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18K Gold Diamond Earrings
Located in New York, NY
26 round, 6 pear and 30 marquise-shaped diamonds total approx. 7.85ct, H-K/VS-SI. Weight: 7 grams
Category

20th Century Drop Earrings

Materials

Diamond, 18k Gold

18K Gold Diamond Earrings
18K Gold Diamond Earrings
Free Shipping
W 0.75 in L 1.75 in
Beauvince Diamond Tennis Bracelet 15.70 Carat Diamonds in White Gold
By Beauvince Jewelry
Located in New York, NY
Weight: 15.70 ct No. of Diamonds: 30 Average Diamond Weight: 0.52 ct Diamond Color: J - K Diamond
Category

2010s Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Crown Jubilee Diamond Tiara Encrusted with Diamonds Weighing 16.67ct
Located in New York, NY
Jubilee® Diamond GIA Color: K Clarity: VS1 and the balance of the diamonds Color: H/I Clarity: VS1/VS2 non
Category

2010s American Belle Époque Vanity Items

Materials

Diamond, 18k Gold, Silver

Ring Diamond 18k bicolor gold
Located in The Hague, ZH
18 kt bicolor gold ring with taper and brilliant cut diamonds tot. 2.00 ct - J/K - VS/SI - ring
Category

21st Century and Contemporary European Modern Band Rings

Materials

Diamond, Gold

Retro Diamond Two Tone Dome Ring
Located in Beverly Hills, CA
approximately 1.25 carats. The diamonds, graded J-K color and VS-SI clarity, exhibit a radiant sparkle that
Category

Vintage 1940s Retro Dome Rings

Materials

Diamond, White Diamond, Gold, White Gold, Yellow Gold

Art Deco Diamond Platinum Dome Ring
Located in Beverly Hills, CA
approximately 0.95 carat, graded K color, SI2 clarity. Accented by 70 single cut diamonds with a total weight of
Category

Vintage 1930s Art Deco Dome Rings

Materials

White Diamond, Diamond, Platinum

Art Deco Diamond Platinum Three Stone Ring
Located in Beverly Hills, CA
whispers tales of bygone romance. Graded J-K color and VS-SI clarity, these diamonds bring a subtle warmth
Category

Vintage 1930s Art Deco Three-Stone Rings

Materials

Diamond, White Diamond, Platinum

Victorian Ruby Diamond Gold Ring
Located in Los Angeles, CA
approximately 1.25 carats. DIAMONDS: 30 old mine cut diamonds total approximately 1.75 carats
Category

Antique 1890s Victorian Cluster Rings

Materials

Diamond, Ruby, Gold, 14k Gold

Diamond White Gold Silver Pendant Necklace
Located in New York, NY
Round brilliant, single and full-cut diamonds weighing a total of approximately 10.00 carats, J-K-L
Category

Mid-20th Century Pendant Necklaces

Materials

Diamond, White Gold, Silver

14K Yellow Gold Ladies Diamond Ring 0.45ct
Located in Laguna Beach, CA
Diamond ring in 14k yellow gold. The center diamond is a .30 carat round brilliant cut, h color
Category

Mid-20th Century Cocktail Rings

Materials

Diamond, 14k Gold, Yellow Gold

Inspired Tsavorite White Diamond Gold Drop Earrings
By Natkina
Located in Montreux, CH
Earrings White Gold 14 K Diamond 80-RND-0,4-G/VS1A Diamond 94-RND-0,23-G/VS1A Tsavorite 30-1,61ct
Category

2010s Lever-Back Earrings

Materials

Tsavorite, Diamond, 14k Gold

Art Deco Platinum, Diamond Ring Circa 19030s
Located in ADELAIDE, SA
-K colour, SI1 material, estimated weight 0.65ct Diamonds: Ten small single-cut diamonds, fine
Category

