Skip to main content

Diamond Necklaces

315
34,199
391
to
5,663
23,602
6,674
2
92
759
5,586
28,149
232
176
223
127
79
244
292
347
531
488
49
897
479
442
403
370
23,259
11,147
184
31,463
15,623
13,677
10,698
10,005
34,590
6,459
5,673
5,309
3,783
15210
4432
2127
1875
1819
to
8,707
7,483
1,625
1,081
757
663
429
318
153
129
121
82
72
29
15
7
5
4
Gemstone: Diamond
Cartier 18K White Gold Diamond Heart Necklace
Located in Southampton, PA
Displaying unmatched elegance, Cartier's diamond pave heart necklace is so easy to love. It features a radiant heart-shaped pendant in 18K white gold, covered with round brilliant di...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Bespoke 10 Carat Round Brilliant Cut Diamonds White Gold Tennis Necklace
Located in Rome, IT
Indulge in the epitome of elegance with our exquisite 10 Carat Round Brilliant Cut Diamonds White Gold Tennis Necklace. This masterpiece, crafted with precision in Italy, showcases t...
Category

2010s Italian Contemporary Diamond Necklaces

Materials

Diamond, White Gold

Diamond Clover Roller Pendant Chain Necklace for Her in 14k Solid Yellow Gold
Located in Houston, TX
Diamond Clover Roller Pendant Chain Necklace in 14K gold studded with round cut diamond. This stunning piece of jewelry instantly elevates a casual look or dressy outfit. April birt...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Diamond and Black Enamel Dangly Turquoise Necklace in 18k White Gold
Located in Honolulu, HI
Item Specifications: Metal: 18K White Gold Necklace Weight: 6 grams Diamond Carat Weight: ~0.15 carats ​ ​Turquoise Diameter: 4.24 mm Chain Length: 18" Clasp: Lobster Pendant M...
Category

Late 20th Century Unknown Modern Diamond Necklaces

Materials

Diamond, Turquoise, Enamel, 18k Gold, White Gold

Gin & Grace 14K White Gold Zambian Emerald Pendant with Diamonds For Women
Located in New York, NY
Decorate yourself in elegance with this Pendant is crafted from 14-karat White Gold by Gin & Grace. This Pendant is made up of 7x5 mm Pear-Cut Emerald (1 pcs) 0.65 carat and Round-cu...
Category

21st Century and Contemporary Chinese Art Deco Diamond Necklaces

Materials

Diamond, Emerald, 14k Gold, White Gold

Vintage LeVian Garnet & Diamond Pendant Necklace in Rose Gold
Located in Bloomington, MN
Vintage LeVian Garnet & Diamond Pendant Necklace in Rose Gold This LeVian Garnet Pendant necklace is beautifully crafted in 14kr Rose Gold. The necklace...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, Garnet, 14k Gold, Rose Gold

Eighteen Karat Yellow Gold Pendant Necklace with Amethyst and Rose Quartz
Located in Berlin, DE
This contemporary Pendant Necklace is made of 18 karat yellow gold with cabochon amethyst and rose quartz. We work with german gems company, that is in the market since the 19th cent...
Category

21st Century and Contemporary German Contemporary Diamond Necklaces

Materials

Quartz, Green Beryl, Tourmaline, Sapphire, Garnet, Diamond, Beryl, Ameth...

Vintage Snake Serpent Platinum and Gold Diamond Statement Pendant Necklace
Located in Montreal, QC
Simply Beautiful! Featuring a Coiled Serpent Snake Platinum and Yellow Gold Pendant Necklace. Centering a Securely Hand set Coffee Diamond, weighing approx. 0.50 Carat in a Coiled Se...
Category

Late 20th Century Modernist Diamond Necklaces

Materials

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

Important Emerald Pendant Necklace With Diamonds 20 Carats 18K White Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Emerald = 9.80 Carats Diamonds = 10.40 Carats Metal: 18K White Gold Length: 16 Inches
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

NWT $105, 000 18KT Gold Magnificent Large South Sea Pearl Fancy Diamond Necklace
Located in New York, NY
The Following Item we are offering is this Beautiful Rare Important 18KT White Gold and South Sea Pearl and Diamond Necklace. Necklace is comprised of Beautiful OUTSTANDING MAGNIFICE...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Natural Pearl, South Sea Pearl, Gold, 18k Gold

14.4 cts of Tanzanite Pendant
Located in New York, NY
Introducing a breathtaking pendant that exemplifies modern elegance and bold sophistication. This exquisite piece features two stunning oval-shaped tanzanites, with a total weight of...
Category

