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3 Carat Rectangular Diamond Ring

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3 Carat GIA Certificate G Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke 3.00 carat cushion cut diamond engagement ring with the perfect combination of elegance
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

3 Carat GIA Certificate E Color Cushion Diamond Platinum Bespoke Engagement Ring
By Hasbani Diamonds
Located in London, GB
A bespoke ring with one of the best colors and clarity center diamond, 3.00 carat cushion cut
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

Exceptional GIA Certified 3 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
This stunning ring features an exquisite 3-carat emerald-cut diamond as its centerpiece, radiating
Category

2010s Unknown Contemporary Engagement Rings

Materials

White Diamond, Diamond, Platinum

Rectangular Cut Emerald and Diamond Ring Gold
By Emeralds Maravellous
Located in US
This is a Gorgeous Emerald and Diamond Engagement Ring set with a rectangular cut emerald weighing
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Yellow Gold

3 Carat GIA Fancy Light Yellow Bezel Set Diamond Ring
Located in New York, NY
set easy to west in a bezel set 18kt Yellow Gold ring 3.01 Carat GIA Fancy Light Yellow Diamond VVS2
Category

2010s Fashion Rings

Materials

Yellow Diamond, Yellow Gold

Vintage 3 Carat Ceylon Sapphire and 2.38 Carat Diamond White Gold Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
. This 3 carat oval sapphire ring with diamonds is hallmarked to the outer surface of the shank with the
Category

1990s French Cluster Rings

Materials

Diamond, Sapphire, White Gold

Platinum Diamond Solitaire Engagement Ring - 950 Rectangular Princess 1.08ct GIA
Located in Greensboro, NC
Information Natural Diamond Carat(s): 1.08ct Cut: Rectangular Princess Color: J Clarity: VS2 Certified by: GIA
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 3 Carat Center VVS1 -D Emerald Cut Diamond Ring 8.3 Carats Total
Located in Tustin, CA
Incredible ring features a GIA certified 3 carat cut-cornered step cut (emerald cut) diamond center
Category

2010s American Contemporary Cocktail Rings

Materials

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

Fred of Paris Diamond and Gold Rectangular Ring
By Fred Paris
Located in Amsterdam, NL
An 18 carat gold ring with a rectangular top set with two rows of 6 brilliant cut diamonds (appr
Category

Vintage 1970s Band Rings

Materials

Diamond, Gold, 18k Gold

1990s 3 Carat Aquamarine with Diamond Halo and 14K Gold Ring
Located in Atlanta, GA
This gorgeous 1990s ring showcases a clear blue 3 Carat Aquamarine center stone surrounded by a
Category

Late 20th Century Unknown Modern Engagement Rings

Materials

Aquamarine, Diamond, 14k Gold, White Gold

3 Carat Fancy Yellow Radiant Diamond Three Stone Ring
Located in New York, NY
Incredible rectangular make, gorgeous ratio 100% eye clean, amazing SI1 Set in Platinum and 18kt Yellow Gold
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

14K Yellow Gold 2-1/3 Carat Diamond Cluster Chevron Shaped Band Engagement Ring
Located in New York, NY
Elegant and timeless, this two-tone diamond engagement and wedding ring set features 2.3 carat
Category

21st Century and Contemporary Indian Modern Band Rings

Materials

Diamond, White Diamond, Yellow Gold, 14k Gold

14K Yellow Gold 2-1/3 Carat Diamond Cluster Band Engagement Ring & Wedding Band
Located in New York, NY
Elegant and timeless, this two-tone diamond engagement and wedding ring set features 2.3 carat
Category

21st Century and Contemporary Indian Contemporary Bridal Rings

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

GIA 5.02 Carat Radiant-Cut 3 Stone Diamond and Platinum Ring
By Mellen
Located in New York, NY
This scintillating ring features a GIA certified 5.02 carat rectangular radiant-cut F color VS1
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, Platinum

18kt White Gold 3.94ct. Rectangular Faceted Paraiba & 0.83ct. Diamond Ring
Located in New York, NY
Magnificent 18 karat white gold ring exquisitely set with a 3.94 carat rectangular Paraiba
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Paraiba, 18k Gold, White Gold

3 Emerald Cut Diamonds with Single Halo Pavé Ring
Located in Wailea, HI
Shape and Cutting Style - Round Cornered Rectangular Modified Brilliant 3 stones 2.33 carat total
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold

Yellow Gold Amethyst & Diamond Ring - 10k Rectangular Cushion 2.21ctw Size 7 1/4
Located in Greensboro, NC
Carat(s): 2.15ct Cut: Rectangular Cushion Color: Purple Natural Diamonds Carat(s): .06ctw Cut: Single
Category

