Skip to main content

25 Carat Diamond Ring

to
14
130
50
47
62
40
161
2
24
20
15
9
73
87
1
1
14
7
1
1
4
3
6
3
130
37
3
47
18
11
10
8
to
6
5
2
2
2
33
23
22
7
5
3
3
2
1
168
2
152
12
Sort By
.25 Carat Diamond Platinum Engagement Ring
.25 Carat Diamond Platinum Engagement Ring

.25 Carat Diamond Platinum Engagement Ring

Located in Hicksville, NY

Ring Size: 6 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3 grams Center Diamond

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.25 Carat Diamond White Gold Ring
.25 Carat Diamond White Gold Ring

.25 Carat Diamond White Gold Ring

Located in Bay Harbor Islands, FL

.25 Carat total weight diamond 18 Karat White Gold ring with 19 round cut diamonds. Metal Type: 18

Category

21st Century and Contemporary Unknown Band Rings

Materials

Diamond, 18k Gold, White Gold

.25 Carat Diamond Platinum 1940's Band Ring
.25 Carat Diamond Platinum 1940's Band Ring

.25 Carat Diamond Platinum 1940's Band Ring

Located in Stamford, CT

Vintage 1940's pieced scroll design .25 carat diamond platinum band ring. 22 round brilliant cut

Category

Mid-20th Century Band Rings

Materials

Diamond, Platinum

.25 Carat Diamond White Gold Engagement Ring
.25 Carat Diamond White Gold Engagement Ring

.25 Carat Diamond White Gold Engagement Ring

Located in Hicksville, NY

Item Details: Ring Size: 7 Metal Type: 18 Karat White Gold Weight: 1.9 grams Center Diamond

Category

Vintage 1920s Unknown Edwardian Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

HRD Certified 25 Carat Emerald Cut Diamond Platinum Ring
HRD Certified 25 Carat Emerald Cut Diamond Platinum Ring

HRD Certified 25 Carat Emerald Cut Diamond Platinum Ring

Located in Chicago, IL

25 Carat Round Brilliant Cut Diamond Platinum Solitaire Ring – HRD Certified Experience timeless

Category

2010s American Engagement Rings

Materials

Diamond, White Diamond, Platinum

25 Carat Star Sapphire Diamond Platinum Ring
25 Carat Star Sapphire Diamond Platinum Ring

25 Carat Star Sapphire Diamond Platinum Ring

Located in New York, NY

Platinum cocktail ring, with approx. 25-30ct star sapphire cabochon, surrounded with approx

Category

20th Century More Rings

Materials

Diamond, Star Sapphire, Platinum

.25 Carat Art Deco Diamond Platinum Engagement Ring
.25 Carat Art Deco Diamond Platinum Engagement Ring

.25 Carat Art Deco Diamond Platinum Engagement Ring

Located in Hicksville, NY

Diamond Details: Weight: .25 Carat Cut: Old European Brilliant Color: G Clarity: VS Ruby Details: Weight

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

25-Carat Fancy Intense Yellow Diamond Engagement Ring GIA Certified
25-Carat Fancy Intense Yellow Diamond Engagement Ring GIA Certified

25-Carat Fancy Intense Yellow Diamond Engagement Ring GIA Certified

Located in Victoria,, AU

25-Carat Fancy Intense Yellow Diamond Ring with Half Moon & Baguette Accents GIA Certified A

Category

2010s American Modern Engagement Rings

Materials

Yellow Diamond

.25 Carat Diamond Yellow Gold Art Nouveau Engagement Ring
.25 Carat Diamond Yellow Gold Art Nouveau Engagement Ring

.25 Carat Diamond Yellow Gold Art Nouveau Engagement Ring

Located in Stamford, CT

Handmade original Art Nouveau .25 carat rose cut diamond in a pierced and carved 18k yellow gold

