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22 Fancy Diamond Collection 18 Karat White Gold Earrings 6.15 grams
Located in New York, NY
6.15 grams studded 22 Fancy Shape(Marquise and Pear) Diamonds total weight 4.96 carats 16 round
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, White Gold

Antique Style Blue Enamel Diamond Necklace 14 Karat Yellow Gold
Located in Barnsley, GB
Antique Style Blue Enamel Diamond Necklace 14 Karat Yellow Gold 1.72 Carat and with 16 Diamonds
Category

21st Century and Contemporary Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold, Enamel

Jahan Geneve Diamond Ladies Watch 18 Karat Yellow Gold
By Jahan
Located in Geneva, CH
which is fully paved with the round-cut diamonds also is surrounded by 16 diamonds 0.1 carat each one
Category

21st Century and Contemporary Swiss Art Deco Wrist Watches

Materials

Diamond, 18k Gold, Yellow Gold

Walters Faith 18K Rose Gold All Diamond Jumbo Chain Link Bracelet
By Walters Faith
Located in New York, NY
Walters Faith's Saxon Collection 18K Rose Gold All Diamond Jumbo Chain Link Bracelet. 16 Diamond
Category

2010s Contemporary Link Bracelets

Materials

Diamond, 18k Gold, Rose Gold

Jennifer Rivera s Handmade Minimo Four Diamond Bar Necklace with Ruby
Located in Boca Raton, FL
inches Diamond Total Carat Weight, 0.50 carat Ruby Total Carat Weight, 0.15 carat Weight, 2.4 grams
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, White Gold

Platinum Antique Edwardian Untreated 0.9 CT Sapphire and Diamond Engagement Ring
Located in Rottedam, NL
central sapphire has a beautiful blue shine and weights circa 0.9 carat. The surrounding 16 diamonds have
Category

Early 20th Century German Edwardian Engagement Rings

Materials

Diamond, Sapphire, Platinum

Sapphire, Diamond and Emerald, Set in a Platinum Handcrafted Ring
Located in Nashville, TN
Diamonds, approximately .16 carat each for 2.57 combined total weight.(scale weight). The make is Excellent
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Emerald, Blue Sapphire, Platinum

VALENTE Silky Diamond Bracelet
By Valente
Located in Scottsdale, AZ
exquisitely crafted by Valente is set with 16 carats of great quality diamonds. The bracelet closes with an
Category

Italian Link Bracelets

1970s 18 Karat Gold VS Diamond Lapis Lazuli Necklace Pendant
Located in Shaker Heights, OH
diamond, each measuring .02 carats each for a total of .16 Carats (16 points). The diamonds are mounted in
Category

Vintage 1960s American Retro Pendant Necklaces

Materials

White Diamond, Lapis Lazuli, 18k Gold

Ansuini Classic Sapphire and Diamond 18 Karat White Gold Engagement Ring
By Ansuini
Located in Roma, IT
Classical engagement ring handmade in 18k white gold with 1 sapphire 3 carats and 16 diamonds 1.14
Category

2010s Mauritanian Retro Engagement Rings

Materials

White Diamond, Blue Sapphire, 18k Gold

Art Deco Platinum and Diamond Double Clip Brooch and Pendant Combination
Located in Warrington, PA
with round, marquise cut, and baguette cut diamonds with an approximate weight of 16 carats. The
Category

20th Century Unknown Art Deco Brooches

Materials

Diamond, Platinum

Ansuini Aquamarine Carrè Cut Ring, 5.76 Carat, Handmade in 18 Karat Gold
By Ansuini
Located in Roma, IT
5.76 carats has a beautiful and intense blue, underneath it there are set 16 diamonds 0.11 carats which
Category

2010s Italian Contemporary Cocktail Rings

Materials

Aquamarine, 18k Gold

Diamond and Large Lapis 18K Gold Ring. Yellow/White Gold. Size 7
Located in Beverly Hills, CA
Diamond and Lapis Band Ring. 18k Yellow/White Gold 16 Diamonds total carat weight 0.16 carat G/H
Category