21st Century and Contemporary Cocktail Rings

Materials

Amethyst, Diamond, 10k Gold, Yellow Gold

GIA 12.63ct Fancy Yellow Radiant Diamond 3-Stone Platinum Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
Platinum with 18k Yellow gold accent 3 Stone Ring with 2 Trapezoid Cut diamonds on the side (1.31 Ct). The
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

10.35 Carat Rectangle Aquamarine Ruby Diamond Platinum Engagement Ring
Located in Stamford, CT
3 round brilliant cut diamonds on each shoulder. Meticulously cut in a rectangular shape, the aqua
Category

Early 20th Century Engagement Rings

Materials

Aquamarine, Diamond, Ruby, Platinum

Vintage 1940s 2.66 Carat Diamond and Platinum Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning vintage 1940s Art Deco 2.66 carat diamond and platinum cocktail ring; part of our
Category

Vintage 1940s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

Vintage 10k White Gold Rectangular Black Onyx w/ Diamond Open Work Sides Ring
Located in Montclair, NJ
, rectangular cut black onyx stone adorned with 3 old cut diamonds neatly and individually set at a diagonal
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Onyx, 10k Gold, White Gold

Diamond and Blue Sapphire Art Deco Style Rectangular Ring in 18K White Gold
Located in Bangkok, TH
Art Deco design diamond and blue sapphire rectangular target ring in white gold. Centered with an
Category

21st Century and Contemporary Thai Art Deco Cluster Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Antique 1 Carat Sapphire and 1.10 Carat Diamond Platinum Cluster Ring
Located in Jesmond, Newcastle Upon Tyne
the plain shank. This 1 carat sapphire and diamond ring has been independently tested using state of
Category

20th Century Unknown Cluster Rings

Materials

Diamond, Sapphire, Platinum

Vintage Pearl and 1.15 Carat Diamond Yellow Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
A fine and impressive pearl and 1.15 carat diamond, 18 karat yellow gold, platinum set dress ring
Category

Vintage 1940s Art Deco Band Rings

Materials

Pearl, Diamond, Platinum, Gold, 18k Gold, Yellow Gold

18K Yellow Gold GIA 2.86 carat Emerald and 1.02 carat Diamond Ring
Located in Big Bend, WI
Platinum 3 stone ring featuring a rectangular step cut natural emerald weighing 2.86 carats and
Category

2010s Engagement Rings

Materials

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

Cober set with baguette-cut Diamond of 1.28 Carat and Diamonds White Gold Ring
By Vincent Cober
Located in OSS, NH
baguette-cut Diamond of 1.28 Carat and Diamonds White Gold Ring 18K White Gold Ring with Baguette Cut and
Category

2010s Dutch Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.60 Carat Fancy Light Green Diamond Ring
Located in Kowloon, HK
Weight: 0.60 carats ➛ GIA certified ♦ SIDE STONE DETAILS ➛ Side white diamonds - 66 pcs -0.27 ct
Category

2010s Asian Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

1.02 Carat White Diamond Ring SI2 Clarity IGI Certified
Located in Kowloon, HK
Shape: Cut Cornered Rectangular Modified Brilliant ➛ Stone Color: H Colour ➛ Stone Weight: 1.01 carats
Category

2010s Asian Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Louis Newman & Co GIA Certified 3.01 Carat Emerald Cut Diamond Three Stone Ring
Located in New York, NY
that it looks more like a baguette Diamond. Set in a hand made platinum 3 stone ring with 2 step cut
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Chopard Happy Curves Diamond 18 Carat White Gold Ring
By Chopard
Located in London, GB
This beautiful 18 carat white gold ring from the iconic Chopard Happy Curves collection features an
Category

21st Century and Contemporary Swiss Modern Cocktail Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Bold Brilliance: 1.45 Carat Radiant Diamond Ring with Dazzling Accents
Located in רמת גן, IL
Embrace the captivating allure of this statement ring, featuring a mesmerizing 1.02 carat cut
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Kashmir Sapphire No Heat Diamond Platinum 3-Stone Engagement Ring
By Dover Jewelry
Located in Miami, FL
sapphire ring was inspired by a 3 stone motif and crafted in luxurious Platinum. Featuring a Step cut
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

GIA Report Certified Cut-Cornered Rectangular Modified Brilliant Cut Diamond
Located in Surfside, FL
GIA report certified engagement ring cut-cornered rectangular modified brilliant cut diamond 1.01
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

