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Art Deco Style 18 Karat Gold 0, 40 Karat White Diamonds Carnelian Dangle Earrings
By Rossella Ugolini
Located in Rome, IT
interpersonal relationships. Rossella Ugolini Art Deco Style 18Karat Gold 0,40 Karat White Diamonds Amethyst
Category

2010s Italian Art Deco Dangle Earrings

Materials

Amethyst, Agate, White Diamond, Carnelian, White Gold, Yellow Gold, 18k ...

Australian Opal Diamond 14 Karat Yellow Gold Pendant Necklace
By SCALA GIOIELLI
Located in Marcianise, IT
weight 1 karat Opals weight 40 karat Chain Lenght 42 cm
Category

21st Century and Contemporary Italian Artisan Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, Yellow Gold

Coral Opals 14 Karat Yellow Gold Beaded Necklace
By SCALA GIOIELLI
Located in Marcianise, IT
mounted with coral beads and black opals Necklace total weight 26.40 grams Opals weight 40 karat Opas
Category

21st Century and Contemporary Italian Artisan Beaded Necklaces

Materials

Coral, Black Opal, 14k Gold, Yellow Gold

Handcraft Australian Pearls 18 Karat White Gold Diamonds Stud Earrings
By SCALA GIOIELLI
Located in Marcianise, IT
40 karat Pearls size 14.16 millimetres (ring price is not included in this list)
Category

21st Century and Contemporary Italian Artisan Stud Earrings

Materials

Diamond, Pearl, 18k Gold, White Gold

Brazilian Aquamarine Sapphires Diamonds 18 Karat White Gold Cuff Bracelet
By SCALA GIOIELLI
Located in Marcianise, IT
Aquamarine Weight 40 karat Diamonds Weight 0.48 karat Sapphires weight 9.12 karat bracelet lenght 19 cm
Category

21st Century and Contemporary Italian Artisan Cuff Bracelets

Materials

Aquamarine, Diamond, Sapphire, 18k Gold, White Gold

18 Karat Horse Pin .40 Carat Diamonds
Located in New York, NY
3D Bronco Brooch Pin .40ct natural diamonds, Rounds, Full Cuts. H-color Vs-2 clarity. 18kt yellow gold intricate flowing hair details 15.8 grams. Overall: 1.7 x 1.0 inch De...
Category

2010s American Brooches

Materials

Diamond, 18k Gold, Yellow Gold

18 Karat Horse Pin .40 Carat Diamonds
18 Karat Horse Pin .40 Carat Diamonds
W 1.7 in D 0.27 in L 1 in
14 Karat Yellow Gold Diamond Stud Earrings .40 tcw.
Located in Washington Depot, CT
Vintage 14 Karat Yellow Gold Diamond Stud Earrings- These sparkling stud earrings each feature one
Category

20th Century Stud Earrings

Materials

Diamond, Yellow Gold

14 Karat Tri-Color Gold Brushed Ball Necklace 40 Grams
By Harbor Diamonds
Located in New York, NY
14 Karat Gold necklace featuring 24 tri color gold balls in a brushed finish weighing 40 grams
Category

Vintage 1980s Contemporary Beaded Necklaces

Materials

Gold, Rose Gold, White Gold

14 Karat Yellow Gold Diamond Stud Earrings .40 Ct. Twt
Located in Washington Depot, CT
14 Karat Yellow Gold Diamond Stud Earrings .40 ct. twt.- These sparkling earrings each feature one
Category

20th Century Stud Earrings

Materials

Diamond, Yellow Gold

14 Karat Yellow Gold Diamond Stud Earrings .40 TCW. #14873
Located in Washington Depot, CT
. Screw back closures. Approximate total diamond weight: .40 ct. Diamond color: K Diamond clarity: SI1
Category

20th Century Stud Earrings

Materials

White Diamond, Gold, 14k Gold, Yellow Gold

.40 Carat Natural Diamond Heart Pendant Flush Mount 14 Karat
Located in New York, NY
.40ct. Center Diamond Open Heart Necklace. Natural Round, Full cuts. I color I1 clarity. Sidei diamonds: .20ct H-color Si-1 Clarity Heart: 22 x 20mm 14Kt yellow gold 4.2 G...
Category

2010s American Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

.40 Carat Victorian Diamond 18 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.5 Metal Type: 18K Yellow Gold, Platinum prongs [Hallmarked, and Tested] Weight: 3.0 grams Center Diamond Details: Weight: .40ct Cut: Old European brilliant Color: I Cla...
Category

