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20th Diamond

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Diamond Pendant Necklace, Round Brilliant Diamond .20 Carat or 1/5 th Carat
By Five Star Jewelry
Located in Austin, TX
This 18K white gold diamond pendant is simple but elegant. It has a full cut diamond that is .20
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, White Gold, Gold, 14k Gold

Early 20th Century 18 Carat Gold and Platinum Brilliant Cut Diamond Engagement
Located in Dordogne, FR
Early 20 th century 18 carat gold and platinum brilliant cut diamond single stone ring. Diamond
Category

Early 20th Century British Engagement Rings

Materials

Diamond, Gold, Platinum

Diamond Cluster Round 0.75 Carat Pendant 18 Karat White Gold Daisy Necklace
By Hasbani Diamonds
Located in London, GB
in the late 19th and early 20th centuries, diamond cluster pendants became even more intricate and
Category

2010s British Modern Pendant Necklaces

Materials

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

Diamond Cluster Round 0.50 Carat Pendant 18 Karat White Gold Daisy Necklace
By Hasbani Diamonds
Located in London, GB
period, which flourished in the late 19th and early 20th centuries, diamond cluster pendants became even
Category

2010s British Modern Pendant Necklaces

Materials

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

Diamond Cluster Round 0.33 Carat Pendant 18 Karat White Gold Flower Necklace
By Hasbani Diamonds
Located in London, GB
in the late 19th and early 20th centuries, diamond cluster pendants became even more intricate and
Category

2010s British Modern Pendant Necklaces

Materials

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

Diamond Cluster Round 1 Carat Pendant 18 Karat White Gold Daisy Flower Necklace
By Hasbani Diamonds
Located in London, GB
in the late 19th and early 20th centuries, diamond cluster pendants became even more intricate and
Category

2010s British Modern Pendant Necklaces

Materials

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

2.14 Carat Diamond Bespoke 18 Kt White Gold British Hallmark Cluster Cufflinks
By Hasbani Diamonds
Located in London, GB
Exceptional and individual set with round brilliant-cut diamonds, these bespoke Hasbani Diamonds
Category

2010s British Modern Cufflinks

Materials

Amethyst, Diamond, White Diamond, Yellow Diamond, Black Diamond, Emerald...

Diamond and 18K Gold Bangle, 20th Century
Located in Idar-Oberstein, DE
A diamond and 18k yellow gold bangle, 20th Century. The bangle is oval shaped with an inner
Category

Late 20th Century Bangles

Materials

Diamond, 18k Gold

Diamond and 18K Gold Bangle, 20th Century
Diamond and 18K Gold Bangle, 20th Century
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H 2.49 in W 2.8 in
Round Diamond Solitaire Necklace GIA Certified
By Diamond Scene New York
Located in New York, NY
2.05 carat GIA Certified H color VS1 clarity center diamond. There are an additional three round
Category

Late 20th Century Link Necklaces

Materials

Diamond, White Diamond, 18k Gold

Early 20th Century Double Diamond Platinum Ring
Located in New York, NY
diamonds with an approximate total weight of 2.50ct. Accentuating the center stones are small old mine cut
Category

Early 20th Century Art Deco Cluster Rings

Materials

Diamond, Platinum

Diamond White Gold 18K Earrings Late 20th Century
Located in Geneva, CH
Old mine cut Diamond on White Gold 18K Earrings. Late 20th Century. Length: approx. 4.50
Category

Late 20th Century Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Mid-20th Century Diamond Platinum Bracelet
Located in New York, NY
marquise cut diamonds that weigh approximately 20.00ct. The color of the diamonds is F-H with VS clarity
Category

Mid-20th Century More Bracelets

Materials

Diamond, Platinum

Mid-20th Century Diamond Platinum Bracelet
Mid-20th Century Diamond Platinum Bracelet
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W 0.98 in L 6.5 in
The Leo Mens Diamond Band Ring 14k White Gold
By The Leo Diamond
Located in Honolulu, HI
Item Specifications: Metal: 14k White Gold ​ ​GSI Report #: 27363200121 Diamond Count: 6
Category

Late 20th Century Unknown Modern Band Rings

Materials

Diamond, White Gold, 14k Gold, Gold

A Five-Stone Diamond Ring Early 20th Century
Located in Firenze, IT
A five-stone diamond ring, late 19th century, set with a sequence of five cushion-shaped diamonds
Category

Early 20th Century Italian Engagement Rings

Materials

Diamond

20th Century Diamonds 18 Karat Yellow Gold Ring
Located in Poitiers, FR
rose-cut diamond. On either side of the ring, arabesque motifs are set with a rose-cut diamond. Height
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

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

20th Century Sapphire Diamond Gold Platinum Earrings
Located in New York, NY
A stunning and bold pair of natural, no-heat sapphire briolette-cut drops suspended from a diamond
Category