Platinum 18k Gold 3.47ct GIA Fancy Yellow & White Cushion Diamond 3 Stone Ring
Located in Montclair, NJ
. This gorgeous elongated radiant cut center diamond is certified at exactly 1.53 carats, showing an
Category

2010s American Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Cabouchon Turquoise and Diamond 18 Carat White Gold Cocktail Ring
Located in London, GB
This wonderful cocktail ring features 4 rectangular cabouchon turquoise in a rich even sky blue
Category

21st Century and Contemporary Unknown Retro Cocktail Rings

Materials

Diamond, Turquoise, Gold, 18k Gold, White Gold

1.02 Carat Fancy Intense Yellow Diamond Ring & Pendant Convertible GIA Certified
Located in Kowloon, HK
Weight: 1.02 carats ➛ GIA certified ♦ SIDE STONE DETAILS ➛ Side White diamonds - 21 pcs -0.237 cts
Category

2010s Asian Wedding Rings

Materials

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

1930s Antique 2.49 Carat Diamond and Platinum Cocktail Ring Art Deco
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique Art Deco 2.49 carat diamond and platinum cocktail ring
Category

Vintage 1930s Unknown Art Deco Cocktail Rings

Materials

Diamond, Platinum

Tycoon Cut 2.42 Carat Three-Stone Halo Design Diamond and Platinum Ring
By Tycoon
Located in San Diego, CA
TYCOON CUT DIAMOND Style: 3-Stone Halo Diamond Engagement Ring Serial Number: GIA #13371852
Category

2010s Engagement Rings

Materials

Diamond, Platinum

.75 Carat Diamond Sapphire Platinum Wedding Engagement Ring Art Deco Antique
Located in New York, NY
3/4 Carat Old Mine Cut Diamond of superb white color and fire! The diamond is G-H color. On either
Category

Early 20th Century Unknown Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

0.52 Carat Fancy Light Gray Blue Diamond Ring VVS1 Clarity GIA Certified
Located in Kowloon, HK
Weight: 0.52 carat ➛ Clarity: VVS1 ➛ GIA certified ♦ SIDE STONE DETAILS ➛ Side white diamonds - 68 pcs
Category

2010s Asian Engagement Rings

Materials

Emerald, Pink Diamond, Blue Diamond, White Diamond, Diamond, White Gold,...

Certified 6.96 Carat No Heat Natural Green Sapphire Diamond Ring Unheated
Located in New York, NY
color, Vs-2 clarity Video of ring upon request. Depth of ring: 8.1mm Current size: 6 3/4 (we may resize
Category

2010s American Solitaire Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Steven Battelle 4.8 Carats Multi Size Natural Diamonds 18k Gold Ring
By Steven Battelle
Located in Soquel, CA
Five different sized ( 7, 6, 5, 4, and 3 mm) and different colored rose cut rough natural diamonds
Category

21st Century and Contemporary Indonesian Contemporary Cocktail Rings

Materials

Diamond, 18k Gold, Gold

Showy 10.5 Carat Vivid Tanzanite Double Diamond Halo White Gold Cocktail Ring
Located in Tustin, CA
in size and weigh approximately 3 carats total diamond weight. Diamonds are VVS-VS2 in clarity and G
Category

Late 20th Century American Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Tanzanite, 14k Gold, White Gold

GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring
Located in London, GB
- Cornered rectangular modified Diamond situated in the center of the ring featuring 0.80 Carat clarity SI1
Category

2010s British Modern Engagement Rings

Materials

Brown Diamond, Diamond, Yellow Diamond, White Diamond, 18k Gold, White G...

Dazzling 1.32ct Diamond 3-Stone Ring in 18K White Gold - GIA Certified
Located in רמת גן, IL
Dazzling 1.32ct Diamond 3-Stone Ring in 18K White Gold - GIA Certified This exquisite ring
Category

2010s Israeli Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

Fine Diamond Ring
Located in Palm Beach, FL
Fine Diamond Ring Claw set with a cut-cornered rectangular modified brilliant-cut diamond weighing
Category

20th Century Engagement Rings

Materials

Diamond

Fine Diamond Ring
Fine Diamond Ring
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Edwardian 1900s Antique 6 Carat Colombian Emerald Diamond 18K Ring Size 7.5
Located in Santa Monica, CA
18K Edwardian 1900s Antique Natural Colombian Emerald Diamond Ring Size 7.5 Rectangular Cut
Category

20th Century American Edwardian Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Emilio Jewelry Gia Certified 5.26 Carat Yellow Diamond Ring
By Emilio!
Located in New York, NY
masterpiece out of these 3 rectangular diamonds. Featuring 3 Gia certified yellow natural diamonds Center
Category

