21 Ct
50
to
199
850
476
870
536
413
138
121
85
46
39
37
34
32
27
25
25
21
19
16
15
14
13
10
10
7
7
6
6
5
3
3
3
2
2
2
2
1
1
1
89
63
29
28
26
Sort By
10.46 Ct Ceylon Sapphire & 21 Ct Diamonds 18 Kt White Gold Animal Snake Bangle
Located in New York, NY
10.46 Ct Ceylon Sapphire & 21 Ct Diamonds 18 Karat white Gold Animal Snake Bangle Bracelet
Category
Early 2000s Retro Bracelets
Materials
Diamond, Blue Sapphire, 18k Gold
GIA Certified 18.41 Ct Sapphire & 21 Ct Diamond VVS/E-F Color Pin Set 18 KWG
Located in New York, NY
GIA Certified 18.41 Ct Sapphire & 21 Ct Diamond VVS/E-F Color Pin Set in 18 Karat white gold
Category
20th Century Stud Earrings
Materials
Diamond, Sapphire, Blue Sapphire, 18k Gold
Faceted Lemon Citrine Grape Pendant total 21 ct Briolettes 14 Kt Round Eyelet 1x
Located in Viena, Viena
briolettes in different sizes skillfully put together all around, total 21.5 ct, large eyelet in 585 yellow
Category
2010s European Modern Pendant Necklaces
Materials
Citrine, Yellow Gold, 14k Gold
Free Shipping
W 0.6 in L 1.26 in
18 kt. White Gold Chopard Chandelier Earrings With approx. 28.56 ct. Diamonds
By Chopard
Located in Antwerp, BE
cut diamonds together approx. 7.56 ct.
Pear Shape cut diamonds together approx. 21 ct.
Material: 18
Category
21st Century and Contemporary Swiss Artisan Chandelier Earrings
Materials
Diamond, 18k Gold, White Gold
H 4.34 in W 1.54 in D 0.09 in
Round Ruby & Diamond Ballerina Ring
Located in New York, NY
surrounded by 24 tapered baguette diamonds approximately 1.85 ct and 12 brilliant diamonds approximately .21
Category
Vintage 1980s Cocktail Rings
Materials
Diamond, Ruby, 14k Gold
Fantastic 18 Karat Yellow Gold Emerald and Diamond Bracelet
Located in Zurich, Zollstrasse
estimated weight of ca. 21 ct, and additionally adorned with 324 brilliant cut Diamonds of ca. 6.50 ct, G
Category
Vintage 1980s Unknown Contemporary Link Bracelets
Materials
Emerald, Diamond, 18k Gold, Yellow Gold
14 Karat White Gold and Diamond Wedding Band Ring
Located in Washington Depot, CT
: .21 ct.
Diamond color: G
Diamond clarity: SI1-VS2
Ring Size: 8
Weight: 1.9 dwt. / 3.0 gr
Category
20th Century Wedding Rings
Materials
Diamond, White Gold
14 Karat White Gold Diamond Wedding Band
Located in Washington Depot, CT
weight: .21 ct.
Diamond color: H
Diamond clarity: SI1-SI2
Ring Size: 8.5
Weight: 1.6 dwt. / 2.5
Category
20th Century Wedding Rings
Materials
Diamond, White Gold, 14k Gold
NEW GIA Cert Unheated Natural Oval Pink Spinel Diamond Ring in 14K Yellow Gold
Located in Warren, NJ
is a perfect addition to your jewelry collection.
New Never Worn
Diamonds: .21 ct
Undervalued
Category
Antique Mid-19th Century Victorian Cocktail Rings
Materials
Diamond, Spinel, 14k Gold, Yellow Gold
14K Rose Gold and Diamond Band Ring Size 9 #15981
Located in Washington Depot, CT
weight: .21 ct.
Diamond color: G-H
Diamond clarity: SI1-I1
Ring Size: 9
Stamped: 14K
Weight: 2.7 g
Category
21st Century and Contemporary Band Rings
Materials
Diamond, 14k Gold, Rose Gold
18 Karat Yellow Gold and Diamond Cross Pendant Necklace
Located in Washington Depot, CT
.
