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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, 14k Gold, White 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

18 Karat Yellow Gold Three Diamond Pendant Necklace #19755
Located in Washington Depot, CT
. Approximate total diamond weight: .41 - .51 ct. Diamond color: G - H Diamond clarity: Si1-VS2 *Stone
Category

20th Century Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

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

Platinum and Diamond Vintage Style Ring Size 6.5 #21195
Located in Washington Depot, CT
aesthetic. Width: 11 mm. Shank: 1.6 mm. Approximate total diamond weight: .51 ct. Diamond color: G-H
Category

20th Century Contemporary Engagement Rings

Materials

Diamond, Platinum

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, 18k Gold, Enamel

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

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, 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

Beauvince Classic Diamond Tennis Bracelet (4.95 ct Diamonds) in White Gold
By Beauvince Jewelry
Located in New York, NY
that in the image. Total Diamond Weight: 4.95 ct  No. of Diamonds: 51 Average Diamond Weight: 0.10 ct
Category

2010s Tennis Bracelets

Materials

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

Garavelli 18 Karat Rose Gold Diamonds Engagement Ring
By Garavelli
Located in Valenza, IT
Garavelli 18kt Rose Gold Diamonds Engagement Ring, size 51 Diamond center stone weighting ct 1.14
Category

2010s Italian Contemporary Engagement Rings

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

AGL Certified 1.50 Carat Fancy Green SI Clarity Diamond Ring
Located in บางรัก, TH
Surrounding Stones: Diamonds 1) White Diamonds Carat weight: 0.737 ct (51 pcs) Color: F Clarity: VS1
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Rosior One-off Sapphire and Diamond Cocktail Ring set in Yellow Gold
By Rosior
Located in Porto, PT
weighing 0,43 ct; - 66 Green Sapphires weighing 0,79 ct; - 63 Blue Sapphires weighing 0,68 ct; - 51 Pink
Category

21st Century and Contemporary Portuguese Cocktail Rings

Materials

Blue Sapphire, Purple Sapphire, Yellow Sapphire, Pink Sapphire, Sapphire...

AGL Certified 0.203 Carat Fancy Pink VS Clarity Diamond Ring
Located in บางรัก, TH
Surrounding Stones: Diamonds 1) White Diamonds Carat weight 0.355 ct (51 pcs) Color: F Clarity: VS1/VS2
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

18K Yellow Gold 15mm South Sea Pearl & Diamond Pendant Necklace
Located in Kowloon, HK
18K Yellow Gold 15mm South Sea Pearl & Diamond Pendant Necklace 51 Diamonds - 0.52 CT South Sea
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, South Sea Pearl, 18k Gold, Yellow Gold

Pomellato Duna Ring with Diamonds in 18 Karat Yellow Gold
By Pomellato
Located in Lucerne, CH
diamonds, brilliant cut, tot. ca. 1.20 ct Size: 51 EU / 5.75 US Weight: 39.90 gr.
Category

21st Century and Contemporary Italian Modern Cocktail Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Gübelin Certified 1.33 Carat Colombian Emeralad Ring with Diamonds in Palladium
By Gubelin
Located in Lucerne, CH
cut, 2.10 ct. Size: EU 51 / US 5.75 Weight: 8.15 gr.
Category

21st Century and Contemporary Swiss Modern Cocktail Rings

Materials

Diamond, Emerald, Palladium

Capsule Soft Every Day Tennis Diamond 18K Gold Bracelett for Her/Him
By Natkina
Located in Montreux, CH
18K gold and dazzling diamonds, is a testament to timeless artistry. 18K white gold Diamond 51-RD
Category

2010s Modern Bracelets

Materials

Diamond, 18k Gold

Alliance Ring with Sapphire in 18 karat White Gold by Gübelin
By Gubelin
Located in Lucerne, CH
: Gübelin Hallmark Assay mark: 750 18 Karat white gold 26 sapphires, baguette cut, tot. 4.00 ct. Size: 51
Category

