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Vintage GIA 11.30 Carat Emerald Diamond 18 Karat White Gold Cluster Ring
Located in Beverly Hills, CA
0.50 carat, and 16 marquise cut diamonds with a total weight of approximately 1.60 carats, all graded I
Category

Vintage 1980s Retro Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Wempe Ring in 18 Carat Yellow and White Gold Sapphire Cabochon and Diamonds
By Wempe
Located in Paris, FR
WEMPE Ring in Yellow and White 18 Carat Gold setting a Sapphire Cabochon with entourage of 16
Category

Vintage 1970s German Cocktail Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold

1.00 Carat Tanzanite and Diamond Ring 18 Karat White Gold
Located in Scottsdale, AZ
Diamonds: 16 round brilliant cuts = 1.06 carat total weight Dimensions: ring top is 1/4 inches in diameter
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Tanzanite, 18k Gold, White Gold

Raymond Yard Carved Pink Tourmaline Bracelet, 21.95 Carats
By Raymond C. Yard
Located in New Orleans, LA
pink tourmaline flowers: 21.95 carats 16 pear-shaped green tsavorites: 3.23 carats 16 marquise diamonds
Category

21st Century and Contemporary American Modern Modern Bracelets

Materials

White Diamond, Onyx, Tourmaline, Tsavorite, Platinum

Black Diamond Bead Necklace
By Pamela Farland
Located in New York, NY
both delicate and bold. Diamonds weigh 16 carats. Hand crafted by the artist in her New York studio
Category

21st Century and Contemporary American Contemporary Beaded Necklaces

Materials

Black Diamond, Gold

Alexander GIA 1ct Oval Fancy Yellow Diamond with Double Diamond Halo 18k Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
white and yellow gold, 16 inches. 1.35 carats total diamond weight. Accommodated with an up to date
Category

2010s American Modern Pendant Necklaces

Materials

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

Alexander GIA 1ct Heart Fancy Yellow VVS2 Diamond with Diamond Halo 18k Gold
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
yellow gold, 16-18 inches. 1.24 carats total diamond weight. Accommodated with an up to date appraisal
Category

2010s American Modern Pendant Necklaces

Materials

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

Vintage 1940s Platinum and Diamond Necklace
Located in Chicago, IL
totaling 16 Carats and all Grading as G to H in color and VS in Clarity, the Bottom Marquise Diamonds have
Category

Vintage 1940s American Art Deco Link Necklaces

Materials

Diamond, Platinum

Van Cleef Arpels Ruby and Diamond Ring
By Van Cleef Arpels
Located in New York, NY
total weight 1.40 carats); 16 Round brilliant-cut diamonds (approximate total weight 0.64 carat); 18K
Category

Vintage 1970s Cocktail Rings

Materials

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

Faye Kim Matte Platinum Burnished Diamond Huggy Hoop Earrings
By Faye Kim
Located in Darien, CT
stylish way to hug your ears. Diamonds: .16 carats twt Signature Collection: non negotiable
Category

2010s American Contemporary Hoop Earrings

Materials

Diamond, Platinum

Faye Kim s 18k Gold Diamond Baguette Drop Necklace
By Faye Kim
Located in Darien, CT
Diamond .16 Carats Signature Collection: non negotiable
Category

2010s American Contemporary Choker Necklaces

Materials

Diamond, Gold, 18k Gold

Georgian Era Emerald Diamond Cocktail Ring
Located in Montgomery, AL
Gemstones; Estimated Combined Gemstone Weight: 1.2 Carats 16 - Old Mine Cut Diamonds; Averaging 2.4mm
Category

Antique 18th Century Georgian Cocktail Rings

Materials

Diamond, Emerald, Gold, 18k Gold, Yellow Gold, Silver

Chopard Happy Diamonds Diamond Gold Double Elephant Pin
By Chopard
Located in Beverly Hills, CA
) Weight: 5 diamonds weighing .16 carats; Total pin weight 16.8 grams No box or papers included
Category

20th Century Swiss Brooches

Materials

White Diamond, 18k Gold

18 Karat Yellow Gold Blue Diamond Ring with White Diamonds Surrounding
By Gregory Mikaelian Sons, Inc.
Located in Los Angeles, CA
: 16 PCS carat total weight: 0.40 color: G clarity: SI1 brand: custom metal: gold
Category

Early 2000s American Modern Fashion Rings

Materials

Diamond, Blue Diamond, 18k Gold

Alexander GIA 6.24ct Heart Champagne Yellow Diamond 18k Pendant Necklace
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
VS clarity. 18k two-tone white & yellow gold, 9.10 grams, 16 inches. 7.13 carats total diamond weight
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, Yellow Diamond, White Diamond, Gold, 18k Gold, White Gold, Yell...

