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Size 51

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Mauboussin Etoile Divine Gold Band Ring Size 51
By Mauboussin
Located in New York, NY
/SI The ring is a Size 51 or 5.5, not sizable. The ring weighs 11.4g The ring comes with Mauboussin
Category

21st Century and Contemporary French Contemporary Band Rings

Materials

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

Cartier White Gold Diamond & Ceramic Love Ring Size 51 B4207600
By Cartier
Located in London, GB
, totalling 0.74ct. Measuring 6.5mm in width and a UK size L/ US size 5 1/2/ EU size 51, the ring has a gross
Category

21st Century and Contemporary French Fashion Rings

Materials

Diamond, 18k Gold, White Gold

Cartier Love 18k White Gold Black Ceramic Diamond Ring Size 51
By Cartier
Located in Banbury, GB
Gold Stones Diamond Weight 7.7 g Ring Size 51 Condition Excellent Other Info Size EU 51 / US 5.75 / UK
Category

2010s French Band Rings

Materials

Diamond, 18k Gold, White Gold

Messika Butterfly Arabesque Diamond Ring 18K Blackened White Gold Size 51 US 5.5
By Messika
Located in New York, NY
. Ring size: 51 US 5.5. Top measurement: 26.7mm x 21.5mm. Total weight: 8.60 grams. Comes with the
Category

2010s Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Messika 0.27Cttw Plaque Butterfly Diamond Ring 18K White Gold Size 51 US 5.75
By Messika
Located in New York, NY
weighing 0.27 carat. Diamond color G and clarity VS. Ring size: 51 US 5.75. Band width: 2.5mm. Top
Category

2010s Modern Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Cartier Platinum Diamond Love Ring Size 51 B4046700
By Cartier
Located in London, GB
ring is a size UK L - EU 51 and has a gross weight of 11.27 grams. Comes complete with a RichDiamonds
Category

21st Century and Contemporary French Band Rings

Materials

Diamond, Platinum

Chopard Chopardissimo 18k White Gold Ring Size 51
By Chopard
Located in Dubai, Al Qouz 2
This ring from Chopard speaks luxury in a way that is minimal and elegant. It has been excellently crafted from 18k white gold. Set beautifully on the ring are cursive engravings of ...
Category

2010s German Contemporary Band Rings

Materials

White Gold

Chopard Chopardissimo 18k White Gold Ring Size 51
By Chopard
Located in Dubai, Al Qouz 2
This ring from Chopard speaks luxury in a way that is minimal and elegant. It has been excellently crafted from 18k white gold. Set beautifully on the ring are cursive engravings of ...
Category

2010s Italian Aesthetic Movement Band Rings

Cartier White Gold Full Diamond Love Ring Size 51 B4026000
By Cartier
Located in London, GB
Cartier screws and six round brilliant cut diamonds. Measuring 5.5mm in width, the ring is a size UK L
Category

21st Century and Contemporary Swiss Band Rings

Materials

Diamond, 18k Gold, White Gold

Hermés Rose Gold Diamond H d Ancre Size 51 Ring
By Hermès
Located in London, GB
measures 5mm in width and is a size UK L - EU 51 with a gross weight of 4.70 grams. The ring comes
Category

21st Century and Contemporary French Fashion Rings

Materials

Diamond, 18k Gold, Rose Gold

Piaget Possession Turquoise Diamond 18k Rose Gold Ring Size 51
By Piaget
Located in Dubai, Al Qouz 2
Show your love for fine artistry, and luxury accessories with this stunning creation from Piaget that is made from 18k rose gold. One of their most popular collections from Piaget is...
Category

2010s Swiss Contemporary Fashion Rings

Materials

Rose Gold

Cartier 1895 Diamond 18k Yellow Gold Solitare Ring Size 51
By Cartier
Located in Dubai, Al Qouz 2
Keep it classic and exquisite with this gorgeous Cartier ring. Crafted in 18k yellow gold and set with a brilliant solitaire, this ring boasts of excellent distinctiveness and artisa...
Category

2010s Italian Fashion Rings

Materials

Diamond, Yellow Gold

BVLGARI Intarsio Diamond Mother-of-Pearl Rose Gold Ring Size 51
By Bulgari
Located in New York, NY
: 0.82" (21mm) width, 1.22" (31mm) length. The ring size is 5.5 - EU 51. Non-resizable. Excellent
Category

Early 2000s Italian More Rings

Materials

Diamond, Rose Gold

Cartier White Gold Diamond Juste un Clou Ring Size 51 B4092700
By Cartier
Located in London, GB
0.13ct. A size UK L - EU 51 and this ring has a gross weight of 7.48 grams. Comes complete with a
Category

