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45 Carat Engagement Rings

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.45 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Brilliant Carat Weight: .45 carat Color: I Clarity: SI1 Side Stone Details: Shape: antique Single Cut
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.45 Carat Diamond White Gold Engagement Ring
Located in Atlanta, GA
Diamond Details: Weight: .45 carat Cut: Old European Color: H Clarity: VS2 Side Diamond Details: Weight
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

.45 Carat Yellow Gold Diamond Engagement Ring
Located in Atlanta, GA
Details Shape: Old European Brilliant Carat Weight: .45 carat Color: Fancy Brown Clarity: SI2 Side
Category

Antique 1880s Unknown Victorian Engagement Rings

Materials

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

.45 Carat Marquise Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
1950's Marquise diamond engagement ring. Marquise center stone set in platinum with two baguette
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

.45 Carat Old European Diamond Victorian Gold Engagement Ring
Located in Stamford, CT
1900 Victorian diamond engagement ring. .45ct Old European cut center diamond in a 18k yellow gold
Category

Early 20th Century Victorian Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

.45 Carat Diamond Old Euro Filigree Gold Engagement Ring
Located in Stamford, CT
setting. 1 round old euro diamond 5.0 x 4.86 x 2.78mm G-H SI approximate .45 carats EGL Certificate # US
Category

Early 20th Century Engagement Rings

Materials

Diamond, White Gold, Gold, 18k Gold

.45 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.0 grams Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.45 Carat Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1960s 14k Yellow Gold .45 Carat Diamond Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 6 Metal Type: 14k White Gold [Hallmarked, and Tested] Weight: 3.4 grams
Category

Vintage 1960s Unknown Engagement Rings

Materials

Yellow Gold

.45 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 4.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.5 grams Diamond Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

.45 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 5.75 Metal Type: Platinum [Hallmarked, and Tested] Weight: 4.6 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

1920s Art Deco .45 Carat Old European Brilliant Cut Diamond Engagement Ring
Located in Atlanta, GA
Details: Shape: Old European Brilliant Carat Weight: .45 carat Color: I Clarity: VS1 Side Stone Details
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

0.95 Carat Diamond White Gold Engagement Ring
By DGI
Located in Los Angeles, CA
This unique Cluster ring has 45 Round Cut Diamonds that weigh 0.95 Carats. The Cluster setting
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Edwardian 0.40 Carat Diamond Engagement Platinum Ring
Located in beverly hills, CA
this finely detailed Edwardian era platinum engagement ring. The center diamond is highlighted on
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

EGL Certified .57 Carat Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
Diamond engagement ring. Round brilliant cut center diamond, accented with eighteen baguette side
Category

Late 20th Century Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

GIA Certificate 2.44 Carat Cushion Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Vintage 1950's sapphire and diamond engagement ring. GIA certified cushion cut Sapphire, no heat
Category

Mid-20th Century Engagement Rings

Materials

Blue Sapphire, Diamond, Sapphire, Platinum

Peter Suchy 2.08 Carat Natural Alexandrite Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Alexandrite and diamond halo engagement ring. GIA certified natural 2.08 carat round greenish
Category

21st Century and Contemporary Engagement Rings

Materials

Alexandrite, Diamond, Platinum

5.58 Carat Pear Cut Morganite Halo Diamond Rose Gold Engagement Ring
By Roshe Jewels
Located in Los Angeles, CA
5.58 Carat Pear Cut Morganite Halo Diamond Rose Gold Engagement Ring A gorgeous ring that can
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Morganite, 14k Gold, Rose Gold

Peter Suchy GIA Certified .99 Carat Diamond Halo Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Wonderful early Old Mine cut diamond engagement ring. Circa 1840 to 1850 with a unique asymmetrical
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

1920s Art Deco .45 Carat Old European Diamond Platinum Shield Ring
Located in Atlanta, GA
1920s Art Deco .45 Carat Old European Diamond Platinum Shield Ring Fits Ring Size 5 Platinum
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

TJD 0.75 Carat Diamond 18 Karat White Gold Halo Engagement Ring
By TJD
Located in New York, NY
A classic look that compliments any attire, these halo Engagement diamond ring are a stunning
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, White Gold

