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.45 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
Ring Size: 8.95 Metal Type: Platinum Weight: 4.9 grams Center Diamond Details Shape: Old European
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

White Diamond, Platinum

.45 Carat Yellow Gold Diamond Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 7.5 Metal Type: 14 Karat Yellow Gold Weight: 8.7 grams Center Diamond
Category

Antique 1880s Unknown Victorian Engagement Rings

Materials

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

8, 45 carats Cabochon tourmaline and diamonds ring
Located in PARIS, FR
Stones: 1 tourmaline of 8.45cts, 12 diamonds: 0.29ct Material: White gold Dimensions: 1.4cm Weight
Category

Early 2000s Fashion Rings

Materials

Diamond, Tourmaline, White Gold

.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 Diamond Rose White Gold Band Ring
Located in Stamford, CT
12.5mm Wide heavy diamond band ring. 9 round full cut diamonds on both ends of ring totaling 18
Category

Late 20th Century Band Rings

Materials

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

.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 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 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

Peter Suchy .45 Carat Diamond Platinum Eternity Wedding Band Ring
By Peter Suchy
Located in Stamford, CT
Diamond wedding band ring. Beaded channel set diamond antique Inspired eternity ring with full cut
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

.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

HARBOR D. Diamond Cluster Halo Ring 0.54 Carat 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold cluster ring featuring 45 round brilliants weighing 0.54 carats. Color G-H Clarity
Category

2010s American Contemporary Bridal Rings

Materials

Diamond, White Gold

Magnificent Solid Platinum Ring with 45 Carat Tourmaline & Diamonds
Located in Antwerp, BE
Exceptional Magnificent Solid Platinum Ring With 45.6 Carat Natural Tourmaline & Diamonds This
Category

21st Century and Contemporary Artisan Dome Rings

Materials

Diamond, Tourmaline, 18k Gold, White Gold, Platinum

18K Yellow Gold 45 Carat Aquamarine and Diamond Ring
Located in New York, NY
18K Yellow Gold 45 Carat Aquamarine And Diamond Fashion Cocktail Fine Estate Ring. Extra large pear
Category

20th Century American Modern Cocktail Rings

Materials

Aquamarine, Diamond, Yellow Gold, 18k Gold

Vintage Artisan Men's Gold Diamond Ring: .45 Carat Diamond, Sizable 10.5
Located in Fairfield, CT
centered with a .45 carat brilliant-cut round diamond, exquisitely set to showcase its sparkle. The band
Category

20th Century Unknown Artisan Band Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

45 Carat Natural Aquamarine and Diamond Cocktail Ring 14 Karat Gold, Estate
Located in New York, NY
Approximately 45 Carat Natural Aquamarine & 2.5 Ct Diamond Cocktail Ring 14 Karat white gold
Category

Early 2000s Cocktail Rings

Materials

Aquamarine, Diamond, 14k Gold

Vhernier 7, 45 Carat Sapphires and Diamonds Gray Gold Ring
By Vhernier
Located in Bari, IT
Vhernier Ring in 18K yellow solid gold, 7,45 Carat Sapphires and Diamonds brillant cut 0,77
Category

Early 2000s Italian Modern Cocktail Rings

Materials

Ruby, Diamond, Sapphire, Gold

Dior Diorella 45 Carat Rubellite Diamond Yellow Gold Cocktail Ring
By Christian Dior
Located in Feasterville, PA
showcasing a pink sapphire and green enamel throughout the ring. The diamonds have a total weight of 1.22ct
Category

2010s Cocktail Rings

Materials

Rubelite, Pink Sapphire, Diamond, Yellow Gold

.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

.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 Old European Diamond Two Tone Gold Men's Art Deco Ring
Located in Stamford, CT
Vintage 1930's men's diamond halo ring. Large 14k yellow gold setting with .50ct round center
Category

Early 20th Century Fashion Rings

Materials

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

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

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

2.62 Carat London Blue Topaz and .45 Carat Diamond Gold Ring by Lauren Harper
By Lauren Harper
Located in Winnetka, IL
.45 carat Diamond statement ring is made in 18kt Gold. Size 6.5. Can be made in any size as a special
Category

