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Diamond Necklaces

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Gemstone: Diamond
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

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

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

Vintage B.Zero1 Diamond Pendant Necklace Set in 18k White Gold
Located in London, GB
A beautiful vintage Bvlgari B.Zero1 diamond pendant necklace set in 18k white gold. From Bvlgari's current B.Zero1 collection, the pendant is depicts the iconic ring motif. The rin...
Category

2010s Italian Modern Diamond Necklaces

Materials

Diamond, Gold, 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

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

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

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

12 Carat Riviera Diamond Tennis Necklace
Located in Rome, IT
White Gold Karat 14K Four-prong setting riviera tennis necklace Graduated tennis necklace with round diamonds four-prong set.
Category

2010s Italian Modern Diamond Necklaces

Materials

Diamond, White 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

Van Cleef & Arpels 18K White Gold Diamond Cross Necklace
Located in Southampton, PA
A dainty cross-shaped pendant measuring 0.35 long by 0.25 wide is covered in sparkling Diamonds on this Van Cleef & Arpels necklace. An elegant addition to any jewelry collection, it...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 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

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

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

Antique Halo Pendant Emerald Diamond solid 14K Gold / 2.25gr
Located in SE
Emeralds and Diamonds, old Pendant set in solid 14 ct Greenish Yellow Gold. Ca. early XX cent, likely German or Danish, it was in possession of Danish /German family. Measures 25 m...
Category

1930s German Art Deco Vintage Diamond Necklaces

Materials

Diamond, Emerald, 14k Gold, Silver

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

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

10K Yellow Gold Pave Diamond Miami Cuban Link Chain 5.80MM
Located in Houston, TX
Gender: Ladies Metal Type: 14K White Gold Length: 22.00 Inches Width: 5.80 mm Weight: 35.94 grams Ladies 10K yellow gold cuban link chain. The metal was tested and determined to ...
Category

21st Century and Contemporary Unknown Diamond Necklaces

Materials

Diamond, Gold, 10k Gold, Yellow 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

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 10.78 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 10.47 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

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

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

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

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

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

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

NWT $28, 500 18KT Gold Fancy Large Glittering Blue Sapphire Diamond Necklace
Located in New York, NY
The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and Sparkling Magnificent Fancy Cut Sapphires and Diamond Necklace. Necklace contains ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

BVLGARI Serpenti Viper White Gold Diamond Necklace 348165
Located in New York, NY
Take center stage in this show-stopping Bulgari Serpenti Viper Necklace. Undoubtedly one of the Italian jewelry house’s most exquisite recent Se...
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Yellow Gold Diamond Heart Pendant - 10k Baguette .25ctw Love
Located in Greensboro, NC
Metal Content: 10k Yellow Gold Stone Information Natural Diamonds Carat(s): .25ctw Cut: Baguette Color: H - I Clarity: SI2 - I1 Total Carats: .25ctw Theme: Heart, Love Measureme...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 10k Gold, Yellow Gold

Tahiti Pearl Rose Gold and Diamonds drop pendant
Located in PARIS, FR
Pendant composed of a drop-shaped Tahitian pearl in a changing gray color encrusted with 2 small bezel-set diamonds in pink gold and 2 other small motifs in pink gold, and mounted on...
Category

2010s French Diamond Necklaces

Materials

Diamond, Pearl, Rose Gold

0.88 ct Total Weight Round Brilliant Cut Diamond Cross Pendant
Located in Rome, IT
0.88 ct Total Weight Round Brilliant Cut Diamond Cross Pendant in 14k Yellow Gold. The cross weighs 3 grams, measuring 22.7 x 16.7 x 4 mm. There are 11 Natural Round Brilliant Cut d...
Category

2010s Unknown Contemporary Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Diamond Pendant Necklace in White Gold
Located in Bloomington, MN
Deco Inspired Diamond Pendant Necklace in White Gold Introducing this stunning pendant with a 3 strand chain, expertly crafted in 14k white gold. This eye-catching pendant features ...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

Natural Yellow Round Diamond .63 Carat TW Gold Heart Necklace
Located in New York, NY
RareGemWorld's classic diamond necklace. Mounted in a beautiful 18K Yellow and White Gold setting with natural round yellow diamond melee complimented by natural round white diamond ...
Category

21st Century and Contemporary American Contemporary Diamond Necklaces

Materials

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

Important Opal Necklace Set With Diamonds 60 Carats Total 19.5 Inches
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP Condition: Excellent Opals = 54 Carats Diamonds = 6.48 Carats (Color: F-J, Clarity: VS-I) Metal: Silver & 14K Yellow Gold Necklace Length: ...
Category

21st Century and Contemporary Art Deco Diamond Necklaces

Materials

Diamond, White Diamond, Opal, Gold, 14k Gold, Yellow Gold, Silver

18 Karat Yellow Gold and Pearl and Diamond Pendant/Enhancer #17577
Located in Washington Depot, CT
18 Karat Yellow Gold and Pearl and Diamond Pendant/Enhancer- This lovely pendant features one white pearl (10 mm) and one round brilliant cut diamond set in classic 18K yellow gold....
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Pearl, 18k Gold, Yellow Gold

Natural Yellow Heart Diamond 0.90 Carat TW Gold Heart Pendant
Located in New York, NY
RareGemWorld's intriguing diamond pendant. Mounted in a beautiful 18K Yellow and White Gold setting with a natural heart cut yellow diamond. The yellow diamond is surrounded by round...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