2010s Indian Modern Diamond Necklaces

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Natural 17.59 Carat Diamond Open Choker Necklace 18 Karat White Gold Jewelry
Located in IN
Cast from 18-karat gold, these exquisite necklace are handset with 17.59 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusive pi...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

15.37 Carat Pave Diamond Cuban Link Chain Necklace 14 Karat In Stock
Located in Boca Raton, FL
Everyone should own a Cuban link necklace in their life. This particular necklace is made from 14 karat white gold and is pave set with 352 round brilliant cut diamonds that are near...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Panthère De Cartier Necklace
Located in New York, NY
Detachable tassel pendant necklace expressed in Cartier's signature Panther motif. Eyes set with pear-shaped emeralds. Nose and studded collar of polished onyx, and black lacquer spo...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald, Onyx, 18k Gold, Yellow Gold

Natural Green Jadeite and Diamond Pendant in 18K Gold with Necklace
Located in Macau, MO
A translucent green natural jadeite pendant in perfect round shape, decorated with round brilliant-cut diamonds, weighing 0.137 carats in total, mounted in 18 karat white gold. The...
Category

2010s Asian Contemporary Diamond Necklaces

Materials

Diamond, Jade, 18k Gold

Van Cleef & Arpels Vintage Alhambra White Gold Diamond Paved Pendant Necklace
Located in Banbury, GB
SKU CT-2292 Comes With Full Set (Box + Card) Date 2019 Model VCARA46100 Serial Number JB****** Metal 18k White Gold Stones Diamond Weight 5.8 g Length 42 cm Condition Excellent _____...
Category

2010s French Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Vintage Natural Ruby & Diamond Pendant Suspended from 24" 18ct White Gold Chain
Located in London, GB
A true embodiment of elegance and sophistication. This captivating piece showcases a stunning vintage diamond and ruby pendant with dazzling round brilliant cut diamonds and oval rub...
Category

21st Century and Contemporary British Art Deco Diamond Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

Mabe Pearl Gold Diamond Pendant Necklace
Located in Darnestown, MD
A huge mabe pearl (approximately 25 mm in diameter) is banded with gold in this unusual pendant necklace. One side of the double layer banding, including the hanging loop, is filled ...
Category

1980s French Modern Vintage Diamond Necklaces

Materials

Diamond, Pearl, Gold, 18k Gold

Yellow Gold Amethyst Diamond Omega Slide Pendant - 14k Pear 1.37ctw
Located in Greensboro, NC
Metal Content: 14k Yellow Gold Stone Information Natural Amethyst Carat(s): 1.24ct Cut: Pear Color: Purple Natural Diamonds Carat(s): .13ctw Cut: Round Brilliant Color: J - K Clar...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Amethyst, Diamond, 14k Gold, Yellow Gold

Red Coral Bead 18 Karat Yellow Gold Butterfly Clasp Necklace & Earrings Set
Located in Westport, CT
Double-strand graduated red coral bead necklace featuring 133 polished round coral beads measuring from 5 to 15 mm each. This estate, natural coral necklace is paired with a handmade...
Category

Late 20th Century Diamond Necklaces

Materials

Coral, Diamond, Gold, 18k Gold, Yellow Gold

David Webb Gold Coin Necklace Diamond Veinte Pesos
Located in Beverly Hills, CA
Designer: David Webb Materials: 18K Yellow Gold & Platinum Gemstone: Round Brilliant Cut Diamond Weight: 57.8 grams Measurement: Chain - 15" long; Pendant - diameter - 1" Hallmarks: David Webb, 18K, Plat Product details: An 18k gold and platinum necklace by David Webb featuring a twenty pesos (Veinte Pesos) coin dated 1959. The coin is framed in gold and features two platinum and diamond loops, connecting the pendant to the chain. The latter matches the color of the coin’s gold, creating a unified piece. The chain is curb link with the oval elongated links. 
This Viente pesos necklace...
Category

Late 20th Century Unknown Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

1.42 Carat Diamond Drop Necklace in 14K Yellow Gold 24"
Located in Great Neck, NY
Elevated and elegant piece to add to your collection. 1.42 carats all natural diamonds in a drop pendant set in 14K yellow gold. 29 pieces, average I-SI quality, 2.6mm, 4.94 grams, ...
Category

