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64Facets Rose Cut Diamond and Platinum Chain Necklace, 15 Carat
By 64 Facets
Located in Los Angeles, CA
platinum links between each diamond and has 15 carat diamond weight. Available in multiple variations
Category

2010s American Contemporary Chain Necklaces

Materials

Diamond, White Diamond, Platinum

Antique Victorian Pearl Diamond Necklace 15 Carat Gold
Located in Lancaster, Lancashire
This fabulous solid 15ct Gold Antique Victorian necklace is set with the most beautiful workmanship
Category

Antique Early 1900s British Victorian Pendant Necklaces

Materials

Diamond, Pearl, 15k Gold

Diamond Necklace 15 Carat Bezel-Set in Platinum with a Diamond Flower Clasp
Located in New York, NY
Brilliant and sparkly diamond necklace bezel-set in platinum with mixed-cut clean, white diamonds
Category

Vintage 1950s American Art Deco More Necklaces

Materials

Diamond, Platinum

15 Carat Aquamarine and Diamond Pendant
Located in Toronto, Ontario
A stunning aquamarine and diamond pendant set in 18K white gold and strung on a 14K white gold
Category

1990s Pendant Necklaces

Materials

Aquamarine, Diamond, 14k Gold, 18k Gold, White Gold

15 Carat Gradual Round Cut Diamond Tennis Necklace 18 Karat White Gold
Located in Tarzana, CA
set with lovely round cut diamonds which total to 15.00 carats. This chain securely locks with slide
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Diamond, 14k Gold

15 Carats Tanzanite Diamonds 18 Carat White Gold Pendant
Located in Paris, FR
. Estimated weight of Tanzanite : 15 carats Total estimated weight of diamonds : 0.50 carats Dimensions
Category

Early 2000s French Modern Pendant Necklaces

Materials

Diamond, Tanzanite, 18k Gold, White Gold

.70 Carat Diamond Platinum Pendant on 15 Inch Chain
Located in Carmel, CA
carats of diamond accents. The piece is crafted in platinum and has an integrated 15 inch platinum chain.
Category

21st Century and Contemporary Art Deco Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

Georgian Era Star Set Diamond Crescent Necklet 15 Carat Gold
Located in Hamilton, AU
Our exquisite Georgian era star set diamond crescent necklet is a celestial dream captured in 15
Category

Antique 19th Century Unknown Georgian Pendant Necklaces

Materials

Diamond, Gold, Yellow Gold

Antique 1895 Old Mine Cut Diamond Shield Award Locket 15 Carat Yellow Gold
Located in Hamilton, AU
A treasure from a bygone era, the Marshall 1895 Diamond Shield Award Locket in 9 carat gold holds
Category

Antique 1890s Unknown Late Victorian Pendant Necklaces

Materials

Diamond, Gold, 15k Gold, Yellow Gold

15 Carat Diamond Line Necklace
Located in Miami, FL
weighing approximately 15 carats total G color VS-SI clarity, set in a seamless eternity of diamonds
Category

21st Century and Contemporary Unknown Modern More Necklaces

Materials

Diamond, 18k Gold, White Gold

Kurt Wayne 15 Carat Diamond Platinum Necklace
By Kurt Wayne
Located in Bethesda, MD
diamonds weighing 15 carats. The diamonds are G color and VVS clarity
Category

1990s Choker Necklaces

Materials

Diamond, Platinum

18 Karat Tahitian Pearl Diamond Pendant 0.83 Carats 15 MM
By Harbor Diamonds
Located in New York, NY
18 Karat white gold pendant featuring one grey Tahitian Pearl measuring 15 mm with a diamond cap of
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Pearl, White Gold

Tiffany Co. 15 Carat Victoria Diamond Necklace
By Tiffany Co.
Located in Miami, FL
cut diamonds weighing approximately .50cts F color and VS clarity. The necklace measures 16.5 inches
Category

20th Century American Link Necklaces

Materials

Diamond, White Diamond, Platinum

15 Carat Morganite Diamond Yellow Gold Rope Necklace
Located in Santa Barbara, CA
This beautiful 15 carat morganite and diamond pendant necklace is crafted with a modern
Category

2010s Modern Pendant Necklaces

Materials

Diamond, Morganite, Gold, 14k Gold, Yellow Gold

Platinum 15 Carat Diamonds by the Yard Chain Necklace
Located in New York, NY
Platinum 24 inches 15 Carat Diamonds by the Yard Chain Necklace. Classic and timeless, made with
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Diamond, Platinum