20th Century Swiss Modern Band Rings

Materials

Sapphire, Blue Sapphire, White Gold

Rosior Multicolor Gemstone Hoop Earrings set in Yellow Gold
By Rosior
Located in Porto, PT
with 1,43 ct; - 45 Yellow Sapphires with 0,86 ct; - 51 Pink Sapphires with 1,03 ct. Unique Piece
Category

21st Century and Contemporary Portuguese Contemporary Drop Earrings

Materials

Yellow Sapphire, Pink Sapphire, Blue Sapphire, Sapphire, Emerald, Gold, ...

14K Yellow Gold 8.28ct Pink Tourmaline & Diamond Pendant Necklace Oval Tourma
Located in Holtsville, NY
: Eye Clean * Diamonds: * Carat Weight: 0.43 ct * Stone Count: 51 * Shape: Round Brilliant * Color Grade
Category

2010s American Artist Pendant Necklaces

Materials

Diamond, Tourmaline, 14k Gold, Yellow Gold

18 K Rose Gold Pendant Rose Quartz Diamonds with Necklace
Located in Zurich, Zollstrasse
surrounded by 51 round brilliant cut Diamonds with a total weight of 0.75 ct. Length of the chain: 45 cm
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Quartz, 18k Gold, Rose Gold

Retro Grasshopper Diamond Plique a Jour Pendant Brooch 18 KT Gold
Located in Napoli, IT
: 3 brilliant cut diamonds totalling approx .06 Ct Measures: 51 mm. x 26 mm. (h. x w.) without bail
Category

Vintage 1940s European Retro Pendant Necklaces

Materials

Diamond, 18k Gold, Platinum

18 Karat Rose Gold Diamond Delicate Baguette Bangle Bracelet
Located in Los Angeles, CA
, and delicate styles. 4 Round Diamonds = 0.03 ct 51 Baguette Diamonds = 1.59 ct 18KW = 11.75 g
Category

2010s American Bangles

Materials

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

Victorian Large Amethyst Diamond Fly Pearl Chain Necklace
Located in Napoli, IT
amethyst of approx 4.30 Ct (11 x 9 mm.) – 1 old mine cut diamond of approx .30 Ct – 51 rose cut diamonds
Category

Antique 1860s European Victorian Pendant Necklaces

Materials

Amethyst, Diamond, Pearl, 18k Gold

Rado Sintra Jubile Limited Edition Pink Ceramic Diamonds Ladies Watch R13652942
By RADO
Located in New York, NY
Diamonds in Total (Approx. 0.3 Ct.) and 51 Pink Sapphires (Approx. 0.15 Ct.). Covered by 3-year Chronostore
Category

21st Century and Contemporary Swiss Wrist Watches

Natural White Agate Ring with 18 Carat Yellow Gold, Cushion
Located in Kirschweiler, DE
arises an individuel and exclusive eyecatcher. ringsize: 5 1/2 (51) White Agate: 35,5 ct. 18kt Yellow
Category

2010s German Arts and Crafts Cocktail Rings

Materials

Agate, Yellow Gold, 18k Gold, Gold

Rado Sintra Jubile Limited Edition Pink Ceramic Diamonds Ladies Watch R13652942
By RADO
Located in New York, NY
Diamonds in Total (Approx. 0.3 Ct.) and 51 Pink Sapphires (Approx. 0.15 Ct.). Covered by 3-year Chronostore
Category

21st Century and Contemporary Swiss Wrist Watches

Invisible Set Halo Brilliant Diamond Engagement Ring in 18kt Solid Yellow Gold
By VR Jewels
Located in New York, NY
Gemstone - Diamond Diamond weight - 0.71 ct Diamond pcs - 51 Gross weight - 3.36 Grm Shank width - 1.9 mm
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

