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18k Gold 26 Carats Squared Ruby Diamond Teardrop Vintage Dangle Earrings
Located in เกาะสมุย, TH
treatment, total est. 26 carats Diamonds: Natural, brilliant, baguette cut, VS1-2, G-H, 2.20 carats - Free
Category

20th Century Thai Dangle Earrings

Materials

Diamond, Ruby, 18k Gold

26 Carat Sapphire Diamond Gold Necklace
Located in Beverly Hills, CA
The elegant 18k white gold necklace has been designed with 27 oval sapphires weighing 26 carats
Category

21st Century and Contemporary Unknown Modern More Necklaces

Materials

Blue Sapphire, Diamond, 18k Gold

26 Carat Royal Blue Sapphire and Diamond White Gold Earrings
Located in New York, NY
over thirteen carats each suspended from a floral design clip set with thirty-eight round brilliant-cut
Category

21st Century and Contemporary American Dangle Earrings

Materials

White Diamond, Sapphire, 18k Gold, White Gold

Vintage Diamond Engagement Ring .26ct D-F/SI1 Ideal Lovebird 18k Antique Deco
Located in Dearborn, MI
Shank 100% Natural Diamond .26 Carat Diamond Weight Solid 18K White Gold Circa 1930’s-1940's Art
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, 18k Gold, White Gold

26+ Carat Cushion-Cut Tanzanite Ring with 4 Carat Diamonds, 18 Karat White Gold
Located in New York, NY
4.0 carats of shimmering white diamonds, this brilliant cushion-cut gem exhibits the rich violetish
Category

20th Century Cocktail Rings

Materials

Diamond, Tanzanite, 18k Gold

Art Deco 26 Carat Star Ruby Diamond Platinum Ring
Located in Miami, FL
Platinum Deco ring featuring a 26ct star ruby cabochon accented by 2 trapezoid cut diamonds
Category

Vintage 1920s American Art Deco Dome Rings

Materials

Diamond, White Diamond, Ruby, Platinum

Stunning 26 Carats Emerald 2.75 Carats Diamond F VS Sparkle 18K Earring
By Malpani Jewels
Located in Hung Hom, HK
luxury and craftsmanship. Featuring a magnificent 26 carats of vibrant, natural emeralds, these earrings
Category

2010s Japanese Art Deco Chandelier Earrings

Materials

Diamond, Emerald, 18k Gold

Diamond and White Gold Illusion Pendant Necklace, .26 Carats Total
By Sarosi By Timeless Gems
Located in Los Angeles, CA
celebrate any special occasion! Diamonds, .26 carats total
Category

21st Century and Contemporary American Artisan Pendant Necklaces

Materials

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

26 Carat Marquise and Round Cut Diamond Wreath Cluster Necklace
Located in New York, NY
diamond cluster wreath necklace is mounted with 376 of mixed cuts diamonds. Diamonds altogether weighing
Category

20th Century Unknown Modern Drop Necklaces

Materials

Diamond

26 Carat Sapphire Gorgeous Earring 18K "No Diamond Collection
By Malpani Jewels
Located in Hung Hom, HK
A huge pair of 26 carat sapphire are set along with multi color sapphire rounds. A total of 6.15
Category

2010s Hong Kong Art Nouveau Chandelier Earrings

Materials

Sapphire, 18k Gold

25 Pointer Each, 26 Carat Single Line Eternity 18 Kt Gold Diamond Bangle, Pair
Located in New York, NY
Single line 25 pointer each , 25.26 Ct Contemporary 18 Karat White Gold & Diamond Eternity
Category

2010s Bangles

Materials

Diamond, 18k Gold, Gold

.26 Carat Natural Diamonds Band Ring 14 Karat "I Love You"
Located in New York, NY
Love Statement. .26ct. Natural Diamonds band Round, Brilliant Cuts H color Vs-2 clarity Bead
Category

2010s American Band Rings

Materials

Diamond, 14k Gold, White Gold

.26 Carat Round Brilliant Diamond Earrings, 14 Karat Gold Pierced Triangle Hoops
Located in Greensboro, NC
Metal Content: Guaranteed 14k Gold as stamped Stone Information: Natural Diamonds Clarity: SI1
Category

21st Century and Contemporary Unknown Hoop Earrings

Materials

Diamond, 14k Gold, Yellow Gold

.26 Carat Round Brilliant Diamond Earrings, 14 Karat Gold Pierced Triangle Hoops
Located in Greensboro, NC
Metal Content: Guaranteed 14k Gold as stamped Stone Information: Natural Diamonds Clarity: SI1
Category

