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12 Carat Platinum Engagement Ring

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Diamond Platinum Engagement Ring App 12.02 Carat
Located in Boca Raton, FL
Style: 12.02 Fancy Yellow Internally Flawless Diamond Engagement Ring Main Diamond Details: GIA certified 12.02ctw Radiant Cut Fancy Yellow and Internally Flawless Clarity Diamond D...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, 18k Gold, Platinum

GIA Certified 12.94 Carat Diamond Engagement Ring in Platinum
Located in Beverly Hills, CA
One GIA certified 12.94 ct. diamond engagement ring in platinum centering one emerald cut diamond weighing 12.94 ct. with GIA Report No. 2215083471 – Color L and Clarity VS-1. The fe...
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

GIA Certified 1.12 Carat Light Yellow Diamond Platinum Engagement Ring
Located in Stamford, CT
Old European cut natural very light-yellow green diamond engagement ring. GIA certified center stone in a platinum setting with 4 straight baguette cut diamonds. Art Deco 1920's. ...
Category

Early 20th Century Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

Art Deco 1.12 Carats Diamond Platinum Geometric Engagement Ring
Located in Philadelphia, PA
Featuring a transitional cut diamond weighing approximately 0.88 carat - G color with SI1 clarity. Set in a stylized square form head and flanked by geometric form cathedral shoulder...
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Peter Suchy 12.67 Carat Natural Oval Sapphire Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Blue-Purple color change sapphire and diamonds engagement ring. AGTA certified 12.67ct oval center sapphire set in platinum with 3 round accent diamonds on each side. Natural color c...
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Platinum

Peter Suchy 1.12 Carat Light Natural Yellow Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
8 sided natural yellow diamond with white diamond halo platinum engagement ring designed just for this stone by the Peter Suchy Design Workshop. Platinum 1 octagonal 8 sided natura...
Category

2010s Engagement Rings

Materials

Yellow Diamond, Diamond, Platinum

GIA Certified 1.12 Carat Oval Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
Vintage 1940's Natural 1.12 carat oval bright orange/pink sapphire and diamond engagement ring. Set in platinum 1 oval brilliant light orange MI sapphire, Approximate 1.12 carats. ...
Category

Early 20th Century Engagement Rings

Materials

Diamond, Sapphire, Pink Sapphire, Platinum

Art Deco 3.12 Carat GIA Cert Diamond Platinum Engagement Ring
Located in New York, NY
This stunning platinum engagement ring from the Art Deco era, is centered with a sparkling GIA certified circular brilliant cut diamond that weighs 3.12ct. The color of the diamond i...
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Sapphire, Platinum

Vintage GIA Certified 2.12 Carat Diamond Platinum Engagement Ring
Located in New York, NY
This amazing platinum engagement ring from the Edwardian era, is centered with a sparkling GIA certified old mine cut diamond that weighs 2.12ct. graded J color with VS1 clarity. The...
Category

Early 20th Century Edwardian Engagement Rings

Materials

Diamond, Platinum

1.12 Carat Art Deco Old European Cut Diamond Platinum Engagement Ring
Located in Stamford, CT
Art Deco engagement ring circa 1920 – 1925 with 3 old European cut bright sparkly Diamonds complete with raised crowns and small tables. The ring has a domed top that is hand done wi...
Category

Vintage 1920s Engagement Rings

Materials

Diamond, Platinum

Vintage Tiffany & Co. Lucida 1.12 Carats Diamond Platinum Engagement Ring
By Tiffany & Co.
Located in Philadelphia, PA
Engagement ring centers a signature Lucida cut diamond weighing 1.12 carats total - D color with VVS1 clarity. With 'Lucida' inscribed girdle - prong set in an elegant weave motif ba...
Category

1990s Contemporary Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Certified 1.12 Carat Green Yellow Round Diamond Platinum Engagement Ring
Located in Stamford, CT
Diamond engagement ring. Round Ideal cut center stone with pave set diamond shoulders in a platinum setting. GIA Certified natural very light green. 1 super rare diamond, very light...
Category

