25 Carat Diamond Engagement Ring

3 Carat Cushion Diamond Platinum

25 Carat Rose Cut Diamond

12 Carat Platinum Engagement Ring

1920 Cushion Cut Diamond Ring

Tjd Jewelry

3 Carat Cushion Cut Engagement Ring

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

$2,100 / item

TJD 0.50 Carat Brilliant Cut Diamond 14 Karat Rose Gold Engagement Ring

By TJD

Located in New York, NY

A radiant symbol of your commitment, this diamond engagement ring captures the beauty of life’s most meaningful moments. Expertly crafted in 14 karat rose gold, it features 26 natura...

Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, Gold, 14k Gold, Rose Gold

TJD 0.33 Carat Natural Round Diamond 14 Karat Yellow Gold Engagement Ring

$1,900 / item

$25,995

$10,000

Edwardian Diamond Platinum Ring 3.5 Carat Navette Wedding Engagement Cocktail

Located in New York, NY

A dramatic Antique Edwardian Diamond Ring in Platinum with 3.5 Carats of spectacular G color (white white white) and VS clarity (clean) Old European Cut Diamonds. This monumental an...

Category

Antique Early 1900s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Recent Sales

Antique Engagement Ring .25 Carat Diamond and 18 Karat White Gold, J36180

Unavailable

Antique Engagement Ring .25 Carat Diamond and 18 Karat White Gold, J36180

Located in Tampa, FL

An intricately designed and filigreed antique engagement ring featuring a .25ct. apx. European cut center diamond with VS1 clarity and I color. Take a close look at the filigree whic...

Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, 18k Gold, White Gold

2.16 Carat Pink Tourmaline Diamond Engagement Ring

Unavailable

2.16 Carat Pink Tourmaline Diamond Engagement Ring

By Michael von Krenner

Located in Austin, TX

2.16 Carat Pink Tourmaline Diamond Engagement Ring. This beautiful Spinning Halo Bow ring has an intense pink Tourmaline set in the center, it weighs 2.16 cts.

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Pink Sapphire, Tourmaline, 14k Gold, Rose Gold

Unavailable

Unavailable

Unavailable

.50 Carat Sapphire Diamond Platinum Ring

Located in Carmel, CA

A lovely .50 carat sapphire sits at the center of this vintage style platinum ring. The center sapphire is surrounded by a total of .25 carats of diamond and the ring is currently si...

Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Unavailable

Unavailable

Unavailable

Crystal Haze Tablet Twister Slim Ring - 18 Carat Yellow Gold

By Stephen Webster

Located in London, GB

‘CH2’ celebrates 25 years of the Crystal Haze effect created by Stephen Webster. The pioneering technique of layering faceted Quartz with a wide variety of vibrant gemstones brings a...

Category

2010s British Contemporary Engagement Rings

Materials

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

1.25 Ct. Fancy Yellow Canary Cushion Cut Diamond Ring SI1 GIA Certified

Unavailable

1.25 Ct. Fancy Yellow Canary Cushion Cut Diamond Ring SI1 GIA Certified

Located in Los Angeles, CA

This beautiful canary diamond engagement ring flaunts a 1.00 Ct. Fancy Yellow Cushion cut diamond with SI1 clarity.

Category

2010s American Engagement Rings

Diamond, Platinum

Berca 3.33 Karat IGI Certified Aquamarine Oval Sapphire Diamond Cocktail Ring

Unavailable

Berca 3.33 Karat IGI Certified Aquamarine Oval Sapphire Diamond Cocktail Ring

By Berca Atelier

Located in Valenza, IT

One-of-a-kind 3.33 Carat, IGI March 25 2022 Certified, Cushion Mixed Cut Natural Brazilian Aquamarine(11.66x7.31x5.83mm) in a Chic yet Timeless two 1.21 Carat Natural Ceylon Oval Blu...

Category

21st Century and Contemporary Italian Contemporary Engagement Rings

Materials

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

1.49 Round Diamond GIA Cert Set in Platinum Heart Mounting

Unavailable

1.49 Round Diamond GIA Cert Set in Platinum Heart Mounting

Located in Wynnewood, PA

This gorgeous mounting was made with attention to detail. The 1.49 Round Brilliant diamond is a GIA certified H/SI1 # 1142742811. It has one heart shaped diamonds on each shoulder ...

Category

21st Century and Contemporary Engagement Rings

Diamond, Platinum

18 Karat White Gold Ruby Diamond Engagement Legacy Cabochon Solitaire Ring

Unavailable

Unavailable

Marcel Salloum V Shaped Sky Blue Princess Cut Diamond Ring

By Marcel Salloum

Located in London, London

V Shaped Sky Blue Princess Cut Diamond and Platinum Ring. It's suitable worn as an every day ring on its own, stacked against other rings or a wedding ring against an engagement ring.

Category

2010s British Contemporary Wedding Rings

Materials

Materials

Diamond, Yellow Gold

Carrera y Carrera 18 Karat Yellow Gold Women's Profile, 0.32 Carat Diamond Ring

$5,900

Carrera y Carrera 18 Karat Yellow Gold Women's Profile, 0.32 Carat Diamond Ring

By Carrera y Carrera

Located in New York, NY

Carrera Y Carrera has built its its famous name on figurative designs, an obsession with surface finishes, and a compelling way of seeing beauty in art and nature. This 18 karat yell...

Category

1990s Spanish Art Nouveau Band Rings

Materials

Diamond, 18k Gold, Yellow Gold

Art Deco Diamond, 18 Carat Gold and Platinum Five-Stone Panel Ring

$658

Art Deco Diamond, 18 Carat Gold and Platinum Five-Stone Panel Ring

Located in Chipping Campden, GB

In classic Art Deco style this five stone diamond ring is made up of squares and panels of platinum. The old European cut diamonds total 25pts and are set upon an open work gallery. ...

Category

Vintage 1920s British Art Deco More Rings

Materials

Diamond, Gold, Platinum

Angela Cummings 18K Yellow Gold Sinuous Snake Ring

$2,550

$179,999

$12,000 / item

1.30ct Antique Cushion Cut Diamond Solitaire Engagement Ring in 18ct Yellow Gold

Located in Brisbane, AU

Boldly sculptural and effortlessly refined. This extraordinary elongated cushion-cut antique diamond is held within OHLIGUER's signature Reef Knot. Bold, sculptural curves transform ...

Category

21st Century and Contemporary Contemporary Engagement Rings

Materials

Diamond, Yellow Gold

Get Updated with New Arrivals

Save "25 Carat Diamond Engagement Ring", and we’ll notify you when there are new listings in this category.

25 Carat Diamond Engagement Ring For Sale on 1stDibs

Surely you’ll find the exact 25 carat diamond engagement ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of gold, platinum and white gold, this item was constructed with great care. Find an antique version now, or shop for 575 vintage or 616 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a 25 carat diamond engagement ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Creating a 25 carat diamond engagement ring has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., Alexandra Mor and TJD are consistently popular. An oval cut version of this piece has appeal, but there are also round cut and emerald cut versions for sale. When shopping for a 25 carat diamond 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 25 Carat Diamond Engagement Ring?

Prices for a 25 carat diamond engagement ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $121 and can go as high as $750,000, while this accessory, on average, fetches $2,644.

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 rings, vintage 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 rings, vintage 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.