21st Century and Contemporary Unknown Hoop Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Antique Dutch gold brooch-pendant with 26 diamonds 1.30 carat, mid-19th century.
Located in Chorzów, PL
An antique brooch-pendant from the mid-19th century, set with 26 diamonds total 1,30ct in old Dutch
Category

Antique Mid-19th Century Dutch Victorian Pendant Necklaces

Materials

Diamond, Gold, 15k Gold

South Seas Pearl and Diamond Stud Earrings, 18k Gold Pierced Round Cut .26 Carat
Located in Greensboro, NC
Diamonds - Clarity: VS1 - VS2 Color: G - H Cut: Round Total Carats: 0.26ctw Fastening Type: Omega
Category

20th Century Unknown Stud Earrings

Materials

Diamond, Pearl, 18k Gold, White Gold

Semi-Mount Halo Ring 14 Karat Gold Engagement for Center with Diamonds .26 Carat
Located in Greensboro, NC
Stone Information: Natural Diamond Accents Clarity: SI1 Color: G Cut: Round Brilliant Total Carats
Category

21st Century and Contemporary Unknown Engagement Rings

Materials

Diamond, 14k Gold, Yellow Gold

0.96 Carat Natural Cognac Color Diamond and 0.38 Carat Diamond Ring
By Alberto
Located in GREAT NECK, NY
Details: 26 Round Diamonds at 0.38 Carats - Clarity: SI / Color: H-I Fine one-of-a kind craftsmanship
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, 14k Gold, Rose Gold

2.04 Carat GIA Cert Diamond Platinum Ring
Located in New York, NY
triliants on either side weighing .36 carat and .26 carat each*. Please note that diamonds were unset and
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Platinum

Contemporary .80 Carat Diamond Oval Hoop Earrings
Located in Santa Barbara, CA
Metal: 10k White Gold Diamonds: 26 Total Carat Weight: 0.80 carats total Dimensions: 27mm L x 5mm W x
Category

21st Century and Contemporary Contemporary Hoop Earrings

Materials

Diamond, Gold, 10k Gold, White Gold

Modern 1.50 Carat Diamond White Gold Ring
Located in Beverly Hills, CA
Stone: 26 diamonds Weight: 1.5 carats approximately Cut: Marquise and baguette Color: G-H Clarity
Category

20th Century Modern Band Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Ladies 43.48 Carat Heart Brilliant All Solitaires Yellow Diamond Lariat Necklace
Located in Tustin, CA
: Measures 5.66 x 6.37 x 3.50 mm and has a clarity grade of SI1 and weighs 1.00 carat. Diamond number 26
Category

21st Century and Contemporary American Artisan Drop Necklaces

Materials

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

Art Deco Platinum 2 Carat Diamond Cocktail Ring
Located in Montgomery, AL
Diamond Weight: 0.5 Carat 6 - 3.5mm Round Cut Diamonds; Estimated Combined Diamond Weight: 0.9 Carat 26
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

Diamond, Platinum

18 Carat Yellow Gold Diamond-Set Parrot Brooch
Located in London, GB
in our London Workshop. It has a ruby eye and diamonds totalling .26 carats of G colour and VS
Category

2010s British Modern Brooches

Materials

Diamond, Ruby, Yellow Gold

5.20 Carat Chrome Tourmaline and Diamond 18 Karat Yellow Gold Earrings
Located in Scottsdale, AZ
weight Diamonds: 26 round brilliant cut = 0.65 carat weight Color: G-H Clarity: SI1 Fastenings: friction
Category

21st Century and Contemporary More Earrings

Materials

Diamond, Tourmaline, 18k Gold, Yellow Gold

2.20 Carat Cornflower Blue Sapphire, Diamond Platinum 3-Stone Engagement Ring
By Sarosi By Timeless Gems
Located in Los Angeles, CA
perfect for everyday wear! Blue sapphire, 2.20 carats, GIA Report #5201169828 Diamonds, .26 carats total
Category

21st Century and Contemporary American Artisan Engagement Rings

Materials

Diamond, Blue Sapphire, Sapphire, Platinum

IGL Certified 1.20 Carat Padpardscha Sapphire and Diamonds Ring
Located in Trumbull, CT
0.42 Carat and pink diamonds O.26 Carat set in 14 Karat two tone gold.The ring is one of a kind
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Sapphire, 14k Gold

2.85 Carat GIA Certified Yellow Cushion Diamond in Art Deco Style Ring
By Gad Co.
Located in Miami, FL
Diamond Details: ✔ 2 Emerald-cut diamonds, 1.15 carats total (approx.) ✔ 26 Round cut diamonds, 0.80
Category

2010s American Art Deco Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold, White Gold