Approximate total diamond weight: .21 ct.
Diamond color: F
Diamond clarity: VS1
Size: 18 inches (necklace
Category
20th Century Pendant Necklaces
Materials
Diamond, Yellow Gold
14 Karat White Gold and Diamond Pendant Necklace
Located in Washington Depot, CT
total diamond weight: .21 ct.
Diamond clarity: I
Diamond color: I1-I2
Size: 25 mm x 3 mm (pendant)
18
Category
20th Century Pendant Necklaces
Materials
Diamond, White Gold
14 Karat White Gold Tanzanite and Diamond Bracelet #13108
Located in Washington Depot, CT
.
Total tanzanite weight: 10.26 ct.
Total diamond weight: .21 ct.
Diamond clarity: SI1-SI2
Diamond
Category
20th Century Tennis Bracelets
Materials
Diamond, Tanzanite, White Gold
14 Karat Yellow Gold Natural Sapphire and Diamond Earrings
Located in Washington Depot, CT
weight: .21 ct.
Diamond clarity: I1 - I2
Diamond color: H - I
Two round natural blue sapphires are
Category
20th Century Drop Earrings
Materials
Diamond, Sapphire, Yellow Gold
10K Gold Peridot, Diamond, Prasiolite Earrings #16708
Located in Washington Depot, CT
closures.
Total peridot weight: 4.2 ct.
Total quartz weight: .42 ct.
Total diamond weight: .21 ct
Category
21st Century and Contemporary Dangle Earrings
Materials
Diamond, Peridot, 10k Gold, Yellow Gold
21 Carat Oval Shape Calcidonia Cocktail Ring 14 Karat Yellow Gold Hand Made
Located in New York, NY
21 Carat Oval Shape Calcidonia Cocktail Ring 14 Karat Yellow Gold Hand Made , Size 6
Very unique
Category
2010s Cocktail Rings
Materials
Opal, Yellow Gold, 14k Gold
Ct 21, 63 of Zambia Emeralds, Rubies and Diamonds on Earrings
Located in Massafra, IT
An exquisite flowers 🌺 design, so chic and original, in 18k gold with two Burma rubies ct 2,56
Category
21st Century and Contemporary Drop Earrings
Materials
18k Gold
Cross Pendant Necklace - 18k White Gold - 21 Diamonds total 0.25 ct H VS
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer cross pendant necklace 18k white gold, Hallmark Collection, 21 diamonds, total 0.25 ct
Category
21st Century and Contemporary German Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold
Free Shipping
H 1.68 in L 17.72 in
21 Carat Cushion-Cut AAA Tanzanite & 9.5 Ct Diamonds, Pendant Necklace Estate
Located in New York, NY
This extraordinary, 21 carat tanzanite is truly an extraordinary gemstone. There are total of
Category
Early 2000s Drop Necklaces
Materials
Diamond, Tanzanite, 14k Gold
Natural Emerald Gemstone Choker Diamond Necklace 14 Karat White Gold Jewelry
By Spectrum Jewels
Located in IN
-25809 (14k)
Gross Wt. :- 48.10 gm
14k White Gold Wt. :- 38.58 gm
Diamond Wt. :- 21 Ct. ( AVERAGE DIAMOND
Category
21st Century and Contemporary Indian Modern Choker Necklaces
Materials
Diamond, Emerald, White Gold, 14k Gold
Natural Emerald Gemstone Choker Diamond Necklace 18 Karat White Gold Jewelry
By Spectrum Jewels
Located in IN
Code :- CN-25809
Gross Wt. :- 57.74 gm
18k White Gold Wt. :- 48.21 gm
Diamond Wt. :- 21 Ct. ( AVERAGE
Category
21st Century and Contemporary Indian Modern Choker Necklaces
Materials
Diamond, Emerald, 18k Gold, White Gold
25 Ct Natural Ruby Cabochon and 2.75 Ct Diamond Platinum Link Bracelet 7.25"
Located in Sherman Oaks, CA
Gorgeous Platinum Bracelet Featuring Alternating Prong-set Ruby Cabochons and Bezel-set Princess Cut Diamonds
Cabochon Rubies have variation in color and shape, but average out to a ...
