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One Karat Diamond

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South Sea Pearl Diamond Ring in One 1.28 Carat 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold ring featuring one South Sea Pearl measuring 13-14 mm with a double diamond band
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, South Sea Pearl, White Gold

Three In One Diamond Tennis Bracelet 5.25 Carats G VS2-SI1 14 Karat White Gold
By Harbor Diamonds
Located in New York, NY
Three in one diamond tennis bracelet featuring 261 round brilliants weighing 5.25 Carats, in 14
Category

2010s Contemporary Tennis Bracelets

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

18 Karat White Gold and White Diamonds Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
The most exquisite diamonds and timeless designs created with superior craftsmanship. VANELELES
Category

21st Century and Contemporary British Romantic Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
The most exquisite diamonds and timeless designs created with superior craftsmanship. VANELELES
Category

21st Century and Contemporary British Romantic Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Single Earring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
The most exquisite diamonds and timeless designs created with superior craftsmanship. VANELELES
Category

21st Century and Contemporary Romantic Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Bow Pendant
By VANLELES DIAMONDS
Located in Mayfair, London, GB
whimsical style has fast become one of the signature collections for VANLELES. Lyla's Bow pendant set in
Category

2010s British Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Ribbon Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
perfect gift for someone special. Its whimsical style has fast become one of the signature collections for
Category

2010s British Contemporary Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Bow Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
perfect gift for someone special. Its whimsical style has fast become one of the signature collections for
Category

2010s British Contemporary Stud Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Bow Pendant
By VANLELES DIAMONDS
Located in Mayfair, London, GB
for someone special. Its whimsical style has fast become one of the signature collections for VANLELES
Category

21st Century and Contemporary British Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat Rose Gold and White Diamonds Bow Pendant
By VANLELES DIAMONDS
Located in Mayfair, London, GB
jewellery lovers, and the perfect gift for someone special. Its whimsical style has fast become one of the
Category

21st Century and Contemporary British Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

18 Karat White Gold, White Diamonds and Emeralds Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
print, this collection is truly one of a kind. A garden alight with floral fantasy and delicate flowers
Category

21st Century and Contemporary British Contemporary Stud Earrings

Materials

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

18 Karat Gold, Titanium, Diamonds and Blue Topaz Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
colourful gemstones and floral splendour. Inspired by vibrant African print, this collection is truly one of
Category

2010s British Contemporary Clip-on Earrings

Materials

Blue Topaz, Paraiba, Tourmaline, Topaz, White Diamond, Diamond, Titanium...

Tahitian Pearl Diamond Ring 0.33 Carats 18 Karat
By Harbor Diamonds
Located in New York, NY
18K White Gold ring featuring one center Tahitian Pearl measuring 10-11 mm flanked with 4 rows of
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Pearl, White Gold

18 Karat White Gold and White Diamonds Bow Cocktail Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
perfect gift for someone special. Its whimsical style has fast become one of the signature collections for
Category

2010s British Contemporary Cocktail Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat White Gold and White Diamonds Bow Cocktail Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
perfect gift for someone special. Its whimsical style has fast become one of the signature collections for
Category

21st Century and Contemporary British Contemporary Cocktail Rings

Materials

Diamond, White Diamond, 18k Gold, White Gold

18 Karat Rose Gold and White Diamonds Bow Band Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
become one of the signature collections for VANLELES. Lyla's Bow band ring crafted in 18K rose gold
Category

21st Century and Contemporary British Contemporary Band Rings

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

18 Karat Tahitian Pearl Diamond Pendant 0.83 Carats 15 MM
By Harbor Diamonds
Located in New York, NY
18 Karat white gold pendant featuring one grey Tahitian Pearl measuring 15 mm with a diamond cap of
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Pearl, White Gold

Italian Flat Paperclip Link Bracelet Diamond Clasp 14 Karat Yellow Gold
By Harbor Diamonds
Located in New York, NY
Made in Italy, this 14 karat yellow gold features 10 oversized paperclip links with one diamond
Category

2010s Italian Contemporary Link Bracelets

Materials

Diamond, 14k Gold, Yellow Gold

14 Karat Yellow Gold Diamond Feather Flexible Pendant 0.58 Carats
By Harbor Diamonds
Located in New York, NY
14 Karat Yellow Gold flexible feather pendant featuring 172 round brilliants weighing 0.58 carats
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

18 Karat Rose Gold, White Diamonds and Rubellite Ballerina Cocktail Ring
By VANLELES DIAMONDS
Located in Mayfair, London, GB
This ring is part of our Timeless Wonder collection, featuring one of a kind pieces inspired by
Category

21st Century and Contemporary British Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Rubelite, Sapphire, Pink Sapphire, 18k Gold, Ros...