21st Century and Contemporary Three-Stone Rings

Materials

Yellow Diamond

1.65 Carat Vivid Sparkling Pink Sapphire Diamond Double Halo White Gold Ring
Located in Tustin, CA
Elegant 1.65 carat ring features a vivid and sparkling, rectangular cushion cut pink sapphire prong
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

White Diamond, Tourmaline, 14k Gold, White Gold

Incredible Edwardian 18 Carat Gold and Old Mine Cut Diamond Panel Cluster Ring
Located in St Helens, GB
A superb Edwardian come Art Deco era cluster ring. Solid 18 carat yellow gold example with a
Category

Early 20th Century Cluster Rings

Materials

Diamond, Gold

Jabel 0.51 Carat Diamond Sapphire 18 Karat White Gold Ring
By Jabel
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 0.43 carat - I color with SI1 clarity
Category

Vintage 1940s Retro Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

Men's 2.50 Carats Round Brilliant 13 Diamond Wide Band Ring 14 Karat Gold
Located in Scottsdale, AZ
This bold, beautiful diamond band ring is absolutely bursting with sparkle! Featuring 3 horizontal
Category

20th Century Unknown Contemporary Band Rings

Materials

Diamond, Yellow Gold, 14k Gold

Marvelous 18k White Gold Pave Band Ring w/ 1.4 Carat Natural Diamonds IGI Cert
Located in רמת גן, IL
A Classic Pave Ring with Dazzling 1.4-Carat Baguette Diamonds This stunning 1.4-carat baguette
Category

2010s Israeli Band Rings

Materials

Diamond, 18k Gold, White Gold

Sparkling 18k White Gold 3 Stone Ring with 0.80 Ct Natural Diamonds GIA Cert
Located in רמת גן, IL
Stunning 3 stone ring made from 18k white gold with 0.80 total carat of radiant cut diamond and a
Category

2010s Israeli Three-Stone Rings

Materials

Diamond, White Gold

Platinum 4 carat Emerald Cut Sapphire Ring
Located in METAIRIE, LA
Colorless Nearly Flawless Rectangular Baguette cut Accent Diamonds ranking an E Color & VVS1-VVS2 Clarity
Category

Vintage 1970s Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

EGL Certified 1.00 Radiant Cut Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
Radiant cut white and yellow diamond engagement. EGL certified center rectangular diamond set in
Category

Late 20th Century Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

2.01 ct GIA Fancy Yellowish Orange Cushion Diamond Halo Engagement Ring
By J. Birnbach
Located in New York, NY
This ring features a 2.01 carat cut-cornered rectangular modified brilliant diamond, of VS2 clarity
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Boucheron Natural Burma Ruby Diamond Ring
By Boucheron
Located in London, GB
Boucheron Burmese ruby and diamond ring. Set to centre with a cushion shape old cut natural
Category

Vintage 1930s French Engagement Rings

Materials

Diamond, Ruby, Platinum

Ruby Diamond Black Jade Gold Ring
Located in New York, NY
estimated 17.61 carats, clustered with concentric rings of channel-set rectangular shape rock crystal and
Category

Mid-20th Century Unknown Art Deco Cocktail Rings

Materials

Moonstone, Onyx, Ruby, White Diamond, 18k Gold, White Gold

Boodles Trilogy Ashoka Cut Platinum Diamond Engagement Ring
By Boodles
Located in Bishop's Stortford, Hertfordshire
Gemstone- Diamond Secondary Gemstone- Diamond UK Ring Size- E 1/2 EU Ring Size- 43 US Ring Size- 2 3/4
Category

2010s Engagement Rings

Materials

Diamond, Platinum

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3 Carat Rectangular Diamond Ring For Sale on 1stDibs

You are likely to find exactly the 3 carat rectangular diamond ring you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and white gold. In our selection of items, you can find a vintage example as well as a contemporary version. If you’re looking for a 3 carat rectangular diamond 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. Finding an appealing 3 carat rectangular diamond ring — no matter the origin — is easy, but A. Augis, Cartier and Peter Suchy each produced a popular version that is worth a look. See these pages for an emerald cut iteration of this accessory, while there are also round cut cut and cushion cut cut versions available here, too. Most of our 3 carat rectangular diamond ring for sale are for women, but there are 223 pieces available to browse for men.

How Much is a 3 Carat Rectangular Diamond Ring?

On average, a 3 carat rectangular diamond ring at 1stDibs sells for $6,681, while they’re typically $253 on the low end and $341,470 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.