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Tiffany Co. Diamond Platinum Fireworks Earrings
By Tiffany Co.
Located in Bethesda, MD
These dazzling earrings feature of burst of fiery diamonds. 42 brilliant diamonds weigh .28 carats
Category

Early 2000s American Stud Earrings

Materials

Diamond, Platinum

Vintage 14 Karat Gold Retro 0.42 Carat Engagement Ring, #NCR278, circa 1950s
Located in Addison, TX
This classic diamond engagement ring features a lively .42 carat solitaire Diamond set in the
Category

Vintage 1950s Engagement Rings

Materials

Diamond, White Gold, 14k Gold

Rose Gold Diamond Heart Necklace
Located in Honolulu, HI
" Pendant Measurements: 1" Diamond Count: 36 round brilliant & 42 baguettes Diamond Carat Weight: 0.35
Category

21st Century and Contemporary Unknown Modern Pendant Necklaces

Materials

Diamond, 10k Gold, Rose Gold

Star Moon Diamond Stud Earrings
By Meghna Jewels
Located in Hoffman Estate, IL
Cast from sterling silver, these studs earrings are hand set with .42 carats of shimmering diamonds
Category

21st Century and Contemporary Unknown Modern Stud Earrings

Materials

Diamond, Sterling Silver

Emerald and Multi-Shaped Diamond Ring
By GEMME
Located in New York, NY
approximately 6.03 Carats. 42 Diamonds weighing approximately 5.82 Carats. Finger Size 5. Can be made to order
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, Emerald, Platinum

Art Deco Marquise Diamond and Sapphire Ring
Located in Bethesda, MD
approximately 1.50 carats. The additional 42 round diamonds weigh approximately 1 carat. Signed Berg & Co. for
Category

Vintage 1910s American Art Deco Cluster Rings

Materials

Diamond, Sapphire

Roberto Coin 18 Karat Diamond Woven Necklace
By Roberto Coin
Located in Houston, TX
diamonds set in white gold. There are forty-two (42) round diamonds with total carat weight of 0.80; they
Category

1990s Italian Choker Necklaces

Materials

Diamond, 18k Gold

Aaron Basha Sapphire and Diamond Egg Charm Pendant
By Aaron Basha
Located in Bethesda, MD
15 Diamonds=.42 carats ♦ Circa: 1 990s ♦ Size: ¾ X ½ inch excluding bale ♦ Packaging: Pampillonia
Category

1990s Italian Necklace Enhancers

Materials

Diamond, Sapphire, 18k Gold

Sapphire and Diamond White Gold Tennis Line Bracelet
Located in Miami Beach, FL
and round diamonds. Total of 42 diamonds: 0.02 carats each; 0.84 carats estimated total weight. Total
Category

Mid-20th Century Tennis Bracelets

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Titanium Diamond Amethysts 18KT Gold Made in Italy Brooch
By Margherita Burgener
Located in Valenza , IT
and safe closing is in 18 KT white gold. 18KT white gold total grams 5.50 n.42 diamonds total carats
Category

21st Century and Contemporary Italian Contemporary Brooches

Materials

Diamond, White Diamond, Amethyst, Gold, 18k Gold, Titanium

TIFFANY Co. 18K Gold Diamond Signature X Cufflinks Cuff links
By Tiffany Co.
Located in Los Angeles, CA
: 14.80 grams Diamond: 42 round brilliant diamonds, carat total weight .42ct Hallmark: TIFFANY&CO. 750 ©
Category

2010s American Cufflinks

Materials

Diamond, 18k Gold

GIA Blue Sapphire Diamond Ring in 14k White Gold
Located in Honolulu, HI
Diamond Count: 48 diamonds Diamond Shape: 6 Square, 42 round Diamond Weight: 0.54 carats Condition
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Emerald Cut Chrysoberyl Diamond Engagement Cocktail Ring 14 Karat White Gold
By Alberto
Located in GREAT NECK, NY
14K White Gold 1 Emerald Cut Chrysoberyl at 5.91 Carats 42 Brilliant Round White Diamonds at 0.42
Category