21st Century and Contemporary French Fashion Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Cartier love 18K White gold wedding ring Size 51 width 3.6mm
By Cartier
Located in New York, NY
Brand Cartier Love Occasion wedding Mint condition 18K White gold Ring size 5.75 Ring width 3.6mm
Category

21st Century and Contemporary Wedding Rings

Materials

18k Gold, White Gold

Cartier La Dona Citrine 18k Yellow Gold Band Ring Size 51 w/Paper
By Cartier
Located in Boca Raton, FL
Material: 18k yellow gold Ring Size: US: 5.5 European: 51 Weight: 19.4 gr
Category

21st Century and Contemporary French Modern Solitaire Rings

Materials

Citrine, 18k Gold, Yellow Gold

Chopard Happy Heart Wings Diamond Mother of Pearl 18k Rose Gold Ring Size 51
By Chopard
Located in Dubai, Al Qouz 2
Behold the Chopard Happy Heart Wings ring, a celestial marvel. Crafted with exquisite 18k rose gold, adorned with delicate floating diamond accents, and featuring a mesmerizing mothe...
Category

2010s Italian Fashion Rings

Materials

Diamond, Pearl, Rose Gold

Chanel Camellia Flower White Chalcedony Ring Yellow Gold 51
By Chanel
Located in Kobe, Hyogo
Ring Size: 51 US SIZE 5.5 UK SIZE K 1/2 Internal Diameter: 16.15 mm Measurement: 4 - 24 mm Width
Category

2010s French Cocktail Rings

Materials

Agate, 18k Gold

Hermes Chaine d'Ancre Enchainee Ring Small Model 18k Rose Gold 51
By Hermès
Located in Miami, FL
sale SIZE 51 RING WIDTH 0.23" CONDITION: NEW or NEVER WORN
Category

21st Century and Contemporary French Fashion Rings

Materials

Yellow Gold

Cartier Vintage Pave Diamonds Heart Ring Yellow Gold 51 US 5.5
By Cartier
Located in Kobe, Hyogo
Yellow Gold Ring Size: 51 US SIZE 5.5 UK SIZE K 1/4 Internal Diameter: 16.20 mm Measurements: 2.0 - 8.2
Category

1990s French Band Rings

Materials

Diamond, Yellow Gold

Cartier Nouvelle Vague Crossover Diamond Ring in 18k. 1.10 Carats in Diamonds
By Cartier
Located in Surfside, FL
brilliant cut diamonds. Size 51 European (5.75 US size)This Cartier ring is currently size 51 and some items
Category

20th Century Fashion Rings

Materials

Yellow Gold

BZERO1 Ring 18 Karat White Gold 1 Band
Located in Milano, Lombardia
BZERO1 ring 18kt white gold size 51 1 Band
Category

Early 2000s Italian Band Rings

Materials

White Gold

Vintage Cartier Saturne 51 Gold Plated Gradient Brown Lens France 1990 Sunglasse
By Cartier
Located in Baleares, Baleares
the times. Original Cartier hard case. 1990's Designed and produced. Size 51 [] 19
Category

1990s French Sunglasses

Venecia Nocturn
By Bartolome Sastre
Located in Austin, TX
"Venecia Nocturn" Artist: Bartolome Sastre Medium: Oil on canvas Size: 51" x 38"
Category

21st Century and Contemporary Landscape Paintings

Materials

Canvas, Oil

Diamond Gold Ring
Located in Geneva, CH
Ring in 18kt yellow gold set with one diamond  0.33 cts Size 51       
Category

21st Century and Contemporary Swiss Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

Diamond Gold Ring
Diamond Gold Ring
Free Shipping
Yellow Gold Diamond Ring
Located in Geneva, CH
Ring in 18kt yellow gold set with 22 square cut diamonds 3.45cts Size 51      
Category

21st Century and Contemporary Swiss Contemporary Band Rings

Materials

Diamond, 18k Gold, Yellow Gold

Emerald and Diamond Gold Ring
Located in Geneva, CH
Ring in 18kt yellow gold set with emeralds 2.15 cts  and 2 diamonds 0.36 cts Size 51       
Category

21st Century and Contemporary Swiss Contemporary Bridal Rings

Materials

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

0.80 Carat Emerald Diamond Ring
Located in Geneva, CH
Size: 51.
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, Emerald, Yellow Gold

Cartier White Gold Love Ring Band
By Cartier
Located in New York, NY
Mint condition 18 karat white gold Ring size: 51/5.5 Width: 3.5mm Comes with Cartier box, no papers
Category