Late 20th Century Engagement Rings

Materials

Diamond, Platinum

Peter Suchy 4.12 Carat Sapphire Diamond Platinum Triple Halo Engagement Ring
By Peter Suchy
Located in Stamford, CT
Emerald cut Sapphire and diamond three-stone engagement ring. GIA certified center stone in a platinum setting with two emerald cut side diamonds with a triple halo of round diamonds...
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

Peter Suchy 12.52 Carat Sapphire Diamond Three-Stone Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Sapphire and diamond three-stone engagement ring. Original natural GIA certified no heat cushion cut Sri Lanka Ceylon fine bright blue 9.44ct Sapphire Well-polished center stone. Mat...
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

GIA Certified 1.12 Carat Old European Cut Diamond Platinum Engagement Ring
Located in Los Angeles, CA
Estate GIA report certified 1.12 carat old European-cut diamond and platinum engagement ring. ABOUT THIS ITEM: A center diamond bigger than a carat, a GIA report, and a platinum s...
Category

Vintage 1970s Engagement Rings

Materials

Diamond, Platinum

Andreoli 12.22 Carat Emerald CDC Certified Diamond Platinum Engagement Ring
By Andreoli
Located in New York, NY
Andreoli 12.22 Carat Emerald CDC Certified Diamond Platinum Engagement Ring This Andreoli ring features: 4.90 Carat Round Brilliant Diamond (F-G-H Color, VS-SI Clarity) 12.22 Carat...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Emerald, Platinum

1.12 Carat Tiffany & Co Platinum Round Brilliant Cut Diamond Engagement Ring
By Tiffany & Co.
Located in London, GB
A 1.12 carat Tiffany & Co platinum round brilliant cut diamond engagement ring. The round brilliant cut diamond is estimated by us as D colour and VS1 clarity. This classic iconic ...
Category

2010s British Modern Engagement Rings

Materials

Diamond, Platinum

Van Cleef & Arpels Vintage VCA 3.12 Carat Diamond Platinum Engagement Ring
By Van Cleef & Arpels
Located in Miami, FL
This stunning Van Cleef & Arpel engagement ring of French provenance crafted in solid platinum. It is an authentic piece of jewelry designed and crafted by Van Cleef & Arpels , beari...
Category

Vintage 1980s French Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA Certified 5.12 Carat Fancy Yellow Oval Diamond Engagement Ring in Platinum
By Simon Ardem
Located in New York, NY
Diamond Platinum Fancy Yellow Ring, with GIA certificate no.2165961005, 5.12ct Fancy Yellow VS2 Oval cut natural diamond, 13 x 10mm (average 6 carat oval cut diamond measurements). S...
Category

2010s American Modern Engagement Rings

Materials

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

Art Deco 1.12 Carats European Cut Diamond Platinum Wheat Engagement Ring
Located in Philadelphia, PA
Featuring an old European cut diamond weighing approximately 1.00 carat - J color with SI1 clarity Basket set within wide prongs and flanked by cathedral shoulders Accented by old ...
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Unique GIA Certified 2.12 Carat Old European Diamond Platinum Engagement Ring
Located in New York, NY
This amazing engagement ring from the Art Deco era, is centered with a sparkling GIA certified old European cut diamond that weighs 2.12ct. graded J with VS1 clarity. The center diam...
Category

Early 20th Century Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, Platinum

1936 Art Deco 1.12 Carats Old European Diamond Platinum Engagement Ring
Located in Philadelphia, PA
Centering an old European cut diamond weighing approximately 0.90 carat; I color with VS clarity Set in a stylized W square form head with elegant tri-bead prongs Flanked by channe...
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

GIA Report 7.12 Carat Art Deco Engagement Ring
Located in New York, NY
Antique Art Deco engagement ring, finely crafted in platinum, with GIA certified Old European cut diamond at the center, weighing 7.12 Carat, J color VS2 clarity. Accenetd with bague...
Category

Vintage 1930s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

GIA 12.63ct Fancy Yellow Radiant Diamond 3-Stone Platinum Engagement Ring
By Sebastian Bernard
Located in Los Angeles, CA
A beautiful Elongated Radiant Natural Fancy Yellow SI2 GIA certified center Diamond set in a fine Platinum with 18k Yellow gold accent 3 Stone Ring with 2 Trapezoid Cut diamonds on t...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