Vintage 1930s Art Deco Cluster Rings

Materials

Diamond, Platinum

Art Deco Diamond Cluster Ring Circa 1930s
Located in ADELAIDE, SA
diamonds. Diamond: One 4.55mm transitional brilliant cut, J-K colour, SI1 material, estimated weight
Category

Vintage 1930s Art Deco Cluster Rings

Materials

Diamond, Platinum

Antique French Diamond 18k Rose Gold Bangle Bracelet
Located in Beverly Hills, CA
One Antique French Diamond 18k Rose Gold Bangle Bracelet. Featuring one old mine cut diamond
Category

Antique Early 1900s Bangles

Materials

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

Vintage GIA 10.03 Carat Pear Cut Diamond Platinum Ring
Located in Beverly Hills, CA
10.03 carats, accompanied with GIA #6227209340 stating the diamond is K color, I2 clarity. Accented by
Category

1990s Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco Geometric Diamond Ring Circa 1920s
Located in ADELAIDE, SA
0.90cts Total diamond estimated weight 2.16cts Metal: Platinum Weight: 5.62 grams Finger size: K Era: Art
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Platinum

14 Karat White Gold Diamond Wedding Band
Located in Washington Depot, CT
: .30 ct. twt. Shank measures 4.5 mm. Approximate total diamond weight: 1.24 cts. Diamond clarity: H-K
Category

20th Century Wedding Rings

Materials

Diamond, Gold

14k White Gold & Diamond Tennis Bracelet 18.90ctw
Located in Tustin, CA
We are pleased to present this beautiful 14k White Gold & Diamond Tennis Bracelet. It features 30
Category

2010s American Contemporary Tennis Bracelets

Materials

Diamond, 14k Gold, White Gold

Art Deco Platinum Diamond Cluster Ring Circa 1920s
Located in ADELAIDE, SA
glamourous sparkle. Diamond: One early European cut, I-K colour VS clarity, estimated weight 1.54ct Diamonds
Category

Vintage 1920s Art Deco Cluster Rings

Materials

Diamond, Platinum

Classic Yellow Diamond White 14k Gold Ring for Her
By Natkina
Located in Montreux, CH
Ring White Gold 14 K Matching Earrings Avaliable Diamond 24-0,07 ct Diamond 30-0,37 ct Size 7 US
Category

21st Century and Contemporary Swiss Modern Lever-Back Earrings

Materials

Diamond, Yellow Diamond, Gold, 14k Gold

Classic Yellow Diamond White 14k Gold Ring for Her
By Natkina
Located in Montreux, CH
Ring White Gold 14 K Matching Earrings Avaliable Diamond 24-0,07 ct Diamond 30-0,37 ct Size 7 US
Category

21st Century and Contemporary Swiss Modern Lever-Back Earrings

Materials

Diamond, Yellow Diamond, Gold, 14k Gold

Art Deco 1.75 Carat Total Weight Diamond Platinum Ring
Located in Beverly Hills, CA
One Art Deco 1.75 Carat Total Weight Diamond Platinum Ring. Featuring one old European cut diamond
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

14 Karat White Gold Diamond Heart Pendant Necklace
Located in Washington Depot, CT
features 30 round single cut diamonds set in elegant 14K white gold. Suspends from a classic box chain
Category

20th Century Pendant Necklaces

Materials

Diamond, White Gold

Art Deco 3.65 Carat Total Weight Diamond Platinum Earrings
Located in Beverly Hills, CA
European, and transitional cut diamonds with a total weight of approximately 3.65 carats, graded I-K color
Category

Vintage 1930s Art Deco Drop Earrings

Materials

Diamond, White Diamond, Gold, Yellow Gold, Platinum

14 Karat White Gold Diamond Engagement Ring
Located in Scottsdale, AZ
Material: 14K white gold Center Diamond: 1 round brilliant cut = .80ct Color: K Clarity: VS2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, White Gold

