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14 Karat White Gold Princess Cut Diamond Engagement Ring
Located in Washington Depot, CT
engagement ring features seven round brilliant cut diamonds (center: .51 ct.) set in classic 14K white gold
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

14k White Gold Diamond Necklace "Smile"
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
Country of Origin:United States Total Carat Weight:APPROX 0..51 CT Style:Pendant WEIGHT:5.30 GR
Category

21st Century and Contemporary American Contemporary Chain Necklaces

Materials

Diamond, White Gold, 14k Gold

14 Karat White Gold Diamond Engagement Ring
Located in Washington Depot, CT
. Approximate total diamond weight: .51 ct. Diamond color: I Diamond clarity: SI1-I1 Ring Size: 6 Weight
Category

20th Century Engagement Rings

Materials

Diamond, White Gold

14 Karat White Gold Diamond Wedding Band Ring
Located in Washington Depot, CT
weight: .51 ct. Diamond clarity: SI1-VS2 Ring Size: 5.75 Weight: 2.2 gr./ 1.4 dwt. Stamped: 14K Very
Category

20th Century Wedding Rings

Materials

Diamond, White Gold

14 Karat White Gold Princess Cut Diamond Earrings
Located in Washington Depot, CT
diamond weight: .51 ct. Diamond color: J-K Diamond clarity: SI1 Size: 4 mm Weight: 0.6 dwt
Category

20th Century Stud Earrings

Materials

Diamond, White Gold

14 Karat White Gold Black and White Diamond Earrings
Located in Washington Depot, CT
weight: .51 ct. Diamond color (white): J-K Diamond clarity: SI1 ( white ) , I1 (Black) Size: 20 mm x 8
Category

20th Century More Earrings

Materials

Diamond, White Gold

GIA Certified 51.00 Carat Natural Fancy Intense Yellow Diamond
Located in Massafra, IT
Turning dreams into really. These magnificent 51 ct yellow diamond, is the epitome of luxury and
Category

21st Century and Contemporary Loose Gemstones

Materials

Yellow Diamond

14 Karat White Gold Diamond Halo Engagement Ring and Wedding Band Set Ring Size
Located in Washington Depot, CT
: .51 ct. Diamond color: G-I Diamond clarity: SI1-SI2 Ring Size: 7 Weight: 5.7 gr./ 3.6 dwt
Category

20th Century Wedding Rings

Materials

Diamond, White Gold

Asprey London Set Necklace & Earrings Coral&Diamond, Gübelin, Estate Sultan Oman
By Asprey London
Located in Antwerp, BE
Coral, 51 ct. Diamonds from Estate of His Majesty The Sultan Of Oman Qaboos Bin Said . Necklace
Category

20th Century British Artisan Pendant Necklaces

Materials

Coral, Diamond, Platinum

Antique Art Deco Platinum Old Euro Faint Pink Diamond Three Stone Ring - GIA
Located in Great Neck, NY
: Platinum Weight: 2.7 Grams  Size: 5 1/2 Center Diamond: .51 ct - GIA # 2225305945 Color: Faint Pink
Category

Vintage 1920s Art Deco Three-Stone Rings

Materials

Diamond, Pink Diamond, Brown Diamond, Platinum

AIG Certified Ct 51 of Colombia Emerald on Ring
Located in Massafra, IT
So unforgettable heart cut Colombia emerald 51,00 carats on 18k gold ring with round cut brilliant diamonds 💎. Exceptional quality and clarity. Come with important AIG gemological r...
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Emerald, 18k Gold

Diamond Tennis Bracelet 18k White Gold Diamond 3.00 Ct/51 Pcs
By Natkina
Located in Montreux, CH
BRACELET 18K White Gold Diamond 3.00 Cts/51 Pcs
Category

Mid-20th Century Tennis Bracelets

Materials

Diamond, White Gold

Exquisite Ct 51 of Natural Mother of Pearls and Diamonds on Earrings
Located in Massafra, IT
So chic and original flowers design in 18k gold , with 3.82 Carats Diamonds G/SI1 , and 51 Carats
Category

