Ruby, Platinum

0.96 Carat Champagne Brown Diamond White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
This beauty has a Round Cut Natural Brown Diamond that weighs 0.42 Carats and is surrounded by 30
Category

2010s American Contemporary Engagement Rings

Materials

Brown Diamond, 14k Gold, White Gold

Peter Suchy 1.00 Carat Diamond Rose Gold Engagement Ring
By Peter Suchy
Located in Stamford, CT
pear shaped diamond engagement ring. The stone is accented by 2 round brilliant cut side diamonds. The
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 14k Gold, Rose Gold

2.71 Carat Heart Cut Yellow Sapphire Diamond Engagement Ring
By DGI
Located in Los Angeles, CA
surrounded by a halo 30 Round Cut Diamonds that weigh 0.69 carats. The total carat weight of the ring is
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Sapphire, 14k Gold, Rose Gold

5.05 Carat Round Blue Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Round sapphire and diamond handmade engagement ring. Rich blue with a hint of purple round sapphire
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

1.50 Carat Oval Aquamarine Diamond Halo Gold Engagement Ring
Located in Stamford, CT
Vintage Mid 1950's Aquamarine and diamond engagement ring. This mid-century ring begins with a
Category

Mid-20th Century Engagement Rings

Materials

Aquamarine, Diamond, Gold, 18k Gold, White Gold

Natural Diamond Ring 0.55 Carats 18 Karats White Gold Statement Engagement Ring
Located in Antwerpen, BE
Experience elegance and sophistication with our 18k white gold diamond halo engagement ring
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

EGL Certified .75 Carat Diamond Three Stone Platinum Engagement Ring
Located in Stamford, CT
Beautiful Mid-Century 1950's diamond platinum engagement ring in its original setting. A .75 Carat
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Platinum

GIA Certified .94 Carat Emerald Cut Diamond Platinum Engagement Ring
Located in Stamford, CT
Emerald and baguette cut diamond engagement ring, in a handmade platinum setting circa 1980s. 1
Category

Vintage 1980s Engagement Rings

Materials

Diamond, Platinum

Peter Suchy 3.66 Carats Aquamarine Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
a secure and durable Aquamarine and Diamond halo platinum engagement ring. This beautiful ring
Category

21st Century and Contemporary Engagement Rings

Materials

Aquamarine, Diamond, Platinum

Peter Suchy 1.00 Carat Oval Diamond Solitaire Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Diamond engagement ring. GIA certified elongated brilliant cut oval 1.00ct center diamond, mounted
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

Peter Suchy GIA Certified 1.32 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Art Nouveau inspired diamond platinum Platinum engagement ring. The center Diamond is
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Gorgeous 1.42 carat natural GIA certified radiant cornered cut diamond engagement ring. At the
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Brown Diamond, Platinum

EGL Certified 2.07 Carat Diamond Art Deco Platinum Engagement Ring
Located in Stamford, CT
1930's Art Deco diamond engagement ring. EGL certified Old European cut 2.07ct diamond center stone
Category

Early 20th Century Engagement Rings

Materials

Diamond, Platinum

1.11 Carat Round Aquamarine Diamond Platinum Art Deco Engagement Ring
Located in Stamford, CT
Aqua and diamond engagement ring. Beautiful bright round aquamarine center stone measuring 1.11cts
Category

Mid-20th Century Engagement Rings

Materials

Aquamarine, Diamond, Platinum

GIA Certified 7.40 Carat Oval Spinel Diamond Platinum Engagement Ring
Located in Stamford, CT
Mid-Century beautiful spinel and diamond engagement ring. GIA Certified oval dark blue spinel in
Category

Mid-20th Century Engagement Rings

Materials

Diamond, Spinel, Platinum

GIA Certified 1.88 Carat Hexagonal Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
1920's 1.88 Carat Hexagonal Sapphire and Diamond Art Deco Platinum Engagement Ring. The centerpiece
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Purple Sapphire, 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

Peter Suchy 3.39 Carat Green Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy handmade platinum engagement ring with a no heat octagonal step cut green sapphire. GIA
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, Green Sapphire, Platinum

Tacori GIA Certified 2.07 Carat Sapphire Diamond Platinum Engagement Ring
By Tacori
Located in Stamford, CT
Tacori sapphire and diamond engagement ring. GIA certified rich cushion cut all-natural periwinkle
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

3.42 Carat Aquamarine Diamond Platinum Art Deco Crown Engagement Ring
Located in Stamford, CT
1930's Vintage Kings Crown design aquamarine and diamond ring. Round 3.42ct Aqua mounted in a
Category

Mid-20th Century Engagement Rings

Materials

Aquamarine, Diamond, Platinum

3.54 Carat Oval Garnet Diamond Halo Yellow Gold Engagement Ring
Located in Stamford, CT
Early 1900's Radiant and elegant, the 3.54 carat oval rhodolite garnet and diamond halo engagement
Category

Early 20th Century Engagement Rings

Materials

Diamond, Garnet, Rhodolite, Gold, 18k Gold, Yellow Gold

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30 Carat Engagement Ring For Sale on 1stDibs

You are likely to find exactly the 30 carat engagement ring you’re looking for on 1stDibs, as there is a broad range for sale. Frequently made of gold, 18k gold and white gold, this item was constructed with great care. Our collection of these items for sale includes 3350 vintage editions and 2250 modern creations to choose from as well. Finding the perfect 30 carat engagement ring may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing 30 carat engagement ring — no matter the origin — is easy, but Tiffany & Co., Antinori Fine Jewels and Jack Weir and Sons each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also old european cut cut and oval cut cut versions available here, too. When shopping for a 30 carat engagement ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 30 Carat Engagement Ring?

On average, a 30 carat engagement ring at 1stDibs sells for $6,974, while they’re typically $1 on the low end and $4,875,000 for the highest priced versions of this item.

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 30 Carat Engagement Ring
  • 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.