Tiffany Co. Platinum Novo Cushion Diamond Engagement Ring 2.35ct, TW I VS1
By Tiffany Co.
Located in New York, NY
Diamonds: 16 Side Diamond Carat Weight: 0.16 cts Total Carat Weight: 2.35 carats Package Includes Original
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Tiffany Co. Platinum Novo Cushion Diamond Engagement Ring 2.35ct, TW I VS1
By Tiffany Co.
Located in New York, NY
Diamonds: 16 Side Diamond Carat Weight: 0.16 cts Total Carat Weight: 2.35 carats Package Includes Original
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Sapphire and Diamond Earrings
By Cayen Collection
Located in Carmel, CA
Lanka Sapphires: 9.29 carats total 16 Diamonds: 3.16 carats total #210-823
Category

2010s Stud Earrings

Materials

Diamond, Sapphire, 18k Gold

Alexander Beverly Hills 1.98ct Pear Yellow White Diamond Cluster Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
VS clarity grade. Complimented with 16 round yellow diamonds, 0.10 carats. Approximately Fancy Yellow
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...

Tiffany Co. Platinum Novo Round Diamond Engagement Ring 2.55 cts. TW GVS2
By Tiffany Co.
Located in New York, NY
Symmetry: Excellent Side Diamonds: 16 Side Diamond Carat Weight: 0.16 cts Side Diamond Color/Clarity: D-F
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Alexander 1.22ct Round Diamond with Halo 18k White Gold Pendant Necklace
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
brilliant diamonds, 0.34ct. Approximately G/H color and SI clarity. 18k white gold, 16 inches. 1.22 carats
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, 18k 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

Diamond Ruby Cocktail Ring
Located in Bangkok, TH
Diamond weight 0.23 Carat in the center Surrounded by French Cut Ruby 16 pieces 0.25 Carat, Diamond
Category

Mid-20th Century Thai Art Deco Cocktail Rings

Materials

Diamond, Ruby, Platinum

Cartier Himalia Diamond Suite
By Cartier
Located in Weston, MA
approximately 2.0 inches long Ring is a size 7.5 Approximately 16 carats of diamonds 18k gold Signed Cartier
Category

2010s French Link Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

AGL Certified 13.10 Ct Emerald Cut Colombian Emerald Diamond 18K Gold Ring
Located in New York, NY
/ Engagement ring 13.1 Carat of Finest Colombian Emerald and Diamond Ring, Estate Extreme fine color and
Category

Late 20th Century Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Marquise Shaped Ruby and Diamond Necklace
Located in Great Neck, NY
with VS2, G color diamonds, made out of 16 diamonds totaling 0.14 carats, and 1 marquise-shaped ruby
Category

21st Century and Contemporary American Modern Pendant Necklaces

Materials

Diamond, Ruby

Tiffany Co. Diamond Drop Necklace
By Tiffany Co.
Located in London, GB
(Very Good) Weight: 3.3 grams Pendant Chain Length: 44mm Necklace Length:16 Inches Diamond Carat
Category

21st Century and Contemporary Drop Necklaces

Materials

Diamond, Platinum

Alexander GIA Certified 10.17ct No Heat Ceylon Sapphire with Diamonds Ring 18k
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
(Ceylon) origin, GIA Certified. Complimented with 16 round brilliant diamonds, 1.92 carats. Approximately
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

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

Diamond Sapphire Band, 18K Yellow Gold, Stackable Diamond Band, Something Blue
Located in McLeansville, NC
- round cut - 2 mm - approximately .16 total carats - diamonds, 3 stones - full cut round - 1.75 mm
Category

Vintage 1970s Band Rings

Materials

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

3.52 Carat Blue Beryl, Pink Tourmaline, and Iolite East West Halo Ring 14K Gold
By Alberto
Located in GREAT NECK, NY
mm Mounting Stone Details: 19 Round Pink Tourmalines at 0.59 Carats Mounting Stone Details: 16
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Blue Diamond, Iolite, Tourmaline, 14k Gold, Whit...