21st Century and Contemporary More Earrings

Materials

Diamond, Pearl, 18k Gold

Victor Mayer Ring Red Vitreous Enamel 18k White Gold 51 Diamonds 1.20 ct
By Victor Mayer
Located in Pforzheim, DE
, 51 diamonds total 1.20 ct, G VS brilliant cut Reference: V1212/RT/00/00/101 Description: 18k white
Category

2010s German Contemporary Cocktail Rings

Materials

Diamond, White Gold, Enamel, 18k Gold

Hammered Gold Collier, 18 kt hammered white gold, 51 diamonds 8.87 ct TW/SI
By Colleen B. Rosenblat
Located in Hamburg, DE
An extraordinary high-class hammered white gold necklace with 51 brilliant-cut diamonds 8,87 ct TW
Category

Early 2000s German More Necklaces

Materials

18k Gold, Rhodium, White Gold

Mid Century 67.00 Ct Red Coral 2.90 CT Diamond Rare Brooch Pendant
Located in Napoli, IT
blood red Mediterranean coral of approx 67.00 Ct – 51 mm. x 18.5 mm. – 100 brilliant cut diamonds
Category

Mid-20th Century Italian Retro Pendant Necklaces

Materials

Coral, Diamond, 18k Gold

Zorab Creation 18 kt. Gold Necklace with 4 ct. Diamonds & 23 ct. Semi Pr Stones
By Zorab Creation
Located in Antwerp, BE
Zorab Creation 18 kt. Gold Necklace with 4 ct. Diamonds & 23 ct. Semi Precious Stones Necklace: 20
Category

21st Century and Contemporary American Artisan Drop Necklaces

Materials

Amethyst, Citrine, Diamond, Pearl, Tourmaline, Gold, 18k Gold

Diamonds ct 0.72, Contemporary Engagement Ring Made in Italy
Located in Rome, IT
ct. Contemporary ring in 18 Kt white gold. The ring is made in Italy. Total Diamonds Weight: ct
Category

21st Century and Contemporary Italian Contemporary Wedding Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

Art Deco 12.60 Ct. Moonstone Diamond Long Drop earrings
Located in Napoli, IT
are old cuts .96 CT between the smaller and bigger white and sparkly rated G/H VVS/VS Measures are 51
Category

Vintage 1920s European Art Deco Dangle Earrings

Materials

Diamond, Moonstone, 18k Gold

Natural GIA Certified 0.77 Ct. Alexandrite Cocktail Ring
Located in New York, NY
carat ►Style # TTR-94 ►Item No.: T45/6240/51 ►Estimated Retail Value: $8500 ►Jewelry has been
Category

21st Century and Contemporary Victorian Cocktail Rings

Materials

Alexandrite, Diamond, 14k Gold, Yellow Gold

Platinum Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
: 51 Minimum Color: G Minimum Clarity: VS2 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Platinum

Bague marguerite en or, platine et diamants 1, 2 ct
Located in PARIS, FR
qualité G SI1 sans inclusions visibles à l'oeil nu et pesant environ 0,4 ct dans un entourage de diamants
Category

Vintage 1950s European Modern Engagement Rings

Materials

Diamond, 18k Gold

Four Prong 7 CT TW Natural Diamond Tennis Bracelet
Located in Dubai, DU
&, Conflict free. DIAMOND SHAPES : Round DIAMOND WEIGHT (MINIMUM CTS.) : 7.14 DIAMOND PCS. : 51 DIAMOND
Category

2010s Tennis Bracelets

Materials

Diamond, 18k Gold

Victor Mayer Opera Silver Enamel Ring 18k White Gold with 51 Diamonds
By Victor Mayer
Located in Pforzheim, DE
well as diamonds. Ring, 18k white gold, vitreous enamel, 51 diamonds total 1.20 ct, G VS brilliant
Category