2010s American Modern Diamond Necklaces

Materials

Diamond, Yellow Gold

0.52 Carats Single Station Diamond By The Yard Necklace in 14K White Gold
Located in Great Neck, NY
Minimalist and elegant single station diamond by the yard necklace in 14K white gold. Single natural diamond, F-VS2 quality, 18 inch length. *Free shipping within the U.S.*
Category

2010s American Modern Diamond Necklaces

Materials

Diamond, White Gold

Classic Cross Black Diamond White 14k Gold Pendant for Her
Located in Montreux, CH
White Gold 14K Cross (Same Model with Black Diamond and Blue Sapphire Available) Diamond 68-RND-0,2-G/VS1A Blue Sapphire 16-0,37 ct Weight 1,23 grams I...
Category

2010s Swiss Modern Diamond Necklaces

Materials

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

Contemporary 3 Diamond Oval Pendant Necklace on Wire Chain 14 Karat White Gold
Located in Scottsdale, AZ
This gorgeous modern pendant, artfully designed with three bezel-set diamonds, is elegantly suspended on a wire chain and set in 14 karat white gold. This contemporary piece showcase...
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

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

1.45 Carat Pear Diamond Choker Necklace 18 Karat White Gold Handmade Jewelry
Located in IN
Cast from 18-karat White gold, these exquisite choker are handset with 1.45 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusive...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

16" Multi Strand Pearl Necklace W/ Plat W/ Gold Diamond & Emerald Clover Clasp
Located in Montclair, NJ
--Stone(s):-- Numerous Genuine Freshwater Cultured Pearls - Bead Shape - Off White Color w/ fine luster - 4-4.5mm (approx.) (82) Natural Genuine Diamonds - Single & Transitional Cut ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald, Pearl, Gold

Tiffany & Co. Platinum 1.50ct Diamond Necklace
Located in Southampton, PA
Sparkling Diamonds with a total weight of 1.50 carats elevate this simple, elegant Tiffany & Co. necklace. Suspended from a 16 chain, a Platinum pendant measuring 0.75 long by 0.85 m...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Platinum

Mughal Magnificent Traditional Bead & Cabochon Multi Color Vintage Necklace
Located in New York, NY
Mughal Magnificenct Traditional Bead & Cabochon Multi Color Vintage Necklace Jadau Traditional Kundan Synthetic stones in Yellow Gold tone, its not gold Base Metal : metal Metal P...
Category

1990s Diamond Necklaces

Materials

Diamond, Emerald, 18k Gold

Fashion Diamond Pendant 0.15CT 14K Yellow Gold
Located in New York, NY
We are excited to present our exquisite fashion pendant necklace. This timeless and elegant piece is designed to add the perfect amount of sparkle to any outfit. The necklace is made...
Category

21st Century and Contemporary North American Modern Diamond Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Allure Diamond Lariat Necklace
Located in Austin, TX
Add this adorable Allure Diamond Necklace to your favorite collection. This is a stunner.
Category

2010s Indian Art Deco Diamond Necklaces

Materials

Diamond, Onyx, 18k Gold, White Gold

14K Yellow Natural Emerald & 1 1/4 CTW Natural Diamond 18" Necklace
Located in Dublin, IE
Weight: 2.7683 DWT (4.31 grams) Chain Length: 18 In Primary Stone Count: 1-stone Pendant Dimensions: 35.17x15.66 mm Chain Style: Cable Primary Stone Type: Natural Emerald Prong Count...
Category

2010s Irish Modern Diamond Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

BVLGARI Serpenti Viper Necklace White Gold Pavé Diamonds 360348
Located in New York, NY
Introducing the captivating BVLGARI Serpenti Viper Necklace 360348 in White Gold, a stunning embodiment of seduction and glamour by Bul...
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Allure Diamond Pearl Necklace
Located in Austin, TX
Express yourself with this beautifully designed Allure Diamond pearl Necklace.
Category

2010s Indian Art Deco Diamond Necklaces

Materials

Diamond, Pearl, 18k Gold, White Gold

Red Enamel and Diamond Pear Shaped Pendant Necklace
Located in Darnestown, MD
Versatile and unusual necklace that can be worn two different ways. The egg shaped pendant can be suspended from the gold chain or easily removed to have a gold chain with two links ...
Category

Late 20th Century Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, Enamel

1.45 Carat Pear Diamond Choker Necklace 18 Karat Yellow Gold Handmade Jewelry
Located in IN
Cast from 18-karat Yellow gold, these exquisite choker are handset with 1.45 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusiv...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Necklace and pendant set with sapphire and diamonds up to 0.15ct 18k white gold
Located in The Hague, ZH
18k white gold necklace with pendant set with sapphire and brilliant cut diamond. 0.15ct - F/G - VS/SI - 42 cm long detailed description: the necklace is 42 cm long and 1.3 mm wide...
Category

