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30 Karat Diamond Ring

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Emerald Diamonds Cluster Ring 14 Karat .30 Carat
Located in New York, NY
carat natural round diamonds 14 karat yellow gold 2 grams Depth of ring 6 mm Size 6 and 1/4 we may
Category

2010s American Cluster Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

14 Karat White Gold Diamond Engagement Ring '.30 ct.'
Located in Washington Depot, CT
14 Karat White Gold Diamond Engagement Ring Size 6 (.30 ct.)- This sparkling engagement ring
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

.30 Carat Natural Diamonds Adjustable Ring 18 Karat Accordion Shank
Located in New York, NY
.30ct Round diamonds ring Adjustable wear Size 6-7. G- color Vs-2 clarity 5.6mm wide 5.7
Category

2010s American Band Rings

Materials

Diamond, 18k Gold, Yellow Gold

.30 Carat Natural Jet Black Onyx Diamonds Ring 18 Karat
Located in New York, NY
Greek Iconic Ring. Natural Jet Black Onyx, Sapphire Diamonds ring. .15ct Natural Cabochon Blue
Category

2010s American Solitaire Rings

Materials

Diamond, Onyx, Blue Sapphire, 18k Gold, Yellow Gold

1950s 0, 30 Carat Diamond 18 Karat Yellow Gold Solitaire Ring
Located in Poitiers, FR
Ring in 18 karat yellow gold, and platinum. The top of this antique ring presents a brilliant-cut
Category

Vintage 1950s French Retro Engagement Rings

Materials

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

14 Karat Rose Gold .30 Carat Natural Diamond Eternity Band Ring
Located in Baltimore, MD
14 Karat Rose Gold .30 Carat Natural Diamond Eternity Band Ring Metal: 14k rose gold Weight: 1.70
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, Rose Gold

.30 Carat Art Deco Diamond 14 Karat White Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 3.5 Metal Type: 14 karat White Gold [Hallmarked, and Tested] Weight: 3.0 grams Center
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, White Gold

1950s 0, 30 Diamond 18 Karat White and Rose Gold Retro Ring
Located in Poitiers, FR
Ring in 18 karat rose and white gold. This antique ring is set with a brilliant-cut diamond. On
Category

Vintage 1950s French Retro Engagement Rings

Materials

White Diamond, Diamond, White Gold, Rose Gold, 18k Gold, Gold

18 Karat Gold Ring with Huge 24 Carat Emerald and 30 Diamonds
Located in Berlin, DE
30 diamonds of approx. 0.05 carat each. The emerald has a weight of approx. 24 carats and a size of
Category

Late 20th Century Modern More Rings

Materials

Diamond, White Diamond, Emerald, 18k Gold

.30-Carat Green Aquamarines and Diamond Infinity Ring 14 Karat
Located in New York, NY
Infinity green aquamarine ring .30 carat natural green aquamarines .05 carat natural diamond 18
Category

2010s American Three-Stone Rings

Materials

Aquamarine, Diamond, 18k Gold, Yellow Gold

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

30 Carat Cabochon Colombian Emerald & Diamond 18 Karat Yellow Gold Cocktail Ring
Located in New York, NY
A classic, Cocktail ring Large size Colombian cabochon approximately 30 Carat Emerald and Diamond
Category

Early 2000s Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Gabriel & Co. 14 Karat White Gold .30 Carat Natural Diamond Wedding Band Ring
By Gabriel & Co.
Located in Baltimore, MD
Gabriel & Co. 14 Karat White Gold .30 Carat Natural Diamond Wedding Band Ring Metal: 14k white gold
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, White Gold

Tiffany & Co. Streamerica .30 Carat Round Diamond Band Ring 18 Karat White Gold
By Tiffany & Co.
Located in Scottsdale, AZ
and includes the original Tiffany ring box. Ring size: 7.5 Weight: 6.7 grams Natural Diamond: .30 ctw
Category