Tahitian Pearl Diamond Pendant 0.83 Carats 15 MM 18 Karat White Gold G-H SI
By Harbor Diamonds
Located in New York, NY
18 Karat white gold pendant featuring one light grey Tahitian Pearl measuring 15 mm with a diamond
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Pearl, 18k Gold, White Gold

15 Carat White Opal Pendant Necklace
Located in New York, NY
brilliant round diamonds. Diamonds weighing 0.27 carats total, F color and VS clarity. Necklace made in 14
Category

Early 2000s American Contemporary Pendant Necklaces

Materials

Diamond, Opal, 14k Gold, 18k Gold, Yellow Gold

GIA Certified Vintage Platinum Diamond 15 Carat Graduated Riviera Necklace
Located in Baltimore, MD
GIA Certified Platinum 15 Carat Graduated Riviera Diamond Necklace. Center diamond is a GIA
Category

Mid-20th Century Drop Necklaces

Materials

Diamond, Platinum

.15 Carat Round Brilliant Diamond Necklace, 14 Karat Yellow Gold Solitaire
Located in Greensboro, NC
Metal Content: Guaranteed 14k Gold as stamped Stone Information: Natural Diamond Clarity: I1
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Modern 15 Carat Old European Cut Diamond Platinum Rivière Necklace
Located in Beverly Hills, CA
diamond necklace contains over 15 carats (15.88 to be exact) of old European cut diamonds that are each
Category

2010s Unknown Contemporary More Necklaces

Materials

Diamond, Platinum

15 Carat Round Brilliant Baguette Diamond Platinum Estate Collar Necklace
Located in Boca Raton, FL
Stunning diamond collar necklace crafted in platinum. The estate necklace features 320 round
Category

Late 20th Century American Modern Link Necklaces

Materials

Diamond, Platinum

.15 Carat Diamond Pearl Two Tone Gold Question Mark Pendant Necklace
Located in Stamford, CT
Handmade question mark pendant necklace. circa 1910. 8 old cut diamonds set in 14k yellow and
Category

Early 20th Century Pendant Necklaces

Materials

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

Important Lightning Ridge 15 Carat Black Opal Diamond Vintage Necklace
Located in Santa Barbara, CA
This stunning black opal and diamond necklace is sure to impress. The nearly 15 carat centerpiece
Category

Vintage 1960s Art Deco Pendant Necklaces

Materials

Diamond, Opal, Black Opal, Platinum

15 Carat Oval Ethiopian Opal Diamond Pendant 14 Karat Yellow Gold Necklace
Located in New York, NY
Approximately 15 Carat Oval Ethiopian Opal & Diamond Pendant 14 Karat Yellow Gold Necklace with
Category

2010s Pendant Necklaces

Materials

Diamond, Opal, Gold, 14k Gold, Yellow Gold

15 Carat Aquamarine and Diamond Gold Pendant Necklace Fine Estate Jewelry
Located in Montreal, QC
with a 15 Carat Emerald-cut Aquamarine Gemstone, surrounded by Diamonds approx. 1.50 total Carat weight
Category

Vintage 1970s Modernist Pendant Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Gold, Yellow Gold

Le Vian 15 Carat White Diamond Blue Sapphire White Gold Necklace
By Le Vian
Located in Great Neck, NY
Sapphire Necklace with 9.75 Carats of Blue Sapphire and 5.75 Carats of White Diamonds.
Category

2010s More Necklaces

Materials

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

14kt Art Deco Necklace with .15 Carat Old European Cut Diamond
Located in Towson, MD
necklace. The pin is 14kt white gold with a center .15 carat Old European Cut Diamond. The necklace is on
Category

Vintage 1920s American Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

Art Deco 15 Carat Colombian Emerald Sapphire Diamond Pendant Necklace Platinum
Located in Lisbon, PT
Art Deco Certified 15 Carat Colombian Emerald Sapphire Diamond Pendant Necklace Platinum 1930s
Category

Vintage 1940s Unknown Art Deco Pendant Necklaces

Materials

Diamond, Emerald, Sapphire, Platinum

.15 Carat Round Brilliant Diamond Bar Necklace, 14 Karat Yellow Gold Adjustable
Located in Greensboro, NC
, 15/16" (23.4mm) wide (from stationary bail) Chain Style: Diamond Cut Cable Chain: length 16 3/4" - 18
Category