White Diamond .51 Ct. and 22 Karat Yellow Gold Pointed High Dome Ring
By Deborah Meyers Experience
Located in New York, NY
Called the Papal Ring XVII, this 22k yellow gold elongated dome is a contemporary take on the medieval ecclesiastical rings worn by clerics. The warm buttery 22k gold works beautifu...
Category

2010s Contemporary Dome Rings

Materials

Diamond, White Diamond, 22k Gold, Yellow Gold, Gold

Diamond Cocktail Ring with Conflict Free Diamonds in 14 Karat
By Leo Ingwer
Located in New York, NY
This beautiful antique reproduction in 14 Karat white gold contains .51 ct. of G color SI1 clarity
Category

2010s American Romantic Cocktail Rings

Materials

Diamond, 14k Gold, White Gold

Certified Tahity Pearl Necklace with four handmade Interchangeable Clasps
By Berquin
Located in Brussel, BE
One Aquamarine interchangeable clasp of 51 ct! with pink golden interchangeable system inside. This
Category

2010s Belgian Contemporary Beaded Necklaces

Materials

Aquamarine, Diamond, Pearl, 18k Gold, White Gold, Yellow Gold, Palladium

Certified Pink Gold Knitted Mesh Necklace with four interchangeable Clasps
By Berquin
Located in Brussel, BE
interchangeable clasp system inside, and One Aquamarine interchangeable clasp of 51 ct! with pink golden
Category

2010s Belgian Contemporary Rope Necklaces

Materials

Aquamarine, Multi-gemstone, 18k Gold, Rose Gold

23.79 Carat Round/Emerald Cut Diamond 18K Gold Tennis Bracelet
By Sebastian Bernard
Located in Los Angeles, CA
Weight of diamonds: 23.79 Ct 51 Emerald Cut diamonds approximately 0.30 Ct each (VS/G-H) 102 Round
Category

2010s American Tennis Bracelets

Materials

Diamond, Emerald, 18k Gold

GIA Certified 3.17 Carat Pear Cut Diamond Ring
Located in Knightsbridge, GB
diamond ] Color: W-X Clarity: VS1 Total small fancy yellow diamond weight: 0.27 ct [ 51 diamonds ] Color
Category

2010s British Modern Engagement Rings

Materials

White Diamond, Yellow Diamond, Diamond, 18k Gold

White Gold Earrings with Pavé Diamonds Dragonflies 2 + 1
Located in Rome, IT
White gold earrings with pavé diamonds dragonflies 2 + 1. Composition: Gold 7,25 gr (18K) 51
Category

2010s Italian Contemporary Clip-on Earrings

Materials

Diamond, 18k Gold

Midcentury Pop Art Large Red Coral Diamond Brooch Pendant
Located in Napoli, IT
natural marquise cabochon cut ox blood red Mediterranean coral of approx 67.00 Ct - 51 mm. x 18.5 mm
Category

Vintage 1960s Contemporary Brooches

Materials

Coral, Diamond, 18k Gold

Fabergé Flirt 18 Karat White Gold, Enamel Blue Dial, US Clients
By Fabergé
Located in London, GB
ring. Gem-set bezel: 51 brilliant-cut diamonds (1.53 ct) Dial :Hand guilloché dial, blue enamel Hands
Category

2010s British Wrist Watches

Materials

Diamond, White Gold

Fabergé Flirt 18 Karat White Gold, Enamel Green Dial, US Clients
By Fabergé
Located in London, GB
-set bezel: 51 brilliant-cut diamonds (1.53 ct) Dial :Hand guilloché dial, green enamel Hands :Breguet
Category

2010s British Wrist Watches

Materials

Diamond, White Gold

Fabergé Flirt 18 Karat White Gold, Enamel Red Dial, US Clients
By Fabergé
Located in London, GB
-set bezel: 51 brilliant-cut diamonds (1.53 ct) Dial :Hand guilloché dial with red enamel Hands
Category

2010s British Wrist Watches

Materials

Diamond, White Gold

Tiffany & Co. Platinum and Diamond Round Engagement Ring E VS1 Triple Excellent
By Tiffany & Co.
Located in Middletown, DE
logo, serial number and the diamond size .51 ct. is inscribed inside the shank of the ring. This ring
Category