12 Carat Radiant Cut Diamond Engagement Ring GIA Certified J SI1
Located in New York, NY
ISLA DIAMOND ENGAGEMENT PLATINUM RING BY MIKE NEKTA GIA CERTIFIED Center Diamond: Carat Weight: 11 Carats Color: J Clarity: SI1 Style: CUT-CORNERED SQUARE MODIFIED BRILLIANT Appro...
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

GIA Certified 0.59 Carat Bezel Set Cuhion Diamond Platinum Engagement Ring
By H & H Jewels
Located in Miami, FL
GIA Certified 0.59 Carat Bezel Set Cushion Diamond Platinum Engagement Ring For the woman seeking an engagement ring that is refined and elegant, enjoy this H&H Jewels, handcrafted...
Category

2010s Engagement Rings

Materials

Diamond, Platinum

GIA Certified 12.16 Carat Yellow Diamond Twisted Engagement Ring
By Roman Malakov
Located in New York, NY
A stylish engagement ring style showcasing a 12.16 carat radiant cut yellow diamond certified by GIA as Fancy Light Yellow, VS1 clarity. The vibrant center diamond is set in a chic i...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

GIA Certified 12.27 Carat Emerald Cut Diamond Engagement Ring
By Issac Nussbaum
Located in New York, NY
GIA CERTIFIED 12 CARAT EMERALD CUT DIAMOND RING Magnificent 12.27 Carat Emerald cut diamond ring. “The Magic is in the Cut “ Truly a masterpiece and example of old world diamond cut...
Category

2010s American Engagement Rings

Materials

Emerald, Diamond, Platinum

GIA Certified 12.79 Carat Round Brilliant Cut Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite diamond ring with a huge and impressive GIA Certified 12.79 Carat Round Brilliant Cut Diamond. The main stone is not only gorgeous and has triple excellent cut and poli...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Roman Malakov, GIA Certified 10.12 Carat Cushion Diamond Halo Engagement Ring
By Roman Malakov
Located in New York, NY
A chic jewelry piece showcasing a 10.12 carat cushion brilliant diamond certified by GIA as J color, SI1 clarity. Surrounding the center diamond is a row of round brilliant diamonds,...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Vivid Diamonds GIA Certified 12.29 Carat Emerald Cut Diamond Engagement Ring
By Vivid Diamonds
Located in Miami, FL
Sensational Vivid Diamonds Engagement ring crafted in platinum, featuring a spectacular GIA certified emerald cut diamond weighing 12.29 carats, L color, VS1 clarity, adorned with tw...
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

3.12 E/VVS1 Carat Emerald-Cut Diamond Platinum 3 Stone Ring
Located in New York, NY
Very fine platinum and emerald cut diamond engagement ring. It features a GIA certified 3.12cts E color VVS1 clarity diamond featuring Very Good polish, Very Good symmetry, and faint...
Category

20th Century American Engagement Rings

Materials

Diamond, Platinum

Flawless Type IIA 5.12 Carat Oval Diamond Platinum Ring Investment Grade
By Antinori Fine Jewels
Located in Rome, IT
An amazing and huge diamond measuring 12.38x8.13 mm GIA type IIA GIOCONDA TYPE D COLOR FLAWLESS CLARITY EXCELLENT SYMMETRY EXCELLENT POLISH NONE FLUORESCENCE
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Three Stones Emerald Cut 1.88 Carat Sapphire Engagement Ring in Platinum & Gold
By Kian Design
Located in South Perth, AU
Natural Peach Sapphire & Baguettes sapphire Ring Beautiful and understated, this platinum and 18 carat yellow gold ring is set with an attractive emerald cut untreated peach sapphir...
Category

2010s Australian Art Deco Engagement Rings

Materials

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

Roman Malakov GIA 12.55 Carat Emerald Cut Diamond Three-Stone Engagement Ring
By Roman Malakov
Located in New York, NY
An amazing and classic engagement ring style showcasing a 12.55 carat emerald cut diamond certified by GIA as K color, SI2 clarity, flanked by tapered baguette diamonds on either sid...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