Antique Early 1900s Unknown Victorian Engagement Rings

Materials

Diamond, Yellow Gold

.40 Carat Edwardian Diamond 18 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 5 Metal Type: 18karat Yellow Gold, Platinum Prongs [Hallmarked, and Tested] Weight: 1.9 grams Center Diamond Details: Weight: .40carat Cut: Old European brilliant Color:...
Category

Antique Early 1900s Unknown Edwardian Engagement Rings

Materials

Diamond, Yellow Gold

.40 Carat Diamond Gold Shine Pave Box Bracelet 14 Karat
Located in New York, NY
.40ct. Diamonds French pave "Box Set" 8 diamonds in total Full Cuts & rounds G-color, Vs-2 clarity 14kt. yellow gold bracelet is 3.8mm wide Made to add diamonds in future with...
Category

2010s American Tennis Bracelets

Materials

Diamond, 14k Gold, Yellow Gold

.40 Carat Natural Pear Shaped Sapphire Diamonds Drop Pendant 14 Karat
Located in New York, NY
.40ct Sapphire necklace. 5x4 mm .22ct natural round diamonds G color, Vs2 Clarity 14 karat
Category

2010s American Pendant Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

Certified 40 Carat Emerald and Diamond Necklace in 18 Karat Gold
Located in Fukuoka City, Fukuoka
*39 Carat Emerald and Diamond Necklace in 18kt Gold for an Unforgettable Style Statement* Emerald weight: 39.92 carat - This exquisite necklace features a stunning emerald gemstone,...
Category

2010s Art Nouveau Drop Necklaces

Materials

Diamond, Emerald, Gold, 18k Gold

40 Carat Natural Fancy Multicolored Diamond Bead Necklace in 18 Karat
By MOGULDIAM INC
Located in New York, NY
and brown hues ) weighing 40 carats. Handcrafted in USA by a master jeweler in 18k gold. Elegant and
Category

Early 2000s American Contemporary Beaded Necklaces

Materials

Diamond, 18k Gold

40 Carat Natural Emerald Cocktail Tennis Bracelet 14 Karat Yellow Gold
Located in New York, NY
the Emeralds is approximately 40 carat. The bracelet is expertly crafted with 22.12 grams of 14
Category

2010s Tennis Bracelets

Materials

Emerald, 14k Gold, Yellow Gold

40 Carat Natural Fancy Multicolored Diamond Bead Necklace in 18 Karat
By MOGULDIAM INC
Located in New York, NY
and brown hues ) weighing 40 carats. Handcrafted in USA by a master jeweler in 18k gold. Elegant and
Category

Early 2000s American Contemporary Beaded Necklaces

Materials

Diamond, 18k Gold

40 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 22''
Located in Great Neck, NY
40 Carats Total Weight Heavy Gold Cuban Necklace Chain 14 Karats Gold 22 inch, 15 mm wide, Average
Category

2010s American Chain Necklaces

Materials

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

40 Carats Diamonds Cuban Two-Tone Necklace Chain 14 Karats Gold 22''
Located in Great Neck, NY
40 Carats Total Weight Heavy Gold Cuban Necklace Chain 14 Karats Gold 22 inch, 15 mm wide, Average
Category

2010s American Chain Necklaces

Materials

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

Joseph Orlando 18 Karat Rose Gold and .40 Carat Diamond Ribbed Cufflinks
By Joseph Orlando
Located in New York, NY
18 karat rose gold square high polished cufflinks ,ribbed, set with round brilliant diamonds. The
Category

Early 2000s German Modern Cufflinks

Materials

Diamond, Rose Gold

14 Karat White Gold .40 Carat Round Natural Diamond Eternity Band Ring
By Blue Nile
Located in Baltimore, MD
14 Karat White Gold .40 Carat Round Natural Diamond Eternity Band Ring Metal: 14k white gold
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, White Gold

Koala Pendant in .40 Carats of Tsavorites in 18 Karat White Gold
Located in Atlanta, GA
Item Details: Metal Type: 18 Karat White gold Weight: 1 gram Features Tsavorites, .40 Carats
Category

1990s Unknown Modern Pendant Necklaces

Materials

Tsavorite, 18k Gold

14 Karat White Gold .40 Carat Half Natural Diamond Wedding Band Ring
Located in Baltimore, MD
14 Karat White Gold .40 Carat Natural Diamond Half Wedding Band Ring Size 5 Metal: 14k white gold
Category