Early 2000s American Band Rings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

18K White Gold Ballerina Cocktail Ring w/London Blue Topaz Baguette Diamonds
By Doves by Doron Paloma
Located in Great Neck, NY
beings. Item ref. LB350LBT. Stone Information: - 6 baguette diamonds totaling 0.63 carats. - 16 round
Category

21st Century and Contemporary American Retro Cocktail Rings

Materials

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

Brizo Rose Cut Diamond Ribbon Bracelet 18 Karat Gold
By JeweLyrie
Located in Paterson, NJ
carat. • 16 full cut diamonds, 1.25mm, approx. .16 carat. • E,F, color, VS clarity. • 1/2″ wide with
Category

2010s American Modern Chain Bracelets

Materials

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

Oval Cut Sapphire and Diamond Stud Earrings in 14 Karat White Gold
Located in New Orleans, LA
touch for a fancy evening out! Sapphires (2) = 1.54 carats total weight Diamonds (16) = 1.2 carats
Category

2010s Unknown Contemporary Stud Earrings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Platinum and 18 Karat Yellow Gold, 2.42 CT Emerald and Diamond Ring
By Peter Atman
Located in New York, NY
beautiful Colombian Emerald of 2.42 carats and 16 fine quality Diamonds 2.42 carats. We design and
Category

2010s American Contemporary Cluster Rings

Materials

Diamond, Emerald, Yellow Gold, Platinum

Enrico Serafini 1960s 18 Karat Gold Diamond and Natural Sapphire Italian Brooch
By Enrico Serafini
Located in Torino, IT
Serafini 750 Estimated total Sapphire weight 16 carats and Diamond weight 3 carats In case of return
Category

Vintage 1960s Italian Brooches

Materials

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

Pear Deep Blue Colored Tanzanite, Art Nouveau Style Ring with Pave Set Diamonds
Located in Aliso Viejo, CA
measures 5 x 7.50 x 2.50 and weighs approximately .65 carat. The (16) diamonds around 1.50 millimeters in
Category

21st Century and Contemporary Unknown Art Nouveau Cocktail Rings

Materials

Tanzanite, Diamond, 14k Gold

GILIN 18K White Gold Diamond with Kunzite
By GILIN
Located in Central, HK
colors, kunzite is typical of the pink to purple variety. The Centre Kunzite weighs 15.58 Carat, with 16
Category

2010s Hong Kong Modern Fashion Rings

Materials

18k Gold, White Gold

Diamond with Round Wave-Design Pendant White Gold Necklace
Located in Surfside, FL
with 1.86 carats in diamonds. Chain in 14k white gold with 0.50 carats in diamonds. 16 inch chain
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Gold

Isabelle Langlois Drop Earrings White Gold Diamond
Located in PARIS, FR
Earrings signed Isabelle Langlois White gold 750 thousandths (18 carats). with 16 brilliant cut
Category

20th Century French Drop Earrings

Materials

White Gold

Chopard Oblong Boutique Edition Oval Classique Pave Diamond Leather Ladies Watch
By Chopard
Located in New York, NY
) 16 Diamonds on the buckle (.34 Carats) White Mother of Pearl Dial Roman Numeral Hour Markers Case
Category

Early 2000s Swiss Wrist Watches

Materials

18k Gold

Chopard Chopardissimo 18 Karat Rose Gold and Diamond Earrings 83/7031-5002
By Chopard
Located in New York, NY
Diamonds on the Earrings (.16 Carats) 1 Floating Diamond Pendant Weight: 11.70Ggr Retails for $7,110
Category

2010s Swiss Hoop Earrings

Materials

Rose Gold

Chopard Chopardissimo 18 Karat White Gold and Diamond Earrings 83/7031-1002
By Chopard
Located in New York, NY
Diamonds on the Earrings (.16 Carats) 1 Floating Diamond Pendant Weight: 11.70Ggr Retails for $7,250
Category