10 Karat Gold Chain Necklace with Diamonds H-SI3 0.70 Carat in Total Weight
By Gregory Mikaelian Sons, Inc.
Located in Los Angeles, CA
total weight. Specifications: main stone: DIAMONDS diamonds: 26 PC carat total weight: 0.70
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 10k Gold

1950s Striking 22 Carat Pink Tourmaline and Diamond Leaf Ring
Located in Carmel-by-the-Sea, CA
blessedly few blemishes for such a large stone. 26 diamonds weigh .60 carats.
Category

Vintage 1950s Cocktail Rings

Materials

Tourmaline, Platinum

14 Karat Yellow Gold Almandine Garnet and Diamond Ring
Located in Towson, MD
14 karat Yellow Gold 3.03 carat Almandine Garnet with .26 total carat weight Diamonds on each side
Category

1990s Fashion Rings

Materials

Diamond, Garnet, 14k Gold, Yellow Gold

Tiffany Co. Platinum Forever Full Circle Diamond Eternity Band Ring 0.78cts
By Tiffany Co.
Located in New York, NY
gallery and 26 round brilliant cut diamonds set in shared prongs weighing 0.78 carats total weight with an
Category

21st Century and Contemporary American Modern Wedding Rings

Materials

Diamond, White Diamond, Platinum

Alexander Beverly Hills 26.46ct "Avg 1.01ct" Diamond Tennis Bracelet 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
Exquisite and timeless diamonds tennis bracelet, by Alexander Beverly Hills. 26 round brilliant
Category

21st Century and Contemporary American Contemporary Tennis Bracelets

Materials

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

Wedding Dangle Earrings, Diamonds White Gold, Oval White Topaz, Leverback Clasp
By Five Star Jewelry
Located in Austin, TX
Diamond Weight: .26 Carat Gemstone: White Topaz Gemstone Shape: Oval Gemstone Number: 2 Average Gemstone
Category

21st Century and Contemporary American Contemporary Dangle Earrings

Materials

Diamond, Topaz, 14k Gold, White Gold

Faye Kim 18 Karat Gold Round Brilliant Cut Diamond Solitaire Necklace
By Faye Kim
Located in Darien, CT
. Total length 16"-18" Adjustable Diamond .26 carats twt F/G Color, VS Claraity All of Faye Kim's pieces
Category

2010s American Contemporary Choker Necklaces

Materials

Diamond, Gold, 18k Gold

Truly Exceptional Fancy Yellow Diamond Bracelet
Located in San Francisco, CA
a total diamond weight of well over 26 carats of diamonds. The total weight of this impressive piece
Category

21st Century and Contemporary Tennis Bracelets

Materials

Diamond, Yellow Diamond, Platinum

Turquoise Diamond gold Ring
Located in Miami, FL
Brilliant Cut Diamonds Weighing .26 Carats. Ring Size: 6 Weight: 6.68 grams This Ring is Accompanied
Category

21st Century and Contemporary American More Rings

Materials

Diamond, Turquoise, 18k Gold

Sapphire Diamond Gold Ring
Located in Litchfield, CT
blue sapphires flawlessly arranged with .26 carats of white diamonds (G-H color, SI1 clarity) it is
Category

1990s Art Deco Cocktail Rings

Materials

Blue Sapphire, White Diamond, 18k Gold

Alexander Beverly Hills 2.42ct Emerald with Diamond Halo Ring 18k White Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
. 3.32 carats total gemstone weight. 2.42 carat cushion emerald, approximately F1/F2. 26 round brilliant
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

Alexander Beverly Hills G VS1 1.30ct Princess Cut Diamond Ring 18k White Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
, 1.30ct princess cut diamond. G color grade & VS1 clarity grade. 26 round brilliant diamonds, 0.67 carats
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

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

Alexander 2.70ct Fancy Intense Yellow VS2 Cushion Diamond with Halo Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
and VS2 clarity diamond, EGL graded. Complimented by 26 round brilliant diamonds, 1.07 carats
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Mother-of-Pearl Diamond Butterfly Brooch
Located in Carmel-by-the-Sea, CA
carats in total, while the antennae are tipped with a pair of marquis diamonds that weigh .26 carats in
Category

21st Century and Contemporary Brooches

Materials

Diamond, Pearl

Art Deco Diamond Drop Earrings
Located in Bethesda, MD
diamonds=.90 carats ♦ 2 Round diamonds=.50 carats ♦ 26 baguette diamonds=1.35 carats ♦ 1 ¾ inches High ♦
Category

Vintage 1920s American Art Deco Drop Earrings

Materials

Diamond, Platinum

Moonstone and Diamond Platinum Pendant Necklace
Located in Carmel-by-the-Sea, CA
as "Blue-Flash" and weighs between 26 & 29 carats. The graduated diamonds weigh 2.1 carats in
Category