South Sea diamond Plan Hanger 18 K
Located in Bad Kissingen, DE
18 k yellow and white gold 1 south sea pearl 14 mm 0,21 ct diamond length 30 mm wide 20 mm weight
Category

21st Century and Contemporary German Pendant Necklaces

Materials

Diamond, South Sea Pearl, 18k Gold

South Sea diamond Plan Hanger 18 K
South Sea diamond Plan Hanger 18 K
Free Shipping
W 0.79 in L 1.19 in
Edwardian Pearl Diamond 18k Yellow Gold Cluster Ring
Located in Beverly Hills, CA
One Edwardian Pearl Diamond 18k Yellow Gold Cluster Ring. Featuring one cream pearl measuring
Category

Antique Early 1900s Edwardian Cluster Rings

Materials

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

18 Karat White Gold and Diamond Hoop Earrings
Located in Washington Depot, CT
. (Earring backs are 14K). Approximate total diamond weight: .68 ct. Diamond color: J-K Diamond clarity
Category

20th Century Hoop Earrings

Materials

Diamond, White Gold

18 Karat White Gold and Diamond Hoop Earrings
18 Karat White Gold and Diamond Hoop Earrings
Free Shipping
W 0.71 in L 1.19 in
Impressive Emerald Diamond White Gold Ring
By Natkina
Located in Montreux, CH
Ring White Gold 14 K Diamond 30-RND-0,17-I/SI1A Emerald 1-0,18ct Weight 1.78 grams Size 17
Category

21st Century and Contemporary Swiss Modern Cocktail Rings

Materials

Emerald, Diamond, 14k Gold, White Gold

Mid-Century French GIA 3.00 Carat Round Brilliant Cut Diamond Platinum Ring
Located in Beverly Hills, CA
round brilliant cut diamond of 3.00 carats, accompanied by GIA #5231235634 stating the diamond is K
Category

Vintage 1950s Engagement Rings

Materials

Diamond, White Diamond, Brown Diamond, Platinum

Large Amethyst Diamond White Gold Cocktail Ring
Located in Berlin, DE
Set with oval shaped amethyst of circa 27.85 ct. Surroundet by 30 brilliant-cut diamonds of ca. 0,9
Category

Mid-20th Century Art Deco Cocktail Rings

Materials

Amethyst, Diamond, 18k Gold, White Gold

Art Deco Inspired Diamond and Emerald Platinum Snake Ring
Located in Beverly Hills, CA
of 1.16 carats, graded K color, SI1 clarity. Accented by 184 old European cut diamonds with a total
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum, Enamel

14 Karat Pink Gold GIA Diamond Sea Horse Earrings
By Thomas Kurilla
Located in New York, NY
Kurilla. The ocean, we've got to love it. These are life size. 30 mm long with diamond eyes. The life
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, Gold, 18k Gold

Classy Black Diamonds White Gold Lever-Back Earrings for Her
By Natkina
Located in Montreux, CH
Earrings White Gold 14 K (Matching Ring Available) Diamond 30-RND57-0,33-4/4A Diamond 180-RND57
Category

2010s Lever-Back Earrings

Materials

Diamond, Black Diamond, White Gold

Art Deco GIA 1.19 Carat Old European Cut Diamond Platinum Ring
Located in Beverly Hills, CA
cut diamond of 1.19 carats, accompanied with GIA #6224886186 stating the diamond is K, Faint Brown
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Brown Diamond, Platinum

Edwardian Old European Cut Diamond 18k Rose Gold Ring
Located in Beverly Hills, CA
carat and exuding a warm, romantic glow. Graded within the mounting as K color, SI1 clarity, the diamond
Category

Antique Early 1900s Edwardian Engagement Rings

Materials

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

Pair of Art Deco Diamond and Emerald Stud Earrings
Located in Beverly Hills, CA
diamonds with a total weight of approximately 0.80 carat, graded J-K color, SI-I clarity. Accented by 38
Category