2010s American Contemporary Cocktail Rings

Materials

Chrysoberyl, Diamond, White Diamond, White Gold, 14k Gold

Luminous 2.42ct Diamonds Drop Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
earrings are a dazzling showcase of refined sparkle and timeless design. Set with 42 round diamonds
Category

2010s Israeli Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Yoko London Freshwater Pearl and Diamond Earrings in 18 Karat White Gold
By Yoko London
Located in London, GB
a truly show-stopping look. - 10-10.5mm Freshwater Pearls - 42 Diamonds (Total Carat Weight
Category

2010s British Contemporary Drop Earrings

Materials

Diamond, White Diamond, Pearl, Cultured Pearl, Freshwater Pearl, 18k Gol...

Blue Sapphire and Diamond Dangle Earrings in 18k White Gold
By Sarosi By Timeless Gems
Located in Los Angeles, CA
carats total 62 round brilliant-cut diamonds, .42 carats total
Category

21st Century and Contemporary North American Artisan Dangle Earrings

Materials

Diamond, Blue Sapphire, Sapphire, Gold, 18k Gold, White Gold

Diamond South Sea Pearl Earrings 14k Gold Large Certified
Located in Brooklyn, NY
-13.65 MM Number of Pearls 2 Color White Overtone Rose' Luster Medium Quality A Number of Diamonds: 42
Category

2010s Modern Dangle Earrings

Materials

Diamond, Cultured Pearl, South Sea Pearl, Pearl, 14k Gold, Yellow Gold, ...

Opal, Blue Sapphire and Emerald Ring Set in 18 Karat Gold with Diamonds
Located in Hong Kong, HK
diamond . The opal weight is 6.91 carats , blue sapphire weight is 6.53 carats , emerald weight is .42
Category

2010s Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, Blue Sapphire, Gold

Clover Brooch with Rubies Diamonds in 18 Karat White Gold by Meister
Located in Lucerne, CH
cut diamond weighing 0.20 carats. The composition is completed by 42 diverse diamonds, totaling 0.45
Category

21st Century and Contemporary Swiss Modern Brooches

Materials

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

David Yurman Black Orchid Albion Jewelry Suite w Ring, Earrings, Pendant
By David Yurman
Located in Mount Kisco, NY
lavender amethyst for a complete jewelry outfit; -Black Orchid Albion 17mm Cocktail Ring with .42 carat
Category

2010s American Stud Earrings

Materials

Diamond, Amethyst, Sterling Silver

Vintage Style Sleeping Beauty Turquoise Ring in 14 Karat White and Yellow Gold
Located in Hong Kong, HK
blue, 42 diamonds with a combined weight of 0.18 carats create a glittering halo around the centerpiece
Category

2010s Hong Kong Art Deco Cocktail Rings

Materials

Turquoise, 14k Gold, White Gold, Yellow Gold

2.57 Carat Cushion Blue Sapphire and Diamond Platinum Ring
By David Gross Group
Located in New York, NY
2.57 carat cushion blue sapphire with straight bullet diamonds .42 carats set in a platinum ring.
Category

2010s American Contemporary Three-Stone Rings

Materials

White Diamond, Blue Sapphire, Platinum

2.76 Carat Pink Natural Sapphire and Diamond Halo Drop Platinum and 18k Earrings
By David Gross Group
Located in New York, NY
2.76 carat emerald cut pink mozambique sapphires (no heat) and 42 round diamonds .39 carats halo
Category

2010s American Drop Earrings

Materials

Diamond, Pink Sapphire, 18k Gold, Platinum

.42 Carat Diamond Platinum Engagement Ring
Located in Tampa, FL
A sparkling and beautiful Platinum Art Deco diamond antique engagement ring that features a lovely
Category

Vintage 1920s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

42 Carat Diamond Riveria Double Necklace
Located in Saint Louis, MO
Gorgeous 42ct diamond rivera double necklace set in 18kt white gold. This convertible necklace can
Category

21st Century and Contemporary Unknown Modern Multi-Strand Necklaces

Materials

Diamond, 18k Gold

.42 Carats Diamonds Gold Halo Engagement Ring
By Gabriel Co.
Located in Columbia, MO
Gold Diamond Engagement Ring .30 carat round brilliant J/VS2 quality center diamond .42 carat total
Category