2010s Swiss Hoop Earrings

Materials

White Gold

Burle Marx 18 Karat Gold Rubellite and Diamond Cufflinks with Tuxedo Studs
By Burle Marx
Located in Woodway, TX
matched rubellites total 8.50 carats and they are very fine. There are 16 diamonds totaling 1.67 carats
Category

Vintage 1980s Cufflinks

Materials

Rubelite, 18k Gold

Córdoba Necklace
By Sara Shala Design
Located in New York, NY
Chain: 16 inches Total Diamond Carat Weight: .57
Category

2010s American Artist Multi-Strand Necklaces

Materials

Diamond, Quartz, 14k Gold

South Seas Pearl Sapphire 18KW Earrings
Located in Solvang, CA
have 46 full cut accent diamonds at .16 carat total weight with VS1-SI1 clarity and G-H color. The
Category

Early 2000s Stud Earrings

Materials

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

Large Circular Sapphire Cabochon Yellow Gold Ring
Located in New York, NY
This bold and large 1980s 14 karat Yellow Gold dome ring features 16 diamonds totaling 0.50 carats
Category

Vintage 1980s American Contemporary Cocktail Rings

Materials

Sapphire, Yellow Gold

Hammerman Brothers Yellow Gold Faceted Blue Topaz Pendant
By Hammerman Brothers
Located in New York, NY
bezel wrapped blue topaz. 8 blue topaz are 15.27 carats, 16 diamonds for 0.11 carats, and chain length
Category

2010s American Pendant Necklaces

Materials

Topaz, 18k Gold, Yellow Gold

Blue Topaz Gold Dome Ring
Located in Berlin, DE
30 carats and 16 swiss-cut diamonds weighing total ca. 0,08 ct. In 9 K yellow gold. Marked inside
Category

21st Century and Contemporary German Dome Rings

Materials

Topaz, 9k Gold, Yellow Gold

Oval Jade Earrings
Located in Solvang, CA
round diamonds at .16 carat total weight, G-H in color. [KIMH 532] Dimensions 19.6mm H overall; jade
Category

Early 2000s Stud Earrings

Materials

Jade, 14k Gold, Yellow Gold

Around the World Geode Silver Hoop Earrings
By Nina Wynn
Located in Denver, CO
Silver & 18K Yellow Gold Stone carat: 16 Diamond carat: 0.25 Size: 28mm Stone size: 10-12mm About the
Category

21st Century and Contemporary Vietnamese Contemporary Hoop Earrings

Belle Époque Ruby Sapphire and Diamonds 4 Carats Barrete Brooch
Located in Viana do Castelo, PT
catch everyones eye. This wonderful brooch is adorned with 16 brilliant cut diamonds (4 carats), 1
Category

Antique Late 19th Century Portuguese Belle Époque Pendant Necklaces

Materials

Diamond, Ruby, Sapphire, Gold, 18k Gold, Yellow Gold

Decadent Jewels 16 Carat Black Diamond Gold Bracelet
By Decadent Jewels
Located in Sydney, AU
Superior multi-faceted 16 x 1ct Black Diamond hand made bracelet, each stone measures approx 5.6 x
Category

2010s Australian Modern Beaded Bracelets

Materials

Diamond, Blue Diamond, 14k Gold, Gold-filled, Yellow Gold

Aquamarine 16 Carat Diamond Cocktail Ring
Located in Scottsdale, AZ
Aquamarine 18k White Gold ring complete with an 16 carat Emerald cut Aquamarine stone in the center
Category

Late 20th Century Unknown Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold

Gorgeous 16 Carat Diamond Day and Night Dangle Earrings
By Vivid Diamonds
Located in Miami, FL
marquees cut diamonds with a jaw dropping total weight of approximately 16 Carats, set in 18k white gold
Category

Vintage 1980s American Modern Dangle Earrings

Materials

White Diamond, 18k Gold

14 Karat White Gold .16 Carat Diamond Band
Located in Scottsdale, AZ
Designer: custom Material: 14k white gold Diamonds: 11 round brilliant cut= .16cttw Color: G
Category