TYPE IIA FLAWLESS GIA Certified 2.12 Carat Heart Shape Diamond Platinum Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite certified 2.12 carat heart shape diamond totally eye clean and full of life! The diamond has been certified by GIA. set in solid platinum is resizable or even customi...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Flawless D Color GIA Certified 4 Carat Emerald Cut Platinum Ring 12.41 MM
By Antinori Fine Jewels
Located in Rome, IT
Antinori Fine Jewels is proud to offer this important and impressive 4 carat GIA certified Flawless D Color Emerald cut diamond ring. The ring consists of one emerald cut diamond wei...
Category

2010s Italian Modern Engagement Rings

Materials

Emerald, Diamond, White Diamond, Platinum

Antique 1.12 Carat Diamond and Platinum Solitaire Ring Circa 1925
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive 1.12 carat diamond and platinum solitaire ring; part of our antique jewellery and estate jewelry collections This stunning antique diamond dress ring...
Category

Vintage 1920s Unknown Engagement Rings

Materials

Diamond, Platinum

GIA Certified 12 Carat Round Diamond Ring E Color
By Antinori Fine Jewels
Located in Rome, IT
An amazing 12 Carat exceptional round brilliant cut diamond ring. The main stone is in color very white, E Color and si1 very pleasant well hide small inclusions that are eye clean....
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

8.12 Ct Natural Star Sapphire Cabochon Ring in Platinum
Located in New York, NY
8.12 Ct Natural Star Sapphire Cabochon Ring in Platinum Size 6 Platinum 10.9 Grams Sapphire Cabochon size 10X15MM Beautiful star on the sapphire. Ring Size 6 ( it can be resized to...
Category

2010s Engagement Rings

Materials

Star Sapphire, Platinum

2.46 Carat GIA Certified Natural AAA Red Spinel .12 Diamond Ring Platinum 18KY
Located in Lambertville , NJ
A Romantic Engagement or Right Hand Ring is set with a 2.46 Carat Oval Red Spinel of Intense Red Hue and Fine AAA Gem Quality. The GIA Certified stone is Certified Natural, No Heat. ...
Category

2010s American Artisan Engagement Rings

Materials

Diamond, Spinel, 18k Gold, Yellow Gold, Platinum

Platinum Eternity Band with Approximately 3.12 Carats in Diamonds
Located in Surfside, FL
Platinum eternity band with approximately 3.12 carats in princess cut G-H color, VS-SI clarity diamonds. Size 6.5. This Diamond ring is currently size 6.5 and some items can be size...
Category

20th Century Engagement Rings

Materials

Platinum

GIA CERTIFIED 1.53 Carat Round Brilliant Cut Halo Set Diamond Engagement Ring
By H & H Jewels
Located in Miami, FL
GIA CERTIFIED 1.53 Carat Round Brilliant Cut Halo Set Diamond Engagement Ring This stunning ring is a one of a kind, handmade original by H&H Jewels. It features ornate milgrain ...
Category

2010s Engagement Rings

Materials

Diamond, Platinum

Exceptional Flawless 4.12 Carat GIA Certified Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
An exquisite investment grade emerald cut diamond ring with perfect proportions FLAWLESS clarity and E color with excellent polish and excellent symmetry. This ring has been handmad...
Category

2010s Italian Modern Engagement Rings

Materials

Agate, Diamond, White Diamond, Emerald, Platinum

Golconda Type IIA GIA Certified 12 Carat Round Brilliant Cut Diamond Ring
By Antinori Fine Jewels
Located in Rome, IT
This diamonds are regularly knocking down auction records. Gems of this type are often called “Golconda” diamonds after the famous Indian mines that supplied a majority of the world...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

Flawless Type 2A 5.12 Ct Oval Brilliant Diamond Platinum Ring Investment Grade
By Antinori Fine Jewels
Located in Rome, IT
An amazing and huge diamond measuring 12.38x8.13 mm GIA type IIA GIOCONDA TYPE D COLOR FLAWLESS CLARITY EXCELLENT SYMMETRY EXCELLENT POLISH NONE FLUORESCENCE
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

EXCEPTIONAL GIA Certified 12.88 Carat Round Brilliant Cut Diamond Ring VS1
By Antinori Fine Jewels
Located in Rome, IT
GIA Certified 12.88 Carat Round Brilliant Cut Diamond Ring. The main stone is an investment grade diamond I Color VS1 Clarity Triple Excellent Cut Consider the diamond is huge and...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Platinum