2010s Dutch Modern Diamond Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold

18K White Gold 14.25ct Diamond Curve Necklace
Located in Southampton, PA
A dynamic design makes this luxury necklace a showpiece that will constantly command attention. The curved 18K White Gold setting measures 16.5 long and beautifully showcases an impr...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Necklace and pendant set with rose diamonds up to 0.70ct 14k yellow gold
Located in The Hague, ZH
14k yellow gold necklace with pendant set with rose cut diamonds. 0.70ct - F/G - SI - 45 cm long Detailed description the necklace is 45 cm long and 1.0 mm wide The size of the pe...
Category

2010s Dutch Modern Diamond Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Diamonds Heart Pendant Yellow and White Gold
Located in Esch sur Alzette, Esch-sur-Alzette
The Diamonds Heart Pendant in Yellow and White Gold is a stunning expression of love and sophistication. Crafted from luxurious 18kt yellow and white gold, this pendant features a un...
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Antique 6.70ct Old Mine Cut Diamond & Black Enamel Pendant, 18k Yellow Gold
Located in New York, NY
An exquisite Victorian-era locket with a checkered board-style motif in black enamel and adorned with old mine-cut diamonds totaling approximately 6.70 carats. Crafted in 18k yellow ...
Category

1880s Unknown Victorian Antique Diamond Necklaces

Materials

Diamond, Gold, Yellow Gold, Enamel

14K Black Opal and Diamond Pendant with GIA Report
Located in Big Bend, WI
14k White gold pendant featuring a natural black opal and diamond accents. The GIA report #5231187940 states oval double cabochon natural black opal with play of color measuring 15.1...
Category

Late 20th Century Contemporary Diamond Necklaces

Materials

Diamond, Opal, Black Opal, Gold, 14k Gold, White Gold

1.00 Carat Round Diamond Red Ruby 18 Kt White Gold Tresor Skull Pendant Necklace
Located in London, GB
The contemporary and bespoke Skull pendant is a unique and striking piece of jewelry that is sure to stand out in any collection. With a total of 1.00 Carat of White Round Diamonds, ...
Category

2010s British Modern Diamond Necklaces

Materials

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

Fope Flex'It Pavé Diamond Popcorn Mesh Pendant Necklace in 18 Karat White Gold
By Fope
Located in Scottsdale, AZ
This stunning Fope Flex'It diamond pavé pendant necklace, an exquisite piece set in 18 karat white gold. This stunning necklace features a pavé diamond sliding pendant, showcasing a ...
Category

21st Century and Contemporary Unknown Contemporary Diamond Necklaces

Materials

Diamond, White Diamond, 18k Gold, White Gold

0.25cttw Round Cut Diamond Cross Pendant Necklace 14k White Gold
Located in New York, NY
This gorgeous diamond cross pendant is encrusted with 22 round brilliant cut diamonds weighing 0.25 carat. The Diamonds are very sparkly and of high quality beautifully set in a pron...
Category

2010s Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

European 14K Gold and Silver Rosette Diamond Pendant
Located in Big Bend, WI
European 14K and silver diamond pendant featuring a rosette of diamonds set in a silver top on a 14K white gold chain. There are 11 European cut diamonds weighing a total of about 1....
Category

Mid-20th Century Diamond Necklaces

Materials

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

18K White Gold 10.78 ct Diamond Tennis Necklace
Located in Southampton, PA
Your new favorite necklace. This jewel captures attention with its never-ending row of sparkle. The 18-long necklace features a line of round diamonds totaling 10.78 carats.This 18K ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

18K White Gold 10.82 ct Diamond Tennis Necklace
Located in Southampton, PA
A strand of diamonds you'll wear non-stop. This tennis bracelet features an 18-long line of round diamonds, each mounted securely on a four-prong white gold basket. With a streamline...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

18K White Gold 10.47 ct Diamond Tennis Necklace
Located in Southampton, PA
Your new favorite necklace. This jewel captures attention with its never-ending row of sparkle. The 18-long necklace features a line of round diamonds totaling 10.47 carats.This 18K ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

14K Yellow Gold Bird Motif Black Agate Pendant #17564
Located in Washington Depot, CT
14K Yellow Gold Bird Motif Stone Pendant Meticulously detailed 14K yellow gold black agate pendant featuring bird motif with jade, coral, and opal stones. Hallmark: 14K # of diam...
Category