Category
21st Century and Contemporary American Link Bracelets
Materials
Diamond, Ruby, Platinum
21 Carat Natural Brazil Emerald & 2.6 Ct Diamond Tennis Bracelet 14 Karat Y Gold
Located in New York, NY
approximately 21 Carat Natural Brazil Emerald & 2.6 Ct Diamond Tennis Bracelet 14 Karat Y Gold
Category
2010s American Tennis Bracelets
Materials
Diamond, Emerald, Gold, White Gold
Round Locket Pendant 18k Yellow Gold Blue/Turquoise Enamel Diamond 0.03 ct 21 mm
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 1 diamond, total 0.03 ct, H VS, brilliant cut, diameter app. 21.0 mm
About the
Category
21st Century and Contemporary German Victorian Pendant Necklaces
Materials
Diamond, Gold, 18k Gold, Yellow Gold, Enamel
Free Shipping
Dm 0.83 in
Cross Pendant - 18k White Gold - 21 Diamonds total 0.25 ct H VS height 42.5 mm
By Victor Mayer
Located in Pforzheim, DE
Victor Mayer cross pendant 18k white gold, Hallmark Collection, 21 diamonds, total 0.25 ct, H VS
Category
21st Century and Contemporary German Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold
Free Shipping
H 1.68 in
Coral Pearl Earrings floral barock 53 ct and XXL Seize 37 x 21 mm so decorative
Located in Viena, Viena
Baroque meets modern, unusual earrings with 2 carved coral roses totaling approx. 53 ct, 21 mm
Category
2010s Dominican Modern Drop Earrings
Materials
Coral, Pearl, 14k Gold, Yellow Gold
W 0.83 in D 1.11 in L 1.46 in
Amazing GIA Certified 10, 01 Ct of Fancy Light Yellow Diamond
Located in Massafra, IT
An exquisite GIA certified 10,01 ct of natural fancy light yellow diamond, cushion cut, VS1 clarity
Category
21st Century and Contemporary Pendant Necklaces
Materials
Yellow Diamond
21 Round Diamond 4-5 Pointer Each Tennis Bracelet in 14 K White Gold, 1.0 Ct
Located in New York, NY
21 Round Diamond 4-5 Pointer Each Tennis Bracelet in 14 K White Gold, 1.0 Ct Line Bracelet,
Meet
Category
2010s Unknown Link Bracelets
Materials
Diamond, 14k Gold, White Gold
Vintage 14.90 Ct Emerald 2.80 Ct Diamond Ring
Located in Napoli, IT
cabochon cut Emerald – 14.90 Ct (17.96 x 13.79 mm.) gorgeous forest Green with very minimal fingerprints
Category
Vintage 1930s European Art Deco Cluster Rings
Materials
Diamond, Emerald, 18k Gold
JAS-21-2230LBT - 14K WG 1 Ct GH-SI1 DIAMONDS & 12MM 8.50Ct RD LONDON BLUE TOPAZ
Located in New York, NY
ETERNAL HEARTS **Patent No.: US 6,860,117 B2**
14 K GOLD 1.00CT GH-SI1 DIAMONDS AND 12MM 8.50CT ROUND LONDON BLUE TOPAZ
Metal: 14K WHITE GOLD
Diamond Info: GH-SI1 DIAMONDS
Total Dia...