21st Century and Contemporary Band Rings

Materials

Diamond, 14k Gold, White Gold

14 Karat Rose Gold .16 Carat Diamond Band
Located in Scottsdale, AZ
Designer: custom Material: 14k rose gold Diamonds: 11 round brilliant cut= .16cttw Color: G
Category

21st Century and Contemporary Band Rings

Materials

Diamond, 14k Gold, Rose Gold

16 Carat Diamond 0.92 Solitaire Diamond Platinum Art Deco Style Tennis Bracelet
Located in New York, NY
solitaire diamonds totaling 1.75 carats. 75 Baguette diamonds total 4 ct 12 round brilliant cut diamonds
Category

Vintage 1960s Art Deco Retro Bracelets

Materials

Diamond, Platinum

Cartier 16 Carat Diamond In and Out Wide Hoop Clip Earrings
By Cartier
Located in Boca Raton, FL
. Featuring 16 carats of pave set round brilliant cut diamonds, the diamonds are seen from all sides. The wide
Category

Late 20th Century French Modern Hoop Earrings

Materials

White Diamond, 18k Gold, White Gold

16 carat Diamond "Barrel" Style Bracelet set in 18 karat yellow gold
Located in Palm Desert, CA
a total weight of 16 carats. 7.75" bracelet. Each barrel twirls around independently. Diamonds are
Category

Late 20th Century Link Bracelets

Materials

Diamond, 18k Gold

16 Carats Diamond and 19 Carats Ruby 18 Karat White Gold Bracelet
Located in Bay Harbor Islands, FL
approximately 16 carats and 180 round rubies weighing approximately 19 carats. Circa 1955 7 inches in length
Category

Vintage 1950s American More Bracelets

Materials

Diamond, Ruby, 18k Gold, White Gold

16 Carat Diamond Eternity Ring 14 Karat Gold Wide Band Wedding Jewelry Certified
Located in Torrance, CA
, G-H color and VS-SI qualities. The total diamond weight is estimated at 16 carats. Size
Category

Mid-20th Century Unknown Modern Bridal Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

French Art Deco 16.56 Carat French Diamond Platinum Bangle
Located in Beverly Hills, CA
beauty with this impressive 16 carat diamond bracelet. Shine at any soiree you attend this year and many
Category

Vintage 1920s French Art Deco Cuff Bracelets

Materials

Diamond, Platinum

Victorian Diamond Pendant Necklace Old Mine Cushion Cut Mined Original 1870 s-18
Located in Dearborn, MI
120 Years Old We Set the Diamond in a Modern Pendant 100% Natural Mined Diamond .16 Carat Diamond
Category

Antique 1880s Victorian Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Diamond Topaz Earrings, London Blue Topaz Diamond Halo, 14K Gold 2 Carat Studs
By Five Star Jewelry
Located in Austin, TX
Diamond Total Weight: .16 Carats Diamond Clarity: VS2 (excellent, eye clean) Diamond Color: G (excellent
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, Topaz, Blue Topaz, Gold, 14k Gold, White Gold

Vivid Diamond 16 Carat Asscher Cut Diamond Dangle Earrings
By Vivid Diamonds
Located in Miami, FL
spectacular collection of 38 Asscher cut diamonds weighing 16 carats total, D-F color, VVS-VS clarity, The
Category

21st Century and Contemporary American Modern Dangle Earrings

Materials

Diamond, Platinum

1900s Art Nouveau Diamond Gold Platinum 3 Stone Engagement Ring
Located in Cape May, NJ
. The center stone is about .45 and it is flanked by a .18 carat and .16 carat diamond. The diamonds are
Category

Antique Early 1900s Art Nouveau Engagement Rings

Materials

Diamond, 18k Gold, Platinum

Faye Kim 18 Karat Gold Triple Diamond Oval Moonstone Pendant
By Faye Kim
Located in Darien, CT
worn alone. Ideal for every occasion! Moonstone 16 carats Diamonds .06 twc Pictured with 18K gold oval
Category