Category

Antique Late 19th Century Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

25 Carat Star Sapphire Cabochon Platinum Diamond Ring
25 Carat Star Sapphire Cabochon Platinum Diamond Ring

25 Carat Star Sapphire Cabochon Platinum Diamond Ring

Located in New York, NY

Platinum cocktail ring, featuring center 25-30cts star sapphire cabochon , measuring 20.6 x 14.7 x

Category

20th Century More Rings

Materials

Diamond, Star Sapphire, Platinum

25-Carat J VVS1 Round Diamond Ring  GIA Certified
25-Carat J VVS1 Round Diamond Ring  GIA Certified

25-Carat J VVS1 Round Diamond Ring GIA Certified

Located in Mumbai, IN

Step into the world of majestic brilliance with this 25-carat J VVS1 round diamond ring, an

Category

21st Century and Contemporary Indian Empire Bridal Rings

Materials

Diamond, White Diamond, 18k Gold

Peter Suchy .25 Carat Diamond Platinum Eternity Wedding Band Ring
Peter Suchy .25 Carat Diamond Platinum Eternity Wedding Band Ring

Peter Suchy .25 Carat Diamond Platinum Eternity Wedding Band Ring

By Peter Suchy

Located in Stamford, CT

Alternative eternity diamond wedding band ring. 5 round brilliant cut diamonds set in a solid

Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, Platinum

.25 Carat Total Weight Diamond White Gold Engagement Ring
.25 Carat Total Weight Diamond White Gold Engagement Ring

.25 Carat Total Weight Diamond White Gold Engagement Ring

Located in Hicksville, NY

Center Diamond Details: Shape: Antique European Cut Carat Weight: .25 carat, total weight Color: F

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

.25 Carat Diamond Sapphire White Gold Dome Engagement Ring
.25 Carat Diamond Sapphire White Gold Dome Engagement Ring

.25 Carat Diamond Sapphire White Gold Dome Engagement Ring

Located in Stamford, CT

Vintage 1930's diamond and sapphire filigree engagement ring. Dome style with a old euro center

Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, White Gold

.25 Carat Pink Sapphire Diamond Etruscan Yellow Gold Ring
.25 Carat Pink Sapphire Diamond Etruscan Yellow Gold Ring

.25 Carat Pink Sapphire Diamond Etruscan Yellow Gold Ring

Located in Stamford, CT

Sapphire and diamond open work ring. Pink Oval sapphire in an open work 18k yellow gold Etruscan

Category

Late 20th Century Fashion Rings

Materials

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

.25 Carat Total Weight Diamond Platinum Engagement Ring
.25 Carat Total Weight Diamond Platinum Engagement Ring

.25 Carat Total Weight Diamond Platinum Engagement Ring

Located in Hicksville, NY

Ring Size: 6.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.1 grams Diamond Details

Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Natural 25 Carat Colombian Emerald Diamond White Gold Ring
Natural 25 Carat Colombian Emerald Diamond White Gold Ring

Natural 25 Carat Colombian Emerald Diamond White Gold Ring

Located in New York, NY

Magnificent Natural Colombian Emerald, weighing approximately 25 carats, set in a custom hand

Category

Vintage 1970s Engagement Rings

Materials

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

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

Located in Hicksville, NY

Diamond Details: Weight: .25 Carat Total Weight Cut: Old European Brilliant Color: G Clarity: VS Finger

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

Located in Hicksville, NY

Ring Size: 3 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Diamond Details

Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

Black Diamond Band, 14 Karat White Gold Ring, Eternity Ring, 14 Karat, .25 Carat
Black Diamond Band, 14 Karat White Gold Ring, Eternity Ring, 14 Karat, .25 Carat

Black Diamond Band, 14 Karat White Gold Ring, Eternity Ring, 14 Karat, .25 Carat

By Five Star Jewelry

Located in Austin, TX

White Gold Black Diamonds Diamond Carat Weight: .25 carat Size: 6.5 (can be ordered in other sizes