21st Century and Contemporary American Modern Band Rings

Materials

Diamond, 14k Gold, White Gold

.40 Carat Princess Cut Natural Ruby Invisible Cluster Ring 14 Karat
Located in New York, NY
Braid Twist Shoulders & Invisible Set Squared .40ct. Natural Rubies Ring Full cut and brilliant Clean clarity and transparent 14ky white gold Durable for the everyday wear 2.9 ...
Category

2010s American Cluster Rings

Materials

Ruby, 14k Gold, White Gold

.40 Carat Natural Fancy Color Yellow Brown Diamond Ring 14 Karat
Located in New York, NY
Halo Raised Solitaire .40ct Natural Fancy Yellow Brown Diamond. Vs-2 clarity. .50ct. Side natural round diamonds: Vs-2 Clarity G-color. Ring measures: 10mm wide 9.3mm Depth...
Category

2010s American Solitaire Rings

Materials

Brown Diamond, 14k Gold, White Gold

.40 Carat Total Weight Edwardian Diamond 14 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: 14 karat Yellow Gold [Hallmarked, and Tested] Weight: 2.0 grams
Category

Antique Early 1900s Unknown Edwardian Engagement Rings

Materials

Diamond, Yellow Gold

.40 Carat Vintage Victorian Natural Diamond Ring 18 Karat Raised Crest
Located in New York, NY
Victorian Vintage Solitaire .40ct. Natural round diamond ring Si-1 clarity H-color Very good Cut / Full cut Brilliant 18kt yellow gold Ring size: 9.5 (Complimentary resizin...
Category

20th Century American Victorian Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

20th Century 1, 40 Carat Emerald Diamonds 18 Karat Yellow Gold Ring
Located in Poitiers, FR
Ring in 18 Karat yellow gold. Charming antique ring, it is decorated on its top of a round cabochon
Category

Early 20th Century French Belle Époque Engagement Rings

Materials

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

1940s 1, 40 Carat Diamonds Cultured Pearls 18 Karat Rose Gold Ring
Located in Poitiers, FR
Ring in 18 karat rose gold, owl hallmark and platinum. Incredible tank ring, it features a large
Category

Vintage 1940s French Retro Cocktail Rings

Materials

Cultured Pearl, Pearl, White Diamond, Diamond, Rose Gold, Gold, Platinum...

Diamond Tennis Bracelet 18 Karat White Gold Diamond 6.14 Carat/40 Pcs
By Natkina
Located in Montreux, CH
BRACELET 18K White Gold Diamond 6.14 Cts/40 Pcs
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, White Gold

40 Carat Blue Topaz Earrings in 18 Karat White Gold with Diamonds
By Sunita Nahata
Located in Hong Kong, HK
Happy Moods Collection - this particular collection uses a vibrant variety of color gemstones to reflect the different feelings of happiness. These elegant styles boast bold and bea...
Category

21st Century and Contemporary Hong Kong Contemporary Dangle Earrings

Materials

Topaz, Pearl, Garnet, White Diamond, Diamond, Amethyst, Gold, White Gold...

18 Karat White Gold Tennis Bracelet with 40 Round Diamonds 12.30 Carat
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
This is very beautiful 18k white gold custom made tennis bracelet with 40 round diamonds color F-G
Category

21st Century and Contemporary American Contemporary Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Exquisite .40 Carat Natural Diamond 14 Karat Solid Yellow Gold Stud Earrings
Located in Los Angeles, CA
Exquisite .40 Carats Natural Diamond 14K Solid Yellow Gold Stud Earrings Amazing looking piece
Category

2010s American Stud Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Retro 40 Carat Citrine and 18 Karat Yellow Gold Statement Cocktail Ring
Located in beverly hills, CA
A boldly scaled Retro ring featuring a magnificent citrine of approximately 40 carats highlighted
Category

Vintage 1940s Unknown Retro Cocktail Rings

Materials

18k Gold, Yellow Gold

40 Carat Oval Ethiopian Opal Pendant / Necklace 14 Karat Yellow Gold Necklace
Located in New York, NY
Approximately 40 Carat Oval Ethiopian Opal Pendant / Necklace 14 Kt white Gold Necklace with
Category

