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45 Carat Round Diamond Ring

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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

.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

.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

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

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

14 Karat Yellow Gold Square Cut .45 Carat Ruby and Round Diamond Fashion Ring
Located in Milford, DE
each) set between two rows of eleven 1.3mm round diamonds. All set on 14K gold band. US Size 6
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, Ruby, 14k Gold

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

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

0.72 Carat Round Cut Diamond Bridal Cluster 14K White Gold Ring
By Roshe Jewels
Located in Los Angeles, CA
A beautiful and affordable option for a Bridal/ Engaement ring. Round Cut Diamond cluster ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Diamond, White Gold, 14k 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

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 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

0.7 Carat Diamond Moonlight Round Cluster Ring in 14K Yellow Gold
Located in New York, NY
total weight of 45 shimmering diamonds expertly arranged in a 9.2mm diameter round cluster. The delicate
Category

21st Century and Contemporary Hong Kong Modern Cluster Rings

Materials

Diamond, 14k Gold, Yellow Gold

3.00 Carat Yellow Oval Diamond Ring with Baguette Round Accents in Platinum
Located in La Jolla, CA
3.00 Carat Yellow Oval Diamond Ring with Baguette Round Accents in Platinum Yellow Diamond Ring
Category

21st Century and Contemporary North American Cocktail Rings

Materials

Diamond, Platinum

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

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

TJD 1.25 Carat Natural Round Cut Diamond 14KT Two Tone Gold Bypass Ring
By TJD
Located in New York, NY
With style and shimmer, this diamond ring is perfect for any occasion. Beautifully crafted by our
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Gold

0.75 Carat Natural Round Cut Diamond Ring Set G SI 14 Karat White Gold
Located in New York, NY
0.75 Ct Natural Round Cut Diamond Ring and Band G SI 14K White Gold 100% Natural Diamonds, Not
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, White Gold

TJD 0.75 Carat Natural Round Cut Diamond 14KT White Gold Halo Engagement Ring
By TJD
Located in New York, NY
our inhouse experts in 14 karat white gold and embellished with 45 brilliant cut and single cut round
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

0.75 Carat Natural Round Cut Diamond Ring Set G SI 14 Karat White Gold
Located in New York, NY
0.75 Ct Natural Round Cut Diamond Ring and Band G SI 14K White Gold 100% Natural Diamonds, Not
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, White Gold

1.91 Carat Round Diamond Halo 18 Karat White Gold Engagement Ring GIA Certified
Located in Sherman Oaks, CA
Gorgeous round brilliant cut diamond in octagon shaped diamond halo 18K white gold setting Weight
Category

Late 20th Century Engagement Rings

Materials

Diamond, 18k Gold

TJD 0.75 Carat Round Cut Diamond 18 Karat White Gold Engagement Promise Ring
By TJD
Located in New York, NY
round diamond with G-H color SI1-2 clarity, it's creating a look that cannot be denied.
Category

21st Century and Contemporary More Rings

Materials

Diamond, 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

TJD 0.50 Carat Round Diamond 18 Karat White Gold Crisscross Halo Engagement Ring
By TJD
Located in New York, NY
ct lined shank diamonds, and features 45 round brilliant diamond set in prong setting, glitters in G
Category

2010s Indian Contemporary Engagement Rings

Materials

Diamond, 18k Gold, White Gold

TJD 1.00 Carat Round Diamond 14 Karat White Gold Cushion Shape Cluster Halo Ring
By TJD
Located in New York, NY
elegance within its design. The total weight of diamonds 1.00 carat, H-I color, I2 Clarity. This ring is
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, White 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

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

TJD 1 Carat Round Diamond Cut 14 Karat White Gold Wedding Anniversary Band Ring
By TJD
Located in New York, NY
This Double-row Band Ring is expertly crafted in 14 Karat White Gold and features 45 Round cut
Category

21st Century and Contemporary Band Rings

Materials

Diamond, White Gold

Rose Gold Morganite & Diamond Ring - 14k Round 2.08ctw Cathedral
Located in Greensboro, NC
Stone Information Natural Morganite Carat(s): 1.85ct Cut: Round Color: Light Pink Natural Diamonds
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Morganite, 14k Gold, Rose Gold

TJD 0.50 Carat Natural Round Cut Diamond 14 Karat Rose Gold Halo Engagement Ring
By TJD
Located in New York, NY
diamonds 0.50 carat, H-I color and I2 Clarity. This ring has high polish finish and is valuable addition to
Category

2010s Indian Contemporary Engagement 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

Diamond Channel Band, Brushed White Gold, Round Diamond, Stackable, Wedding Ring
By Five Star Jewelry
Located in Austin, TX
Weight: .40 Carats Diamond Shape: Round Brilliant Diamond Clarity: VS2 (Excellent) Diamond Color: G
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, Gold, 14k Gold, White Gold