2010s American Engagement Rings

Materials

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

Whitehouse Brothers .42 Carat Diamond Gold Engagement Ring Set
Located in Tampa, FL
") and features a .42ct. apx. European cut diamond with SI1 clarity and a fabulous E-F color. The .20ct
Category

Vintage 1910s Unknown Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

0, 42 Carats Diamonds 18 Carats White Gold Hoop Earrings
By Les Pierres de Julie
Located in Paris, FR
( 0,394 x 0 inch) weight of diamonds: 0.42 carats total weight: 2.60 g 18 carats white gold, 750/1000th
Category

2010s French Contemporary Hoop Earrings

Materials

Diamond, 18k Gold, White Gold

Lovely Victorian Era .42 Carat Diamond Rose Gold Engagement Ring
Located in Los Angeles, CA
centering a 0.42ct Old Mine Cut diamond with an approximate color of G-H and SI clarity. The rose gold
Category

Antique Late 19th Century Victorian Engagement Rings

Materials

Diamond, 14k Gold

Trillion 14 Karat White Gold Diamond Ring
By Mary Gallagher
Located in Foxborough, MA
texture engulfs a stunning .42 carat diamond. The rounded prongs and low profile and set of this stone
Category

2010s American Artist Engagement Rings

Materials

Diamond, White Gold

Victorian Gypsy-Set .42 Carat Old European Cut Diamond Solitaire
Located in Brooklyn, NY
.42 ct old European cut diamond. Materials: 18k yellow gold, .42ct old European cut diamond Age: c
Category

Antique 1880s British Victorian Solitaire Rings

Materials

Diamond, 18k Gold

Huge 42 Carat Persian Turquoise Diamond Gold Ring
Located in Miami, FL
A Magnificent Persian Turquoise Fine gold mount and a stunning large stone. Sure to become your favorite cocktail ring! Very RARE find The turquoise has an intense, yet very plea...
Category

Vintage 1940s Cocktail Rings

Materials

Turquoise, Yellow Gold

14 Karat Yellow Gold Diamond Nugget Pendant .42 Carat TW SI1-SI2; G-K 12.0 Grams
Located in Daytona Beach, FL
14 Karat Yellow Gold Diamond Nugget Pendant .42 Carat TW SI1-SI2; G-K . The diamonds are round
Category

Vintage 1980s Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

11.20 Carat Diamond Cluster 18 Karat White Gold Drop Earrings
By Butani
Located in Hong Kong, Kowloon
: 18K White Gold 2 Pear Diamonds: 1.06 carats 42 Marquise Diamonds: 7.04 carats 54 Round Diamonds: 3.1
Category

2010s Hong Kong Contemporary Drop Earrings

Materials

Diamond, White Diamond, 18k Gold, White Gold

.56 Carat Greyish Rough Diamond Engagement Ring
Located in Columbia, MO
rough cut cushion shaped diamond is .42 carats and is surrounded by white round diamonds that weigh
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Gold, 14k Gold, White Gold

Chanel Style Cultured Pearls Diamonds 18 Carats White Gold Cocktail Ring
Located in Paris, FR
approximate weight of the 42 diamonds : 0.42 carats Finger size : 55 1/2 (US size : 7 1/2) 18 carats white
Category

Early 2000s French Contemporary Cocktail Rings

Materials

Diamond, Cultured Pearl, 18k Gold, White Gold

Rolex Ladies 18k Gold/SS Datejust, 2.00 carats Diamond Bezel/Dial Model #6917
By Rolex
Located in Birmingham, MI
18k yellow gold channel-set bezel with fine white full cut diamonds, 42 diamonds weigh 2.00 carats
Category

20th Century Wrist Watches

Materials

Diamond, 18k Gold, Steel

Rolex Ladies 18k Gold/SS Datejust, 2.00 Carats Diamond Bezel/Dial Model #6917
By Rolex
Located in Birmingham, MI
18k yellow gold channel-set bezel with fine white full cut diamonds, 42 diamonds weigh 2.00 carats
Category