Vintage 1920s Art Deco Stud Earrings

Materials

Diamond, White Diamond, Emerald, Gold, Yellow Gold

Yellow Gold Diamond Solitaire Ring - 10k Round Brilliant
Located in Greensboro, NC
& 10k White Gold Stone Information Natural Diamond Carat(s): .06ct Cut: Round Brilliant Color: K
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 10k Gold, White Gold, Yellow Gold

GIA Certified 1.41 Carat Diamond Platinum Engagement Ring
Located in Atlanta, GA
: K Clarity: SI2 Side Stone Details: Shape: Old European Brilliant Total Carat Weight: .30 carat
Category

Vintage 1910s Unknown Edwardian Engagement Rings

Materials

White Diamond, Platinum

0.65ctw Diamond Filigree Art Deco Ring Platinum Size 7.75
Located in McLeansville, NC
Gemstone Information: *Natural Diamonds* (center) Total Carats - 0.50ct Cut - Round Brilliant Color
Category

Antique Early 19th Century Fashion Rings

Materials

Diamond, Platinum

14 Karat White Gold GIA Diamond Sea Horse Earrings
By Thomas Kurilla
Located in New York, NY
actually life size. 30 mm long with diamond eyes. The life and energy of the ocean is beyond compare. It
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, White Gold, 14k Gold

6.00 Carat Round Diamond Yellow Gold Tennis Bracelet
Located in Stamford, CT
measures 7 inches in length. It secured with built in catch and safety chain. 38 round diamonds, K I I2
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Belle Époque French GIA 2.83 Carat Old European Cut Diamond
Located in Beverly Hills, CA
diamond 2.83 carats, accompanied by GIA #2239199689 stating the diamond is K color, VS2 clarity. Accented
Category

Antique 1890s Belle Époque Engagement Rings

Materials

Diamond, White Diamond, Gold, Yellow Gold, Silver

Yellow Gold Diamond Cluster Ring - 14k Round Brilliant
Located in Greensboro, NC
& 14k White Gold Stone Information Natural Diamonds Carat(s): .04ctw Cut: Round Brilliant Color: J - K
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

14K White Gold Diamond Engagement Ring 1.00tdw, 7.8g
Located in Laguna Beach, CA
.30 carats. Most the diamonds average i , j, k color range. Clarity averages i1 clarity. The ring
Category

Late 20th Century Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Art Deco Inspired 1.00 Carat Old European Cut Diamond Emerald Platinum Ring
Located in Beverly Hills, CA
European cut diamond of 1.00 carat, graded K color, SI2 clarity. Accented by 30 calibré cut emeralds with a
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Emerald, Platinum

Art Deco Inspired 1.00 Carat Old European Cut Diamond Emerald Platinum Ring
Located in Beverly Hills, CA
European cut diamond of 1.00 carat, graded K color, SI2 clarity. Accented by 30 calibré cut emeralds with a
Category

21st Century and Contemporary Art Deco Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Emerald, Platinum

Art Deco Ruby and Diamond Cluster Ring
Located in London, GB
(1mm) Rose Cut Diamond Dimensions: 30 (1mm) Tested As: 18ct Gold & Platinum Period: Circa. 1930. Box
Category

Early 20th Century Art Deco Cluster Rings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold, Platinum

0.80ctw Diamond Swirl Cocktail Ring 14k White Gold Size 7.25
Located in McLeansville, NC
Gem: Natural Diamonds - 0.80 Total Carats, Round Brilliant Cut, VS2 - I1 Color, H - K Clarity Metal
Category

2010s Cocktail Rings

Materials

Diamond, White Gold

14 Karat Yellow Gold GIA Diamond Sea Horse Earrings
By Thomas Kurilla
Located in New York, NY
actually life size. 30 mm long with diamond eyes. The life and energy of the ocean is beyond compare. It
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

