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Diamond Necklaces

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Gemstone: Diamond
14k Solid White Gold Star Diamond Chain Necklace Gift For Her
Located in Houston, TX
Star Diamond Chain Necklace in 14K Gold studded with round cut diamond. This stunning piece of jewelry instantly elevates a casual look or dressy outfit. Diamond brings love, fame, ...
Category

21st Century and Contemporary American Modernist Diamond Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

18 kt white gold Sturdy necklace with sliding pendants with Diamonds & Pearls
Located in Antwerp, BE
Gorgeous 18 kt white gold Sturdy necklace with sliding pendant with Diamonds & Pearls Diamonds: Brilliant cut diamonds together 1.17 ct. G vs Pearls: 5 pearls the biggest pearl has...
Category

21st Century and Contemporary Italian Artisan Diamond Necklaces

Materials

Diamond, Pearl, 18k Gold, White Gold

Ancient Parthian Kings Coin 123-88 BCE Necklace In 18Kt Yellow Gold And Diamonds
Located in Miami, FL
Necklace with a 123 BC ancient coin from the Parthian Kingdom. Gorgeous coin necklace, mounted with a genuine silver coin from the Parthian Kingdom. The coin is a silver Drachm of 1...
Category

15th Century and Earlier Italian Modernist Antique Diamond Necklaces

Materials

Diamond, White Diamond, Hematite, Gold, 18k Gold, Yellow Gold, Silver

England 1870 Neo Gothic Pendant With Griffin In 18Kt Yellow Gold With Diamonds
Located in Miami, FL
A Victorian neo-gothic pendant Brooch with a winged Griffin. Fabulous pendant-brooch, created in England during the Victorian era in the late 19th century, circa 1870. This piece wa...
Category

1870s English Gothic Revival Antique Diamond Necklaces

Materials

Natural Pearl, Pearl, White Diamond, Diamond, Enamel, Yellow Gold, 18k G...

1.70 Ct Canary and White Diamond Circular Pednant
Located in New York, NY
Introducing a radiant 1.70-carat Canary and White Diamond pendant, where elegance and contrast converge in a captivating circle. The circular shape is divided into two halves, with t...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Sapphire & Diamond By The Yard 14 Karat White Gold Necklace
Located in Boca Raton, FL
Modern sapphire and diamond By The Yard necklace crafted in 14 karat white gold. The necklace features 7 round brilliant cut diamonds weighing approximately .42 CTW and 8 oval blue s...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Sapphire, 14k Gold, White Gold

14K White Gold .25 CTW Diamond Anchor Pendant Necklace
Located in Stuart, FL
14k white gold .25 CTW diamond anchor pendant necklace. All diamonds in the pendant are round, the pendant measures 23mm x 14.5mm, comes on an 18-inch diamond cut cable chain, has a ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

Diamond Cross Pendant in Rose Gold
Located in Phoenix, AZ
A stunning diamond cross necklace full of sparkle with .52 carats of diamonds set 14k rose gold. The dimensions of this pendant are 43.4mm x 31.2mm.
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Rose Gold

Diamond Cross Pendant Necklace 18K White Gold
Located in London, GB
Round diamond cross pendant necklace in 18k white gold. Round brilliant diamond total weight 1.06ct G colour, VS1 clarity Hallmarked. Chain length 18 inches Cross measurements approx...
Category

21st Century and Contemporary British Art Deco Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

14K Yellow Gold 0.38ct Diamond Star of David Necklace PN15241-Y
Located in Southampton, PA
Do you prefer to wear the same minimalist jewelry day after day? Do it in style by picking this hexagram necklace. It features a thin chain in 14K yellow gold holding a six-pointed star pendant measuring less than half an inch. The yellow gold star is dotted with 12 round brilliant diamonds, each secured by four prongs. Serving as the bail is a round-and-baguette diamond duo.This brand new 14K Yellow Gold 0.38ct Diamond Star of David Necklace...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Yellow Gold