21st Century and Contemporary Unknown Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

15 Carat Georgian Diamond Pendant Brooch
Located in Miami, FL
likely part of a larger set. It could have been a part of a tiara or larger necklace. They used to make
Category

Antique 1850s Georgian Drop Necklaces

Materials

Diamond, 14k Gold, Rhodium, Silver

15 Carat Aquamarine Diamond Drop Platinum Pendant
Located in Napoli, NA
from precious Platinum. Circa 1940 CONDITION: Pre-owned - Excellent GEM STONES: Aquamarine 15 carats
Category

Vintage 1940s Pendant Necklaces

Materials

Aquamarine, Diamond, Platinum

15-Carat Heart Shape Aquamarine Diamond 18 Karat Two Tone Gold Pendant Necklace
Located in Boca Raton, FL
single cut diamonds weighing approximately .17 carat totalw weight. The pendant measures .75 x 1.25
Category

Early 20th Century American Art Deco Pendant Necklaces

Materials

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

Antique Edwardian 15 Carat Aquamarine Diamond platinum Pendant
Located in Carmel-by-the-Sea, CA
Made circa 1910 in platinum over 18 karat yellow gold, the center is set with a 15 carat faceted
Category

Vintage 1910s Edwardian Pendant Necklaces

Materials

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

Victorian Rose Cut Diamond 15 Carat Gold Pendant
Located in Chipping Campden, GB
Incredibly sweet 15ct gold pendant decorated with a cross set with diamonds. Heart Drop Including
Category

Antique 1860s British Victorian Pendant Necklaces

Materials

Diamond, Gold

Round Diamond Disk Charm w 19 Diamonds .11 Carats, 15 mm Diameter Pendant
By Five Star Jewelry
Located in Austin, TX
: Diamond Disc Charm Measurements: 15 millimeters Diamond Number: 19 Diamond Shape: Round Brilliant Diamond
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

.15 Carat Round Natural Diamonds Star Pendant 14 Karat
Located in New York, NY
Diamond Star Pendant Round, Brilliant Cuts. Diamonds: .15ct. Vs-2 clarity, G-color 14kt
Category

2010s American Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

AGL Certified Minor 15 Ct Colombian Emerald Diamond Pendent/Necklace 18 K Y Gold
Located in New York, NY
AGL Certified" Minor "15 Ct Colombian Emerald Diamond Pendent/Necklace 18 K Y Gold large
Category

20th Century Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold, Gold

Morganite Pendant 15 Carat Gem Multicolor Diamonds Total 1.66 Ct Made in Italy
Located in Viena, Viena
our productions in 18 carat gold in loving small series with the best diamond qualities. In Valenza
Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, Morganite, 18k Gold, Rose Gold

Matching Custom Cut Star Shape Diamond Bracelet and Necklace
Located in New York, NY
bracelet has 130 diamonds weighing approximately 15 carats. The necklace has 245 diamonds weighing
Category

2010s American More Bracelets

Materials

Diamond, 18k Gold, White Gold

11.01 Carat Natural Diamond Tennis Necklace in 14K Yellow Gold 15"
Located in Great Neck Plaza, NY
A stunning 11.01 carat natural diamond tennis necklace crafted in luxurious 14K yellow gold. This
Category

2010s American Modern Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

15 Carat Green Tourmaline and 1.1 Carat Diamond Pendant / Necklace 18 Karat Gold
Located in New York, NY
Approximately 15 Carat Green Tourmaline & Diamond Pendant / Necklace 18 Karat Gold. This
Category

2010s Pendant Necklaces

Materials

Diamond, Tourmaline, 18k Gold, Gold

Platinum 15 Carat Round Cut Diamonds by the Yard Necklace
Located in New York, NY
Extra long this Platinum 15 carat Round Cut Diamonds by the Yard Necklace will sure to be your
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Diamond, Platinum

15 Carat Round Brilliant Cut Diamonds White Gold Tennis Necklace
By Antinori Fine Jewels
Located in Chicago, IL
15 ct Round Brilliant Cut Diamond Riviera Diamond Line Necklace in 14K White Gold 17". The
Category

2010s Italian Contemporary Multi-Strand Necklaces

Materials

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

Platinum 15 Carat Round Cut Diamonds by the Yard Necklace
Located in New York, NY
as new every time. We love this chain it is extra-long, made in platinum set with 15 carats of Round
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Diamond, Platinum

