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Diamond Necklaces

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Item Ships From: USA
Gemstone: Diamond
Diana M. 14.42 Cts 4 Prong Diamond 14k White Gold 16.5" Diamond Tennis Necklace
Located in New York, NY
Custom 14 kt white gold, 16.5" 4 prong diamond tennis necklace 14.42 cts diamonds 118 stones 0.12 each Color FG SI clarity. Excellent cut
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, White Gold

Emerald Drop and Diamond Pendant Necklace in Platinum
Located in La Jolla, CA
Diamond & Emerald Drop Pendant Necklace in Platinum Emerald and Diamond Necklace features a 2.04 carat Emerald cut Natural Emerald, bezel set in Platinum, hanging from a Diamond med...
Category

21st Century and Contemporary North American Diamond Necklaces

Materials

Diamond, Emerald, Platinum

2.03 Carat 10 Station Diamond by the Yard Necklace 14 Karat Yellow Gold 16"
Located in Great Neck, NY
10 Station Diamond by the yard necklace set in Italian made 14K yellow gold. Total weight is 2.03 carats. Beautiful shiny stones. Length 16 inch 5.29 grams. Average K-,SI Natural D...
Category

2010s American Diamond Necklaces

Materials

Diamond, White Diamond, 14k Gold, Yellow Gold

Van Cleef & Arpels 18K White Gold 1.0ct Diamond Large Model Butterfly Charm
Located in Southampton, PA
Let this diamond-studded butterfly charm from Van Cleef & Arpels bring a flutter of beauty and sparkle to your day. The charm is crafted in 18K white gold and features a butterfly ou...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, White Gold, 18k Gold

GIA Certified Oval 8.19ct Emerald Pendant with Circular Bale in 14K Yellow Gold
Located in Los Angeles, CA
GIA Certified Oval Emerald Pendant with Circular Bale in 14K Yellow Gold
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Emerald, Yellow Gold

A stunning necklace of Turquoise sapphire and diamond
Located in New York, NY
An gorgeous flower design necklace made of 18-karat yellow gold, set with a natural 18.28-carat Turquoise, 0.40-carat sapphire and 0.33-carat diamonds . You are able to change the ne...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Cartier Paris Diamond Cross Pendant Neclklace
Located in Beverly Hills, CA
Cartier, Paris, Pave Diamond Cross 2 inches by 1 inch Est, 90 Diamonds 2.50 cts TW French Hallmarks of the workshop and Cartier & numbers plus other stamps see pictures. The Cross C...
Category

2010s French Diamond Necklaces

Materials

Diamond, 18k Gold

Solid 18k Yellow Gold Diamond Bezel Pendant
Located in Honolulu, HI
Item Specifications: Necklace Metal: 18k Yellow Gold Total Weight: 2.8 Grams Chain Length: 16" Pendant Diameter: 7.6 mm Diamond Count: 1 Diamond Color: G-H Diamond Clarity: S1...
Category

Mid-20th Century Unknown Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Gold, Yellow Gold

TJD 0.08 Carat Natural White Diamond 14 Karat White Gold Dog Paw Pendant
By TJD
Located in New York, NY
This dog paw pendant is a classic anytime choice. This pendant features round single cut 19 diamonds set in pave setting, shimmering with H-I color I-2 cla...
Category

2010s Indian Modern Diamond Necklaces

Materials

Diamond, White Diamond, White Gold, 14k Gold

LB Exclusive 14K White Gold 0.17ct Diamond Safety Pin Necklace PD4-16188W
Located in Southampton, PA
This luxurious necklace is simply unforgettable. Suspended from a delicate 18 chain, youll find a charming safety pin pendant measuring 0.75 long by 0.13 wide its also elevated by i...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, White Gold

Natural 2.33 Carat Princess Cut Yellow Sapphire & Diamond Halo Cross Pendant
Located in Miami, FL
This captivating 14k yellow gold cross pendant features a mesmerizing 2.33 carats total of princess cut yellow sapphires, encompassed by a white diamond halo. A cross motif pendant t...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