2010s German Contemporary Band Rings

Materials

Diamond, White Gold, 18k Gold

Art Deco 64.00 Ct Amethyst plus more and Diamond Bangle
Located in Napoli, IT
totalling approx. 1.40 Ct (G-VVS/SI) Measures: front is 27.5 x 51 mm. (h. x w.) – will fit any wrist at a
Category

Vintage 1930s European Art Deco Bangles

Materials

Amethyst, Diamond, 18k Gold, Platinum

Anello forma tondo in oro bianco 9k con diamante 0.04 ct.
By Botta gioielli
Located in Milano, IT
brillante di 0.04 ct. Misura dell'anello: italiana 11, francese 51, UK L 1/2, americana 5.5. L'anello può
Category

21st Century and Contemporary Italian Contemporary Fashion Rings

Materials

Diamond

Mauboussin - 18 Carat. White Gold - Ring - 1.00 ct Diamond - Jade
By Mauboussin
Located in Saint Ouen, FR
Mauboussin - 18 kt. White gold - Ring - 1.00 ct Diamond - Jade Size: 51 - Total weight: 21 g
Category

Early 2000s French More Rings

Materials

Diamond, Jade, 18k Gold, Yellow Gold

Opening No. 51 (Modern, Hudson River Landscape Painting in Romanticist Style)
By Leigh Palmer
Located in Hudson, NY
Bachelier-Cardonsky Gallery, Kent CT 2008 Bachelier-Cardonsky Gallery, Kent CT Four Starr Gallery
Category

21st Century and Contemporary Modern Landscape Paintings

Materials

Canvas, Oil

Cartier 1895 Diamond Engagement Ring in Platinum H VVS1 0.3 CT
By Cartier
Located in New York, NY
Cartier 1895 Diamond Engagement Ring in Platinum H VVS1 0.3 CT PRIMARY DETAILS SKU: 113982
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Platinum

Estate Double Rams Head 2.30 Ct Diamond 18 KT Gold Bangle
Located in Napoli, IT
cut Diamonds for approx 2.30 CT – TCW (G/H VVS/VS) Italian Hallmarks for 18 KT gold it is 92.4 Grams
Category

Vintage 1970s Italian Contemporary Bangles

Materials

Diamond, Gold, 18k Gold

Natural GIA Certified 0.35 Ct Brazillian Alexandrite & Diamond Vintage Ring
Located in New York, NY
No.: 901/3096/51 ►Estimated Retail Value: $6500
Category

21st Century and Contemporary Brazilian Victorian Cocktail Rings

Materials

Alexandrite, Diamond, White Gold

14k Rose Gold Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
: 51 Minimum Color: H Minimum Clarity: SI2 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

14k Yellow Gold Marielle Diamond Ring '1/4 Ct. tw'
Located in San Francisco, CA
Diamonds: 51 Minimum Color: H Minimum Clarity: SI2 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

18k Yellow Gold Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
Diamonds: 51 Minimum Color: G Minimum Clarity: SI1 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Yellow Gold

14k White Gold Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
Diamonds: 51 Minimum Color: H Minimum Clarity: SI2 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

18k Rose Gold Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
: 51 Minimum Color: G Minimum Clarity: SI1 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, Rose Gold

18k White Gold Marielle Diamond Ring '1/4 Ct. Tw'
Located in San Francisco, CA
Diamonds: 51 Minimum Color: G Minimum Clarity: SI1 Rhodium Plate: Yes Sizable: Yes
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, White Gold

Semi-rigid bracelet with a row of 0.64 ct of Diamonds.
Located in Rome, IT
carat weight of 0.64 ct. ts frame is made up of various segments that make it elastic and comfortably
Category

21st Century and Contemporary Italian Modern Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Vintage Tiffany & Co. Ring 925/- Sterling Silver and 18 ct. Gold
By Tiffany & Co.
Located in Münster, DE
A ring from Tiffany & Co. made of 925/- sterling silver and 18 ct. yellow gold that is as special
Category

Vintage 1980s North American Modern Collectible Jewelry

Materials

Gold, Silver

Eleanor 12.09 Ct Tanzanite Dangle Earrings with Diamonds in 14K White Gold
By VR Jewels
Located in Houston, TX
> Gemstone - Tanzanite > Gemstone Weight - 12.09 ct > Gemstone Shape - Oval > Gemstone Pcs - 26 > Gemstone
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