18k White Gold 1.92ctw Large Diamond Open Slide Heart Pendant on 16" Bead Chain
Located in Montclair, NJ
--Stone(s):-- (16) Natural Genuine Diamonds - Round Brilliant Cut - Prong Set - VS2-I1 Clarity - I-K Color Total Carat Weight: 1.92 (approx.) Material: Solid 14k White Gold Pendant ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, White Gold

Morganite Pendant Necklace 2.38 Carats 14K Rose Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Morganite = 2.20 Carats 37 Diamonds = 0.18 Carats Metal: 14K Rose Gold Pendant Dimensions: 17 x 11 mm
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

Art Deco Style White Diamond Tanzanite Emerald Yellow Gold Pendant Necklace
Located in Naples, IT
For any problems related to some materials contained in the items that do not allow shipping, please contact the seller with a private message to solve the problem. We can ship every...
Category

Mid-20th Century Italian Art Deco Diamond Necklaces

Materials

Diamond, White Diamond, Emerald, Tanzanite, 14k Gold, Yellow Gold

Tanzanite Heart Pendant Necklace Diamond Setting 2.28 Carats 14K Yellow Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Tanzanite = 2.08 Carat 40 Diamonds = 0.20 Carats Metal: 14K Yellow Gold Dimensions: 19 x 11.2 mm
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, White Diamond, Tanzanite, Gold, 14k Gold, Yellow Gold

Diana M 18.00 Ct Aquamarine Art Deco Necklace
Located in New York, NY
Platinum and 18 kt white gold Art Deco diamond necklace featuring an 18.00 ct emerald cut aquamarine center with approximately 10.00 cts of GHI VS-SI round diamonds
Category

1930s Art Deco Vintage Diamond Necklaces

Materials

Aquamarine, Diamond, 18k Gold, Platinum

Louis Vuitton 18k Rose Gold Diamond Lv Pendant Adjustable Link Chain Necklace
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Diamond - Round Brilliant Cut - Bezel Set Material: Solid 18k Rose Gold Weight: 4.06 Grams Chain Type: Cable Link Chain Length: Adjustable at 15 & ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Rose Gold

18K solid gold Egyptian scarab charm - good luck amulet - Lucky beetle pendant
Located in Antwerp, BE
For sale is this unique and powerful Egyptian charm which is one of our new favourites! It is crafted in 18 ct yellow gold and depict a magnificent scarab,...
Category

Late 20th Century Egyptian Retro Diamond Necklaces

Materials

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

NWT $22, 500 18KT Gold Fancy Large Glittering Rainbow Sapphire Diamond Necklace
Located in New York, NY
The Following Item we are offering is this Rare Important Radiant 18KT Gold Gorgeous Glittering and Sparkling Magnificent Fancy Rainbow Sapphire and Diamond Necklace. Necklace contai...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Sapphire, Gold, 18k Gold

Natural Ethiopian Opal Pendant Necklace Diamonds 3.59 Carats 14K Yellow Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Ethiopian Opal = 3.50 Carats 6 Diamonds = 0.09 Carats Metal: 14K Yellow Gold Pendant Dimensions: 28 x ...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

Dazzling 2.58ct Diamonds Heart-Shaped Halo Necklace in 18k White Gold - IGI Cert
Located in רמת גן, IL
Dazzling 2.58ct Diamonds Heart-Shaped Halo Necklace in 18k White Gold - IGI Certified This exquisite halo necklace features a stunning heart-shaped diamond with a total carat weight...
Category

2010s Israeli Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Natural Ethiopian Opal Pendant Necklace Diamond Setting 3.63 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP All Gemstones are Natural Ethiopian Opal = 3.35 Carats 56 Diamonds = 0.28 Carats Metal: 14K Yellow Gold Pendant Dimensions: 33 x...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

Yellow Gold Lapis Lazuli & Diamond Crescent Moon & Star Necklace 14k Adjustable
Located in Greensboro, NC
Metal Content: 14k Yellow Gold & 14k White Gold Stone Information Natural Lapis Lazuli Color: Blue Natural Diamonds Carat(s): .08ctw Cut: Round Brilliant Color: G Clarity: VS2 - SI...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Lapis Lazuli, 14k Gold, White Gold, Yellow Gold

14K Yellow Gold Angel Cherub Pendant Charm with Natural Diamonds Estate
Located in Puyallup, WA
Presenting a timeless piece - 14K Yellow Gold Angel Cherub Pendant Charm sparkling with Natural Diamonds. Emanating divine charm, this piece radiates warmth and faith. Expertly craft...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, Yellow Gold

0.90ctw Diamond Circle Pendant 14k White Gold 18" Rope Chain
Located in McLeansville, NC
Gemstone Information: - Natural Diamonds - Total Carats - 0.90ctw Cut - Single Color - I - J Clarity - I2 - I3 Metal: 14k White Gold Weight: 4.3 Grams Stamps: 14k Chain Style: Rope...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

New Handmade 18k Gold Top Silver Natural Rose Cut Diamond Heart Pendant Necklace
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 24.7 grams. Totally is diamond 8.13 ct. The diamond is has H-I-J-k color and vs-s1-s2-s3 clarity. Total lenght is chain 45 cm. Please contact ...
Category

2010s Turkestan Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Silver

18k Gold Natural Diamond And Ruby Decorated Cat Pendant Necklace
Located in Fatih/İstanbul, 34
In very good condition. Total weight is 6.4 grams. Totally is diamond 0.14 carat. The diamond is has G-H color and s1 clarity. Totally is ruby 0.10 carat. Total lenght is chain 50 cm...
Category

2010s Turkish Modern Diamond Necklaces

Materials

Diamond, Ruby, 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.

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