Vintage 1970s Wrist Watches

Materials

Diamond, 18k Gold, Steel

Cartier Sapphire Diamond Gold Earclips
By Cartier
Located in Atlanta, GA
set in the center with 8 cabochon sapphires weighing approximately 8.00 carats, accented by 42 round
Category

Late 20th Century French Clip-on Earrings

Materials

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

Retro Pearl 4.60 Diamonds 18 Karat White Gold Marquise Cocktail Ring
Located in Paris, FR
Diamonds' weight : 4.60 carats (42 brilliant diamonds and 5 navette diamonds) Ring's Dimensions : 35 mm
Category

Vintage 1970s French Retro Cocktail Rings

Materials

Diamond, Cultured Pearl, 18k Gold

Magnificent Platinum and Diamond Necklace
By Valérie Danenberg
Located in New York, NY
An impressive platinum necklace set with 42 carats of diamonds.
Category

21st Century and Contemporary French Contemporary More Necklaces

Materials

Diamond, Platinum

An Exceptional Pear Shape Diamond Ring
Located in New York, NY
the color is E and the clarity is SI1; enhanced with 42 diamonds (approx 0,40 carat total)
Category

21st Century and Contemporary French Bridal Rings

Materials

Diamond, 18k Gold

Cartier Tri-Color Diamond Ring
By Cartier
Located in London, GB
diamond of approx 0.50 carat in weight. Hallmarked: Cartier 750, 1987 42 23 CO Size UK E, EU size 42
Category

20th Century French Contemporary Wedding Rings

Materials

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

18 Karat Cartier Love Diamond Bracelet White Gold
By Cartier
Located in Boca Raton, FL
Cartier Love Bracelet in 18K White Gold. (4) Round Brilliant Cut Diamonds weighing .42 carat total
Category

2010s Bangles

Materials

Diamond, 18k Gold, White Gold

Unique Engagement Ring 18kwg Christopher Designs Hexagon Halo Diamond Ring
By Christopher Designs
Located in Rochester, NY
Hexagonal D/SI2 Diamond Center surrounded by 42 Round Brilliant G/SI1 Diamonds (0.23 carat total weight
Category

Early 2000s Engagement Rings

Materials

Diamond, 18k Gold

Frederic Sage Green and Pink Tourmaline Diamond Gold Ring
By Frederic Sage
Located in New York, NY
TOURMALINE 1.1 Carats TWO PINK TOURMALINES 0.44 Carats Total Diamond Count 42 Total Diamond Weight 0.47
Category

2010s American Contemporary Cocktail Rings

Materials

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

Fancy Yellow and White Diamond Pear Shaped Pendant Set in 18 Karat Gold
Located in New Orleans, LA
White Diamonds = .42 carats total weight
Category

2010s Unknown Pendant Necklaces

Materials

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

Antique Diamond Pendant Brooch with Old Mine Rose Cut, Approx 3.60 Ctw
Located in Danvers, MA
approximately .42 carats. The smaller diamonds range in size from approximately 1.1 mm (the entire inner border
Category

Antique 19th Century British Early Victorian Pendant Necklaces

Materials

Diamond, 15k Gold, Silver

Four strand draping diamond necklace and dangling earring set in white gold.
Located in Surfside, FL
Four strand draping diamond necklace and dangling earring set in 18k white gold. Over 42 carats in
Category

20th Century More Necklaces

Materials

White Gold

Mellerio Necklace, Bracelet and Earrings Jewelry Set, 1970s
By Mellerio dits Meller
Located in Paris, IDF
Ear-pendants : Length : 70 mm - Width : 26 mm - Weight : 42 grams. Diamond's weight : 4.76 carats In
Category

Vintage 1970s French Modern Drop Necklaces

Materials

White Diamond, Lapis Lazuli, 18k Gold

Saint Michael Sapphire Brooch Pendant
Located in DALLAS, TX
18k yellow gold 42= .42 carat total weight diamond, 8= .64 carat total weight multi-colored
Category

21st Century and Contemporary North American Pendant Necklaces

Materials

Diamond, Sapphire, Quartz, 18k Gold, Yellow Gold

10 Karat Yellow Gold Men s Diamond Ring .42 Carat
Located in Gainesville, FL
You are viewing a Men's channel set Diamond Ring. This band is crafted from 10k yellow gold
Category