Category

2010s American Modern Band Rings

Materials

Diamond, Black Diamond, 14k Gold, White Gold

25 Carats Aquamarine Teardrop with Pave Diamonds Paradizia Ring
25 Carats Aquamarine Teardrop with Pave Diamonds Paradizia Ring

25 Carats Aquamarine Teardrop with Pave Diamonds Paradizia Ring

By Paradizia

Located in Laguna Beach, CA

Description Rare high domed cabochon pear shape cut Aquamarine in an impressive 25 carats framed by

Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Aquamarine, 14k Gold, Rhodium, Sterling Silver

GIA Certified 1, 25 Carats of Diamond on Solitaire Ring
GIA Certified 1, 25 Carats of Diamond on Solitaire Ring

GIA Certified 1, 25 Carats of Diamond on Solitaire Ring

Located in New Delhi, Delhi

So chic and minimal design for this solitaire in 18k gold with a pear cut diamond 1,25 carats, G

Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Diamond Alternating Eternity Ring, .25 Carats in 14k White Gold, Stacking Band
Diamond Alternating Eternity Ring, .25 Carats in 14k White Gold, Stacking Band

Diamond Alternating Eternity Ring, .25 Carats in 14k White Gold, Stacking Band

By Five Star Jewelry

Located in Austin, TX

carats diamonds are set in the band. A subtle and thoughtful feature on this ring is that one of the

Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

.25 Carat Total Weight Art Deco Diamond Platinum Engagement Ring

Located in Hicksville, NY

Ring Size: 6.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Diamond Details

Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.25 Carat Total Weight Victorian Diamond 14 Karat Rose Gold Opal Ring
.25 Carat Total Weight Victorian Diamond 14 Karat Rose Gold Opal Ring

.25 Carat Total Weight Victorian Diamond 14 Karat Rose Gold Opal Ring

Located in Hicksville, NY

grams Diamond Details: Weight: .25 carat total weight Cut: Antique Rose Cut Color: Mixed, J-K-L Clarity

Category

Antique 1890s Unknown Victorian Cocktail Rings

Materials

Diamond, Opal, Rose Gold

.25 Carat Total Weight Diamond Platinum and White Gold Engagement Ring
.25 Carat Total Weight Diamond Platinum and White Gold Engagement Ring

.25 Carat Total Weight Diamond Platinum and White Gold Engagement Ring

Located in Hicksville, NY

Ring Size: 4.25 Metal Type: Platinum & 14 karat White Gold Weight: 3.5 grams Center Diamond

Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Sapphire, Blue Sapphire, White Gold, Platinum

25-Carat D Flawless Type IIA Diamond Ring  GIA Certified Rare Investment-Grade
25-Carat D Flawless Type IIA Diamond Ring  GIA Certified Rare Investment-Grade

25-Carat D Flawless Type IIA Diamond Ring GIA Certified Rare Investment-Grade

Located in Mumbai, IN

Step into the world of ultimate rarity with this 25-carat D Flawless Type IIA round diamond ring, a

Category

21st Century and Contemporary Indian Empire Bridal Rings

Materials

Diamond, White Diamond, 18k Gold

.25 Carat Total Weight Art Deco Diamond 18 Karat White Gold Engagement Ring
.25 Carat Total Weight Art Deco Diamond 18 Karat White Gold Engagement Ring

.25 Carat Total Weight Art Deco Diamond 18 Karat White Gold Engagement Ring

Located in Hicksville, NY

Ring Size: 7.25 Metal Type: 18 karat White Gold [Hallmarked, and Tested] Weight: 2.5 grams Diamond

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, White Gold

GIA Certified 25 Carat Blue Sapphire & Round Diamond Halo Ring in Platinum
GIA Certified 25 Carat Blue Sapphire & Round Diamond Halo Ring in Platinum