Mid-20th Century American Victorian Dangle Earrings

Materials

Blue Sapphire, White Diamond, Gold, Platinum

Cat's face Diamond Emerald Brooch Early 20th Century
Located in Geneva, CH
Cat's face Brooch set with Diamond and Emerald on brass (not tested). Early 20th Century
Category

Early 20th Century European Art Nouveau Brooches

Materials

Diamond, Emerald, Brass

Faint Pink and White Diamond Windmill Ring, 20th Century
Located in Idar-Oberstein, DE
A pink and white diamond ring in 18k yellow gold. The centre stone weighs approximately 0.4 carats
Category

20th Century Cocktail Rings

Materials

White Diamond, Pink Diamond, 18k Gold

Rose Diamond 9k Gold Cluster Pendant, 20th century
Located in St. Catharines, ON
A beautiful diamond encrusted pendant recalling Ancient Muscovy densely set with co-centric bands
Category

20th Century Unknown Russian Revival Drop Necklaces

Materials

Diamond, 9k Gold, Silver, Rose Gold

20th Century Diamonds 18 Karat White Gold Dangle Earrings
Located in Poitiers, FR
constituted of a pattern formed of an antique cushion- cut diamond retained with claws, and of a shuttle set
Category

20th Century French Belle Époque Dangle Earrings

Materials

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

20th Century French Diamond 18k Gold Hoop Earrings, Paris
Located in St. Catharines, ON
Beautiful Parisian 18k gold and diamond hoops, the fronts pavé set with diamonds, mounted on gold
Category

Late 20th Century French Contemporary Hoop Earrings

Materials

Diamond, 18k Gold, Gold, Yellow Gold

20th Century French Diamond 18k Gold Hoop Earrings, Paris
20th Century French Diamond 18k Gold Hoop Earrings, Paris
W 0.75 in D 0.75 in Dm 0.38 in L 0.75 in
0.77 Carats Diamond Gold Heart Necklace
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Very Fun Necklace The necklace is 18K White Gold There are 0.77 Carat G/H VS Diamonds The necklace
Category

Late 20th Century American Contemporary Pendant Necklaces

Materials

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

20th Century Diamonds 18 Karat Yellow Gold Antique Ring
Located in Poitiers, FR
on all its turn of small diamonds. Height : 6,8 mm, thickness : 1 mm approximately. Total weight of
Category

20th Century French Belle Époque Wedding Rings

Materials

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

20th Century Ruby Emerald Diamond Gold Fly Locket
Located in St. Catharines, ON
, its body and head set with a cushion-cut ruby, a pear-shaped emerald and an old European- cut diamond
Category

20th Century Unknown Pendant Necklaces

Materials

Diamond, Emerald, Rock Crystal, Ruby, 18k Gold, Gold, Yellow Gold

20th Century Diamond 18 Karat Yellow Gold Antique Ring
Located in Poitiers, FR
cushion- cut diamond. Total weight of the diamond : 0,30 carat approximately. Height : 6.9 mm, width
Category

Early 20th Century British Belle Époque Engagement Rings

Materials

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

Early 20th Century Opal Diamond Gold Negligee Necklace
Located in Miami Beach, FL
Early 20th Century opal and diamond 14k white gold negligee necklace featuring fine quality gray
Category

Early 20th Century Unknown Drop Necklaces

Materials

Diamond, Opal, 14k Gold, Gold, White Gold

Early 20th Century Opal Diamond Gold Negligee Necklace
Early 20th Century Opal Diamond Gold Negligee Necklace
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H 2 in W 1 in L 17.5 in
Quadrillion Brand 18 Yellow Gold Ring with 10.82ct Precious Topaz and Diamonds
By Quadrillion Diamond Company
Located in Palm Beach, FL
This 18k yellow gold fashion ring is a late 20th century industry icon, signed Quadrillion brand
Category

Late 20th Century American Modern Cocktail Rings

Materials

Diamond, Topaz, 18k Gold, Yellow Gold

Marianne Ostier Mid-20th Century Diamond Gold Earrings
By Marianne Ostier
Located in New York, NY
A pair of 18 karat gold earrings with diamonds by Marianne Ostier. The earrings contain 32 round
Category

Mid-20th Century American Clip-on Earrings

Materials

White Diamond, 18k Gold

French 20th Century 3, 07 Carats Diamond Platinum Solitaire Ring
Located in Poitiers, FR
. Authentic antique jewel - French work from the early 20th century. Our opinion : This antique-cut diamond is
Category

Early 20th Century French Retro Solitaire Rings

Materials

Diamond, White Diamond, Platinum

20th Century Diamonds 18 Karat White Gold Platinum Transformation Necklace
Located in Poitiers, FR
Transformation necklace in 18 karat white gold and platinum. Antique jewelry from the early 20th
Category