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

Stunning 18K White Gold Diamond Spiral Ring with 0.05 ct Natural Diamonds
Located in רמת גן, IL
Classic Spiral Heart Design in 18K White Gold Diamond Ring with 0.05 ct Diamond Main Stone -1
Category

2010s Singaporean Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

18 kt. White Gold Eternity Ring With 1.92 ct. Princess & Brilliant Cut Diamonds
Located in Antwerp, BE
cut diamonds, together approx. 1.92 ct. Material: 18 kt white gold Ring size: 51 EU / 5.75 US
Category

21st Century and Contemporary Italian Modern Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Multifaceted 51 Carat Citrine Quartz with Diamonds and 18 Karat White Gold Ring
By Pradera Irama
Located in Bilbao, ES
.n. MEASURES ◘ Gold Weight 24 gr. ◘ Diamonds 2,91 ct ◘ Ring size on request around europe 56,5 US 8
Category

2010s Spanish Contemporary Cocktail Rings

Materials

Diamond, Citrine, Quartz, 18k Gold, White Gold

Norma B. Flanagan (20th C. CT) Hand Made Steel Geometric Outdoor Sculpture
Located in Bridgeport, CT
Silvermine Guild in New Canaan CT. Diam. 32", H. 51", Depth 27" Condition: Very good condition with expected
Category

20th Century American Mid-Century Modern Abstract Sculptures

Materials

Iron

Fabulous 18kt White Gold 2.51 Ct Round Ruby with Certificate & 0.44ct Diamonds
Located in Antwerp, BE
: 18kt white gold Ring size: 51 EU / 5.75 US ( can be resized for free) Total weight: 7.3 gram / 0.260
Category

21st Century and Contemporary Belgian Artisan Signet Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

18kt White Gold Heart Pendant With 17 ct. Diamonds With 18kt White Gold Necklace
Located in Antwerp, BE
Gorgeous 18kt White Gold Heart Pendant With 17 ct. Top Quality Diamonds With 18kt White Gold
Category

21st Century and Contemporary Belgian Artisan Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

14 kt. Yellow Gold Set Ring & Necklace Pendant, Heart shaped with 2 ct. Diamonds
Located in Antwerp, BE
Stunning 14 kt. Yellow Gold Set Ring and Necklace Pendant, Heart shaped with 2 ct. Diamonds Ring
Category

21st Century and Contemporary European Modern Signet Rings

Materials

Diamond, 18k Gold, Yellow Gold

Beauvince Classic Diamond Tennis Bracelet 4.40 Ct GH VVS-VS Diamonds in Gold
By Beauvince Jewelry
Located in New York, NY
Weight: 4.40 ct No. of Diamonds: 51 Average Diamond Weight: 0.09 ct Diamond Color: G - H Diamond
Category

2010s Tennis Bracelets

Materials

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

Aimée Art Deco Style 2.95 Ct. Diamond Bracelet in 18K White Gold
Located in Bangkok, TH
mm. Number: 51 Weight: 2.95 Carat (approx. in total) This bracelet will be made to your order in 1-2
Category

21st Century and Contemporary Unknown Art Deco Link Bracelets

Materials

Diamond, 18k Gold, White Gold

Contrarié Ring with Hearts with Ct 1.08 of Diamonds, 18 Kt White Gold
Located in Rome, IT
the ring, for a total weight of 1.08 ct. The diamonds are set in the opposite hearts and on the shank
Category

21st Century and Contemporary Italian Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Tiffany & Co. Tiffany Setting Diamond Solitaire Engagement Ring 1.00 Ct H/VVS1
By Tiffany & Co.
Located in London, GB
a size UK L/US 5.5/EU 51 but can be adjusted for a perfect fit with a gross weight of 6.5 grams. The
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum

18K White Gold 3/8 Ct Diamond with Sapphire & Tsavorite Gemstone Tennis Bracelet
Located in New York, NY
Blue Sapphire and Green Tsavorite Gemstone Count: Total 51 Gemstones Includes 7 Blue Sapphire Round and
Category

21st Century and Contemporary Thai Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, Blue Sapphire, Tsavorite, Brown Diamond, 18k Gol...