2010s Pendant Necklaces

Materials

Opal, Gold, 14k Gold, White Gold

0, 40 Carat White Diamonds, 18 Karat White Gold Engagement/Solitaire Ring
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS AND ONGOING PROMOTIONS. Beautiful solitaire ring in 18 karat white gold structure
Category

2010s Italian Modern Engagement Rings

Materials

White Diamond, 18k Gold, White Gold

.40 Carat Diamond Floret Wedding Anniversary Stacking Band 14 Karat White Gold
Located in Lambertville , NJ
Sparkle and Romance. The Ring is entirely crafted in 14 Karat White Gold and is size 6. The Band measures
Category

2010s American Contemporary Band Rings

Materials

White Diamond, Diamond, 14k Gold, White Gold

.40 Carat Total Weight Edwardian Diamond 14 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: 14K Yellow Gold [Hallmarked, and Tested] Weight: 3.0 grams Diamond Details: Weight: .40ct, total weight Cut: Old European brilliant Color: G-H Clarity: V...
Category

Antique Early 1900s Unknown Edwardian Engagement Rings

Materials

Diamond, Yellow Gold

.40 Carat Total Weight Victorian Diamond 14 Karat Rose Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.26 Metal Type: 14K Rose Gold [Hallmarked, and Tested] Weight: 2.08 grams Center Stone Details: Type: Ruby, Natural Weight: .40ct, total weight Cut: Old European brillia...
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

Diamond, Rose Gold

Cellini Jewelers 18 Karat Rose Gold Ring with .40 Carat Yellow Diamond Center
By Cellini
Located in New York, NY
This 18 karat rose gold ring is designed with shiny rose gold motifs that are approximately 18mm
Category

2010s Italian Modern Band Rings

Materials

Yellow Diamond, 18k Gold, Rose Gold

Victorian French 18 Karat Yellow Gold Navette Link 40 IN Long Antique Necklace
Located in Philadelphia, PA
hallmarks for 18 karat gold Circa: 1860s Width at widest: 3/16 inch Total length: 40 inches Total weight
Category

Antique 1860s Victorian Link Necklaces

Materials

Gold, Yellow Gold

GIA Certified .40 Carat Victorian Diamond 14 Karat Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 5.5 Metal Type: 14K Yellow Gold [Hallmarked, and Tested] Weight: 2.7 grams Center Diamond Details: Weight: .40ct Cut: Old Mine Brilliant (Antique Cushion) Color: J Clarit...
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

Diamond, Yellow Gold

18 Karat Yellow Gold 40 Pointers Oval-Cut Natural Emerald Eternity Band Ring
By Gems Paradise
Located in Jaipur, IN
18 Karat Yellow Gold 40 Pointers Oval-Cut Natural Emerald Eternity Band Ring This glorious emerald
Category

2010s Indian Contemporary Band Rings

Materials

Emerald, Yellow Gold, 18k Gold, Gold

Golden South Sea Pearl Diamond Drop Earrings .40 Carat 18 Karat Yellow Gold
By Harbor Diamonds
Located in New York, NY
diamonds weighing .40 carats total weight. Color G-H Clarity SI
Category

2010s American Contemporary Drop Earrings

Materials

Diamond, South Sea Pearl, Gold

PANIM 40 Carat Fancy Color Diamond Beads Cocktail Earrings 18 Karat White Gold
By PANIM
Located in Tsim Sha Tsui, Hong Kong
PANIM 40cts Fancy Color Diamond Beads Cocktail Earrings 18K White Gold These Panim fancy color diamond beads and briolette tassel earrings are a stunning addition to any jewelry co...
Category

2010s Hong Kong Modern Lever-Back Earrings

Materials

White Diamond, Yellow Diamond, 18k Gold

Cellini 18 Karat Yellow Gold Pink Tourmaline and .40 Carat 3 Petal Earrings
By Roberto Casarin
Located in New York, NY
These lovely 18kt yellow gold flower earrings feature 3 beautiful cabochon pink tourmaline petals with a pave diamond center, providing just the right amount of sparkle to enhance th...
Category

Early 2000s Italian Modern Clip-on Earrings

Materials

Diamond, Tourmaline, 18k Gold, Yellow Gold

.40 Carat Natural Diamonds Mod- Goth Deco Flat Screw Stud Earrings 14 Karat
Located in New York, NY
Mod - Goth Deco Circular Flat Screw earrings. .40cts of natural round diamonds: G-color, Vs-2 clarity. 14kt. white gold 3.1 grams. Earrings measure: 9.2mm diameter Comfortab...
Category