20th Century French Belle Époque Choker Necklaces

Materials

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

Five Strand Pearl Diamond 18k Gold Bracelet, 20th century
Located in St. Catharines, ON
. 7 ¼ in. (18.4 cm.) long; width of diamond spacers: 3/4 in. (1.9 cm) wide. 20th century
Category

20th Century American Neoclassical Beaded Bracelets

Materials

Diamond, Pearl, Gold, 18k Gold, Yellow Gold, Silver

Early 20th Century Platinum & Diamond Bracelet
Located in London, GB
A platinum and diamond strap bracelet composed of small open with panels set with old-cut diamonds
Category

Vintage 1910s Link Bracelets

Materials

Diamond, Platinum

Diamond Jade Platinum Cufflinks Early 20th Century
Located in Berlin, DE
Gorgeous cufflinks made of Platinum with jade cabochons framed by rose-cut diamonds. Early 20th
Category

Early 20th Century French Art Deco Cufflinks

Materials

Diamond, Jade, Platinum

0.80 Carat Diamond Platinum Seven-Stone Half Band Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Very Beautiful Half Diamond Band Ring The ring is Platinum There are 7 Round Cut Diamonds prong set
Category

20th Century American Contemporary Band Rings

Materials

Diamond, White Diamond, Platinum

20th Century Diamonds Ruby 18 Karat Yellow Gold Cross Pendant
Located in Poitiers, FR
setting star of 5 rose- cut diamonds and in the center, of a cushion- cut ruby. Height : 3.5 cm, width
Category

20th Century French Belle Époque Pendant Necklaces

Materials

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

20th Century Belle Epoque Diamond 18 Karat Yellow Gold Necklace
Located in Poitiers, FR
supporting a floral arabesque pendant with a central rose-cut diamond held in place by claws. The clasp is a
Category

Early 20th Century French Belle Époque Pendant Necklaces

Materials

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

Heart Shape Diamond Yellow Gold 18K Ring Late 20th Century
Located in Geneva, CH
Heart Shape Diamond on Yellow Gold 18K Ring. Diamond dimensions: approx. 6.75 x 5.95 x 3.09 mm. In
Category

Late 20th Century European Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

French Enameled Pearl Diamond 18k Gold Garland Necklace, 20th century
Located in St. Catharines, ON
in multicolored enamel, enhanced with diamonds and drop pearls, the blue enamel backchain of wave
Category

20th Century French Byzantine Link Necklaces

Materials

Diamond, Pearl, Gold, Enamel, 18k Gold, Yellow Gold

Mid 20th Century Platinum Diamond Hairclip
Located in London, GB
A Mid 20th century platinum diamond hairclip. This beautiful Mid 20th Century Hair Clip/Brooch in
Category

Vintage 1930s French Art Deco More Jewelry

Materials

Diamond, Platinum

Mid 20th Century Platinum Diamond Hairclip
Mid 20th Century Platinum Diamond Hairclip
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W 0.71 in D 0.12 in L 2.45 in
20th Century Emerald Diamonds 18 Karat Yellow Gold Daisy Pendant
Located in Poitiers, FR
daisy flower with cabochon-cut emerald at its heart and rose-cut diamonds set in millegrain clos. A loop
Category

Early 20th Century French Belle Époque Pendant Necklaces

Materials

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

20th Century 14K Gold Diamonds Anniversary Ring
Located in Guaynabo, PR
This is a 14K white and yellow gold diamonds Anniversary ring. It depicts an eleven Brilliant cut
Category

20th Century Unknown Band Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

20th Century Diamonds 18 K Yellow Gold Crescent Moon Pattern Necklace
Located in Poitiers, FR
yellow gold chain with a crescent moon motif on the front, set with small rose-cut diamonds and 4 small
Category

20th Century French Belle Époque Pendant Necklaces

Materials

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

20th Century Diamond 18 Karat Yellow Gold Platinum Swirl Ring
Located in Poitiers, FR
jewelry - Work from the beginning of the 20th century. Our opinion : The antique diamond tourbillon ring
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

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

1990's 1.50 Carats Diamond Yellow Gold Ballerina Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Beautiful 1990's Ballerina Ring. The ring is 14K Yellow Gold 1.50ct in Diamonds H VS The ring
Category

20th Century Unknown Retro Cocktail Rings

Materials

Diamond, White Diamond, Gold, 14k Gold, Yellow Gold

20th Century Fine Pearl Diamonds Yellow gold Platinum Marquise Ring
Located in Poitiers, FR
set in the center with a fine button pearl surrounded by antique cushion-cut diamonds. The ring is
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

Diamond, White Diamond, Natural Pearl, Pearl, Platinum, Yellow Gold

Early 20th Century Floral Spray Diamond Platinum Ring
Located in OVIEDO, AS
Early 20th Century Floral Spray Diamond Platinum Ring- Mounted in platinum, handcrafted. Rosette
Category