Category
21st Century and Contemporary American Modern Fashion Rings
Materials
Diamond, Blue Topaz, 14k Gold, White Gold
1.30 Ct Sapphire .90 Ct Diamond 18 KT Trilogy Ring
Located in Napoli, IT
totalling approx .90 Ct (G-VVS/SI)
UK size: N 1/4
US size: 6.75
Measures: head is 11 mm. x 21 mm. (h. x w
Category
Mid-20th Century European Contemporary Three-Stone Rings
Materials
Diamond, Sapphire, 18k Gold
15.00 Ct Untreated Tourmaline 3.00 Ct Mine antique Diamond Ring
Located in Napoli, IT
sparkle – approx 3.0 Ct altogether rated G/I VVS/I
Crown is 24 x 21 mm. with 20.2 grams gross weight
Very
Category
Antique Late 19th Century European Victorian Cluster Rings
Materials
Diamond, Tourmaline, 18k Gold, Silver
Art Deco .70 Ct Colombian Emerald . 75 Ct. Diamond Platinum ring
Located in Napoli, IT
Colombian Emeralds, rectangular faceted cut .70 Ct (6.5 x 5,4 mm.)
Diamonds : 4 larger old mine cut and 18
Category
Vintage 1920s European Art Deco Engagement Rings
Materials
Diamond, Emerald, Platinum
0.97 ct Diamond Ring
By Hakimi's Gem
Located in Chicago, IL
This stunning 18k white gold ring boasts 21 sparkling round diamonds with a total carat weight of
Category
2010s Cocktail Rings
Materials
Diamond, 18k Gold
Art Deco 13.10 Ct Diamond 2.80 Ct Natural Ruby 18 KT Bracelet
Located in Napoli, IT
by bright white 202 round – 21 baguette and 346 square faceted cut diamonds totaling approx 11.00 Ct
Category
Vintage 1930s European Art Deco Link Bracelets
Materials
Diamond, Ruby, 18k Gold
0.45 Ct Emerald 0.27 Ct Diamond 14K Yellow Gold Flower Pendant Necklace
By Unbranded
Located in Los Angeles, CA
100% Authentic, 100% Customer Satisfaction
Pendant: 21 mm
Chain: 0.03 mm
Size:18 Inches
Metal
Category
2010s American Pendant Necklaces
Materials
Diamond, 14k Gold
Rare Bicolor Watermelon Green & Pink Tourmaline Gemstone, 3.05 Ct Emerald Cut
Located in Peshawar, PK
GEMSTONE TYPE: Tourmaline
PIECE(S): 1
WEIGHT: 3.05 Carat
SHAPE: Emerald Cut with modified corners
SIZE (MM): 12.47 x 5.97 x 4.65
COLOR: Watermelon Bicolor Green & Pink
CLARITY: Sligh...
Category
21st Century and Contemporary Afghan Contemporary Loose Gemstones
Materials
Tourmaline
Free Shipping
W 0.24 in D 0.19 in L 0.5 in
Edwardian 3.48 Ct NO Heat Ceylon Sapphire 2.25 Ct Diamond Plus Trilogy Ring
Located in Napoli, IT
it
Centre stone is a stunning 3.48 Ct natural Ceylon Sapphire cushion cut of true presence for the
Category
Antique Early 1900s British Edwardian Three-Stone Rings
Materials
Diamond, Sapphire, 18k Gold
Sliced 6.76 Ct Multi Sapphire 0.59 Ct Diamond 14k Gold Butterfly Heart Necklace
Located in Los Angeles, CA
Wearable Length: 16" - 18"
Pendant Measurement: 29 mm * 21 mm
Metal: 14K White Gold
Stone Type
Category
2010s Unknown Pendant Necklaces
Materials
Sapphire
Sliced 6.91 Ct Multi Sapphire 0.56 Ct Diamond 14k Gold Butterfly Heart Necklace
Located in Los Angeles, CA
Wearable Length: 16" - 18"
Pendant Measurement: 29 mm * 21 mm
Metal: 14K White Gold
Stone Type
Category
2010s Unknown Pendant Necklaces
Materials
Sapphire
Sliced 6 Ct Multi Sapphire 0.59 Ct Diamonds 14k Gold Butterfly Heart Necklace
Located in Los Angeles, CA
Wearable Length: 16" - 18"
Pendant Measurement: 29 mm * 21 mm
Metal: 14K White Gold
Stone Type
Category
2010s Unknown Pendant Necklaces
Materials
Sapphire