20th Century Diamond Necklaces

Materials

Agate, Coral, Diamond, Jade, Opal, Gold, 14k Gold, Yellow Gold

NWT $58, 000 18KT Gold Rare Magnificent Fancy Flower Floral Diamond Necklace
Located in New York, NY
The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and Sparkling Diamond Necklace. Necklace Con...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Gold, 18k Gold

Natural 1.03 Carat Marquise Diamond Choker Necklace 18 Karat Yellow Gold Jewelry
Located in IN
Cast from 18-karat White gold, these exquisite choker are handset with 1.03 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusive...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Real 1.85 Carat Pear Diamond Snake Choker Necklace 18 Karat White Gold Jewelry
Located in IN
Cast from 18-karat Yellow gold, these exquisite choker are handset with 1.85 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusiv...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

New Made 18k Gold Natural Heart Cut Diamond And Brilliant Cut Diamond Pendant
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 2.4 grams. The main Heart Cut Diamond 0.70 ct. The side brilliant cut diamond totally 0.12 ct. The diamond is has generallh H color and vs cla...
Category

2010s Turkish Modern Diamond Necklaces

Materials

Diamond, 18k Gold

1.02 Carat Solitaire Pear Diamond Choker Necklace 18 Karat Rose Gold Jewelry
Located in IN
Cast from 18-karat rose gold, these exquisite choker are handset with 1.02 carats of sparkling diamonds. FOLLOW SPECTRUM JEWELS storefront to view the latest collection & exclusive ...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Sparkling Ruby Diamond Butterfly Necklace
Located in Austin, TX
This stunning butterfly design with rubies and diamonds elevates you to a whole new level. It makes a perfect gift for your loved one earrings & Ring are not included.
Category

2010s Indian Contemporary Diamond Necklaces

Materials

Diamond, Freshwater Pearl, Ruby, 14k Gold

Cultured South Sea pearl necklace set with 18kt gold diamond ball clasp
Located in Braintree, GB
Graduated Cultured South Sea pearl necklace set with 18kt gold ball clasp with round brilliant diamonds. Made after 2000 Dimensions - Necklace Length: 39.5 cm Largest pearl size: ...
Category

21st Century and Contemporary European Diamond Necklaces

Materials

Diamond, South Sea Pearl, Gold, 18k Gold

Natural real 9.80cts uncut cut diamonds in 18k gold necklace 9.5" inches long
Located in Delhi, DL
Elevate your style with the enchanting fusion of tradition and luxury embodied in our exquisite necklace. Crafted with the utmost care and attention to detail, this stunning piece fe...
Category

2010s Indian Artisan Diamond Necklaces

Materials

Diamond, 18k Gold

Shop Vintage and Antique Diamond Necklaces on 1stDibs

Whether you're pairing an elegant drop necklace with an evening gown for a fancy dinner or layering a solitaire pendant with your favorite gold or silver chains, you can count on the fact that antique diamond necklaces will elevate any ensemble.

Pendant necklaces worn by royalty and nobles conferred wealth and prestige in ancient times. Wearing jewelry has since become far more widespread, and today, personal adornment is all about expression: Luxury diamond necklaces — Cartier diamond necklaces, Harry Winston diamond necklaces and other iterations — exude confidence and can symbolize the celebratory nature of a deep romantic relationship. (Diamond lockets, for example, which feature a motif that first emerged in the 1800s, are frequently shaped like a heart.) 

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.

In the late 19th century, "King of Diamonds" Charles Lewis Tiffany — founder of famed luxury house Tiffany & Co. — purchased a 287-carat yellow diamond discovered in the Kimberely Mine in South Africa. The stone was the largest yellow diamond ever mined, and was fashioned by gemologist George Kunz into a cushion-cut brilliant of 128 carats. Kunz gave it a total of 90 facets: 48 on the pavilion, 40 on the crown, plus the table and culet. Breakfast at Tiffany’s fans may recognize the stone from promotional photos for the film — actress Audrey Hepburn wore it as part of the Jean Schlumberger-designed Ribbon Rosette necklace.

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. 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).

Grading aside, a beloved diamond necklace is going to deliver the perfect amount of sparkle and joy every time you put it on, whether it's an emerald and diamond necklace, a classic diamond choker or some other similar accessory.  

Find antique and vintage diamond necklaces today on 1stDibs.

Recently Viewed

View All