Italian Flat Paperclip Link Bracelet Diamond Clasp 14 Karat White Gold
By Harbor Diamonds
Located in New York, NY
Made in Italy, this 14 karat yellow gold features 12 flat paperclip links with one white gold
Category

21st Century and Contemporary Italian Contemporary Link Bracelets

Materials

Diamond, 14k Gold, White Gold

18 Karat White Gold Tahitian Pearl Diamond Floral Bangle 0.07 Carats
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold open cuff bangle featuring one Tahitian Pearl measuring 11-12 MM and one floral
Category

2010s Contemporary Bangles

Materials

Diamond, Pearl, 14k Gold, White Gold

Freshwater Pearl Diamond Drop Pendant Necklace 14 Karat White Gold
By Harbor Diamonds
Located in New York, NY
14K White gold pendant necklace featuring one Freshwater pearl measuring 8-9 mm with a diamond bar
Category

2010s American Contemporary Drop Necklaces

Materials

Diamond, Freshwater Pearl, White Gold

18 Karat White Gold, Diamonds, Pink Sapphire, Ruby and Tsavorite Earrings
By VANLELES DIAMONDS
Located in Mayfair, London, GB
colourful gemstones and floral splendour. Inspired by vibrant African print, this collection is truly one of
Category

2010s British Romantic Dangle Earrings

Materials

Tourmaline, Tsavorite, Pink Sapphire, Sapphire, Ruby, White Diamond, Dia...

18 Karat Rose Gold Pink Freshwater Pearl Diamond Earring 0.27 Carats
By Harbor Diamonds
Located in New York, NY
18 Karat Rose Gold stud earring featuring one Pink Freshwater Pearl measuring 12-13 MM with 2 round
Category

2010s Contemporary Stud Earrings

Materials

Diamond, Freshwater Pearl, 18k Gold, Rose Gold

Yellow & White Diamond South Sea Pearl Pendant 0.37 Carats 18 Karat
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold pendant featuring one South Sea Pearl measuring 14-15 mm with a Radiant cut
Category

2010s Contemporary Pendant Necklaces

Materials

White Diamond, South Sea Pearl, White Gold

18 Karat White Gold, Diamonds, Pink Sapphires and Rubies Earrings and Bracelet
By VANLELES DIAMONDS
Located in Mayfair, London, GB
colourful gemstones and floral splendour. Inspired by vibrant African print, this collection is truly one of
Category

2010s British Contemporary Bangles

Materials

Diamond, White Diamond, Ruby, Pink Sapphire, Tsavorite, 18k Gold, White ...

18 Karat Tahitian Pearl South Sea Diamond Fashion Ring 0.50 Carats
By Harbor Diamonds
Located in New York, NY
18 Karat white gold fashion ring featuring one Tahitian pearl measuring 12 MM and one South Sea
Category

2010s Contemporary Fashion Rings

Materials

Diamond, Pearl, South Sea Pearl, White Gold

18 Karat White Gold, Diamonds, Pink Sapphire and Ruby Pendant and Bracelet
By VANLELES DIAMONDS
Located in Mayfair, London, GB
colourful gemstones and floral splendour. Inspired by vibrant African print, this collection is truly one of
Category

2010s British Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Ruby, Sapphire, Pink Sapphire, Tsavorite, 18k Go...

2.18 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 2.18 Carat White Diamonds. Set in an open
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

1.20 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement RIng
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 1.20 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

1.45 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 1.45 Carat White Diamonds. Set in an open
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

1.68 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 1.68 Carat White Diamonds. Set in an open
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.95 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 0.95 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.83 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 0.83 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.70 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 0.70 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.50 Carat Round Diamond Twisted 18 Karat White Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat White Gold, with a total of 0.51 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Topaz, Multi-gemstone, Peridot, Ruby, Sapphire, Blue Sapphire, Pink Sapp...