White Gold Diamond Halo Engagement Ring - 14k Round Brilliant .50ctw
Located in Greensboro, NC
Stone Information Natural Diamond Carat(s): .40ct Cut: Round Brilliant Color: I Clarity: SI1 Natural
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

TJD 1.00 Carat Round Diamond 14 Kt White Gold Three Row Wave Wedding Band Ring
By TJD
Located in New York, NY
This ring has a magical shines that never dims is embelished with 45 natural 1.00 Carat diamond set
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, White Gold

TJD 1 Carat Round Diamond 18 Karat Yellow Gold 2-Row Channel Set Engagement Ring
By TJD
Located in New York, NY
18 Karat Yellow Gold and features 45 Round Brilliant-cut White diamonds set in prong and channel
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold

Yellow Gold Diamond & Sapphire Halo Ring - 18k Round Brilliant 1.28ctw
Located in Greensboro, NC
& 18k White Gold Stone Information Natural Diamond Carat(s): .18ct Cut: Round Brilliant Color: F
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

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

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

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

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

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

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

Yellow Gold Diamond Men's Ring - 14k Round Brilliant .40ctw Floral Medallion
Located in Greensboro, NC
& 14k White Gold Stone Information Natural Diamonds Carat(s): .40ctw Cut: Round Brilliant Color: G - H
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

Natural Diamond Ring Platinum Round cut .65ct TDW Engagement Solitaire
By Estate Jewelry
Located in East Brunswick, NJ
Natural Diamond Ring Platinum Round cut .65ct TDW Engagement Solitaire This estate engagement ring
Category

Late 20th Century Three-Stone Rings

Materials

Diamond, Platinum

Yellow Gold Diamond Three-Stone Men's Ring - 14k Round .50ctw Wedding Ring
Located in Greensboro, NC
& 14k White Gold Stone Information Natural Diamonds Carat(s): .50ctw Cut: Round Brilliant Color: I - J
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, 14k Gold, Yellow Gold

TJD 1.0 Carat Round & Baguette Cut Diamond 18 Karat White Gold Wedding Band Ring
By TJD
Located in New York, NY
. Embedded with 45 brilliant cut round diamonds and baguette diamonds set in prong setting and crafted in 18
Category

2010s Indian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

TJD 1.0 Carat Round & Baguette Cut Diamond 14 Karat White Gold Wedding Band Ring
By TJD
Located in New York, NY
. Embedded with 45 brilliant cut round diamonds and baguette diamonds set in prong setting and crafted in 14
Category

2010s Indian Modern Engagement Rings

Materials

Diamond, 14k Gold, White Gold

2.46CT Yellow Diamond with Round-Cut White Diamonds 18k TT Gold Ring
Located in New York, NY
& Grace Ring. The 18K Two Tone Gold jewelry boasts 15 pcs 2.46 carat Yellow Diamond and Natural Round-cut
Category

20th Century Chinese Art Deco Engagement Rings

Materials

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

Yellow Gold Ruby & Diamond Band - 18k Round .39ctw Channel Set Wedding Ring
Located in Greensboro, NC
Natural Diamonds Carat(s): .15ctw Cut: Round Brilliant Color: G - H Clarity: SI2 - I1 Total Carats
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Yellow Gold Diamond Men's Wedding Band - 10k Round .15ctw Three-Stone Ring
Located in Greensboro, NC
Information Natural Diamonds Carat(s): .15ctw Cut: Round Brilliant Color: H - I Clarity: SI2 - I1 Total
Category

21st Century and Contemporary Wedding Rings

Materials

Diamond, 10k Gold, White Gold, Yellow 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

1.50 Carat Diamond White Gold Five Row Wide Swirl Cocktail Ring
Located in Stamford, CT
Spectacular wide diamond cocktail ring. 5 rows of 45 round full cut diamonds totaling .50cts, with
Category

Late 20th Century Cocktail Rings

Materials

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

18 Karat Two-Tone Gold Round Diamond Ring
By Meghna Jewels
Located in Hoffman Estate, IL
This beautiful ring has been crafted from 18-karat gold and hand set with .45 carats of sparkling
Category

21st Century and Contemporary Unknown Artisan Solitaire Rings

Materials

Diamond, Gold, 18k 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

14 Karat White Gold 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, White Gold

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45 Carat Round Diamond Ring For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 45 carat round 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, 18k gold and yellow gold — can elevate any look. Our collection of these items for sale includes 1351 vintage editions and 1361 modern creations to choose from as well. Making the right choice when shopping for a 45 carat round diamond ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. Creating a 45 carat round diamond ring has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., Roshe Jewels and Althoff Jewelry are consistently popular. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and emerald cut cut versions available here, too. There aren’t many items for men if you’re seeking a 45 carat round diamond ring, as most of the options available are for women and unisex.

How Much is a 45 Carat Round Diamond Ring?

The price for a 45 carat round diamond ring starts at $1 and tops out at $693,000 with these rings, on average, selling for $3,768.

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.