12.88 Carat All GIA Certified Three-Stone Diamond Ring
By Diana M. Jewels
Located in New York, NY
Custom designed diamond ring consisting of center GIA certified pear cut diamond weighing 10.87 carats J/VS2 and accented by two GIA certified pear cut diamonds on each side, wei...
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 4.12 Carat G SI1 Oval Cut Diamond 3-Stone Ring
By Shreve, Crump & Low
Located in Boston, MA
This oval cut diamond ring is offered by Shreve, Crump & Low. This 4.12 carat GIA certified G SI1 Oval cut diamond measuring 11.75 x 9.02 x 5.68mm is custom set in a handcrafted Shre...
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

Shreve, Crump & Low GIA Certified 8.04 Carat F S12 Round Brilliant Diamond Ring
By Shreve, Crump & Low
Located in Boston, MA
This diamond solitaire ring is offered by Shreve, Crump & Low. This 8.04 carat GIA certified F SI2 round brilliant cut diamond measuring 12.78 - 12.83 x 7.91mm is custom set in a han...
Category

2010s American Engagement Rings

Materials

Diamond, Platinum

J. Birnbach GIA Certified 4.12 Carat F SI1 Emerald Cut Diamond Art Deco Ring
By J. Birnbach
Located in New York, NY
This breathtaking, vintage ring from the J. Birnbach collection features a GIA certified 4.12 carat emerald cut diamond of F color and SI1 clarity... As a 100% eye-clean SI1, this st...
Category

20th Century American Art Deco Engagement Rings

Materials

Diamond, Platinum

Certified Colombian Emerald 12.9 Carat and Diamonds Fleur-de-Lis Design Ring
Located in London, GB
Emerald and diamond ring set in platinum. Centering a natural vivid green emerald in a rectangular shape and the shoulders resemble fleur-de-lis whilst embellished with round brillia...
Category

2010s British Modern Engagement Rings

Materials

Diamond, Emerald, Platinum

1.12 Carat Diamond Three-Stone Platinum Engagement Ring
Located in Stamford, CT
Three princess cut diamond engagement ring in a three stone platinum setting. crt 1 Center diamond 1.12cts F, SI1, 2 Princess cut diamonds Approx. .40cts total F, VS2 to SI1 Platin...
Category

1990s Modern Three-Stone Rings

Materials

Diamond, Platinum

Amazing 3.12 Carat Natural Sapphire Diamond platinum Engagement Ring
Located in New York, NY
This elegant platinum ring is centered with a natural cushion cut intense blue sapphire that weighs 3.12ct. The center stone is accentuated by sparkling old mine cut diamonds weighin...
Category

20th Century Cluster Rings

Materials

Diamond, Sapphire, Platinum

Fancy Yellow 1.12 Carat Oval Cut Diamond Engagement Platinum Ring
By Simon Ardem
Located in New York, NY
Fancy Yellow Diamond ring. Center stone: 1.12ct Oval cut Fancy Yellow SI1 diamond. Side stones: .32ct H-I-J VS1-SI1 Brilliant round diamonds. Total carat weight: 1.44ct. Metal: Plati...
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

Vintage 10.12 Carat Aquamarine and Diamond Platinum Cocktail Engagement Ring
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage French 10.12 carat aquamarine and 0.20 carat diamond, platinum cocktail ring; part of our diverse gemstone jewelry and estate jewelry collecti...
Category

20th Century French Cocktail Rings

Materials

Aquamarine, Diamond, Platinum

5.12 Carat Cushion Blue Sapphire Diamond Three-Stone Engagement Ring in Platinum
Located in NEW YORK, NY
Showcases a Cushion cut, Vibrant color Blue Sapphire weighing 5.12 carats, flanked by two brilliant cut half moon diamonds weighing 0.89 carats total. Elegantly set in a polished pla...
Category

21st Century and Contemporary Modern Three-Stone Rings

Materials

Diamond, Blue Sapphire, Platinum

12.59 Total Carat Sapphire and Diamond Halo Vintage Style Ladies Engagement Ring
Located in New York, NY
12.59 Total Carat Sapphire and Diamond Halo Ladies Engagement Ring. GIA Certified A true classic, this dazzling sapphire and diamond ring will draw attention wherever it goes. This ...
Category