0.68 Carat Round Side Band Diamond Solitaire 18 Karat Rose Gold Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat Rose Gold, with a total of 0.68 Carat White Diamonds. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

South Sea Pearl Tahitian Diamond Lariat Necklace 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18 Karat White gold chain featuring two Pearls, one South Sea & one Tahitian measuring 12-13 MM
Category

21st Century and Contemporary American Contemporary Beaded Necklaces

Materials

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

18 Karat White Gold, Diamonds, Pink Sapphire, Ruby and Tsavorite Flower Bracelet
By VANLELES DIAMONDS
Located in Mayfair, London, GB
colourful gemstones and floral splendour. Inspired by vibrant African print, this collection is truly one of
Category

2010s British Contemporary Bangles

Materials

Diamond, White Diamond, Ruby, Sapphire, Pink Sapphire, Tsavorite, 18k Go...

Alphabet Initial - W - Letter Personal Diamond 0.14 Carat 9 Karat Gold Ring
By Hasbani Diamonds
Located in London, GB
Personal Jewellery Diamond 0.14 Carat Initial Fancy Script - W - Letter Ring 9 Karat Yellow Gold
Category

2010s British Modern More Rings

Materials

Diamond, Yellow Gold, Gold, 9k Gold

South Sea Pearl Diamond Ball Ring 0.78 Carats 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold fashion ring featuring one South Sea Pearl measuring 14-15 mm with a diamond
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, South Sea Pearl, White Gold

Italian 18 Karat White & Yellow Gold Diamond Disc Charm Necklace 1.12 Carats
By Harbor Diamonds
Located in New York, NY
18 Karat Yellow or White Gold necklace featuring graduated diamond disc weighing 1.12 Carats on a
Category

2010s Italian Contemporary Pendant Necklaces

Materials

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

1.50 Carat Tennis Line Round Diamond 18 Karat Gold Four Claw Riviera Bracelet
By Hasbani Diamonds
Located in London, GB
each sparkling stone and set each one individually. This delightful diamond tennis bracelet is as
Category

2010s British Modern Tennis Bracelets

Materials

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

18 Karat White Gold South Sea Pearl & Diamond Ball Ring 1.05 Carats
By Harbor Diamonds
Located in New York, NY
18 Karat White Gold twist fashion ring featuring one white South Sea Pearl measuring 10 MM and
Category

2010s Contemporary Fashion Rings

Materials

Diamond, South Sea Pearl, White Gold

1.20 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Engagement Love Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat Rose Gold, with a total of 1.20 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.95 Carat Round Diamond Twisted 18 Karat Rose Gold 4 Prong Love Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat Rose Gold, with a total of 0.95 Carat White Diamond. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

0.40 Carat Round Diamond Twisted Love 18 Karat Rose Gold 4 Prong Engagement Ring
By Hasbani Diamonds
Located in London, GB
ring. Handmade in 18 Karat Rose Gold, with a total of 0.40 Carat White Diamonds. Set in an open gallery
Category

2010s British Modern Engagement Rings

Materials

Blue Sapphire, Pink Sapphire, Yellow Sapphire, Green Sapphire, Tanzanite...

South Sea Pearl Diamond Bangle Bracelet 0.13 Carats 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18 Karat White gold bangle bracelet featuring one South Sea Pearl measuring 11-12 MM with a diamond
Category

2010s American Contemporary Bangles

Materials

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

Alphabet Initial -Y- Letter Personal Diamond 0.12 Carat 9 Karat Rose Gold Ring
By Hasbani Diamonds
Located in London, GB
Personal Jewellery Diamond 0.10 Carat Initial Fancy Script -Y- Letter Ring 9 Karat Rose Gold A
Category

2010s Modern More Rings

Materials

Diamond, Rose Gold, 9k Gold

14 Karat White Gold Diamond South Sea Pearl Open Bangle 0.13 Carats
By Harbor Diamonds
Located in New York, NY
14 Karat White Gold open bracelet cuff featuring 37 round brilliants weighing 0.13 Carats and one
Category