Early 2000s Contemporary Band Rings

Materials

Diamond, 18k Gold, White Gold

Diamond Flower Cluster Engagement Ring, .30 Carats in 14 Karat Rose Gold Lv
By Five Star Jewelry
Located in Austin, TX
Astonish your loved one with this beautiful rose gold diamond flower ring! The diamonds all
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 14k Gold, Rose Gold

Natural Type A Jade 30 Diamond Ring 18 Karat White Gold Wedding Engagement
Located in New York, NY
are accented by 30 sparkling Old Mine Cut White Diamonds set in a beautiful step down setting in 18
Category

Mid-20th Century Unknown Contemporary Engagement Rings

Materials

Jade, Diamond, Gold, 18k Gold, White Gold

30 Carat Pear Cut Opal and Diamond 14 Karat Gold Cocktail Ring, Estate
Located in New York, NY
Introducing a timeless cocktail ring featuring a stunning 30-carat pear-shaped opal and diamond
Category

2010s Cocktail Rings

Materials

Diamond, Opal, 14k Gold

9 Carat Aquamarine 30 Diamond Ring 18 Karat Gold Fancy Beveled Checkerboard Cut
Located in New York, NY
A spectacular Ring with a 9.0 Carat Fancy Beveled Checkerboard Cut Aquamarine surrounded by 30
Category

Mid-20th Century Unknown Contemporary Cocktail Rings

Materials

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

GIA 30 Carat Citrine Rose Diamond Halo Ring 14 Karat Gold Antique Belle Epoque
Located in New York, NY
sparkling Rose Cut Diamonds in a 14 Karat Rose Gold setting of great beauty. The magnificent statement ring
Category

Antique 19th Century Unknown Belle Époque Cocktail Rings

Materials

Citrine, Diamond, Gold, 14k Gold, Rose Gold

10 Karat White Gold Diamond Ring
Located in Washington Depot, CT
Vintage 10 Karat White Gold Diamond Ring Size 7- This sparkling ring features one round brilliant
Category

20th Century Cocktail Rings

Materials

Diamond, White Gold

.30 Carat Total Weight Diamond White Gold Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 7.25 Metal Type: 18 karat White Gold Weight: 3.2 grams Stone Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

14 Karat White Gold Diamond Ring
Located in Washington Depot, CT
14 Karat White Gold Diamond Ring Size 9- This sparkling ring features 30 princess cut diamonds
Category

20th Century Fashion Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat White Gold Diamond Ring
Located in Washington Depot, CT
14 Karat White Gold Diamond Ring Size 6.25- This stunning ring features three round brilliant cut
Category

20th Century Fashion Rings

Materials

Diamond, White Gold

Aquamarine Diamond 14 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
Sapphire and .30 carats of diamonds. The ring is a size 7 and may be resized to larger or smaller upon
Category

21st Century and Contemporary Unknown Contemporary Cocktail Rings

Materials

Aquamarine, Diamond, Multi-gemstone, Sapphire, Gold, 14k Gold

14 Karat White Gold Diamond Engagement Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold Diamond Engagement Ring Size 5.25- This sparkling ring features one
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

14 Karat White Gold and Diamond Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold and Diamond Ring Size 6- This sparkling ring features ten round
Category

20th Century Band Rings

Materials

Diamond, White Gold

Natural Diamond Ring 22.60 cts 18 Karat White Gold Ring, Luxury Diamond Ring
Located in Antwerpen, BE
The Baguette Diamonds ring is not only a symbol of luxury and high-end design but also a dazzling
Category

2010s Belgian Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

14 Karat White Gold and Diamond Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold and Diamond Ring Size 6.75 This elegant ring features one old mine cut
Category

20th Century Cocktail Rings

Materials

Diamond, White Gold

Tanzanite and Diamond 18 karat Gold Ring
Located in Jerusalem, IL
A Ring from the 1960's. Made in hallmarked 18 karat White Gold. The Central Stone is a 8 x 10 mm
Category

Late 20th Century Modern Cocktail Rings

Materials

Diamond, Tanzanite, Gold, 18k Gold

14 Karat White Gold and Diamond Ring
Located in Washington Depot, CT
14 Karat White Gold and Diamond Ring Size 6.25- This sparkling 14K white gold ring features two
Category

