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Tiffany Co., Paper Flower Diamond Platinum Ring
By Tiffany Co.
Located in Bethesda, MD
: Platinum • Circa: 21st Century • Gemstone: Diamonds • Diamonds: .16 carats • Size: 6, can be resized
Category

Early 2000s Italian Fashion Rings

Materials

Diamond, Platinum

Cartier Twin Cabochon Sapphire and Diamond Ring
By Cartier
Located in Bethesda, MD
♦ Designer: Cartier ♦ Metal:Platinum ♦ Gem stone: 16 Diamonds=.25 carats ♦ Gem stone: 2 Sapphires
Category

1990s American Fashion Rings

Materials

Diamond, Blue Sapphire, Platinum

Rosecut Diamond and 22 Karat Gold Y-Necklace
Located in Nantucket, MA
2.25 inches long. Necklace length is 16 inches. Carat weight of diamonds is .80.
Category

21st Century and Contemporary Chain Necklaces

Materials

Diamond, 22k Gold

1940s Retro Platinum 31 Carat Aquamarine Cocktail Ring
Located in Santa Barbara, CA
Accent Diamonds: 16 = 0.52 Carats Total Ring Size: 7, sizeable Rise Above Finger: 12mm Ring Face: 22mm x
Category

Vintage 1940s Retro Cocktail Rings

Materials

Aquamarine, Platinum

Art Deco Sapphire and Diamond Ring
Located in Litchfield, CT
.16 carats of brilliant white diamonds (F color, VS clarity). Finely fashioned in 14k white gold, the
Category

Vintage 1930s North American Art Deco Fashion Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Tiffany Co. Emerald Diamond Gold Platinum Leaf Brooch
By Tiffany Co.
Located in Bethesda, MD
An elegant leaf brooch from Tiffany & Co, set with round emeralds and 16 brilliant diamonds
Category

Vintage 1980s American Brooches

Materials

Diamond, 18k Gold

Sophisticated 1.87ct Diamonds Bracelet in 20k Yellow Gold
Located in רמת גן, IL
generations to come. Metal: 20k Yellow Gold Main stone: 16 diamonds Main stone carat weight: 1.6ct Shape
Category

2010s Singaporean Tennis Bracelets

Materials

Diamond, Yellow Gold

14W Pink Tourmaline, Purple Stone Diamond Ring
Located in McLeansville, NC
cut - 2 mm - approximately .16 total carats - diamonds, 32 stones - single cut round - 1 - 1.3
Category

1990s Band Rings

Materials

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

14W Pink Tourmaline, Purple Stone Diamond Ring
Located in McLeansville, NC
cut - 2 mm - approximately .16 total carats - diamonds, 32 stones - single cut round - 1 - 1.3
Category

1990s Band Rings

Materials

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

14K White Gold and Diamond Vine Stackable Band
Located in McLeansville, NC
cut round diamonds weighing approximately .16 total carat. Stones: - diamonds, 8 stones - full cut
Category

Early 2000s Band Rings

Materials

Diamond, 14k Gold, White Gold

A Fabulous Platinum and Diamond Art Deco Bracelet
Located in New York, NY
weighing an average of .04 carat and totaling approximately 3.60 carats; 16 baguette diamonds ranging from
Category

Vintage 1930s American Art Deco Link Bracelets

Materials

Diamond, Platinum

Vintage 14 Karat White Gold Diamond Ring
Located in Los Angeles, CA
This ring features a 16 pieces Round cut diamond in approximately 0.57 carat total weight ,I color
Category

Vintage 1950s American Art Nouveau Cluster Rings

Materials

Diamond, 14k Gold, White Gold

Victorian Sapphire Diamond 18 Karat Gold Ring
Located in Beverly Hills, CA
carats. Accented by 16 diamonds weighing approximately 0.50 carats, I,J color SI clarity. This Victorian
Category

Antique 19th Century Unknown Victorian More Rings

Materials

Diamond, Blue Sapphire, 18k Gold

Axel Russmeyer Diamond Platinum Woven Jeweled Drop Earrings
By Axel Russmeyer
Located in Greenwich, CT
bezel set in platinum. Total diamond weight .16 carats. Made in Hamburg, Germany. Total height 1 1/4
Category