2010s Contemporary Cuff Bracelets

Materials

Diamond, South Sea Pearl, 14k Gold, White Gold

Alphabet Initial -Y- Letter Personal Diamond 0.12 Carat 9 Karat White Gold Ring
By Hasbani Diamonds
Located in London, GB
Personal Jewellery Diamond 0.10 Carat Initial Fancy Script -Y- Letter Ring 9 Karat White Gold A
Category

2010s European Modern More Rings

Materials

Diamond, 9k Gold, White Gold

Alphabet Initial – X - Letter Personal Diamond 0.10 Carat 9 Karat Rose Gold Ring
By Hasbani Diamonds
Located in London, GB
Personal Jewellery Diamond 0.10 Carat Initial Fancy Script - X - Letter Ring 9 Karat Rose Gold A
Category

2010s European Modern More Rings

Materials

Diamond, 9k Gold, Rose Gold

Alphabet Initial -Y- Letter Personal Diamond 0.15 Carat 9 Karat Yellow Gold Ring
By Hasbani Diamonds
Located in London, GB
Personal Jewellery Diamond 0.10 Carat Initial Fancy Script -Y- Letter Ring 9 Karat Yellow Gold A
Category

2010s European Modern More Rings

Materials

Diamond, 9k Gold, Yellow Gold

Vintage Large Double Floral Diamond Brooch 1 Carat 18 Karat Gold 46.7 Grams
By Harbor Diamonds
Located in New York, NY
One large brooch featuring two florals with round brilliants weighing approximately 1.25 Carats in
Category

Vintage 1960s Contemporary Brooches

Materials

Diamond, Gold, 18k Gold

Tahitian Pearl Diamond Starfish Pendant Necklace 0.13 Carat 18 Karat White Gold
By Harbor Diamonds
Located in New York, NY
18K White gold pendant necklace featuring one diamond starfish motif weighing 0.13 carats and a
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Pearl, White Gold

Oval Cut Morganite Diamond Halo Cocktail Ring 12.99 Carats 18 Karat Rose Gold
By Harbor Diamonds
Located in New York, NY
18 Karat Rose Gold cocktail ring featuring one Pink Salmon color Morganite weighing 11.62 Carats
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Morganite, 18k Gold, Rose Gold

2 Carat Riviera Line Round Diamond 18 Karat Gold Four Claw Tennis Bracelet
By Hasbani Diamonds
Located in London, GB
each sparkling stone and set each one individually. This delightful diamond tennis bracelet is as
Category

2010s British Modern Tennis Bracelets

Materials

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

5 Carat Four Prong Round Diamond 18 Karat Gold Riviera Line Tennis Bracelet
By Hasbani Diamonds
Located in London, GB
each sparkling stone and set each one individually. This delightful diamond tennis bracelet is as
Category

2010s British Modern Tennis Bracelets

Materials

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

3 Carat Round Diamond 18 Karat Gold Four Claw Riviera Line Tennis Bracelet
By Hasbani Diamonds
Located in London, GB
each sparkling stone and set each one individually. This delightful diamond tennis bracelet is as
Category

2010s British Modern Tennis Bracelets

Materials

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

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One Karat Diamond For Sale on 1stDibs

Surely you’ll find the exact one karat diamond 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 Yellow Gold. Our collection of these items for sale includes 39 vintage editions and 106 modern creations to choose from as well. Making the right choice when shopping for a one karat diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. There have been many well-made iterations of the classic one karat diamond over the years, but those made by Mousson Atelier, Goshwara and Alex Soldier are often thought to be among the most beautiful. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes brilliant cut and sugarloaf cabochon alternatives. When shopping for a one karat diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a One Karat Diamond?

On average, a one karat diamond at 1stDibs sells for $6,425, while they’re typically $449 on the low end and $36,693 for the highest priced versions of this item.
Questions About One Karat Diamond
  • 1stDibs ExpertFebruary 22, 2021
    Yes, yellow diamonds are typically more expensive than white ones. While a 0.7 carat white diamond costs around $1,500, a 0.7 carat yellow diamond will usually cost $6,500.