20th Century Fashion Rings

Materials

Diamond, White Gold

14 Karat White Gold Diamond Halo Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold Diamond Halo Ring Size 6.5- This sparkling ring features four princess
Category

20th Century Unknown Engagement Rings

Materials

Diamond, White Gold

14 Karat White Gold Diamond Ring Guard
Located in Scottsdale, AZ
Designer: Custom Material: 14K white gold Diamonds: 30 round brilliant cut = 0.30cttw Color: H
Category

21st Century and Contemporary Band Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat White Gold Diamond Engagement Ring
Located in Scottsdale, AZ
Certification: IGL J89772651IL Accent Diamonds: 30 round brilliant cuts = .16cttw Color: F/G Clarity: VS1-2 Ring
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat White Gold Diamond Engagement Ring
Located in Scottsdale, AZ
Diamonds: 30 round cut = .50cttw Color: G Clarity: VS Ring Size: 8 (please allow up to 2 additional
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Cartier 18 Karat Lapis Diamond Band Ring
By Cartier
Located in New York, NY
Vintage 18k gold lapis and diamond ring by Cartier circa 1970. The lapis and the diamonds oppose
Category

Vintage 1970s American Modern Band Rings

Materials

Diamond, 18k Gold

White Enamel Diamond 18 Karat Gold Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This enamel ring has been meticulously crafted from 18-karat rose gold and set with .30 carats of
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Diamond, Gold, 18k Gold, Enamel

14 Karat White Gold Diamond Cocktail Ring
Located in Wallkill, NY
Stunning Diamond ring set in 14K White Gold. Ring, center Diamond is approximately .30 carats, I
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, 14k Gold, White Gold

Natural Diamonds Ring 0.59 CT 18 Karat Gold Diamond Modern Cocktail Ring
Located in Antwerpen, BE
A natural diamond cluster split shank modern anniversary ring is a beautiful and versatile piece
Category

2010s Belgian Art Nouveau Cocktail Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

18 Karat White Gold Diamond Multi-Layer Ring
Located in Los Angeles, CA
This trendy multi-layer ring is crafted in 18-karat white gold, featuring 30 round white diamonds
Category

2010s American Cluster Rings

Materials

Diamond, White Gold

18 Karat White Gold Diamond Multi-Layer Ring
Located in Los Angeles, CA
This trendy multi-layer ring is crafted in 18-karat white gold, featuring 30 round white diamonds
Category

2010s American Cluster Rings

Materials

Diamond, White Gold

18 Karat White Gold Diamond Solitaire Illusion Ring
Located in Los Angeles, CA
This medium version of diamond solitaire illusion ring is crafted in 18-karat white gold, featuring
Category

2010s American Solitaire Rings

Materials

Diamond, White Gold

18 Karat White Gold Diamond Cluster Illusion Ring
Located in Los Angeles, CA
This trendy cluster snowflake illusion ring is crafted in 18-karat white gold, featuring 30 round
Category

2010s American Cluster Rings

Materials

Diamond, White Gold

.30 Carat Total Weight Diamond Yellow Gold and Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5.5 Metal Type: 14 karat Yellow Gold & Platinum [Hallmarked, and Tested] Weight: 2.2
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

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

Vintage 14 Karat White Gold and Diamond Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold and Diamond Ring Size 5.75- This sparkling ring features ten round
Category

20th Century Band Rings

Materials

Diamond, White Gold

14 Karat White Gold and Diamond Band Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold and Diamond Band Ring Size 7- This sparkling band features ten round
Category

20th Century Band Rings

Materials

Diamond, White Gold

Natural Diamond Ring 0.51 carats 18 Karat White Gold 5 Diamonds Engagement Ring
Located in Antwerpen, BE
0.51 carats, set in an 18-karat white gold band. The simplicity of the design enhances the ring
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

14 Karat White Gold and Diamond Engagement Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold Diamond Engagement Ring Size 4.5 This stunning ring features one
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