GIA Certified 25 Carat Blue Sapphire & Round Diamond Halo Ring in Platinum

Located in Miami, FL

Vintage Art Deco inspired Blue Sapphire and Diamond cocktail ring. Blue Sapphire is or Sri Lanka

Category

1990s Sri Lankan Art Deco Cocktail Rings

Materials

Diamond, Blue Sapphire, Platinum

25 Carat Oval-Cut Citrine, Pearl and Diamond 14k Yellow Gold Cocktail Ring
25 Carat Oval-Cut Citrine, Pearl and Diamond 14k Yellow Gold Cocktail Ring

25 Carat Oval-Cut Citrine, Pearl and Diamond 14k Yellow Gold Cocktail Ring

Located in Miami, FL

: Citrine ✔ Center-Stone Weight: ~25 Carats ✔ Stone Cut: Oval ✔ Stone Color: Orange ✔ Ring: 14K, 27 Round

Category

20th Century Retro Cocktail Rings

Materials

Citrine, Diamond, White Diamond, Pearl, Freshwater Pearl, Gold, 14k Gold...

GRS Certified 25 Heart Shape Emerald Diamond Platinum Ring
GRS Certified 25 Heart Shape Emerald Diamond Platinum Ring

GRS Certified 25 Heart Shape Emerald Diamond Platinum Ring

Located in Chicago, IL

pave round diamonds. emerald weighing 25 carats Size 7 Platinum Accompanied by Grs report stating

Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Emerald, Platinum

14 Karat White Gold .25 Carat Half Diamond Thin Wedding Band Stackable Ring
14 Karat White Gold .25 Carat Half Diamond Thin Wedding Band Stackable Ring

14 Karat White Gold .25 Carat Half Diamond Thin Wedding Band Stackable Ring

Located in Baltimore, MD

14 Karat White Gold .25 Carat Half Natural Diamond Thin Wedding Band Stackable Ring Metal: 14k

Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, White Gold

25 Carat 18 Karat White Gold Round Cut Diamond Dome Cluster Cocktail Ring
25 Carat 18 Karat White Gold Round Cut Diamond Dome Cluster Cocktail Ring

25 Carat 18 Karat White Gold Round Cut Diamond Dome Cluster Cocktail Ring

Located in New York, NY

icy white diamonds totaling an impressive 25 carats. Crafted in classic 18K white gold, this luxurious

Category

20th Century Unknown Modern Cluster Rings

Materials

Diamond, White Gold

Art Deco .25 Carat Diamond Wedding Engagement Ring 18K and 14K White Yellow Gold
Art Deco .25 Carat Diamond Wedding Engagement Ring 18K and 14K White Yellow Gold

Art Deco .25 Carat Diamond Wedding Engagement Ring 18K and 14K White Yellow Gold

Located in New York, NY

spectacular approximately .25 Carat Diamond in a beautiful detailed setting in 18 Karat and 14 Karat White and

Category

20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold, 18k Gold, Yellow Gold

3.68 Carats Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring
3.68 Carats Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring

3.68 Carats Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring

By Meghna Jewels

Located in Hoffman Estate, IL

Ethiopian opal, .55 carats pink sapphire & .25 carats of sparkling diamonds. The ring is a size 7 and may

Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Gold, 14k Gold

Flower Diamond Band in Rose Gold W 25 Diamonds in a Floral Design SZ 6.5 sizable
Flower Diamond Band in Rose Gold W 25 Diamonds in a Floral Design SZ 6.5 sizable

Flower Diamond Band in Rose Gold W 25 Diamonds in a Floral Design SZ 6.5 sizable

By Five Star Jewelry

Located in Austin, TX

karat white gold or yellow gold or rose gold. Diamond total weight may vary with ring size. For orders

Category

2010s American Contemporary Fashion Rings

Materials

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

14K Yellow Gold and Diamond Engagement Wedding Ring
14K Yellow Gold and Diamond Engagement Wedding Ring