Early 20th Century Spanish Cluster Rings

Materials

Diamond, Platinum

Diamond Yellow Gold 18K Ring Late 20th Century
Located in Geneva, CH
Diamond Yellow Gold 18K Ring. Late 20th Century. Size: 54 Total weight: 6.55 grams.
Category

Late 20th Century European Fashion Rings

Materials

18k Gold, Yellow Gold

Elegant Mid-20th Century 18K Gold and Diamond Choker Necklace
Located in Palm Beach, FL
This striking, 18K yellow gold and diamond, Mid-20th Century cocktail necklace is ideal for either
Category

Mid-20th Century Unknown Contemporary Choker Necklaces

Materials

Diamond, 18k Gold

Early 20th Century French Diamond Necklace or Bracelets
Located in London, GB
A French Belle Époque diamond necklace bracelets, each bracelet is designed as eight decorative
Category

Antique Early 1900s French Belle Époque Link Bracelets

Materials

Diamond, Platinum

French 20th Century Round Diamond Pattern 18 Karat Yellow Gold Chain
Located in Poitiers, FR
mesh which retains on the front, a round openwork pattern, set with rose-cut diamonds and in the center
Category

Early 20th Century French Belle Époque Chain Necklaces

Materials

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

Antique Early 20th Century Platinum Diamond Pendant Earrings
Located in New York, NY
Early 20th Century platinum diamond earrings, circa 1910. These earrings are a pretty design, with
Category

Early 20th Century Unknown Edwardian Drop Earrings

Materials

Diamond, Platinum

Antique diamond & ruby ring, Poland, early 20th century.
Located in Chorzów, PL
Antique silver and gold ring with ruby, diamonds and synthetic corundum. Origin: Poland, Warsaw
Category

Early 20th Century Polish Victorian Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, Silver

20th Century Colombian Emerald Diamond 18 Karat White Yellow Gold Ring
Located in Poitiers, FR
- cut emerald retained with 4 claws and shouldered on both sides of 2 antique brilliant- cut diamonds
Category

20th Century French Belle Époque Engagement Rings

Materials

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

Elegant Mid-20th Century French Platinum Diamond Solitaire Ring 1.98ct Center
Located in Palm Beach, FL
This wonderful Mid-20th Century Solitaire ring was crafted by hand in the tradition of exquisite
Category

Mid-20th Century French Modern Solitaire Rings

Materials

Diamond, Platinum

20th Century Yellow Sapphire Diamond 18 Karat Yellow Gold Snake Ring
Located in Poitiers, FR
diamond. Total weight of the sapphire : 0,50 carat approximately. Total weight of the diamond : 0,35 carat
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

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

Mid-20th Century Geometric Panel Diamond Brooch in Platinum
Located in London, GB
A mid-20th Century geometric panel diamond brooch in platinum. The brooch is designed as an
Category

Mid-20th Century British Brooches

Materials

Diamond, Platinum

20th Century 1 Carat Cushion-cut Diamonds 18 Karat White Gold Stud Earrings
Located in Poitiers, FR
work of the 20th century. Our opinion : Absolutely timeless, these diamond earrings have a retro touch
Category

20th Century French Retro Stud Earrings

Materials

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

GIA and IGI Certified 0.80 Carat Diamond Eight-Stone Half Band Gold Ring
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Very Beautiful Half Diamond Band Ring The ring is 14K Rose Gold There are 8 Round Cut Diamonds
Category

20th Century American Contemporary Band Rings

Materials

Diamond, White Diamond, Gold, 14k Gold, Rose Gold

French 20th Century Joseph Legrand Peridot Diamonds 18 Karat Yellow Gold Ring
Located in Poitiers, FR
side, giving the start to the ring, are set 2x2 brilliant-cut diamonds on platinum. The ring features a
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

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

Swedish 18k White Gold, Diamond and Pearl Earrings, Mid-20th Century
Located in Stockholm, SE
These 18 karat white gold earrings are adorned with diamonds (approx. 0,20 ctv) and cultured pearls
Category

Mid-20th Century Swedish Dangle Earrings

Materials

Diamond, Pearl, White Gold

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20th Diamond For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 20th diamond for your needs in our varied inventory. Frequently made of Gold, 18k Gold and Platinum, this item was constructed with great care. You can easily find a 37946 antique edition and 167 modern creations to choose from as well. If you’re looking for a 20th diamond from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 19th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a 20th diamond has been a part of the legacy of many jewelers, but those produced by Cartier, Tiffany & Co. and Van Cleef & Arpels are consistently popular. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and old european cut cut versions available here, too. If you’re browsing our inventory for a 20th diamond, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 20th Diamond?

The price for a 20th diamond starts at $1 and tops out at $6,500,000 with these rings, on average, selling for $4,664.