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

Diana M. Custom 9.60 cts Round Diamond 16" 18k White Gold Necklace
Located in New York, NY
Custom 18 kt white gold, 16" diamond necklace small and big diamonds 9.60 cts round diamonds 64 stone 0.15 each Color FG SI clarity. Excellent cut
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

18K Diamond Floral Pendant Necklace 1.5ct Round Brilliant Cut White Gold
Located in Holtsville, NY
Enhance your elegance with this exquisite Rhodium-Plated 18K White Gold Diamond Pendant Necklace, meticulously crafted to elevate your style. Adorn yourself with sophistication and ...
Category

2010s American Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold, Rhodium

Diamond Ying Yang pendant necklace 14KT gold large mens pendant necklace
Located in Boca Raton, FL
One of a kind pendant necklace made with 1.50ct black diamond and 1ct white diamond (Si clarity and G color) This Ying Yang pendant is made with whit...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Gold, 14k Gold

14K White Gold Diamond "Pear-shape" Pendant 2.50 Carat total weight
Located in Los Angeles, CA
14K White Gold Diamond "Pear-shape" Pendant 2.50 Carat total weight, on a 14k white gold 16 inch chain. Specifications: Metal: 14K White Gold Center Stone: 59 Diamonds 2.50 cts. Colo...
Category

21st Century and Contemporary American Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

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

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 10k Gold, White Gold, Yellow Gold

Yellow Gold Diamond Ribbon Heart Pendant - 10k Single Cut & Baguette .15ctw Love
Located in Greensboro, NC
Metal Content: 10k Yellow Gold & 10k White Gold Stone Information Natural Diamonds Carat(s): .15ctw Cut: Single & Baguette Color: I - J Clarity: I2 Total Carats: .15ctw Theme: Rib...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 10k Gold, White Gold, Yellow Gold

TJD 0.05 Carat Round Diamond 14 Karat White Gold Designer Wave Pendant Necklace
By TJD
Located in New York, NY
Elevate your look with the eye-catching wave design pendant. Hand-crafted by our in-house experts in 14 karat white gold and studded with 11 single cut round diamond set in pave sett...
Category

2010s Indian Modern Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

.925 Sterling Silver 1/4 Carat Diamond "Mom" and Open Heart Pendant Necklace
Located in New York, NY
Celebrate the love and bond with your mother with this stunning pendant necklace. Expertly crafted with .925 sterling silver, this necklace features a beautiful open heart design tha...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, White Diamond, Sterling Silver

ERIN MAC Large Flame Pearls inset with Diamonds
Located in Menlo Park, CA
Bead Size: apx. 1.00 long x apx 0.75-1.00 wide
Category

2010s North American Diamond Necklaces

Materials

Diamond, Pearl, Sterling Silver

14 Karat Yellow Gold Pearl and Diamond Pendant #16628
Located in Washington Depot, CT
14K Yellow Gold Pearl and Diamond Pendant- This elegant pendant features one white pearl (8 mm) and 12 round brilliant cut diamonds set in beautifully detailed 14K yellow gold. App...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Pearl, 14k Gold, Yellow Gold

Natural Opal Diamond Necklace In 14 Karat White Gold
Located in Los Angeles, CA
1.82 Carat Natural Opal 14 Karat Solid White Gold Diamond Necklace Stamped: 14K Total Necklace Weight: 0.90 Grams Necklace Length 16 Inches Opal Weight: 1.50 Carat (7.00x7.00 Millime...
Category

2010s American Diamond Necklaces

Materials

Diamond, Opal, 14k Gold, White Gold

A stunning necklace of natural pink sapphire with diamond
Located in New York, NY
An exquisite necklace made of 18-karat yellow gold, set with a 0.81-carat diamond and a 1.61-carat natural pink sapphire. The necklace chain has a diamond by yard chain setting, and ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Pink Sapphire, 18k Gold, Yellow Gold

.925 Sterling Silver 1/4 Carat Round-Cut Diamond Cross 18" Pendant Necklace
Located in New York, NY
Celebrate your inner spirituality with this magnificent diamond cross pendant. This necklace is embellished with a 1/4 cttw of natural, round-cut diamonds. The prong-set diamonds are...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, White Diamond, Sterling Silver