2010s German Contemporary Drop Earrings

Materials

White Diamond, Platinum

14 Karat Yellow Gold Diamond Flower Earring Jackets
Located in McLeansville, NC
: - diamonds, 16 stones - single cut round - 1.25 mm - approximately .12 total carats - H-I color, SI
Category

Vintage 1970s More Earrings

Materials

Diamond, Gold, 14k Gold, Yellow Gold

14 Karat White Gold Peridot and Diamond Ring
Located in Scottsdale, AZ
Material: 14k white gold Peridot: round faceted =2.00 carat Diamonds: 16 round brilliant cut = 0.10cttw
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Peridot, 14k Gold, White Gold

Enchanting 1.26ct Sapphire and Diamonds Halo Necklace - GIA Certified
Located in רמת גן, IL
purplish-pink hue. This central gem is gracefully complemented by 16 round diamonds totaling 0.25 carats
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, Sapphire

Faye Kim 22K Gold Diamond Woven Circle Pendant and Chain
By Faye Kim
Located in Darien, CT
next level. The look is pure understated chic! Diameter: 1.5" Chain: 18" Diamonds: .16 Carats twt
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Gold, 22k Gold

Diamond, Sapphire and Emerald Spider Brooch Pin
Located in Miami, FL
sapphire cabochons weighing approximately 2.50 carats total, 16 single cut diamonds weighing approximately
Category

Vintage 1980s Unknown Modern Brooches

Materials

Diamond, Emerald, Sapphire, 18k Gold

Platinum 18K Diamond Ring by Jean Schlumberger for Tiffany
By Jean Schlumberger
Located in Chicago, IL
Jean Schlumberger for Tiffany X Love ring in Platinum, 18K Yellow Gold and Diamonds, 16 Diamonds
Category

21st Century and Contemporary American Band Rings

Materials

Diamond, 18k Gold, Platinum

Sophisticated 1.10ct Triple Excellent Ideal Cut Diamonds Halo Necklace
Located in רמת גן, IL
: Excellent Side stone: 16 pcs Diamonds Side stone carat weight: 0.10ct Shape: Round Color grade: G-H Clarity
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Diamond Round Baguette Cluster Drop Lever Back Yellow Gold Earrings
By Sarosi By Timeless Gems
Located in Los Angeles, CA
baguette-cut diamonds, .16 carats total 24 round brilliant cut diamonds, .76 carats total
Category

21st Century and Contemporary Artisan Drop Earrings

Materials

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

LB Exclusive 18K White Gold 16.00 Ct Full Diamond Necklace
By LB Exclusive
Located in Southampton, PA
on every link, and even the lobster claw closure, for a total of 16 carats of diamonds over the piece
Category

21st Century and Contemporary More Necklaces

Materials

Diamond, White Gold

14k white gold diamond wedding 3 row ring
By Gregory Mikaelian Sons, Inc.
Located in Los Angeles, CA
diamonds: 16 PIECES carat total weight: 1.17 color: H clarity: SI2-I1 metal: white gold
Category

21st Century and Contemporary American Contemporary Cluster Rings

Materials

Diamond, 14k Gold, White Gold

Antique Art Deco Diamond Toi Et Moi Ring
Located in Santa Barbara, CA
Diamonds: (16) Carat Weight: 0.38 Carats Total Cut: Round Brilliant & Single Cut Color: G-H Clarity: VS1
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, 14k Gold, White Gold

Natural Certified Yellow Pink White Diamond Toi et Moi Gold Silver Bypass Ring
By Steven Fox Jewelry
Located in Greenwich, CT
.16 carats. Pink diamond GIA certification number 5202469333. Blue diamond GIA certification number
Category

2010s North American Modern Fashion Rings

Materials

Yellow Diamond, Pink Diamond, White Diamond, Gold, Silver

14 Karat White Gold Ruby and Diamond Crossover Ring
Located in Scottsdale, AZ
Designer: custom design Material: 14k white gold Gemstone: 1 oval cut ruby = 0.17 carats Diamonds
Category

21st Century and Contemporary More Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

Exquisite 1.72ct Diamonds Bracelet in 18k White Gold - IGI Certified
Located in רמת גן, IL
bracelet sparkles with 16 round diamonds, totaling 1.72 carats. With an exceptional color grade and clarity
Category