Vivid Diamonds GIA Certified 11.78 Carat Emerald Cut Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Exquisite Vivid Diamonds engagement ring crafted in platinum, showcasing a sensational GIA
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

1.20 Carat Diamond Halo and 14 Karat White Gold Engagement Ring
By Verma
Located in Atlanta, GA
This gorgeous Diamond Engagement Ring features a .75 Carat Round Brilliant Diamond prong set in a
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Delicate Diamond Engagement Ring
Located in New York, NY
of almost a half carat (.45 points). Modern brilliant cut stone, (H color, VS2 quality). Size 5 to
Category

Vintage 1960s American Engagement Rings

Materials

Diamond, 14k Gold

TJD 0.75 Carat Natural Diamond 14 Karat Yellow Gold Halo Engagement Ring
By TJD
Located in New York, NY
carat. The diamonds are natural, not treated and dazzles in H-I color I2 clarity. This engagement ring
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

TJD 0.75 Carat Natural Round Cut Diamond 14KT White Gold Halo Engagement Ring
By TJD
Located in New York, NY
treated and dazzles in H-I color I2 clarity. This engagement ring has high polish finish and is a valuable
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

GIA Certified Ruby and Diamond Halo Engagement Ring, 2.41 Carats in White Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This gorgeous ruby and diamond cocktail ring features a 2.41 carat, rich red ruby with accompanying
Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Diamond, Ruby, Gold, 18k Gold, White Gold

TJD 0.50 Carat Round Diamond 18 Karat White Gold Crisscross Halo Engagement Ring
By TJD
Located in New York, NY
Just her style, these sparkling diamond crisscross engagement ring are certain to dazzle and
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

TJD 0.50 Carat Natural Round Cut Diamond 14 Karat Rose Gold Halo Engagement Ring
By TJD
Located in New York, NY
Make the moment memorable with this diamond engagement ring. Expertly crafted in 14 Karat rose gold
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Rose Gold

1.91 Carat Round Diamond Halo 18 Karat White Gold Engagement Ring GIA Certified
Located in Sherman Oaks, CA
x 4.18 mm Carat Weight: 1.25 ct Color: K Clarity: SI2 Cut Grade: Good Total Depth: 59.8% Table Size
Category

Late 20th Century Engagement Rings

Materials

Diamond, 18k Gold

Diamond Ring Vintage 14K White Gold 1.91 TDW Engagement Wedding
By Estate Jewelry
Located in East Brunswick, NJ
This estate ring would make a marvelous engagement ring or wedding ring. The center round cut
Category

20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat Yellow Gold Heart Shaped Diamond Engagement Ring #15689
Located in Washington Depot, CT
14 Karat Yellow Gold Heart Shaped Diamond Engagement Ring #15689- This sparkling engagement ring
Category

Late 20th Century Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

TJD 1 Carat Round Diamond 18 Karat Yellow Gold 2-Row Channel Set Engagement Ring
By TJD
Located in New York, NY
This 0.80 ct of centre stone and 0.20 ct lined shank diamond engagement Ring is expertly crafted in
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold

White Gold Diamond Halo Engagement Ring - 14k Round Brilliant .50ctw
Located in Greensboro, NC
Size: 6 3/4 Sizing Fee: Up 2 sizes for $45 or Down 3 sizes for $40 Metal Content: 14k White Gold
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

1.95ctw Modern Diamond Engagement Ring, 14K Yellow Gold, Ring Size 6.75
Located in McLeansville, NC
This modern diamond engagement ring is a true showstopper. Crafted in 14K yellow gold, this ring
Category

1990s Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

The Everleaf - Black Opal Diamond Engagement Ring 18K Yellow Gold
Located in Suwanee, GA
The Everleaf - Australian Black Opal Diamond Engagement Wedding Ring 18K Yellow Gold. Opal—the
Category