Diamond Tahitian Pearl Necklace 18k Gold Certified
Located in Brooklyn, NY
Fine Quality Tahitian Pearl Diamond Necklace 12.9 mm 18k Gold 17.25" Certified $12,500 821383 This is a Unique Custom Made Glamorous Piece of Jewelry! Nothing says, “I Love you” mo...
Category

2010s American Modern Diamond Necklaces

Materials

Diamond, Pearl, Black Pearl, 18k Gold, White Gold

Vintage Italian Emerald and Diamond 18k Yellow Gold Butterfly Necklace
Located in Beverly Hills, CA
One Vintage Italian Emerald and Diamond 18k Yellow Gold Butterfly Necklace. Featuring one marquise cut emerald weighing approximately 0.10 carat. Accented by 26 round brilliant cut d...
Category

1970s Vintage Diamond Necklaces

Materials

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

Natural emerald diamond pendant 18KT gold 7.36 carats Emerald
Located in Boca Raton, FL
Modern emerald diamond pendant in 18Kt gold, the emerald weight 7.36 carats, green color with moderate inclusions. The diamonds weigh 0.33ct and are VS clarity and G color. Certifica...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald, Gold, 18k Gold

TJD 0.08 Carat Natural Round Diamond Eternity Circle Pendant in 14KT White Gold
By TJD
Located in New York, NY
This diamond open circle eternity pendant fits any occasion with ease. These eternity pendants are studded with 37 single cut natural diamonds in prong setting and crafted in 14 kara...
Category

2010s Indian Contemporary Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

1.68ct Round & Princess Cut Diamond Lariat Necklace in 14KT White Gold
Located in New York, NY
Metal: 14KT White Total Carat Weight: 1.68ctw Designer: SES Creations Number of Princess Cut Diamonds: 4 Carat Weight: 0.60ctw Number of Round Diamonds: 17 Carat Weight: 1.02ctw ...
Category

2010s American Modern Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

GIA 1.94 Unheated Ruby Pendant Necklace with Round Diamonds in Platinum
Located in La Jolla, CA
GIA Unheated Oval Ruby Pendant with Diamonds in Platinum Ruby and Diamond Pendant Necklace features a large Oval shaped Red Ruby surrounded by Natural Round Brilliant Diamonds in fa...
Category

21st Century and Contemporary North American Diamond Necklaces

Materials

Diamond, Ruby, Platinum

14k White Gold Pendant With Turquoise and Diamonds
Located in New York, NY
PRE ORDER TODAY !!! This stunning pendant necklace is crafted from 14k white gold and features a beautiful turquoise stone weighing 0.81 carats, accented by 0.23 carats of natural d...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

TJD 0.11 Carat Natural White Diamond 14 Karat White Gold Halo Cluster Pendant
By TJD
Located in New York, NY
Bring charm to your look with this diamond frame pendant. The pendant is crafted from 14 karat white gold and features 13 round brilliant cut and single cut diamonds in prong set, H-...
Category

2010s Indian Contemporary Diamond Necklaces

Materials

White Diamond, White Gold, 14k Gold

18 Kt gold natural Ruby and diamond gold necklace
Located in New York, NY
An 18-karat yellow gold necklace set with a natural 1.51-carat ruby and 0.74-carat diamonds. This lovely, sophisticated necklace with an adjustable catch. The necklace is 18 inches l...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Vintage 18K Gold Rubellite Tourmaline & Diamond Necklace
Located in Henderson, NV
Crafted in 18K yellow gold, the necklace features an oval rubellite tourmaline set within an intricate diamond cluster setting. Rubellite: 5.0 ...
Category

20th Century Diamond Necklaces

Materials

Diamond, Tourmaline, Gold, 18k Gold, Yellow Gold

Natural 22.43 Ct. Marquise Diamond Necklace 14 Karat White Gold Handmade Jewelry
Located in IN
Every aspect of this stunning necklace is handmade by our master craftsmen, who bring decades of experience and expertise to every piece they create. From the initial design concept ...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, White Gold, 14k Gold

Antique Deco Aquamarine Diamond Onyx Pearl Gold Pendant Necklace
Located in Miami, FL
An antique deco piece with endless beauty, a color play with elegance between the sky blue color Aquamarine & the black from the Onyx gemstones. this piece is formed by 2 mm cream...
Category