2010s Israeli Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Tiffany Co. Art Deco Diamond Sapphire Platinum Line Bracelet
By Tiffany Co.
Located in Greenwich, CT
. Total approximate weight of sapphires 16 carats. Total approximate weight of diamonds 4.00 carats. 7 1
Category

Vintage 1910s American Art Deco Tennis Bracelets

Materials

Diamond, Sapphire, Platinum

Exquisite 1.23ct Diamonds Necklace in 18k White Gold - IGI Certified
Located in רמת גן, IL
diamond necklace offers a captivating combination of brilliance and sophistication. Featuring 16
Category

2010s Israeli Drop Necklaces

Materials

Diamond, 18k Gold, White Gold

Retro Citrine Diamond 14 Karat Yellow Gold Vintage Ring
Located in Boca Raton, FL
east to west and features 2 single cut diamonds weighing .16 carat total weight. The ring measures 11.5
Category

Mid-20th Century Unknown Retro More Rings

Materials

Citrine, Diamond, Yellow Gold

14 Karat Yellow Gold, Diamond and Sapphire Bracelet
Located in Brisbane City, QLD
colour and SI clarity totalling 16 links and 0.96 carat of diamonds. The bracelet terminates with an
Category

Late 20th Century American Modern Tennis Bracelets

Materials

Diamond, Sapphire, Gold, 14k Gold, Yellow Gold

14 Karat Gold Morganite and Diamond Cocktail Ring
Located in Princeton, NJ
carats and accented by a halo of 16 round diamonds weighing 1.92 carats. The diamonds are G-H in color
Category

Early 2000s Unknown Modern Cocktail Rings

Materials

Diamond, Morganite, 14k Gold

Sophisticated 1.20ct Double Excellent Ideal Cut Diamond Halo Necklace - GIA
Located in רמת גן, IL
stone: 16 pcs Diamonds Side stone carat weight: 0.20ct Shape: Round Color grade: F-G Clarity grade: VS
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Radiant 2.38ct Diamonds Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
feature 16 pear-shaped diamonds totaling 2.38ct, creating a refined silhouette with soft, elongated
Category

2010s Israeli Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Lovely 1.15ct Double Excellent Ideal Cut Diamonds Necklace with Pendant
Located in רמת גן, IL
carat weight: 1.03ct Shape: Heart Color grade: H Clarity grade: VVS2 Side stone: 16 pcs Diamonds Side
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Captivating 22.29ct South Sea Cultured Pearls and Diamonds Earrings
Located in רמת גן, IL
Side stone: 16 pcs Diamonds Side stone carat weight: 0.58ct Shape: Round Color grade: D-E Clarity
Category

2010s Israeli Drop Earrings

Materials

Diamond, Cultured Pearl, 18k Gold, Yellow Gold

Captivating 6.12ct Rubies and Diamonds Earrings in 18k Yellow Gold
Located in רמת גן, IL
weight: 1.63ct Shape: Oval Color grade: Red Side stone: 16 pcs Diamonds Side stone carat weight: 1.72ct
Category

2010s Israeli Lever-Back Earrings

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Large 14 Karat Yellow Gold Citrine and Diamond Pin Brooch
Located in Baltimore, MD
: 35 x 26 x 16, approx. 98 carats Diamonds: 5 round brilliant cut diamonds, approx. 0.40 carats, G-H SI
Category

Mid-20th Century Brooches

Materials

Citrine, Diamond, 14k Gold, Yellow Gold

Cartier Yellow Gold Art Deco Leaf Foliage Diamond Brooch
By Cartier
Located in New York, NY
: 16 Round Brilliant cut diamonds. Carat Weight: 0.75cts approx. 18K Yellow Gold. Dimensions: 2.8in x
Category

Vintage 1930s French Art Deco Brooches

Materials

Diamond, Yellow Gold

Diamond by the Yard Necklace in 18 Karat Gold
Located in Hong Kong, HK
diamonds and the allure of rose gold. 16 inch Pear Diamond 0.07 carat Round Diamonds 0.26 carat
Category

2010s Hong Kong Modernist Chain Necklaces

Materials

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

Tiffany Co Signed Schlumberger Diamond Band Size 7
By Jean Schlumberger for Tiffany Co.
Located in Santa Barbara, CA
. Condition: Very good Era: Contemporary vintage Year: 2000s Metal: 18k Yellow Gold & Platinum Diamonds: (16
Category