2010s Wedding Rings

Cartier Platinum Wedding Band
By Cartier
Located in Atlanta, GA
Cartier Platinum Wedding Band 2.5 millimeters wide Cartier Size 51 U.S. Size 5.75 *see our other
Category

21st Century and Contemporary French Contemporary Wedding Rings

Materials

Platinum

0.33 Carat Diamond Platinum Tiffany Half Eternity Band Bridal Ring
By Tiffany & Co.
Located in Berlin, DE
: 3mm Size: 51
Category

2010s American Contemporary Band Rings

Materials

Diamond, Platinum

Berca One of a Kind 12 Carat Natural Moonstone Cabochon Sterling Silver Ring
By Berca Atelier
Located in Valenza, IT
, hypnotical effect. In our smart fitted Black Box and Pouch. US size 51/2 French size 51. We are pleased to
Category

21st Century and Contemporary Italian Contemporary Cocktail Rings

Materials

Moonstone, Sterling Silver

Colored Stones and Diamond Gold Ring
Located in Geneva, CH
Ring in 18kt white gold set with 239 diamonds 5.26 cts and 25 colored stones 2.71 cts Size 51          
Category

21st Century and Contemporary Swiss Contemporary Fashion Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Sapphire and Rubies Gold Ring
Located in Geneva, CH
Size 51      
Category

21st Century and Contemporary Swiss Contemporary Fashion Rings

Materials

Sapphire, Ruby, Diamond, Yellow Gold, White Gold, 18k Gold, Gold

Diamond and White Gold Ring
Located in Geneva, CH
Ring in 18kt white gold set with 5 baguette cut diamonds 0.15 cts and 68 diamonds 0.40 cts Size 51
Category

21st Century and Contemporary Swiss Contemporary Wedding Rings

Materials

Diamond, 18k Gold, White Gold

Cartier Tank Française White Gold Diamond Ring 51
By Cartier
Located in MIAMI, FL
0.64 carat. The diamonds in the ring are white in color with VVS clarity. The ring is a size 51 and
Category

1990s French Contemporary Band Rings

Materials

Diamond, 18k Gold, White Gold

Sapphire Diamond Ring
Located in Geneva, CH
, Size 51
Category

21st Century and Contemporary Swiss Contemporary More Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold

White Gold Star Ring Set with Rose Cut Diamonds and Large Central One
Located in Sofia, BG
White gold star ring set with rose cut diamonds, one larger diamond in the center, 4.10 g. size 51
Category

Early 20th Century French Collectible Jewelry

Materials

Gold

Ruby and diamonds tank ring
Located in PARIS, FR
Weight: 13.4g Period: 1940 Size: 51 (free sizing) Certificate Ref. : 25372
Category

Vintage 1940s Fashion Rings

Materials

Diamond, Ruby, 18k Gold, Platinum

1900 Antique ring with sapphires and diamond roses
Located in PARIS, FR
: 1900 Size: 51 (free sizing) Certificate Ref. : 25628
Category

Antique Early 1900s Fashion Rings

Materials

Diamond, Sapphire, 18k Gold

Cartier Diamond, Emerald Wedding Band
By Cartier
Located in New York, NY
design, signed Cartier. Ring size 51
Category

Vintage 1980s French Wedding Rings

Materials

Diamond, Emerald, 18k Gold

Fendi F Crystal Band Ring
By Fendi
Located in Bishop's Stortford, Hertfordshire
EU RING SIZE 51 US RING SIZE 6 TOTAL WEIGHT 3.8g
Category

2010s Unknown Contemporary Fashion Rings

Materials

Base Metal

18k Yellow Gold Ring Agate Intaglio of Warrior
Located in Montreal, QC
Vintage 18k yellow gold agate intaglio warrior ring, made in Italy, size 51 (5 1/2). Marked inside
Category

Vintage 1950s Italian More Rings

Materials

Agate, 18k Gold, Yellow Gold

Sapphire and cabochon tourmaline ring in gold
Located in PARIS, FR
: 12.4g Period: Recent vintage style Size: 51 (free sizing) Certificate Ref. :25633
Category

Early 2000s Fashion Rings

Materials

Sapphire, Tourmaline, Gold

White Gold Double Eternity Ring with Rubies
Located in AMSTELVEEN, NH
karat Ring Size: 51 (16.5 mm) Condition: New Retail value: € 2.500
Category

21st Century and Contemporary Contemporary Band Rings

Materials

Ruby, Gold, White Gold

Chanel Silvery Metal CC Ring with Costume Pearls, 2015
By Chanel
Located in SAINT-OUEN-SUR-SEINE, FR
information: Condition: Very good condition Dimensions: Size 51 Period: 21st Century Seller Reference: BGB7
Category