15 Carat Round Shape Pink Tourmaline and 4Ct Diamond Pendant Necklace 18K Gold
Located in New York, NY
15 Carat Round Shape Pink Tourmaline & Diamond Pendant Necklace 18 K Gold This spectacular
Category

2010s Pendant Necklaces

Materials

Diamond, Tourmaline, 18k Gold

1.40 Carat 15 Stations Diamond by the Yard Necklace 14 Karat White Gold
Located in Great Neck Plaza, NY
15 STATIONS DIAMOND STATION NECKLACE BEZEL-SET IN 14K WHITE GOLD (1.40 CTW) PRODUCT DETAILS
Category

2010s American Chain Necklaces

Materials

Diamond, White Diamond, 14k Gold, White Gold

15 Carat Morganite and Diamond Gold Pendant Enhancer Necklace Fine Jewelry
Located in Montreal, QC
Simply Beautiful! Finely detailed Square Morganite and Diamond Gold Pendant Enhancer. Securely Hand
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Morganite, Gold, 14k Gold, Rose Gold

LB Exclusive White Gold .15 Carat VS1 G Color Diamond Dragonfly Pendant Necklace
By LB Exclusive
Located in Southampton, PA
This LB Exclusive necklace is crafted from 14K white gold, boasting a 15” chain with spring ring
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, 14k Gold, White Gold

Edwardian 15 Carat Gold Pendant with Diamond
Located in Chipping Campden, GB
Incredibly sweet 15ct gold pendant set with a diamond. The chain is decorative and so pretty
Category

Antique Early 1900s British Edwardian Pendant Necklaces

Materials

Diamond, Gold

14k White Gold .15 Carat Diamond Heart Pendant Necklace On 18" 14k Aurafin Chain
Located in Eagan, MN
diamond is 2 mm and totals .15 carats. The bail of the pendant is stamped "14k" and also marked with a
Category

21st Century and Contemporary Unknown Art Deco Choker Necklaces

Materials

Diamond, 14k Gold, White Gold

Victorian Diamond and 15 Carat Gold Locket Pendant
Located in Chipping Campden, GB
The diamond set in a gorgeous star setting at the centre of the locket measures 15pts and adds a
Category

Antique 1880s British Victorian Pendant Necklaces

Materials

Diamond, 15k Gold

Extraordinary 15 Carat Morganite White Gold and Diamond Pendant
By Aria Jewelry Design
Located in Raleigh, NC
enhancer accented with little white sparkling diamonds. It is approximately 1 inch long. More from this
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Morganite, 14k Gold, White Gold

Aaron Basha 18 Karat Diamond Link Chain 16" Yellow Gold .15 carat
By Aaron Basha
Located in Laguna Hills, CA
estimated weight of .15 carat. Quality is VS clarity and G color Aaron Basha designer hallmarked 6.3 grams
Category

21st Century and Contemporary American Contemporary Chain Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

14k Y Gold 15 Carat Fantasy Cut Amethyst .11 Carat Diamond Handmade Pendant
Located in Eagan, MN
gallery style and has a locking hinged bail. The amethyst is 25 x 15 mm totaling 15 carats and the grade
Category

21st Century and Contemporary Unknown Art Deco Choker Necklaces

Materials

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

Vintage Red Carpet 15 Carat Morganite and Diamond Gold Statement Pendant
Located in Montreal, QC
securely Hand set Morganite, weighing approx. 15 Carats. Enhanced with Diamonds, approx. 0.12tcw. Hand
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, Morganite, Gold, 14k Gold, Yellow Gold

Antique Victorian Seed Pearl and Diamond Yellow Gold Necklace
Located in Jesmond, Newcastle Upon Tyne
An exceptional antique Victorian 1880s seed pearl and 0.49 carat diamond, 15 karat yellow gold
Category

Antique 1880s Unknown Victorian Link Necklaces

Materials

Diamond, Pearl, Gold, 15k Gold, Yellow Gold

15 Carat Diamond Riviere Necklace
Located in Manchester, NH
This gorgeous diamond necklace is not your typical riviere. Set with about 15cttw of round
Category

Early 2000s American More Necklaces

Materials

Diamond, 14k Gold

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15 Carat Diamond Necklace For Sale on 1stDibs

On 1stDibs, you can find the most appropriate 15 carat diamond necklace for your needs in our varied inventory. Frequently made of Gold, White Gold and Yellow Gold, this item was constructed with great care. You can easily find a 153 antique edition and 225 modern creations to choose from as well. You’re likely to find the perfect 15 carat diamond necklace among the distinctive items we have available, which includes versions made as long ago as the 18th Century as well as those produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. There have been many well-made iterations of the classic 15 carat diamond necklace over the years, but those made by LB Exclusive, TJD and Roman Malakov are often thought to be among the most beautiful. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and pear cut cut versions available here, too. When shopping for a 15 carat diamond necklace, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a 15 Carat Diamond Necklace?