2010s American Engagement Rings

Materials

White Diamond, Platinum

Rare 51 Ct Aquamarine Diamond Gold Cocktail Ring
Located in Chicago, IL
measures 26.37 x 20.20 x 13.7 mm. Estimated total diamond weight is 0.86 ct. Weight – 20.06 grams. Ring
Category

Mid-20th Century Cocktail Rings

Materials

Aquamarine, Diamond, Gold, White Gold

Harry Winston Logo Platinum Round Diamond .51 ct FVVS2 Engagement Ring
By Tiffany & Co.
Located in New York, NY
Harry Winston engagement ring from the "Logo" collection finely crafted in platinum featuring the initials HW of the Harry Winston house on either side of the ring. These two initial...
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Jewels by Jacob White Gold Diamond and Blue Topaz Ring
By Jewels by Jacob
Located in Dallas, TX
CTW Center stone with .51 CT (64) Diamonds. Prong Set Stone with beautiful detail on the ring. Ring is
Category

Early 2000s Hong Kong Modern Fashion Rings

Materials

Diamond, Topaz, 14k Gold

Bella Campbell/Campbellian Rainbow Moonstone with Ruby and Diamond Ring in Gold
By Bella Campbell/Campbellian Collection
Located in Morristown, NJ
. Oval Rainbow Moon...
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Moonstone, Ruby, 18k Gold

14 Karat Pearl and Diamond Pendant Necklace
Located in Washington Depot, CT
. Suspended from a 14K white gold necklace. Circa 1920's. Approximate total diamond weight: .51 ct. Diamond
Category

20th Century More Necklaces

Materials

White Gold

Vintage 14 Yellow Gold Diamond Stud Earrings
Located in Washington Depot, CT
diamond weight: .51 ct. Diamond color: H Diamond clarity: I2 Size: 4 mm Weight: 0.5 dwt. / 0.8 gr
Category

20th Century Stud Earrings

Materials

Diamond, Yellow Gold

18 Karat White Gold Sapphire and Diamond Ring Size 7.5 #14882
Located in Washington Depot, CT
white gold. Width: 13 mm. Shank: 3 mm. Total sapphire weight: .72 ct. Total diamond weight: .51 ct
Category

20th Century Engagement Rings

Materials

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

14 Karat White Gold Diamond Wedding Band
Located in Washington Depot, CT
white gold. Shank measures 2 mm. Approximate total diamond weight: .51 ct. Diamond color: H-I Diamond
Category

20th Century Wedding Rings

Materials

Diamond, White Gold

18 Karat Yellow Gold Ruby and Diamond Ring #13905
Located in Washington Depot, CT
. Width: 13 mm. Shank: 4 mm. Total ruby weight: 1.56 ct. Total diamond weight: .51 ct. Diamond color: G
Category

20th Century Cocktail Rings

Materials

Diamond, Ruby, Yellow Gold

14 Karat White Gold Tanzanite and Diamond Ring #13912
Located in Washington Depot, CT
detailed 14K white gold. Width: 15 mm. Shank: 3 mm. Tanzanite weight: 1.42 ct. Total diamond weight: .51
Category

20th Century Cocktail Rings

Materials

Diamond, Tanzanite, White Gold

Rare Russian Demantoid Diamond Three-Stone Ring
Located in Chicago, IL
by two o.51 ct bright white diamonds (G color, VS1-2 clarity). The diamonds are set is white gold
Category

Mid-20th Century Russian Three-Stone Rings

Materials

Diamond, Garnet

Tiffany & Co. Double Soleste Platinum Diamond Engagement Ring 0.86 Carats Total
By Tiffany & Co.
Located in New York, NY
Tiffany & Co. Soleste engagement ring with a .51 ct cushion center , F Color, VS1 clarity finely
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

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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.