21st Century and Contemporary French Fashion Rings

Solitaire Diamond White Gold 18K Ring
Located in Geneva, CH
VVS2 clarity . Size: 51 Total gross weight; 2.53 grams.
Category

Late 20th Century European Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Cartier 18 Karat White Gold 8 Diamond Love Ring
By Cartier
Located in Scottsdale, AZ
Clarity: VVS1-2 Serial # CC5XXX Size: 51 (5.75) Comes with original Cartier box
Category

21st Century and Contemporary More Rings

Materials

Diamond, 18k Gold, White Gold

Bulgari Citrine and Amethyst Ring
By Bulgari
Located in New York, NY
A chic Bulgari two stone ring set with an oval amethyst and similarly cut citrine. Size 51, signed
Category

Vintage 1970s Italian Cocktail Rings

Materials

Amethyst, Citrine, Gold

Hermès "Arabesques" Turban in Silk
By Hermès
Located in SAINT-OUEN-SUR-SEINE, FR
information: Dimensions: Head size: 51 cm Condition: Very good condition Seller Ref number: CHP39
Category

1970s French Hats

Sapphires and Diamond Gold Ring
Located in Geneva, CH
and 40 tapers cut diamonds 2.30 cts Size 51
Category

21st Century and Contemporary Swiss Contemporary Cocktail Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, Yellow Gold

Cartier Ballerine Solitaire 0.32ct Diamond Engagement Ring Pt 51
By Cartier
Located in Kobe, Hyogo
Size: 51 US SIZE 5.5 UK SIZE K 1/4 Internal Diameter: 16.15 mm Measurement: 1.4 - 5.2 mm width Weight
Category

2010s French Solitaire Rings

Materials

Diamond, Platinum

Ring White GoldDiamond
By Fred
Located in PARIS, FR
Ring signed the house Fred eventful collection. medium. Ring size: 51. width on top: 1.15 cm. total
Category

20th Century French Engagement Rings

Materials

White Gold

Song of Songs : Women Discussing - Original Lithograph Handsigned & Numbered
By Théo Tobiasse
Located in Paris, FR
artist Numbered /150 copies On vellum size 51 x 35 cm Very good condition
Category

Early 2000s Surrealist Figurative Prints

Materials

Lithograph

2, 94 Carats cabochon emerald ring with diamonds
Located in PARIS, FR
gold and platinum Weight: 8.7g Period: 1900 Size: 51 (free sizing) Certificate Ref. : 24464-25440
Category

Antique Early 1900s Wedding Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Fred Ring Mouvementé White Gold
By Fred
Located in PARIS, FR
Ring signed the house Fred eventful collection. medium. Ring size: 51. width on top: 1.15 cm. total
Category

20th Century French Engagement Rings

Materials

White Gold

Cartier Love Ring 18K White Gold
By Cartier
Located in New York, NY
Cartier Love ring in 18K white gold. Width: 5.5mm. Ring size 51 US 5.75. Great pre-owned condition
Category

2010s French Modern Band Rings

Materials

White Gold

vintage coffee table | table | marble | Sweden (2)
Located in GRONINGEN, NL
condition | good | light signs of use size | 51 x 129 x 74 (hxwxd) details | chrome; marble; article
Category

Vintage 1970s Swedish Coffee and Cocktail Tables

Materials

Marble, Chrome

Rochas Paris ring in 18 carat gold and diamonds
Located in LILLE, FR
white gold. Size 51 for a gross weight of 9.25 grams. Eagle's head hallmark.
Category

Late 20th Century French Signet Rings

Materials

Diamond, 18k Gold

Human Target 1, Acrylic Paint and Paper on Canvas by Anatol Pacanowski
By Anatol Pacanowski
Located in Long Island City, NY
, Signed and Dated right Size: 51 in. x 41 in. (129.54 cm x 104.14 cm)
Category

1980s Conceptual Mixed Media

Materials

Paper, Acrylic, Canvas

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Size 51 For Sale on 1stDibs

Find the exact size 51 you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, Rose Gold and Yellow Gold — can elevate any look. You can easily find a 9 antique edition and 81 modern creations to choose from as well. Finding the perfect size 51 may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing size 51 — no matter the origin — is easy, but Cartier, Bulgari and Chanel each produced a popular version that is worth a look. A size 51 can make for a versatile accessory, but a selection from our variety of 12 Diamond versions can add an especially stylish touch. An antique cushion cut version of this piece has appeal, but there are also rose cut and brilliant cut versions for sale. Most of our size 51 for sale are for women, but there are 5 pieces available to browse for men.

How Much is a Size 51?

The price for a size 51 starts at $199 and tops out at $44,898 with these rings, on average, selling for $2,047.