No Heat Sapphire and Diamond Ring
By Cayen Collection
Located in Carmel, CA
fabricated, 18k white gold setting. Certified Sapphire: 8.82 carats 16 Round Brilliant Diamonds plus
Category

2010s Cocktail Rings

Materials

Diamond, Sapphire, 18k Gold

Platinum Emerald Diamond Cluster Ring
Located in Houston, TX
emeralds that total 5.80 carats. In addition, there are 16 round diamonds totaling 0.50 carats; G-H color
Category

Mid-20th Century Unknown Cocktail Rings

Materials

Diamond, Emerald, Platinum

Retro Diamond Emerald and Platinum Earrings
Located in New York, NY
diamonds with an approximate total weight of 2.70 carats, and 16 baguette cut diamonds with an approximate
Category

Vintage 1930s Retro Clip-on Earrings

Materials

Diamond, Emerald, Platinum

Reversible Flip Top Diamond Ring
Located in Coral Gables, FL
14 Karat White Gold Flip Top Ring Featuring 32 Princess Cut Diamonds Totaling 1.84 Carats and 16
Category

Late 20th Century Cluster Rings

Materials

Diamond, 14k Gold, White Gold

Mid-Century, French, Diamond Gemstone Enamel 18k Gold Lion Hinged Bracelet
Located in Beverly Hills, CA
. Accented by 10 round brilliant cut rubies with a total weight of approximately 0.70 carat, and 16 single
Category

Vintage 1960s Bangles

Materials

Diamond, Pearl, Ruby, Gold, 18k Gold, Yellow Gold, Enamel

Victorian Rose Cut Diamond Sapphire Pearl and Ruby Butterfly Necklace
Located in London, GB
Total Diamond Carat Weight: Approx. 0.86 carats Pearls: 12 (4mm - 2.5mm) Sapphires: Approx. 0.50 carats
Category

20th Century English Victorian Pendant Necklaces

Materials

Diamond, Pearl, Ruby, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Go...

Classic Oval-Cut Yellow Diamond with Rose-Cut White Diamond 18k TT Gold Ring
Located in New York, NY
& Grace Ring. The 18K Two Tone Gold jewelry boasts with Oval-cut 1 pcs 1.24 carat, Rose-cut 16 pcs 1.14
Category

20th Century Chinese Art Deco Engagement Rings

Materials

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

LeVian Aquamarine Diamond Ring, 14K Gold, March Birthstone, Le Vian Diamond Ring
By Le Vian
Located in McLeansville, NC
. Stones: - aquamarine, 1 stone - oval cut - 9 x 7 mm - approximately 1.75 carats - diamonds, 16 stones
Category

Vintage 1970s Fashion Rings

Materials

Aquamarine, Diamond, Gold, 14k Gold, Rose Gold

Blue Sapphire, Diamond Platinum Drop Pendant
Located in Carmel-by-the-Sea, CA
of .25 carats each with 16 diamonds surrounding the sapphire of .15 carats each. All mounted in
Category

20th Century Drop Necklaces

Materials

Sapphire, Diamond, Platinum

Tiffany Co. Platinum Heart Cut Diamond Band
By Tiffany Co.
Located in Scottsdale, AZ
Designer: Tiffany & Co. Material: platinum Diamonds: 16 heart cut diamonds = 8.00 carat total
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Platinum

Onyx, Diamond Platinum Art Deco Style Bracelet
Located in Carmel-by-the-Sea, CA
brilliant round cut diamonds weighing 16 carats total set in platinum.
Category

20th Century Link Bracelets

Materials

Diamond, Platinum

New Amethyst Cabochon and Diamond Ring
By Baume
Located in Poitiers, FR
: about 16 carats, Total diamond weight: about 0.20 carat. Length: 20 mm, width 18 mm, height on the
Category

21st Century and Contemporary French Art Deco Cocktail Rings

Materials

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

Asprey Aquamarine Diamond Gold Earrings
By Asprey International Limited
Located in Litchfield, CT
aquamarine and .16 carats of superb diamonds (G color, VS clarity) for a delightfully sparkly look they are a
Category