1920s American Art Deco Vintage Diamond Necklaces

Materials

Aquamarine, Diamond, Onyx, Pearl, Gold

Retro Gold 5.50 Carat Natural Brilliant Colorless Diamond Elephant Necklace 1990
Located in Los Angeles, CA
Magnificent 5.50 Carat (appx) Natural Diamond Elephant Necklace set in 18k Yellow Gold. There are 24 elephant links. The piece is set with 456 Natural Colorless Round Brilliant Dia...
Category

1990s African Retro Diamond Necklaces

Materials

Diamond, Gold, 18k Gold

Diamond Chandelier Pendant In Two Tone Gold
Located in Phoenix, AZ
A gorgeous pendant filled with 1.02 carats of white diamonds all set in 18k white and rose gold. Dimensions are 35.5mm x 19.48mm.
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Gold

1.42ctw Diamond and Tanzanite Pendant Necklace, 14k White Gold, Length 18 Inches
Located in McLeansville, NC
This stunning 1.42ctw diamond and tanzanite pendant necklace is a true gem. Crafted in 14k white gold, this necklace features a breathtaking 1.4ct tanzanite center stone with 0.02ctw...
Category

1990s Diamond Necklaces

Materials

Diamond, Tanzanite, 14k Gold, White Gold

White Diamond Round Tennis Necklace in 14K Yellow Gold
Located in Los Angeles, CA
Beautiful 17.65 ct. white diamond rounds. Handmade in 14k yellow gold. Length of necklace is 16".
Category

21st Century and Contemporary Diamond Necklaces

Materials

White Diamond, Yellow Gold

1.20ct Rare moving diamond pendant necklace circle infinity diamond pendant 18KT
Located in Boca Raton, FL
Stunning moving pendant necklace in 18KT yellow gold made with 1.20 ct of diamonds VS clarity and F color. Chain is 18" Certiicate of authenticity come...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold

.41ct Princess Cut Diamond pendant in 18KT White Gold
Located in New York, NY
Metal: 18KT White Gold Designer: SES Creations Total Carat Weight: 0.41ctw Chain Length: 16" Long Number of Princess Cut Diamonds: 1 Carat Weight: 0.27ctw Setting: Prong Set Number...
Category

2010s American Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

14K White Gold Diamond Cross Pendant Necklace #16588
Located in Washington Depot, CT
14K White Gold Diamond Cross Pendant Necklace - This beautiful diamond cross necklace features 1 round brilliant diamond. 1 round brilliant diamond totaling approx. 0.01ct. Tota...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold

9 Piece Emerald Diamond Pendant Necklace 18k White Gold
Located in Honolulu, HI
9 Piece Emerald Diamond Pendant Necklace with Dividers set in Round Diamonds 18k White Gold ​ ​Item Specifications: Necklace Metal: 18k White Gold Total Weight: 4.3 Grams Chain Le...
Category

21st Century and Contemporary Unknown Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

0.15ctw Diamond Flower Pendant Pearl Strand Necklace 14k Gold 33" Adjustable
Located in McLeansville, NC
Gemstone Information: - Natural Diamonds - Total Carats - 0.15ctw Cut - Single Color - G - H Clarity - VS2 - SI1 - Cultured Pearls - Size - 6.5 mm Cut - Round Bead Shape Color - Wh...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Pearl, 14k Gold, Yellow 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: I1 Total Carats: .25ctw Theme: Heart, Love Measurements T...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 10k Gold, Yellow Gold

Natural Pink Sapphire Diamond Necklace In 14 Karat White Gold
Located in Los Angeles, CA
29.13 Carat Natural Sapphire 14 Karat Solid White Gold Diamond Necklace Stamped: 14K Total Necklace Weight: 20.3 Grams Necklace Length: 18 Inches Sapphire Weight: 27.63 Carat (6.00x4...
Category

2010s American Diamond Necklaces

Materials

Diamond, Sapphire, Pink Sapphire, 14k Gold, White Gold

Art Deco Inspired Diamond Platinum 14k White Gold Necklace
Located in Beverly Hills, CA
One Art Deco Inspired Diamond Platinum 14k White Gold Necklace. Featuring 12 tapered baguette, 4 trapezoid, and 3 emerald cut diamonds with a total weight of approximately 1.90 carat...
Category