2010s American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

Antique Art Deco 1.12 Carat Diamond Platinum Engagement Ring
Located in Tampa, FL
An original antique engagement ring showcasing a 1.12ct. European cut center diamond with SI1 clarity and L color. The mounting is fabulous holding .50ct. apx. T.W. of baguette and s...
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

6.12 Carat Oval Cut Aquamarine Diamond Halo Platinum Engagement Ring
Located in Los Angeles, CA
We present this striking, Aquamarine Halo Engagement Ring skillfully crafted from Platinum symbolizing everlasting love and commitment! The center stone carried on this piece is a...
Category

2010s American Engagement Rings

Materials

Aquamarine, Diamond, Platinum

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12 Carat Platinum Engagement Ring For Sale on 1stDibs

Surely you’ll find the exact 12 carat platinum engagement ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. Our collection of these items for sale includes 86 vintage editions and 83 modern creations to choose from as well. If you’re looking for a 12 carat platinum 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 20th Century while another version may have been produced as recently as the 21st Century. There have been many well-made iterations of the classic 12 carat platinum engagement ring over the years, but those made by Tiffany & Co., J. Birnbach and Antinori Fine Jewels 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 emerald cut and old european cut alternatives. Finding a 12 carat platinum engagement ring for sale for women should be easy, but there are 41 pieces available to browse for unisex as well as men, too.

How Much is a 12 Carat Platinum Engagement Ring?

Prices for a 12 carat platinum engagement ring can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,495 and can go as high as $1,350,000, while this accessory, on average, fetches $28,475.

Finding the Right Engagement Rings for You

Shopping for the right antique, new or vintage engagement ring can prove daunting.

Whether you’re looking for that perfect Art Deco engagement ring, an antique Edwardian period engagement ring or a fashionable contemporary alternative, it’s important to choose a style that speaks to you.

Rings have long been signifiers of marriage and committed relationships. The modern diamond engagement ring can be traced back to 1477, when Archduke Maximilian of Austria commissioned an expensive diamond ring for his betrothed. Diamond rings subsequently became extremely popular among the European aristocracy. Later, during the Victorian era, the popularity of diamond engagement rings had filtered down to the middle class, owing to the increasing accessibility — and affordability — of gold and diamonds. 

Victorian-era engagement rings were simple, frequently set in rose or yellow gold. The diamonds were five-set in a band or solitaire. In 1886, Tiffany debuted its innovative six-prong diamond solitaire engagement ring, while Cartier’s Solitaire 1895 engagement ring resembled delicate lace. Victorian-era engagement rings also saw other gemstones accompanying diamonds — small seed pearls and moonstones were popular. Other sentimental and romantic motifs such as hearts and stars took hold as well.

Edwardian and, afterward, Art Deco engagement rings that followed in the wake of Queen Victoria’s death in 1901 would be characterized by complex, geometric designs and platinum settings. Owing to the Art Nouveau movement, nature was a major theme for Edwardian jewelry, while the diamond ring designs of the Art Deco period were inspired by Cubism as well as ancient Egypt. Art Deco engagement rings are bold and colorful and feature gems cut in nontraditional ways. 

Engagement rings designed after World War II were intended to be simpler and focused on the beauty of the diamond. In 1947, De Beers Consolidated Mines, with the support of Philadelphia agency N.W. Ayer & Son, introduced the slogan “A diamond is forever” in a marketing campaign that emphasized a connection between diamonds and romance. Diamond sales skyrocketed, and diamond engagement rings became intertwined with the post–World War II marriage boom — which coincided with the ascension of specific diamond cuts. The round brilliant cut, which consists of an astounding 58 facets, continues to be the most popular cut to this day. Jewelers such as Harry Winston had already gained a reputation for his talents by the time the De Beers campaign debuted, and he is said to have favored emerald-cut diamonds

For everything from understanding the 4Cs to choosing between antique, vintage, contemporary and custom styles, get expert tips to help you find just the right ring — see our engagement ring buying guide.

When you're ready to mark your momentous occasion, find a vast collection of engagement rings on 1stDibs.