2010s American Contemporary Pendant Necklaces

Materials

Moonstone, Rainbow Moonstone, Diamond, 18k Gold, Gold

16 Carat Emerald Cut Diamond Bracelet
By Emilio!
Located in New York, NY
Approx. 16 carats total weight diamonds.The finest conflict free diamonds set in our unique endless
Category

21st Century and Contemporary Modern Tennis Bracelets

Materials

Diamond, White Diamond, 18k Gold, Platinum

Impressive 16 Carat Oval Diamond Eternity Band
Located in San Francisco, CA
An eternity band that is sure to turn heads. 16 carats of fine oval cut diamonds, averaging G-H
Category

21st Century and Contemporary American Wedding Rings

Materials

Diamond, 18k Gold

16 Carat Ruby 1 Carat Diamond Affordable Tennis Bracelet 18 Karat Gold New
Located in New York, NY
spaced by two diamonds . The weight of the Ruby is 16 Carat .Total number of diamonds are 38 and diamond
Category

2010s Tennis Bracelets

Materials

Diamond, Ruby, 18k Gold

140 Carat, Art Deco Solitaire Ring Diamond and 16 Diamonds 025 Carat
Located in VALLADOLID, ES
0.25 cts. approx.. 16 diamonds , total approx 0,25 ct, shape : single cut Carat: each approx , 0,01 ct
Category

Vintage 1940s Spanish Art Deco Engagement Rings

Materials

Diamond, Platinum

11.16 Carats Aquamarine, 16 Carats Morganite Diamonds Chandelier/Drop Earrings
By JEWEL HUB
Located in Hong Kong, HK
& Diamonds. The weight of the Aquamarines is 11.16 carats. The weight of the Pear shaped Morganite is 16.60
Category

2010s Indian Modern Chandelier Earrings

Materials

Aquamarine, Diamond, Morganite, 18k Gold

16 Carat Carved Amethyst Diamond Vintage Cocktail Ring
Located in Santa Barbara, CA
centerpiece is a 16 carat amethyst, masterfully carved with two opposing bats, representing happiness. Gracing
Category

Vintage 1960s Retro Cocktail Rings

Materials

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

16 Carat Round Diamond 14 Karat Yellow Gold Tennis Necklace 24
Located in Great Neck Plaza, NY
setting. The total diamond weight is 16 carats. The closure is an insert clasp with safety clasp. Length
Category

2010s American More Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

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16 Carat Diamond For Sale on 1stDibs

You are likely to find exactly the 16 carat diamond you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. Our collection of these items for sale includes 314 vintage editions and 748 modern creations to choose from as well. Finding the perfect 16 carat diamond may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. For this particular piece, .5 Carat and 1 Carat are consistently popular carat weights. Finding an appealing 16 carat diamond — no matter the origin — is easy, but LB Exclusive, Meghna Jewels and Luigi Ferrara 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. Finding a 16 carat diamond for sale for women should be easy, but there are 275 pieces available to browse for unisex as well as men, too.

How Much is a 16 Carat Diamond?

The price for a 16 carat diamond starts at $230 and tops out at $1,250,000 with these rings, on average, selling for $7,479.

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 16 Carat Diamond
  • 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 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 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 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 ExpertNovember 1, 2023
    There is no set number of diamonds on a 16-inch tennis necklace. The number of diamonds that make up a tennis chain often depends on the size of the gemstones. Generally, the larger the diamonds are, the fewer there are on a tennis necklace. On 1stDibs, explore a variety of tennis necklaces.
  • 1stDibs ExpertNovember 1, 2023
    Whether two-carat diamond studs are too big is a matter of personal preference. At this size, each earring will be one carat. If you opt for the classic round brilliant cut, the studs will typically measure around 6.5 millimeters in diameter, which is a little more than half the size of a dime. Find a wide range of diamond stud earrings on 1stDibs.
  • 1stDibs ExpertNovember 8, 2023
    Whether 1.3-carat diamond earrings are too small is a matter of personal opinion. A pair of earrings with a total carat weight of 1.3 is considered to be medium-sized. The smallest diamond earrings are around 0.25 carats, while the largest are 1.5 carats or more. Explore a wide range of diamond earrings on 1stDibs.