The price for a 15 carat diamond necklace starts at $145 and tops out at $140,000 with these necklaces, on average, selling for $4,169.

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.  

Finding the Right Necklaces for You

We are fortunate to know much of the world’s long and dazzling history of necklaces, as this type of jewelry was so treasured that it was frequently buried with its owners. Today, Van Cleef necklaces, Tiffany necklaces and Cartier necklaces are some of the most popularly searched designer necklaces on 1stDibs.

Lapis lazuli beads adorned necklaces unearthed from the royal graves at the ancient Iraqi civilization of Sumer, while the excavation of King Tut’s burial chamber revealed a sense of style that led to a frenzy of Art Deco designs, with artisans of the 1920s seeking to emulate the elegant work crafted by Ancient Egypt’s goldsmiths and jewelry makers. 

In ancient times, pendant necklaces worn by royalty and nobles conferred wealth and prestige. Today, wearing jewelry is about personal expression: Luxury diamond necklaces exude confidence and can symbolize the celebratory nature of a deep romantic relationship, while paper-clip chain-link necklaces designed by the likes of goldsmith Faye Kim are firmly planted in the past as well as the present. Kim works exclusively with eco-friendly gold, and these fashionable, fun accessories owe to the design of 19th-century watch fobs. 

For some, necklaces are thought of as being a solely feminine piece, but this widely loved accessory has been gender-neutral for eons. In fact, just as women rarely took to wearing a single necklace during the Renaissance, men of the era layered chains and valuable pendants atop their bejeweled clothing. In modern times, the free-spirited hippie and counterculture movements of the 1960s saw costume-jewelry designers celebrating self-expression through colorful multistrand necklaces and no shortage of beads, which were worn by anyone and everyone. 

Even after all of these years, the necklace remains an irrefutable staple of any complete outfit. Although new trends in jewelry are constantly emerging, the glamour and beauty of the past continue to inform modern styles and designs. In a way, the cyclical history of the necklace differs little from its familiar looped form: The celebrated French jewelry house Van Cleef Arpels found much inspiration in King Tut, and, now, their Alhambra collection is a go-to for modern royals. Vintage David Webb necklaces — whose work landed him on the cover of Vogue in 1950, two years after opening his Manhattan shop — were likely inspired by the ornamental styles of ancient Greece, Mesopotamia and Egypt

On 1stDibs, browse top designers like Dior, Chanel and Bulgari, or shop by your favorite style, from eye-catching choker necklaces to understated links to pearl necklaces and more. 

Questions About 15 Carat Diamond Necklace
  • 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 ExpertOctober 30, 2024
    How much a 15-carat diamond is worth varies. Prices may be in the hundreds of thousands or millions. When evaluating diamonds, experts consider the cut, clarity and color, as well as the carat weight. On 1stDibs, explore a wide variety of diamond jewelry from some of the world's top sellers.
  • 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.

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With more than 100 carats of diamonds, this vintage stunner converts into different styles, making it as versatile as it is breathtaking.

[Survey] Two-Thirds of Jewelry Gift Recipients Don’t Want to Be Surprised

Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.

Next-Level Pearls That Go Well Beyond the Expected

Organic shapes, surprising textures, shimmering colors and inventive embellishments take the new generation of pearl jewelry from classic to cutting-edge.

7 Vibrant Jewels for a Breezy Late-Summer Wardrobe

Soak up the pleasures of the season with a these bold gems.

Whether Worn Alone or Layered, These Chain Link Necklaces Are Trending

Learn more about the stylish links that have passed the test of time.

Meet the Dapper, Mustachioed Parisian Who’s Tops in Crafting Enticing Jewels

After more than a decade creating the iconic Lanvin gems of the Alber Elbaz years, designer Elie Top dove into the world of fine jewelry, mixing silver and gold to create his own striking, timeless look.