14K Yellow Gold and Diamond Engagement Wedding Ring

Located in Coeur d Alene, ID

14k yellow gold and .25 carat natural mined diamond ring. Center square stone and baguette cut

Category

Late 20th Century American Engagement Rings

Materials

Diamond, Yellow Gold

Heart Diamond 18 Karat Yellow Gold Ring
Heart Diamond 18 Karat Yellow Gold Ring

Heart Diamond 18 Karat Yellow Gold Ring

By Meghna Jewels

Located in Hoffman Estate, IL

This ring has been meticulously crafted from 18-karat gold and set with .25 carats of sparkling

Category

21st Century and Contemporary Unknown Modern Wedding Rings

Materials

Diamond, Gold, 18k Gold

Emerald Diamond 14 Karat Gold Honey Comb Ring
Emerald Diamond 14 Karat Gold Honey Comb Ring

Emerald Diamond 14 Karat Gold Honey Comb Ring

By Meghna Jewels

Located in Hoffman Estate, IL

& .25 carats of sparkling diamonds. The ring is a size 7 and may be resized to larger or smaller upon

Category

21st Century and Contemporary Unknown Modern Band Rings

Materials

Diamond, Emerald, Gold, 14k Gold

East to West Marquis Ruby and Diamond Ring Band
East to West Marquis Ruby and Diamond Ring Band

East to West Marquis Ruby and Diamond Ring Band

Located in Miami, FL

carat total weight in rubies .25 carat total weight in diamonds Ring size 6, can be sized.

Category

2010s American Contemporary Bridal Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Aquamarine Red Enamel Diamond 14 Karat Gold Spiral Ring
Aquamarine Red Enamel Diamond 14 Karat Gold Spiral Ring

Aquamarine Red Enamel Diamond 14 Karat Gold Spiral Ring

By Meghna Jewels

Located in Hoffman Estate, IL

, .25 carats of sparkling diamonds. The ring is a size 7 and may be resized to larger or smaller upon

Category

21st Century and Contemporary Modern Band Rings

Materials

Diamond, Aquamarine, Gold, Enamel, 14k Gold

Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring
Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring

Ethiopian Opal Pink Sapphire Diamond 14 Karat Gold Ring

By Meghna Jewels

Located in Hoffman Estate, IL

Ethiopian opal, 1.36 carats sapphire & .25 carats of sparkling diamonds. The ring is a size 7 and may be

Category

21st Century and Contemporary Unknown Modern Cocktail Rings

Materials

Diamond, Opal, Pink Sapphire, Gold, 14k Gold

25 Carat Aquamarine Diamond Gold Cocktail Ring
25 Carat Aquamarine Diamond Gold Cocktail Ring

25 Carat Aquamarine Diamond Gold Cocktail Ring

Located in Bellevue, WA

This stunning aquamarine cocktail ring features a centered emerald cut 25 carat natural aquamarine

Category

Mid-20th Century Retro Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold, Yellow Gold

25 Carat Star Ruby Baguette Diamond Platinum Ring
25 Carat Star Ruby Baguette Diamond Platinum Ring

25 Carat Star Ruby Baguette Diamond Platinum Ring

Located in Scottsdale, AZ

This rare and fabulous ring will put stars at your fingertips and stars in your eyes!! It features

Category

21st Century and Contemporary Unknown Fashion Rings

Materials

Diamond, Ruby, White Diamond, Platinum

Platinum 25 Carat Turquoise Solitaire Ring with 1.10 Carat Diamonds, Size 6.25
Platinum 25 Carat Turquoise Solitaire Ring with 1.10 Carat Diamonds, Size 6.25

Platinum 25 Carat Turquoise Solitaire Ring with 1.10 Carat Diamonds, Size 6.25

Located in Sherman Oaks, CA

Gorgeous, richly blue turquoise cabochon solitaire ring. Features a 25 carat turquoise set in