21st Century and Contemporary Unknown Contemporary Band Rings

Materials

Diamond, 10k Gold, Yellow Gold

Vintage Tiffany Co. Platinum, Diamond Tulip Pendant with .42 Carat of Diamonds
By Tiffany Co.
Located in New Orleans, LA
Vintage Diamond Tulip Pendant by Tiffany & Co, The Pendant has 42 Round Brilliant Cut Diamonds that
Category

21st Century and Contemporary Unknown Artist Pendant Necklaces

Materials

Diamond, Platinum

10.37 Carat Genuine White Diamond 14 Karat White Gold Tennis Bracelet
Located in Great Neck, NY
Diamond Details: Shape: Round Brilliant 42 Pcs Carat Weight: 10.37 carats Diamond Color: I Diamond Clarity
Category

2010s Indian Contemporary Tennis Bracelets

Materials

White Diamond, 14k Gold, White Gold

0.42CTW Diamond 14K White Gold Wedding Band
Located in Columbia, MO
14 karat white gold .42 carat combined total diamond weight Size 6.25 MSRP $1,200! Comes in a
Category

21st Century and Contemporary Band Rings

Materials

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

Saphire and Diamond Eternity Band
By Shreve, Crump Low
Located in Chestnut Hill, MA
Platinum sapphire and diamond eternity band consisting of .42 carats of diamonds alternating with
Category

21st Century and Contemporary Unknown Contemporary Fashion Rings

Materials

Blue Sapphire, Diamond, Sapphire, White Diamond, Platinum

Platinum Alex Sepkus Canary Diamond Hand Hammered and Engraved Narrow Band
By Alex Sepkus
Located in Boca Raton, FL
Cut Yellow-Orange Canary Diamonds weighing .42 carat total weight and VS in clarity are expertly hand
Category

2010s Band Rings

Materials

Diamond, Yellow Diamond, Platinum

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42 Carats Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of 42 carats diamonds. All of the items for sale were constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Find a collection of 227 vintage versions or 440 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 19th Century to those produced as recently as the 21st Century. Pieces in our collection of 42 carats diamonds made by Contemporary jewelers — as well as those associated with Modern — are very popular. Versions of these items have been a part of the life’s work for many jewelers, but those produced by LB Exclusive, Alberto and Tiffany Co. are consistently popular. Lovers of these pieces agree that it’s a versatile accessory, but a selection from our variety of 513 Diamond versions can add an especially stylish touch. Today, if you’re looking for round cut 42 carats diamonds and are unable to find the perfect match, our selection also includes oval cut and cushion cut alternatives. If you’re browsing the variety of 42 carats diamonds for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are 42 Carats Diamonds?