Early 2000s British Stud Earrings

Materials

Aquamarine, White Diamond, 18k Gold, White Gold

Tiffany Co. Diamond Key Pendant Necklace
By Tiffany Co.
Located in London, GB
Diamonds: Approx. 0.30 carats, Colour: F-G, Clarity: VS Hallmarked: Platinum, London, 2002 Marked: ‘Tiffany
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Italy Cocktail Ring In Solid 18Kt Gold With 10.62 Ctw Diamonds Ox Blood Coral
Located in Miami, FL
Sardinian coral, with a weight of about 9.5 carats. Diamonds: Mounted in channel settings, with 16 princess
Category

Late 20th Century Italian Modern Cocktail Rings

Materials

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

Oval Imperial Topaz and White Diamond Ring
By Alberto
Located in GREAT NECK, NY
12.0 mm Diamond Details: 16 Diamonds at 0.60 Carats - SI Clarity / H-I Color Ring Size: Size 6.5
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

Scattered Ruby and Diamond Pendant Necklace
Located in Coral Gables, FL
& 16 round brilliant cut diamonds of VS clarity & H color totaling 0.75 carat. The Pendant is Fixed to
Category

Vintage 1980s Pendant Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Modern Fancy Shape Diamond Platinum Bracelet
Located in Boca Raton, FL
Spectacular diamond bracelet crafted in platinum featuring 16 diamonds weighing 7.82 carat total
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

White Diamond, Platinum

Tourmaline and Diamond Set Gold Earrings
Located in Litchfield, CT
tourmalines and .16 carats of brilliant white diamonds. Endlessly wearable, the look is everyday chic. Finely
Category

Vintage 1970s Stud Earrings

Materials

White Diamond, Tourmaline, 18k Gold, Yellow Gold

Sardinian Coral Diamond Drop Gold Pendant
Located in Napoli, NA
, Diamonds 3.50 total carats METAL: 18k white gold CHAIN MEASURES: 14.56 in (37 cm) long WEIGHT: 37.44 grams
Category

Mid-20th Century Pendant Necklaces

Materials

Coral, Diamond, 18k Gold

French Art Deco Diamond Set White Gold Ring
Located in Litchfield, CT
. Finely fabricated in 18k white gold and set with 16 carats of brilliant white diamonds (G color, SI1
Category

Vintage 1920s French Art Deco Engagement Rings

Materials

Diamond, White Diamond, 18k Gold

Art Deco Emerald and Diamond-Set Platlinum Ring
Located in Litchfield, CT
Circa 1920s, 18k, American. This classic Art Deco ring features a 2.26 carat emerald and .16
Category

Vintage 1920s American Art Deco Fashion Rings

Materials

Diamond, White Diamond, Emerald, Platinum

18K Diamond and Coin Earclips by Bulgari
By Bulgari
Located in Chicago, IL
" Coins. 16 Baguette Diamonds total 2.28 Carat and are F Color and VVS Clarity. These earrings were
Category

Late 20th Century Italian Clip-on Earrings

Materials

Diamond, 18k Gold

Forties Three Stone Diamond Ring GIA
Located in Litchfield, CT
clarity diamond and .16 carats additional G color, VS clarity accent diamonds HALLMARKS: 14k SKAL
Category

Vintage 1940s North American Engagement Rings

Materials

Diamond, 14k Gold

Cartier Paris Art Deco Diamond Ladies Watch
By Cartier
Located in New York, NY
single-cut diamonds with an approximate total weight of 1.20 carats, and 16 rose-cut diamonds with an
Category

Vintage 1920s French Art Deco Wrist Watches

Materials

Diamond, 18k Gold

14W Oval Opal Diamond Halo Ring
Located in McLeansville, NC
- 10 x 7.5 mm - approximately 1.50 carat - diamonds, 16 stones - full cut round - 2 mm
Category

Early 2000s Cocktail Rings

Materials

Diamond, Opal, 14k Gold, White Gold

Tiffany Co. Elsa Peretti Sapphire Diamond Platinum Necklace
By Tiffany Co.
Located in Chicago, IL
with 2 Bezel set Round Brilliant cut Diamonds totaling .16 Carat and one Bezel set Very Fine Color
Category

2010s American Chain Necklaces

Materials

Diamond, Sapphire, Platinum

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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 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 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 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 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
    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 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 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.