Sliced 7.46 Ct Multi Sapphire 0.59 Ct Diamond 14k Gold Butterfly Heart Necklace
Located in Los Angeles, CA
Wearable Length: 16" - 18"
Pendant Measurement: 29 mm * 21 mm
Metal: 14K Rose Gold
Stone Type: 7.46
Category
2010s Unknown Pendant Necklaces
Materials
Sapphire
Victorian 3.80 Ct Natural Fire Opal .60 Ct Old Mine Diamond Rare Snake ring
Located in Napoli, IT
diamonds totalling approx .60 Ct (G/VVS-VS)
UK size: P 1/4
US size: 7.75
Measures: head is 12 x 21 mm. (h
Category
Early 20th Century European Victorian Cluster Rings
Materials
Diamond, Fire Opal, 18k Gold
19.34 Ct Vivid Blue Oval Cut Sapphire and 5.65 Ct Diamond Necklace in 18W ref71
By Diamond Town
Located in New York, NY
This necklace features 21 oval cut vivid blue sapphires in a graduated pattern, each in a halo of
Category
21st Century and Contemporary Contemporary Link Necklaces
Materials
Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold
Antique 4.10 Ct Diamond Platinum Gold Earrings
Located in Chicago, IL
weight of the center stones: 0.48 ct and 0.54 ct.
Total length is 21 mm (13/16 in.)
Width is 18 mm (3/4
Category
Early 20th Century Art Deco Dangle Earrings
Materials
Diamond, Gold, Platinum
27.00 Ct Aquamarine Diamond 18 Kt ring
Located in Napoli, IT
setting for 27.00 Ct. (24 mm. x 17 mm.) amazing sparkle and glow
Approx. 70 Ct of old Swiss cut Diamonds
Category
Mid-20th Century Italian Contemporary Cluster Rings
Materials
Aquamarine, Diamond, 18k Gold
Estate 1.60 CT Five Stone Diamond Ring
Located in Napoli, IT
1.60 Ct (H/I-VS/SI)
UK size: N 1/4
US size: 6.75
Measures: head is 6 x 21 mm. (h. x w.)
Weight: 5,0
Category
21st Century and Contemporary Italian Contemporary Engagement Rings
Materials
Diamond, 18k Gold
14.80 Ct Kaleidoscopic Australian Opal Diamond Pendant
Located in Napoli, IT
.14 Ct (G/VVS)
Measures: pendant is 30 x 21 mm. (h. x w.) – chain is 46cm.
Weight: 10.1 grams
Category
21st Century and Contemporary European Contemporary Pendant Necklaces
Materials
Diamond, Opal, 18k Gold
18k gold ring and 1.10 ct diamonds
Located in Roma, IT
, taglio a gradini, circa 1.10 ct; G-H; VVS.
Misura IT 21 - Misura USA 9 1/2. Peso 5,8 gr.
Category
Late 20th Century Fashion Rings
Materials
Diamond, 18k Gold
Retro 10.00 Ct Aquamarine Diamond 18 Kt Ring
Located in Napoli, IT
a fabulous elongated emerald cut natural Aquamarinne of 10.0 Ct – 21 mm. x 14 mm – gorgeous sky blue
Category
Vintage 1940s European Retro Cluster Rings
Materials
Aquamarine, Diamond, 18k Gold
Necklace with Diamonds 0.90 ct, 18k bicolour gold
Located in The Hague, ZH
approx. 0.90 ct - F/G - VS/SI - 39 cm long
detailed description
the necklace is about 2 x 18.5 cm
Category
2010s Dutch Modern Pendant Necklaces
Materials
Diamond, Gold
Edwardian 6.40 Ct Diamond 18 KT Daisy Earrings
Located in Napoli, IT
Ct spreading a bit larger than real size assess as 3.60 Ct for both K/L colour VS/I clarity
Halo and
Category
Antique Early 1900s European Edwardian Lever-Back Earrings
Materials
Diamond, 18k Gold, Platinum
Edwardian 4.70 CT Natural Aquamarine Diamond Rare Ring
Located in Napoli, IT
totally Natural untreated 4.70 CT oval faceted cut
Alluring Sky Blue colour with a green overtone hue to
Category
Antique Early 1900s European Edwardian Cluster Rings
Materials
Aquamarine, Diamond, 14k Gold, Silver
Georgian approx 4.50 Ct Rose Cut Diamond ring