2010s Artisan Cocktail Rings

Materials

Diamond, Topaz, Gold, 18k 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

2, 45 carat Sapphires 2, 36 carat Diamonds 18 kt White Gold Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Fabulous oval ring in 18 kt gold, enriched with 2.45 ct
Category

Vintage 1980s Italian Retro Fashion Rings

Materials

Diamond, Blue Sapphire, 18k Gold

14 Karat White Gold .45 Carat Natural Diamond Anniversary Band Ring
Located in Baltimore, MD
14 Karat White Gold .40 CTW Natural Diamond Anniversary Band Ring Size 7 Metal: 14k white gold
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, White Gold

French 1950s 3, 45 Carats Diamond 18 Karats White Gold Solitaire Ring
Located in Poitiers, FR
elegant diamond solitaire ring, its setting consists of a half-bowed ring, which holds two half-moon
Category

Vintage 1950s French Retro Solitaire Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, White Gold, Platinum

1920s Art Deco .45 Carat Old European Brilliant Cut Diamond Engagement Ring
Located in Atlanta, GA
Item Details: Ring Size: 6.75 Metal Type: 18 Karat White Gold Weight: 2.3 grams Center Diamond
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

Square ring by Chopard, in 18-carat white gold, set with 45 diamonds
By Chopard
Located in Monte-Carlo, MC
set of 44 diamonds that delicately adorn this ring, totaling 2.2 carats of pure sparkle. Each diamond
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, White Gold

45 Carat Black Onyx Ring and Earring Set in 18 Karat Rose Gold with Diamonds
By Sunita Nahata
Located in Hong Kong, HK
, diamond and semi-precious gemstones set in 18K rose gold. Ring: Black Onyx: 14.92 carat baguette
Category

21st Century and Contemporary Hong Kong Contemporary Cocktail Rings

Materials

Amethyst, Diamond, White Diamond, Garnet, Onyx, Pearl, Quartz, Gold, 18k...

18 Karat Yellow Gold, Onyx, .45 Carat Diamond and South Sea Pearl Cocktail Ring
By Cellini
Located in New York, NY
design makes for a truly unique and special piece. Total Diamond Weight .55 Carats. Ring Size: 6.75
Category

Vintage 1980s Italian Art Deco Fashion Rings

Materials

Diamond, Onyx, South Sea Pearl, Yellow Gold

Nava Joaillerie Indy open ring pavé / 18K white gold / 45 diamonds
Located in MARSEILLE, FR
as a veil on the skin, allows the diamond to be admired from every angle. This piece is made of 45
Category

2010s French Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Nava Joaillerie Indy open ring pavé / 18K yellow gold / 45 diamonds
Located in MARSEILLE, FR
as a veil on the skin, allows the diamond to be admired from every angle. This piece is made of 45
Category

2010s French Cocktail Rings

Materials

Diamond, 18k Gold, Yellow Gold

Nava Joaillerie Indy open ring pavé / 18K rose gold / 45 diamonds
Located in MARSEILLE, FR
as a veil on the skin, allows the diamond to be admired from every angle. This piece is made of 45
Category

2010s French Cocktail Rings

Materials

Diamond, 18k Gold, Rose Gold

14 Karat Yellow Gold Square Cut .45 Carat Ruby and Round Diamond Fashion Ring
Located in Milford, DE
A classy ring with a brilliant sparkle. Features 9 square-cut, open back genuine rubies (.05 ct
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Ruby, 14k Gold

Mens Natural Diamond Ring 14K Gold Vintage .45 Tdw Three Stones
By Estate Jewelry
Located in East Brunswick, NJ
Mens Natural Diamond Ring 14K Gold Vintage .45 TDW Three stones This estate ring for a man is
Category

Late 20th Century Band Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

Platinum Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

5.07 Carat Apatite Diamond Ring White Gold Cocktail Ring
By DGI
Located in Los Angeles, CA
-blue Pear Cut Apatite that weighs 4.22 Carats and is surrounded by a halo of 45 Round Cut Diamonds
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Apatite, 14k 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

0.95 Carat Diamond Rose 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

21st Century and Contemporary American Contemporary Bridal Rings

Materials

Diamond, 14k Gold, Rose Gold

1.50 Carat Champagne and White Diamond Band Ring
By Le Vian
Located in Rome, IT
1.57 ct Chocolate & Vanilla Round Brilliant Cut Diamonds Statement / Anniversary Band Ring. The
Category

