3 Carat Diamond Engagement Ring

Oval Diamond Ring Baguette

Vine Rings

Three Stone Transitional Cut Diamond

Radiant Cut 3 Stones Engagement Ring

Heart Ring Diamond Vintage

Gia Certified 3 Carat Emerald Cut Diamond

Diamond Past Present Future Ring

Platinum 3 Baguette Ring

3 Carat Diamond Engagement Ring

$75,000

3 Carat Diamond Engagement Ring

By Vivid Diamonds

Located in Miami, FL

Spectacular engagement ring crafted in platinum, showcasing a GIA certified round brilliant cut diamond weighing 3.00 carats, G color, SI1 clarity, accented by two pear shaped diamon...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

$1,995

1/3 Carat Solitaire Diamond Engagement Ring

Located in Sugar Land, TX

♥ Product Summary ♥ Main Stone: Diamond Approx. Diamond Carat Weight: .33cttw Diamond Clarity: VS2 Diamond Color: G Diamond Cut: Round Prong Material: 14k White Gold Band Material:...

Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

GIA Certified 3 Carat Radiant Cut Diamond Platinum Engagement Ring

Located in Chicago, IL

A luxurious masterpiece featuring a stunning 3-carat Flawless F Color Radiant-cut Diamond, certified by GIA. This exquisite diamond boasts excellent polish and excellent symmetry, wi...

Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Platinum

3 Carat Light Yellow Radiant Cut Diamond Halo Engagement Ring

$28,700

3 Carat Light Yellow Radiant Cut Diamond Halo Engagement Ring

By Rare Colors

Located in New York, NY

3.31 Carat Light Yellow (W-X) VS2 Clarity Radiant Cut Diamond 0.44 Carats of White Rounds GIA Certified Diamond Crafted in Platinum and 18k Yellow Gold Handmade in NYC This pi...

Category

2010s Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

$10,000Sale Price|20% Off

1.08 Carat Princess Cut Diamond 3 Stone Engagement Ring

Located in Santa Barbara, CA

Behold, a true turn of the century gem! This contemporary engagement ring features a stunning 1 carat princess cut diamond, expertly cut to maximize its brilliance and fire.

Category

1990s American Contemporary Engagement Rings

Materials

Diamond, Platinum

Art Deco 3/4 Carat Diamond Antique Engagement Ring

$7,000

Art Deco 3/4 Carat Diamond Antique Engagement Ring

Located in Santa Barbara, CA

You can't help but be completely entranced by this vintage 1920s Art Deco antique engagement ring. The center round brilliant cut diamond grips your attention with exceptional color ...

Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Platinum

$14,474

GIA 1.51ct Princess 3-Stone Past, Present & Future Diamond Ring

By EMD Diamonds

Located in New York, NY

Embrace the allure of this stunning diamond ring, an exquisite representation of timeless elegance and craftsmanship. At its heart is a remarkable princess diamond, boasting a weight...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Recent Sales

Unavailable

Unavailable

3/8 Carat TW Diamond Engagement Ring

Located in New York, NY

Metal: 10K Pink Metal Weight: 1.80 grams Metal Size: 7 Gemstone: Diamond Diamond Weight: 0.47 CT Clarity: I2-13 Country Of Origin: India

Category

21st Century and Contemporary Indian Engagement Rings

Ophelia 3 Carat Diaspore Engagement Ring with Diamonds 1.28 Carat

Unavailable

Ophelia 3 Carat Diaspore Engagement Ring with Diamonds 1.28 Carat

Located in New York, NY

Ophelia is a beautiful diaspore ring created by Mike Nekta in NYC. Center Stone: Natural Color Change Diaspore Carat Weight: 3.22 Shape: Round Metal: 14K White Gold Diamonds: F...

Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, 14k Gold

3 Carat GIA Certified Oval Diamond Pink Diamond Engagement Ring

Unavailable

Unavailable

1 3/8 Carat TW Diamond Engagement Ring

Located in New York, NY

1 3/8 CT TW DIA ENG RING Metal: 14K White Metal Size: 7 Metal Weight: 3.60 grams Gemstone: Diamond Diamond Weight: 1.4 CT Clarity: I2 Country Of Origin: India

Materials

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

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting

Unavailable

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting

By Hannah Florman

Located in Boston, MA

GIA certified diamond engagement ring with 3 carat center stone, G color and VS2 clarity (**this ring can be made with a different diamond to accommodate your budget and taste, pleas...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 14k Gold

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting

Unavailable

3 Carat Round Diamond Engagement Ring with Custom 3-Sided Pave Setting

By Hannah Florman

Located in Boston, MA

GIA certified diamond engagement ring with 3 carat center stone, G color and VS2 clarity (**this ring can be made with a different diamond to accommodate your budget and taste, pleas...

Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Platinum

Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 18k Gold

Unavailable

Unavailable

Tiffany & Co. 2.73 Carat Radiant Cut Diamond Gold 3 Stone Engagement Ring

By Tiffany & Co.

Located in Los Angeles, CA

Basic Information Product Id: WJTC-0226 Total Diamond Weight: 3.03 Average Color: D Average Clarity: VVS2 Center Stone Details Certification Laboratory: Tiffany & Co. ...

Category

2010s American Engagement Rings

Materials

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

Bombshell 1950s Mr Blackwell 50s Vintage Couture Gold Metallic Wiggle Dress Gown

$2,250

Size: Small

Bombshell 1950s Mr Blackwell 50s Vintage Couture Gold Metallic Wiggle Dress Gown

By Mr. Blackwell

Located in San Diego, CA

WOW! This vintage Mr. Blackwell Custom dress is OUT OF THIS WORLD! This is quite possible the best Mr. Blackwell piece I have ever seen! Dating from the late 1950s/ early 1960s, this...

Category

1950s American Evening Gowns

Cartier 3.10 Carat Old European and Triangular Diamond 18K WG Engagement Ring

$37,050

Cartier 3.10 Carat Old European and Triangular Diamond 18K WG Engagement Ring

By Cartier

Located in New York, NY

Designer: CARTIER Title: Cartier 3.10 Carat Old European Cut I VVS2 and Triangular Shape G VS1 Diamond 18 Karat White Gold Engagement Ring Style: Engagement Metal: 18 Karat White Gol...

Category

20th Century Engagement Rings

Materials

Diamond, 18k Gold, White Gold

An important Colombian emerald and diamond cluster ring

Located in London, GB

An important emerald and diamond cluster ring, the cushion-cut emerald weighing 5.91 carats accompanied by GCS report stating to be of Colombian origin, claw-set within a frame forme...

Category

21st Century and Contemporary English Art Deco Cluster Rings

Materials

Diamond, Emerald, Platinum

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3 Carat Diamond Engagement Ring For Sale on 1stDibs

Find the exact 3 carat diamond engagement ring you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, Platinum and 18k Gold. Our collection of these items for sale includes 9214 vintage editions and 11711 modern creations to choose from as well. If you’re looking for a 3 carat diamond engagement 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 18th Century while another version may have been produced as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. There have been many well-made iterations of the classic 3 carat diamond engagement ring over the years, but those made by Tiffany & Co., Antinori Fine Jewels and Roman Malakov are often thought to be among the most beautiful. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes oval cut and old european cut alternatives. If you’re browsing our inventory for a 3 carat diamond engagement ring, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 3 Carat Diamond Engagement Ring?

The price for a 3 carat diamond engagement ring starts at $19 and tops out at $475,940,000 with these rings, on average, selling for $9,154.

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.