2010s American Stud Earrings

Materials

Diamond, 14k Gold, White Gold

.40 Carat Diamonds Dangle Earrings 14 Karat Two-Toned F/VS Mirror Finish
Located in New York, NY
Dangle Perfection! Two toned. .40ct. diamonds Rounds, full brilliant cuts Bead set, pave. Vs-2 clarity. F-G color. 14kt. White & Yellow gold. 3.7 Grams. Overall measurem...
Category

2010s American Dangle Earrings

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

18 Karat White Gold Diamond and Fine Cut 40 Carats Blue Topaz Tennis Bracelet
By VR Jewels
Located in Houston, TX
This Fine Cut 40 ct Blue Topaz and Diamond Tennis Bracelet in 18K gold showcases 16 endlessly
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, Blue Topaz, Topaz, White Gold, 18k Gold, Gold

NWT $366, 747 Rare Fancy 18 Karat Gold Gorgeous 40 Carat Diamond Drop Necklace
Located in New York, NY
The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and Sparkling Magnificent Fancy Diamond Necklace. Necklace contains approx 40CTS of Be...
Category

21st Century and Contemporary Multi-Strand Necklaces

Materials

Diamond, Gold, 18k Gold

White Diamonds, 40 Carat South Sea Pearls, 18 Karat Gold Clip-On/Drop Earrings
Located in Marcianise, Marcianise (CE)
structure composed of 40 ct of two gorgeous south sea pearls adorned with 5.13 ct of white diamonds
Category

Vintage 1980s Retro Clip-on Earrings

Materials

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

.40 Carat Diamond White Gold Pendant
Located in Atlanta, GA
Length: .85 inches Metal Type: 18 karat White Gold Weight: 1.5 grams Center Diamond Details
Category

Early 2000s Unknown Contemporary Pendant Necklaces

Materials

White Diamond, 18k Gold, White Gold

.40 Carat Diamond Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.25 Metal Type: 14 karat Yellow Gold Weight: 3.1 grams Center Diamond Details Shape
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

White Diamond, 14k Gold, Yellow Gold

Magnificent 40 Carat Emerald and Diamond Bracelet
By GEMME
Located in New York, NY
Set in Platinum and 18 Karat Yellow Gold. Measures 6.5 inches.
Category

2010s American Link Bracelets

Materials

Diamond, Emerald

.40 Carat Total Weight Blue Sapphire Yellow Gold Pin
Located in Atlanta, GA
Metal Type: 14 karat Yellow Gold[Hallmarked, and Tested] Weight: 4.2 grams Sapphire Details
Category

Antique 1890s Unknown Victorian Brooches

Materials

Natural Pearl, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold

Georgian/Regency Intaglio Prasiolite Embossed 18 Karat Signet ring
Located in Napoli, IT
karat yellow gold Collet set with an Emerald cut Natural Green Prasiolite also called Green Amethyst
Category

Antique Early 19th Century European Regency Signet Rings

Materials

Quartz, 18k Gold

.40 Carat Total Weight Diamond White Gold Wedding Band
Located in Atlanta, GA
Item Details: Ring Size: 5.25 Metal Type: 18 Karat White Gold Weight: 1.8 grams Diamond Details
Category

Vintage 1930s Unknown Art Deco Band Rings

Materials

White Diamond, 18k Gold, White Gold

.40 Carat Total Weight Ruby Yellow Gold Engagement Ring
Located in Atlanta, GA
Ring Size: 6.90 Metal Type: 14 karat Yellow Gold Weight: 2.5 grams Color Stone Details: Type
Category

Antique 1890s Unknown Victorian Engagement Rings

Materials

White Diamond, Ruby, 14k Gold, Yellow Gold

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40 Karat For Sale on 1stDibs

Surely you’ll find the exact 40 karat you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using gold, 18k gold and white gold. Find an antique version now, or shop for 5912 vintage or 7146 modern creation for a more contemporary example of these cherished accessories. If you’re looking for a 40 karat from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th 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 40 karat has been a part of the legacy of many jewelers, but those produced by SCALA GIOIELLI, Rolex and Cartier are consistently popular. A 40 karat can be a stylish choice for most occasions, but diamond rings, from our inventory of 8006, 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. If you’re browsing our inventory for a 40 karat, 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 40 Karat?

On average, a 40 karat at 1stDibs sells for $3,500, while they’re typically $10 on the low end and $3,200,000 for the highest priced versions of this item.