Category

21st Century and Contemporary Unknown Modern Solitaire Rings

Materials

Diamond, Turquoise, Platinum

Vintage Diamond Cocktail Ring in 25 Carat Opal, 1975
Vintage Diamond Cocktail Ring in 25 Carat Opal, 1975

Vintage Diamond Cocktail Ring in 25 Carat Opal, 1975

Located in Kendal, GB

A spectacular 1970s cocktail ring boasting a magnificent natural opal cabochon weighing approx

Category

20th Century Cocktail Rings

Materials

Opal, Diamond, Gold

3.19 Carat Diamond 25 gr 18k Rose Gold Cocktail Ring
3.19 Carat Diamond 25 gr 18k Rose Gold Cocktail Ring

3.19 Carat Diamond 25 gr 18k Rose Gold Cocktail Ring

By Ena Iro

Located in Geneva, CH

3.19 Carat Diamond 25 gr 18k Rose Gold Cocktail Ring This magnificent ring is made of 18k rose

Category

21st Century and Contemporary Italian Cocktail Rings

Materials

Diamond, 18k Gold, Rose Gold

TATE Joined Matte Platinum .25 Carat Diamond and .69 Carat Sapphire Ring
TATE Joined Matte Platinum .25 Carat Diamond and .69 Carat Sapphire Ring

TATE Joined Matte Platinum .25 Carat Diamond and .69 Carat Sapphire Ring

By TATE

Located in New York, NY

Matte Platinum Diamond & Sapphire Ring Diamond .25ct Sapphire .69ct Approximately 3/8" X 1/4

Category

2010s American Modern Engagement Rings

Materials

Diamond, Sapphire, Platinum

Victorian Diamond Question Mark 14 Karat Gold .25 Carat Minecut Conversion Ring
Victorian Diamond Question Mark 14 Karat Gold .25 Carat Minecut Conversion Ring

Victorian Diamond Question Mark 14 Karat Gold .25 Carat Minecut Conversion Ring

Located in Crownsville, MD

featuring a minecut .25 carat diamond. 14K solid gold ring shank and question mark. In excellent condition

Category

Antique Late 19th Century British Victorian Fashion Rings

Materials

Diamond, 14k Gold

  • 1
Get Updated with New Arrivals
Save "25 Carat Diamond Ring", and we’ll notify you when there are new listings in this category.

25 Carat Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 25 carat diamond ring for your needs in our varied inventory. Frequently made of Gold, 14k Gold and White Gold, this item was constructed with great care. Our collection of these items for sale includes 541 vintage editions and 793 modern creations to choose from as well. If you’re looking for a 25 carat diamond ring from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Finding an appealing 25 carat diamond ring — no matter the origin — is easy, but LB Exclusive, Tiffany & Co. and TJD 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 oval cut cut and old european cut cut versions available here, too. When shopping for a 25 carat diamond ring, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 25 Carat Diamond Ring?

Prices for a 25 carat diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $210 and can go as high as $3,350,000, while this accessory, on average, fetches $3,503.

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 25 Carat Diamond Ring
  • 1stDibs ExpertSeptember 28, 2021
    The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.
  • 1stDibs ExpertNovember 2, 2023
    There is no rule for how many carats a diamond wedding ring should be. You're free to choose a ring with a carat weight that appeals to you and fits your budget. The average carat weight for diamond wedding rings is 1 to 1.9 carats. Shop an assortment of diamond wedding rings on 1stDibs.
  • 1stDibs ExpertFebruary 1, 2024
    Elizabeth Taylor's famous diamond ring was 33.19 carats. Although many people believe the Krupp diamond ring was an engagement gift, Richard Burton actually bought the gorgeous Asscher-cut ring to mark their five-year anniversary. For their engagement, Burton presented Taylor with an 18.61-carat emerald and diamond pendant made by Bulgari. The pendant detached from its necklace and could double as a brooch. Explore a large selection of diamond rings on 1stDibs.