2010s American Arts and Crafts Engagement Rings

Materials

Diamond, Opal, Black Opal, 18k Gold, Yellow Gold

14K Yellow Gold Accented Marquise Diamond Engagement Ring
Located in Laguna Beach, CA
6 small marquise diamonds, on the sides .45 carats total, h to i color, vs clarity. The ring size is
Category

Mid-20th Century Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Tiffany & Co. Platinum Round Diamond Engagement Ring Diamond band .73cts tw FVS2
By Tiffany & Co.
Located in New York, NY
Tiffany & Co. Diamond Engagement ring with channel set diamond band featuring a 0.45 ct center F
Category

2010s American Modern Engagement Rings

Materials

Diamond, Platinum

Faye Kim Platinum Ruby and Diamond Halo Engagement Ring
By Faye Kim
Located in Westport, CT
Faye Kim Platinum Ruby and Diamond Halo Engagement Ring. Lively and intense, the ruby is
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

Art Deco Diamond Platinum Wedding Engagement Ring Edwardian
Located in New York, NY
A stunning Antique Art Deco - Edwardian Diamond Ring in Platinum with a spectacular .20 Carat Old
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified Natural Fancy Yellow & White Diamond Three Stone Engagement Ring
Located in New York, NY
GIA certified 1.01 Carat Yellow Diamond and 1 Ct White Diamond Three Stone Engagement Ring in 18
Category

2010s Engagement Rings

Materials

White Diamond, Yellow Diamond, Gold, 18k Gold

Love From Dynasty - Black Opal Diamond Engagement Ring 18K Yellow Gold
Located in Suwanee, GA
Love From Dynasty - Black Opal Diamond Engagement Wedding Ring 18K Yellow Gold. Design Name
Category

2010s American Arts and Crafts Engagement Rings

Materials

Diamond, Opal, Black Opal, Yellow Gold

Diamond and Pearl Rose Gold Platinum Engagement Ring
Located in Atlanta, GA
Center Diamond Details: Shape: Old European Carat Weight: .45 carat Color: J Clarity: VS Side Stone
Category

Antique 1880s Unknown Victorian Engagement Rings

Materials

White Diamond, Natural Pearl, 14k Gold, Rose Gold, Platinum

Filigree Engagement Ring: Semi-Black Opal Diamond Band 18K Yellow Gold
Located in Suwanee, GA
Exquisite Filigree Engagement Ring: Australian Semi-Black Opal Diamond Band in 18K Yellow Gold
Category

2010s American Arts and Crafts Engagement Rings

Materials

Diamond, Opal, Black Opal, 18k Gold, Yellow Gold

1.96 Ctw Diamond Ring Vintage 14K Gold Band Two Stone Wedding Engagement
By Estate Jewelry
Located in East Brunswick, NJ
.45 carat round brilliant cut gem of SI2 clarity and H color. Five diamonds on either side are Old
Category

Mid-20th Century Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

French .60ctw Pear Opal Diamond Halo Engagement Ring, 14K Gold, Ring Size 5.25
Located in McLeansville, NC
approximately .45 carat diamonds, 12 stones single cut round 1.4 mm approximately .15 total carats G-H color, VS
Category

Early 2000s Engagement Rings

Materials

Diamond, Opal, 14k Gold, White Gold

1.50 Carat Champagne and White Diamond Band Ring
By Le Vian
Located in Rome, IT
ring weighs 7.1 grams, size 7.5, 11.5mm wide, contains 45 Natural Chocolate Brown (~1.2 ct) & 30
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Tiffany & Co Engagement Ring .45ct H-VS1 Diamond Solitaire Platinum
By Tiffany & Co.
Located in Dearborn, MI
Tiffany & Co Engagement Ring .45ct H-VS1 Diamond Solitaire Platinum Featuring a SUPERB Tiffany
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Danuta One of the Kind Platinum Diamond Emerald Engagement Ring
Located in Santa Fe, NM
Solid Platinum ring one of the kind designed by Danuta set with diamond center .54 carat total
Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Diamond, Emerald, Platinum

Danuta One of the Kind Platinum Diamond Emerald Engagement Ring
Located in Santa Fe, NM
Solid Platinum ring one of the kind designed by Danuta set with diamond center .54 carat total
Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Diamond, Emerald, Platinum