Located in Napoli, IT
shoulders, hand crafted of solid 18 Kt gold topped by silver
It is set with approx 4.50 Ct total of pavè set
Category
Antique Late 18th Century European Georgian Cluster Rings
Materials
Diamond, 18k Gold, Silver
Victorian 12.20 CT Diamond Boxed French necklace bracelet
Located in Napoli, IT
mine cut Diamonds with further 2.20 Ct of rose cut Diamonds set in addition
Back line is alternated by
Category
Antique 1840s French Early Victorian Link Necklaces
Materials
Diamond, 18k Gold, Silver
14K Rose Gold 4.54 CT Multicolor Sapphires Earrings
By Unbranded
Located in Los Angeles, CA
100% Authentic, 100% Customer Satisfaction
Height: 21 mm
Width: 15.7 mm
Metal:14K Rose Gold
Category
2010s American Hoop Earrings
Materials
14k Gold
Art Deco Ct 1.32 Colombian Emerald Diamond Platinum Ring
Located in Napoli, IT
Centrally set with a vibrant Blue Green Colombian Emerald, superb vivid color, approx. 1.32 Ct (7.59 mm. x
Category
Vintage 1920s European Art Deco Cluster Rings
Materials
Diamond, Emerald, Platinum
Victorian 3.60 Ct Old Mine Diamond Antique Cluster Ring
Located in Napoli, IT
Diamond is an old mine cut Diamond of 1.60 Ct bright white with very minor internal inclusion assessed I/J
Category
Antique 1890s European Victorian Cluster Rings
Materials
Diamond, 18k Gold, Silver
Victorian 8.50 Ct Old Mine Diamond 18 KT Bracelet
Located in Napoli, IT
silver topped
Set throughout with a selection of old mine cut Diamonds giving a TCW of 8.50 Ct
Diamonds
Category
Antique 1870s European Victorian Link Bracelets
Materials
Diamond, 18k Gold, Silver
Yellow gold earrings with 2.64 ct brilliant cut diamonds
Located in Bologna, IT
Fontana, active from the '70 to the 2010.
The diamonds are 2.64 ct, colour H, clarity VVS, brilliant cut
Category
1990s Italian Contemporary Stud Earrings
Materials
Diamond, 18k Gold, Yellow Gold
- 1
- ...
Get Updated with New Arrivals
Save "21 Ct", and we’ll notify you when there are new listings in this category.
21 Ct For Sale on 1stDibs
Find the exact 21 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 622 vintage editions and 813 modern creations to choose from as well. Finding the perfect 21 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. Creating a 21 ct has been a part of the legacy of many jewelers, but those produced by Joke Quick, LB Exclusive and VR Jewels are consistently popular. A 21 ct of any era or style can lend versatility to your look, but a version featuring diamond, from our inventory of 1043, is particularly popular. A round cut version of this piece has appeal, but there are also brilliant cut and oval cut versions for sale. There aren’t many items for men if you’re seeking a 21 ct, as most of the options available are for women and unisex.
How Much is a 21 Ct?
The price for a 21 ct starts at $1 and tops out at $1,560,925 with these rings, on average, selling for $2,887.
More Ways To Browse
Vintage Rotary Swiss Watch
Rotary Gold Watch Vintage
Vintage Rotary Watches
Rotary Retro Watch
Rotary Gold Watch
Rotary Watch Vintage
Rotary Watch
Rotary Watches
Antique Uhren
Vintage Red Watch
Vintage Pocket Watch Working
Top Pocket Watch Brands
Snake Watch Yellow Diamond And White Diamond
Vintage Pocket Watch Box
Retro Swiss Pocket Watch
Vintage Pocket Watch With Box
Vintage Rotary Dial
Medaillon Necklace