On average, 42 carats diamonds at 1stDibs sell for $5,058, while they’re typically $440 on the low end and $1,995,000 for the highest priced versions of this item.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Questions About 42 Carats Diamonds
  • 1stDibs ExpertApril 5, 2022
    Yes, there are three-carat diamonds, and you can find them from a number of different jewelers and other retailers. Find an assortment of diamond jewelry from the world’s top sellers on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    A 24-carat diamond is a precious diamond gemstone that weighs 24 carats. One carat weighs 200 milligrams, meaning a 24-carat diamond weighs roughly 4.8 grams. That equates to roughly 0.17 ounces. On 1stDibs, shop a variety of diamond jewelry.
  • 1stDibs ExpertApril 5, 2022
    A nine-carat diamond is considered rare and holds a premium price. Because of their rarity and size, nine-carat diamonds are a coveted choice for engagement rings. One of the most famous nine-carat diamond rings belongs to actress Kate Hudson, who has a nine-carat emerald cut diamond complemented with tapered baguettes on a platinum band. Shop a selection of diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 27, 2024
    Whether a 1.5-carat diamond is too big depends on the type of jewelry in question and your personal preferences. A single stud earring that is 1.5 carats is rather large and would cover the entire earlobe. In terms of rings, a 1.5-carat diamond is larger than average. Find a variety of diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 13, 2023
    Yes, a two-carat diamond is generally rarer than a smaller diamond, especially high-quality two-carat diamonds. When larger diamonds are found in nature, they usually have flaws. And prices per carat don’t increase as weight increases. A three-carat gem can be less valuable than a one-carat stone, for example, if all of the other attributes are of lesser quality in the larger diamond. Shop an assortment of diamond jewelry from some of the world’s top jewelers on 1stDibs.
  • 1stDibs ExpertNovember 6, 2023
    There is no hard-and-fast rule for how many carats a diamond necklace should be. On average, solitaire diamond necklaces range from 0.5 to 1 carat, but you can find pieces with larger and smaller stones. Tennis chains that feature continuous diamonds set into links usually have much higher total carat weights. For example, one might feature 60 individual diamonds, each 0.20 carats in size, for a total carat weight of 12.0 carats. Shop a wide range of diamond necklaces on 1stDibs.
  • 1stDibs ExpertSeptember 28, 2021
    The minimum value of a 25-carat diamond ranges from $300 to $1,400. The prices change subject to the fluctuation of market factors. The value is defined based on the 4Cs — color, clarity, cut and carat weight. Shop antique, vintage and new diamond jewelry on 1stDibs.
  • 1stDibs ExpertSeptember 28, 2021
    An 8-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On an average an 8-carat diamond could cost you between $17,500 to $90,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 8-carat diamond jewelry from different periods and styles to choose from.
  • 1stDibs ExpertSeptember 28, 2021
    A 4-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 4-carat diamond could cost you between $8,400 to $71,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 4-carat diamond jewelry.
  • 1stDibs ExpertSeptember 28, 2021
    A 6-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 6-carat diamond could cost you between $15,000 to $80,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 6-carat diamond jewelry.
  • 1stDibs ExpertSeptember 28, 2021
    A 5-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 5-carat diamond could cost you between $9,600 to $67,500. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 5-carat diamond jewelry.
  • 1stDibs ExpertFebruary 27, 2024
    In terms of dimensions, how large a 3-carat diamond is varies. The shape of the diamond will determine its length and width. Weighing 600 milligrams, diamonds that are 3 carats are generally considered to be large stones. On 1stDibs, shop a large collection of diamond jewelry from some of the world's top dealers.
  • 1stDibs ExpertFebruary 22, 2021
    The size of a 12 carat diamond is dependent on diamond cut. A 12 carat round diamond is roughly 15 mm in size.
  • 1stDibs ExpertAugust 17, 2021
    A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.
  • 1stDibs ExpertSeptember 28, 2021
    A 9-carat diamond’s worth varies depending on the 4Cs of diamond quality — color, cut, clarity and carat. On average, a 9-carat diamond could cost you between $19,000 to $1,000,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 9-carat diamond jewelry from different periods and styles to choose from.
  • 1stDibs ExpertSeptember 28, 2021
    A 3-carat diamond’s worth varies depending on the 4Cs of diamond quality – color, cut, clarity and carat. On average, a 3-carat diamond could cost you between $7,200 to $51,000. It is also likely that the price range per carat will be even broader. On 1stDibs, you can find a variety of 3-carat diamond jewelry today.
  • 1stDibs ExpertFebruary 22, 2021
    Depending on the quality, age, and designer, a 1-carat diamond can cost between $1,300 and $16,500.
  • 1stDibs ExpertAugust 17, 2021
    A 7-carat diamond can cost anywhere between $12,000 and $185,000 depending on the quality of the stone. The fewer imperfections, the more expensive the diamond. Some 7-carat diamonds can cost more than $400,000.
  • 1stDibs ExpertAugust 24, 2021
    A 2 carat oval diamond is approximately 10.23mm × 6.82mm × 4.16mm in size. These diamonds usually have an approximate face-up area of 57.21 mm². Find a variety of diamonds on 1stDibs.
  • 1stDibs ExpertNovember 2, 2023
    There is no rule for how many carats a diamond wedding ring should be. You're free to choose a ring with a carat weight that appeals to you and fits your budget. The average carat weight for diamond wedding rings is 1 to 1.9 carats. Shop an assortment of diamond wedding rings on 1stDibs.