Natural Pink Diamond Engagement Ring 18 Karat White & Rose Gold GIA
Located in Boca Raton, FL
Fabulous natural pink diamond engagement ring fashioned in 18 karat white and rose gold. The ring
Category

21st Century and Contemporary Modern Engagement Rings

Materials

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

Certified 6.68 Ct. Cushion Tanzanite Diamond Engagement Ring in 18K White Gold
Located in Bangkok, TH
Average Clarity: SI Size: 1.35-1.50 mm. Number: 45 Weight: 0.68 Carat (approx. total weight) This ring is
Category

21st Century and Contemporary Unknown Art Deco Engagement Rings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Vintage Diamond Engagement Ring .45ct I/SI1 Platinum Genuine 1930s Antique Deco
Located in Dearborn, MI
Engagement Ring Featuring a Spectacular .45ct I/SI1 Genuine Transitional Cut Natural Diamond Center
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

3.99 Ctw Princess Cut Three Stone Diamond Platinum Engagement Ring GIA E/SI1
Located in Boca Raton, FL
Stunning princess cut diamond three stone engagement ring handcrafted in platinum. All 3 diamonds
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Art Deco Inspired 1.22 Carats Old European Cut Diamond Sapphire Platinum Ring
Located in Beverly Hills, CA
One Art Deco Inspired 1.22 Carat Old European Cut Diamond Sapphire Platinum Ring. Featuring one old
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Sapphire, Blue Sapphire, Diamond, White Diamond, Platinum

Valina Diamond Halo Ring White Gold, 14 Karat Princess Cut 1.15 Carat GIA
Located in Greensboro, NC
combined .45 carat total weight. The ring’s smoothly polished Euro shank is designed to keep the band from
Category

20th Century Unknown Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Belle Epoque Old Mine Cut Diamond Ring 18 Karat Gold Engagement Crown Tiara
Located in New York, NY
The diamonds is .45 Carats 28 Single Cut Diamonds Color: I-J Clarity: VS-SI The top of the ring is
Category

Antique 19th Century Unknown Belle Époque Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Silver, Gold

1.01 Carat Oval Diamond Halo 14 Karat White Gold Modern Engagment Ring
Located in Boca Raton, FL
Oval diamond halo modern engagement ring crafted in 14 karat white gold. The ring features an 1.01
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

White Diamond, Diamond, Gold, White Gold

TJD 1.25 Carat Natural Round Cut Diamond 14KT Two Tone Gold Bypass Ring
By TJD
Located in New York, NY
treated and dazzles in H-I color I2 clarity. This engagement ring has high polish finish and is a valuable
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Gold

Leo Round Diamond Solitaire Ring 0.45 Carat I SI2 14 Karat Yellow Gold
By The Leo Diamond
Located in San Diego, CA
THE LEO DIAMOND SOLITAIRE ENGAGEMENT RING Style: 4 - Prong Solitaire Serial Number: LEO251462
Category

2010s American Engagement Rings

Materials

Diamond, Yellow Gold, 14k Gold

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45 Carat Engagement Rings For Sale on 1stDibs

Browse a vast assortment of 45 carat engagement rings for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using gold, 18k gold and white gold. Our selection of items includes 1200 vintage examples as well as 967 contemporary versions. Our collection, which features older pieces for sale from the 18th Century and newer versions made as recently as the 21st Century, has proven very popular over the years. The designs in our inventory of 45 carat engagement rings bearing Art Deco or modern hallmarks are very popular. There have been many well-made iterations of these items over the years, but those made by Peter Suchy, Tiffany & Co. and Antinori Fine Jewels are often thought to be among the most beautiful. A selection of round cut, old european cut and oval cut can be found today on these pages. There aren’t many items for men in our collection of 45 carat engagement rings, as most of the options available are for women.

How Much are 45 Carat Engagement Rings?

On average, 45 carat engagement rings at 1stDibs sell for $5,782, while they’re typically $1 on the low end and $1,475,000 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 45 Carat Engagement Rings
  • 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.