14 Karat White Gold Three-Stone Diamond Ring
Located in Washington Depot, CT
Vintage 14 Karat White Gold Three Stone Diamond Ring Size 6 This sparkling ring features three
Category

20th Century Cocktail Rings

Materials

Diamond, White Gold

10 Karat White Gold and Diamond Engagement Ring
Located in Washington Depot, CT
Vintage 10 Karat White Gold and Diamond Ring Size 5.75 This sparkling engagement ring features 13
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

10 Karat White and Yellow Gold Diamond Ring
Located in Washington Depot, CT
Vintage 10 Karat White and Yellow Gold Diamond Ring Size 6.75- This spectacular band features 62
Category

20th Century More Rings

Materials

Diamond, White Gold

1960s Golden Citrine Diamond 18 Karat Gold Ring
Located in New York, NY
30 bright white and sparkly brilliant cut diamonds measured to weigh approximately 1 carat. Ring size
Category

Vintage 1960s Cocktail Rings

Materials

Citrine, Diamond, 18k Gold

18 Karat White Gold Pave Diamond Engagement Ring
Located in Scottsdale, AZ
: SI1 Diamond: 30 round brilliant cut = 0.21cttw Color: H Clarity: SI2 Dimensions: ring top measures
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

14 Karat White Gold Diamond and Aquamarine Ring
Located in Washington Depot, CT
14 Karat White Gold Aquamarine and Diamond Ring Size 7 GAI Certified- This elegant band features
Category

20th Century Fashion Rings

Materials

Aquamarine, Diamond, White Gold

14 Karat Yellow Gold and Diamond Square Ring
Located in Washington Depot, CT
14 Karat Yellow Gold and Diamond Square Ring Size 8- This lovely 14K yellow gold ring features one
Category

20th Century Fashion Rings

Materials

Diamond, 14k Gold, Yellow Gold

14 Karat Yellow Gold Diamond Wedding Band Ring
Located in Washington Depot, CT
Vintage 14 Karat Yellow Gold Diamond Wedding Band Ring Size 6.5- This sparkling wedding band
Category

20th Century Unknown Wedding Rings

Materials

Diamond, Yellow Gold

Natural Diamond Ring 1.00cts 18 Karat White Gold 5 Round Diamond Solitaire Ring
Located in Antwerpen, BE
Diamonds *Guarantee: this item is guaranteed with a full refund return of 30 days and a manufacturing
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

LB Exclusive 18 Karat White Gold Diamond Ring
By LB Exclusive
Located in Southampton, PA
This LB Exclusive ring is crafted from 18K white gold and set with diamonds that amount to 3.85
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Natural Diamond Ring 1.80 cts 18 Karat White Gold Briolette Diamond Luxury Ring
Located in Antwerpen, BE
of diamonds, creating a striking focal point that commands attention. Wearing this ring is not just
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

1.30 Carat 14 Karat Gold Sunrise Diamond Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This ring has been meticulously crafted from 14-karat gold and set with 1.30 carats of sparkling
Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, 14k Gold, Gold

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30 Karat Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 30 karat diamond ring for your needs in our varied inventory. Each design created in this style — which was crafted with great care and often made from gold, 14k gold and white gold — can elevate any look. You can easily find a 2542 antique edition and 3025 modern creations to choose from as well. Making the right choice when shopping for a 30 karat diamond ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Creating a 30 karat diamond ring has been a part of the legacy of many jewelers, but those produced by Le Vian, SCALA GIOIELLI and Fabergé are consistently popular. A 30 karat diamond ring can be a stylish choice for most occasions, but diamond rings, from our inventory of 4056, can add a particularly distinctive touch to your look, day or night. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and brilliant cut cut versions available here, too. There aren’t many items for men if you’re seeking a 30 karat diamond ring, as most of the options available are for women and unisex.

How Much is a 30 Karat Diamond Ring?

The price for a 30 karat diamond ring starts at $120 and tops out at $379,000 with these rings, on average, selling for $3,401.

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.