20th Century Drop Necklaces

Materials

Moonstone, Diamond, Platinum

Georgian 1830 Diamond Rivière Necklace
Located in Amsterdam, NL
A 14 or 15 carat yellow gold Gergian necklace with 48 old mine cut diamonds (app. 26 carat in
Category

Antique 1830s Link Necklaces

Materials

Diamond, 14k Gold, Silver

Diamond Concave Hammered Wide Band
Located in McLeansville, NC
side weighing approximately .26 total carats. Stones: - diamonds, 26 stones - full cut round
Category

Vintage 1980s Band Rings

Materials

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

Art Deco Diamond Engagement Ring
Located in Litchfield, CT
carat diamond (H-I color, VS2 clarity) accented by .26 carats of additional single-cut diamonds. The
Category

20th Century American Art Deco Engagement Rings

Materials

Diamond, Platinum

Oscar Heyman Sapphire Diamond Gold Earrings
By Oscar Heyman
Located in Bethesda, MD
earrings feature 26 brilliant diamonds weighing 1.45 carats and 20 rich blue sapphire weighing 1.94 carats
Category

Vintage 1980s American Hoop Earrings

Materials

Diamond, Sapphire, 18k Gold

Crivelli Diamond Pavé Dangle Earrings
By Crivelli
Located in New York, NY
comfortable wear. The estimated weight of the gold is approximately 15.1 grams. 26 pave diamonds
Category

21st Century and Contemporary Italian Contemporary Dangle Earrings

Materials

Diamond, 18k Gold

14 Karat White Gold Diamond Cross Earrings
Located in Dallas, TX
14K White Gold Diamond Cross Earrings - . Dainty white gold earrings with six diamonds equaling .26
Category

21st Century and Contemporary Unknown Wrist Watches

Materials

Diamond, White Gold

ALETTO BROS Diamond Yellow Gold Platinum Earrings
By Aletto Brothers
Located in Carmel-by-the-Sea, CA
platinum bezels around twenty six (26) diamonds weighing 2.12 carats.
Category

20th Century Clip-on Earrings

Materials

Diamond, 18k Gold, Platinum

Art Deco Sugarloaf Emerald and Diamonds Ring
Located in London, GB
: Sugarloaf • Total carat weight: 3.15ct approximately • Dimensions: 8.4x7.5x6.8mm Others: 26 single cut
Category

Vintage 1910s Unknown Art Deco Dome Rings

Materials

Diamond, Emerald

Valentin Magro Yellow Gold Diamond Scalloped Shell Earrings
By Valentin Magro
Located in New York, NY
burnish set along the surfaces sparkle like stars. The 26 diamonds total 0.54 carats. Clip-backs link
Category

2010s American Clip-on Earrings

Materials

Diamond, 18k Gold

18K White Gold Baguette and Round Diamond Ring
Located in Old Tappan, NJ
(sizeable) * 26 round diamonds totaling 0.62 carats and 18 baguette diamonds totaling 0.75 carats * Diamonds
Category

2010s Unknown Contemporary Bridal Rings

Materials

Diamond, 18k Gold, White Gold

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
- approximately 1.50 carats - diamonds, 26 stones - full cut round - 1.1 mm - approximately .15 total carats
Category

Early 2000s Fashion Rings

Materials

Beryl, Diamond, Gold, 14k Gold, Yellow Gold

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
- approximately 1.50 carats - diamonds, 26 stones - full cut round - 1.1 mm - approximately .15 total carats
Category

Early 2000s Fashion Rings

Materials

Beryl, Diamond, Gold, 14k Gold, Yellow Gold

LeVian 14 Karat Yellow Gold Heliodor Diamond Ring
By Suzy Levian
Located in McLeansville, NC
- approximately 1.50 carats - diamonds, 26 stones - full cut round - 1.1 mm - approximately .15 total carats
Category

Early 2000s Fashion Rings

Materials

Diamond, Beryl, Gold, 14k Gold, Yellow Gold

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26 Carat Diamond For Sale on 1stDibs

Find the exact 26 carat diamond you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and White Gold. You can easily find a 309 antique edition and 802 modern creations to choose from as well. Making the right choice when shopping for a 26 carat diamond may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Finding an appealing 26 carat diamond — no matter the origin — is easy, but Tiffany Co., LB Exclusive and Alberto each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and emerald cut cut versions available here, too. When shopping for a 26 carat diamond, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 26 Carat Diamond?

The price for a 26 carat diamond starts at $238 and tops out at $1,650,000 with these rings, on average, selling for $5,890.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

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 26 Carat Diamond
  • 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
    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 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 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 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 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 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 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 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.
  • 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.