0.47ctw Diamond Crossover Ring 10k Yellow Gold Size 7 Cocktail
Located in McLeansville, NC
Gemstone Information: - Natural Diamonds - Total Carats - 0.29ctw Cut - Round Brilliant Color - K
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, 10k Gold, Yellow Gold

White Gold Sapphire & Diamond Ring - 14k Oval 1.75ctw
Located in Greensboro, NC
Natural Diamonds Carat(s): .60ctw Cut: Round Brilliant Color: J - K Clarity: SI1 - SI2 Total Carats
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

14 Karat White Gold Sapphire and Diamond Dangle Earrings
Located in Washington Depot, CT
Diamond color: J-K Size: 30 mm x 10 mm Weight: 2.9 dwt. / 4.6 gr. Stamped: 14K Very good condition
Category

20th Century Dangle Earrings

Materials

Diamond, Sapphire, White Gold

Art Deco GIA 1.71 Carat Old Mine Cut Diamond Platinum Ring
Located in Beverly Hills, CA
diamond of 1.71 carats, accompanied by GIA #5231183143 stating the diamond is K color, SI2 clarity
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, White Diamond, Platinum

Art Deco French GIA 5.50 Carat Total Weight Diamond Platinum Drop Earrings
Located in Beverly Hills, CA
is K color, I1 clarity and one GIA pear brilliant cut diamond of 1.76 carats, accompanied by GIA
Category

Vintage 1920s Art Deco Drop Earrings

Materials

Diamond, White Diamond, Brown Diamond, Gold, White Gold, Platinum

Mid Century Diamond 14k Gold Two Tone Cocktail Ring
Located in Beverly Hills, CA
One Mid Century Diamond 14k Gold Two Tone Cocktail Ring. Featuring 25 round brilliant cut diamonds
Category

Vintage 1960s Cocktail Rings

Materials

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

Vintage 10 Karat White Gold and Diamond Star Pendant
Located in Washington Depot, CT
round single cut diamonds set in classic 10K white gold. Approximate total diamond weight: .30 ct
Category

20th Century Pendant Necklaces

Materials

Diamond, White Gold

Yellow Gold Diamond Solitaire Engagement Ring - 14k Princess .60ct
Located in Greensboro, NC
& 14k White Gold Stone Information Natural Diamond Carat(s): .60ct Cut: Princess Color: K Clarity: VS1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

Inspired Blue Sapphire White Diamond Gold Drop Ring
By Natkina
Located in Montreux, CH
Ring White Gold 14 K (Match Earrings Available) Diamond 30-RND-0,15-G/VS1A Diamond 29-RND-0,07-G
Category

2010s Fashion Rings

Materials

Diamond, Sapphire, Blue Sapphire, 14k Gold

Vintage 0.97ctw VS Round Diamond Engagement Ring Platinum Size 6.25 GIA
Located in McLeansville, NC
Gemstone Information: - Natural Diamond - (center) Carats - 0.88ct Cut - Round Brilliant Color - K
Category

2010s Engagement Rings

Materials

Diamond, Platinum

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30k Diamond For Sale on 1stDibs

Find the exact 30k diamond 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, white gold and 14k gold — can elevate any look. Find an antique version now, or shop for 8723 vintage or 12447 modern creation for a more contemporary example of these cherished accessories. Finding the perfect 30k diamond 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 30k diamond over the years, but those made by Cartier, Fabergé and Luigi Ferrara are often thought to be among the most beautiful. A 30k diamond can be a stylish choice for most occasions, but diamond rings, from our inventory of 16379, can add a particularly distinctive touch to your look, day or night. A round cut version of this piece has appeal, but there are also oval cut and brilliant cut versions for sale. Finding a 30k diamond for sale for women should be easy, but there are 5467 pieces available to browse for unisex as well as men, too.

How Much is a 30k Diamond?

On average, a 30k diamond at 1stDibs sells for $3,803, while they’re typically $1 on the low end and $5,000,000 for the highest priced versions of this item.