21st Century and Contemporary Contemporary Wedding Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold, Platinum

Elegant 0.40ct Diamond Halo Necklace in 14k Rose Gold – AIG Certified
Located in רמת גן, IL
a carat weight of 0.40-carat. Surrounding the central diamond are 16 side diamonds, cumulatively
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold

Brilliant 1.65ct Ruby Pendant w/ Side Diamonds - (Chain not Included)
Located in רמת גן, IL
Clarity grade: N/A Side stone: 16 pcs Diamonds Side stone carat weight: 0.20ct Shape: Round Brilliant
Category

2010s Singaporean Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

Exquisite 0.55ct Emerald and Diamonds Ring in 18K Yellow Gold
Located in רמת גן, IL
grade: Green Clarity grade: N/A Side stone: 16 stones diamonds Side stone carat weight: 0.12ct Shape
Category

2010s Singaporean Cluster Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Luxurious 0.90ct Diamonds Drop Earrings in 14k Yellow Gold - IGI Certified
Located in רמת גן, IL
six triangular diamonds with a total carat weight of 0.81-carat. Accentuating this masterpiece are 16
Category

2010s Israeli Drop Earrings

Materials

Diamond, 14k Gold, Yellow Gold

Beautiful 0.40ct Diamond Halo Necklace in 14k Yellow Gold - AIG Certified
Located in רמת גן, IL
. Encircling the main diamond are 16 additional round diamonds, totaling 0.10-carat. Certified by AIG
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Exquisite 1.34ct Diamonds Stud Earrings in 14k White Gold - IGI Certified
Located in רמת גן, IL
-yellow diamonds totaling 0.60 carats. Enhanced by 16 round side diamonds, totaling 0.74 carats these
Category

2010s Israeli Stud Earrings

Materials

Diamond, 14k Gold, White Gold

14K Yellow Gold Paperclip Necklace with Emerald and Diamond Pendant
Located in Old Tappan, NJ
center fine quality oval shape emerald weighing 1.00 carats. - 16 inches long - Diamonds are G color, VS
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

GIA 2.18 Diamond Solitaire Engagement Ring Basket Setting Handmade
Located in Miami, FL
can be found on the GIA website. There are an additional 16 diamonds totaling 0.08 carats with F/G
Category

2010s American Bridal Rings

Materials

Diamond, 18k Gold, Yellow Gold, Gold

Oval Ruby Diamond Design Fashion Statement Ring 14 Karat White Gold
By Alberto
Located in GREAT NECK, NY
16 Brilliant Round White Diamonds at 0.09 Carats - Color: H-I /Clarity: SI Alberto offers
Category

2010s American Contemporary Fashion Rings

Materials

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

Stunning 0.90ct Triple Excellent Ideal Cut Diamonds Halo Necklace -GIA Certified
Located in רמת גן, IL
grade: G Clarity grade: VS1 Cut grade: Excellent Side stone: 16 pcs Diamonds Side stone carat weight
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Van Cleef and Arpels Sapphire Diamond gold platinum cluster Ring
By Van Cleef Arpels
Located in Bethesda, MD
center cabochon sapphire weighing 4.16 carats and 16 brilliant cut diamonds weighing 2.21 carats. set in
Category

Late 20th Century American Cluster Rings

Materials

Diamond, Pink Sapphire, 18k Gold, Platinum

Radiant 0.97ct Diamonds Halo Necklace with Pendant in 18k Rose Gold
Located in רמת גן, IL
: 16 pcs Diamonds Side stone carat weight: 0.22ct Shape: Round Color grade: F-G Clarity grade: VS
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Stunning 0.72ct Double Excellent Ideal Cut Diamonds Halo Necklace with Pendant
Located in רמת גן, IL
. Surrounding the main stone are 16 round side diamonds, totaling 0.20-carat, enhancing the necklace's
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold

Lovely 1.30ct Diamonds Halo Necklace with Pendant in 18k White Gold
Located in רמת גן, IL
its centerpiece. Accentuating the pendant are 16 round-cut diamonds, adding 0.28-carat of dazzling
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Alluring 1.17ct Diamond Halo Necklace in 18k Yellow Gold - GIA Certified
Located in רמת גן, IL
halo necklace, crafted from the finest 18k yellow gold, features a central 1.02-carat round diamond
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k 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 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 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 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.