21st Century and Contemporary Art Deco Diamond Necklaces

Materials

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

Natural multi sapphire and diamond necklace set in 18-Kt gold
Located in New York, NY
An gorgeous necklace made of 18-karat yellow gold, set with a natural 0.70-carat diamond and a 3.28-carat natural multi sapphire. The necklace's chain is made of diamond yard, and it...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Natural Ruby Diamond Necklace In 14 Karat Yellow Gold
Located in Los Angeles, CA
46.40 Carat Natural Ruby 14 Karat Solid Yellow Gold Diamond Necklace Stamped: 14K Total Necklace Weight: 30.8 Grams Necklace Length: 18.5 Inches Center Ruby Weight: 2.20 Carat (10.00...
Category

2010s American Diamond Necklaces

Materials

Diamond, Ruby, 14k Gold, Yellow Gold

Octagon Emerald and Diamond Pendant in 18K Yellow Gold
Located in Houston, TX
Emerald and diamond pendant in 18K Gold. It has a octagon cut emerald studded with diamond that completes your look with a decent touch. Pendants are used to wear or gifted to repres...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Emerald, Yellow Gold, 18k Gold

Vintage 18 Carat Oval Patroke Kunzite and Diamond Pendant Necklace
Located in Montreal, QC
Simply Beautiful! Vintage Large Oval Patroke Kunzite and Diamond Solitaire Gold Pendant Necklace. Centering a Hand set securely nestled Oval Patroke Kunzite, weighing approx. 18 Cara...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Kunzite

White Gold Diamond Eternity Necklace, 11.75 Carats
Located in Palm Desert, CA
18 Karat White Gold Diamond Eternity Necklace. An absolutely gorgeous necklace featuring one hundred forty-five round prong-set diamonds with a carat total weight of 11.75ctw. The gr...
Category

2010s American Contemporary Diamond Necklaces

Materials

Diamond, Gold, White Gold, 18k Gold

Neon Love Dali Australian Opal Necklace with Diamond in Rose Gold, NIXIN Jewelry
Located in Los Angeles, CA
An opal heart charged with color, flashes from this Australian Opal Necklace. Gleaming from within its bezel setting, the Crystal Opal flaunts electric pinks, greens and blues. From behind the opal glows a rose gold plate with a heart-shaped cutout at it's center, exposing a glimpse of the opal's sandstone. Set into the chain above, a small diamond shines down upon the opal stone. Earthen and rustic, yet energized with lurid hues, this crystal opal necklace brims with a love so bright it's bound to warm your heart. Given the delicate nature of this vivacious stone, we crafted a handmade, enclosed setting for this opal heart necklace...
Category

2010s American Contemporary Diamond Necklaces

Materials

Diamond, Opal, 14k Gold, Rose Gold

Evil eye pendant necklace 14KT white gold Natural sapphires and diamonds pendant
Located in Boca Raton, FL
Simple and elegant pendant necklace made with natural sapphires and diamonds in 14Kt white gold, certificate of authenticity comes with the purchase! Chain is 18" ABOUT US We are a...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

14K Yellow Gold Diamond & Emerald Necklace IGI Certified
Located in Media, PA
This stunning 14K yellow gold necklace features beautiful emerald stones and sparkling diamonds, making it the perfect addition to any jewelry collection. The piece is IGI certified...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

TJD 0.25 Carat White & Black Treated Diamond 14KT Gold Cushion Frame Pendant
By TJD
Located in New York, NY
Top off your casual or dressy looks with this diamond pendant. Designed in 14 Karat white gold, studded with 45 brilliant cut & black treated diamonds in prong setting. it will come ...
Category

2010s Indian Contemporary Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Hamsa diamond pendant necklace 14KT yellow gold 1.21ct 16" necklace
Located in Boca Raton, FL
Large Hamsa pendant necklace made in 14KT yellow gold with natural diamonds of VS clarity and G color, chain is 16" long. ABOUT US We are a family-owned business. Our studio in loc...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold, Yellow 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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