18K White Gold 3/8 Ct Diamond with Sapphire & Tsavorite Gemstone Tennis Bracelet
Located in New York, NY
Blue Sapphire and Green Tsavorite Gemstone Count: Total 51 Gemstones Includes 7 Blue Sapphire Round and
Category

21st Century and Contemporary Thai Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, Brown Diamond, Blue Sapphire, Tsavorite, 18k Gol...

Captivating 18k White Gold Halo Ring with 1.86 Ct Natural Pink Diamonds GIA Cert
Located in רמת גן, IL
diamonds side stones of total: 0.20 ct. cut: cushion color: Fancy light pink clarity: Vs2 32 diamonds
Category

2010s Israeli Cluster Rings

Materials

Pink Diamond, 18k Gold, White Gold

Emrich & Schorsch 1920 New York Graduated in Platinum and 18kt Gold with 4.42 Ct
Located in Miami, FL
: For the month of April. Weight: 7.25 Grams, (4.65 Dwt). Measurements: A lenght of 20.07 Inches (51
Category

Vintage 1920s American Art Deco Chain Necklaces

Materials

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

Semi-rigid bracelet with a row of 0.75 ct of Diamonds. Gold 18 Kt. Made in Italy
Located in Rome, IT
carat weight of 0.75 ct. I ts frame is made up of various segments that make it elastic and comfortably
Category

21st Century and Contemporary Italian Modern Tennis Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

1900 Antique ring with sapphires and diamond roses
Located in PARIS, FR
Stones: 5 sapphires: 0.89 ct and 24 rose diamonds: 0.48 ct Material: 18k gold Weight: 3.5g Period
Category

Antique Early 1900s Fashion Rings

Materials

Diamond, Sapphire, 18k Gold

Garavelli 18 Karat White Gold Diamonds Engagement Ring
By Garavelli
Located in Valenza, IT
Garavelli 18kt White Gold Diamonds Engagement Ring, size 51 Diamond round center stone weighting ct
Category

2010s Italian Contemporary Engagement Rings

Materials

White Diamond, Diamond, 18k Gold, White Gold

Yellow sapphire and diamonds ring in 18k gold
Located in PARIS, FR
Stones: Yellow sapphire: 0.76 ct, 10 diamonds: 0.35 ct and 4 baguette diamonds: 0.26 ct Material
Category

Early 2000s Wedding Rings

Materials

Diamond, Yellow Sapphire, 18k Gold

Three 18k Yellow Gold Eternity Wedding Rings With Rubies Sapphires Emeralds
Located in Milano, IT
ct. Una con 7 rubini di circa 1 ct. Una con 7 zaffiri di circa 1 ct. Ogni pietra misura di diametro 3
Category

Vintage 1970s Unknown Retro Engagement Rings

Materials

Emerald, Ruby, Blue Sapphire, 18k Gold, Yellow Gold

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51 Ct For Sale on 1stDibs

Find the exact 51 ct you’re shopping for in the variety available on 1stDibs. Frequently made of gold, 18k gold and white gold, this item was constructed with great care. Our collection of these items for sale includes 182 vintage editions and 196 modern creations to choose from as well. Finding the perfect 51 ct may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. There have been many well-made iterations of the classic 51 ct over the years, but those made by Cartier, Garavelli and Tiffany & Co. are often thought to be among the most beautiful. While most can agree that any 51 ct from our collection can easily elevate most outfits, but the choice of a diamond version from the 293 available is guaranteed to add a special touch to your ensemble. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and oval cut cut versions available here, too. When shopping for a 51 ct, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 51 Ct?

On average, a 51 ct at 1stDibs sells for $4,001, while they’re typically $1 on the low end and $485,000 for the highest priced versions of this item.