2010s American Modern Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

8.72 Carat Black Diamond Quartz and Diamond White Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
8.72 Carat Black Diamond and Black Rutilated Quartz White Gold Cocktail Ring An 8.11 Carat Pear
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

White Diamond, Black Diamond, Quartz, 14k Gold, White Gold

1.42 Carat Pear Shape Ruby and Diamond Platinum Ring
By David Gross Group
Located in New York, NY
. Surrounded by 83 brilliant cut diamonds (F+ VS+) weighing a total of .45 carats seamlessly set in this
Category

2010s American Contemporary Fashion Rings

Materials

Ruby, Diamond, Platinum

1970s 45.09 Carat Aquamarine Diamond White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage 45.09 carat aquamarine and 0.96 carat diamond, 18 karat white gold cocktail ring
Category

Vintage 1970s Unknown Retro Cocktail Rings

Materials

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

Edwardian 0.40 Carat Diamond Engagement Platinum Ring
Located in beverly hills, CA
each highlight two round diamonds. The total carat weight of the mounting is approximately .45 carats
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

EGL Certified .57 Carat Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
. EGL certificate # US400116058D 18 rectangular tapered baguette H-I VS diamonds, Approximate .45 carats
Category

Late 20th Century Engagement Rings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

6.75 Carat Pear Aquamarine Diamond White Gold Cocktail Ring
Located in Stamford, CT
Mid-Century 1960's vintage aqua and diamond ring. 6.75 carat pear shaped bright blue natural
Category

Mid-20th Century Cocktail Rings

Materials

Aquamarine, Diamond, White Gold, 14k Gold, Gold

.45 Carat Art Deco Diamond 18 Karat Yellow Gold/Platinum Wedding Band
Located in Atlanta, GA
Ring Size: 7 Metal Type: 18k Yellow Gold & Platinum [Hallmarked, and Tested] Weight: 1.5 grams
Category

Vintage 1920s Unknown Art Deco Wedding Rings

Materials

Diamond, Yellow Gold, Platinum

Platinum Heather 2 Rows Interweave Diamond Ring '1/3 Carat'
Located in San Francisco, CA
ring. Product details: Center Gemstone Color: WHITE Side Gemstone Type: NATURAL DIAMOND Side
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

4.12 Carat Morganite Diamond 18 Karat Yellow Gold Engagement Ring
By DGI
Located in Los Angeles, CA
. This gorgeous and classy Morganite Diamond Ring has a 3.25 Carat Pear Cut Pink Morganite and has a Halo
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Morganite, 18k Gold, Yellow Gold

18 Karat White Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat Yellow Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

18 Karat Rose Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18 Karat Yellow Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14 Karat White Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

14 Karat Rose Gold Colmar Diamond Ring '1/4 Carat'
Located in San Francisco, CA
This curved crown band features 0.27-carat total weight of round brilliant diamonds. It can be
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

1 Carat GIA Light Blue Marquise Diamond Ring
Located in New York, NY
Carats of Pink Rounds - .45 Carats of White Rounds - Total weight 1.95 Carats - Handmade in NYC - Size
Category

2010s American Cocktail Rings

Materials

Diamond, Blue Diamond, Pink Diamond, Rose Gold, Platinum

3.51 Carat Natural Peridot Sapphire Diamond Rose Gold Cocktail Ring
By Roshe Jewels
Located in Los Angeles, CA
3.51 Carat Natural Peridot Sapphire Diamond Rose Gold Cocktail Ring This beautiful ring has an
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Sapphire, Peridot, Diamond, Rose Gold, 14k Gold

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45 Carat Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 45 carat 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, Platinum and 18k Gold — can elevate any look. You can easily find a 294 antique edition and 378 modern creations to choose from as well. You’re likely to find the perfect 45 carat diamond ring among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but .5 Carat and 1 Carat carat weights, specifically, are sought with frequency. A 45 carat diamond ring from LB Exclusive, Mark Broumand and Gabriel & Co. — each of whom created a beautiful version of this treasured accessory — is worth considering. 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. If you’re browsing our inventory for a 45 carat diamond 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 45 Carat Diamond Ring?

Prices for a 45 carat diamond ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $360 and can go as high as $485,152, while this accessory, on average, fetches $3,590.

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 Diamond Ring
  • 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.