White Diamond Rounds 14K Yellow Gold Fancy Fashion Drop Chain Pendent Necklace
Located in Sayreville, NJ
Elevate your neckline with our beautiful 14K Yellow Gold pendant necklace, adorned with a dazzling array of White Diamond Rounds. The pendant is set with a brilliant collection of W...
Category

2010s American Modernist Diamond Necklaces

Materials

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

Edwardian 12K White Gold Diamond Lucky Horseshoe Pendant
Located in Venice, CA
Circa 1900, this 12k gold lucky horseshoe pendant contains 25 sparkling single cut diamonds bead set with bright cut work. The setting has scalloped edges along the bottom outside bo...
Category

Early 1900s Unknown Edwardian Antique Diamond Necklaces

Materials

Diamond, White Gold

Diana M. Jewels Custom18 kt White Gold 4 Prong Diamond Tennis Necklace 23.05ct
Located in New York, NY
Custom 18 k white gold, 17" 4 prong diamond tennis necklace 23.05 cts round diamonds.FG color SI clarity. Excellent cut.
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Full Ball Diamonds Clasp 17.1x10.8 mm 18K White Gold
Located in New York, NY
Full Ball Diamonds Clasp 17.1x10.8 mm 18K White Gold
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Full Ball Diamonds Clasp 16.3x11 mm 18K White Gold
Located in New York, NY
Full Ball Diamonds Clasp 16.3x11 mm 18K White Gold
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

14K Yellow Gold over Silver 1/10 Carat Round-Cut Diamond Bezel Pendant Necklace
Located in New York, NY
Some things shouldn't be reinvented, which is why we created the Solitaire Diamond Necklace. This is the perfect way to highlight every big occasion, transition, and personal achieve...
Category

21st Century and Contemporary Indian Modern Diamond Necklaces

Materials

Diamond, White Diamond, Gold Plate, Yellow Gold, Sterling Silver, 14k Gold

Color Enhanced Yellow, Purple and Green Diamond Pendant Necklace
Located in Phoenix, AZ
This diamond pendant necklace is truly eye catching! These color enhanced diamonds are absolutlely beautiful. The yellow diamond is .25 carats, purple diamond is .50 carats, and the ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, White Gold

LB Exclusive 14K Yellow Gold 0.05ct Diamond Pendant Necklace PD4-16247YGA
Located in Southampton, PA
Add a touch of sophistication to any ensemble with this simple, elegant necklace. Suspended from an 18 chain, youll find a 14K Yellow Gold pendant measuring 1.25 long and 0.25 wide. ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Garnet, Yellow 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

Three Stone Diamond Hexagon Pendant in 14k White Gold
Located in Phoenix, AZ
The perfectly petite diamond hexagon pendant! With .28 carats of diamonds set in 14k white gold. The pendant measures 9.5mm in length.
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, White Gold

ANGARA Natural 1.80ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 3.50ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 0.85ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K Rose Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Rose Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 3.50ct Garnet Teardrop Pendant with Diamond in 14K Rose Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Rose Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 3.50ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 0.85ct Garnet Teardrop Pendant with Diamond in 14K Rose Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Rose Gold

ANGARA Natural 1.80ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 2.10ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 1.30ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 1.80ct Garnet Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, White Gold

ANGARA Natural 1.80ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

Natural 3.50ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 0.85ct Garnet Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped intense red garnet is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop garnet pendant with V bale is scul...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Diamond, Garnet, Yellow Gold

ANGARA Natural 1.60ct Amethyst Teardrop Pendant with Diamond in 14K Rose Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, Rose Gold, 14k Gold

ANGARA Natural 1ct Amethyst Teardrop Pendant with Diamond in 14K Rose Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, Rose Gold, 14k Gold

ANGARA Natural 0.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 0.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 2.80ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 0.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 1ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 1.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 1.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 2.60ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 2.60ct Amethyst Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, Yellow Gold, 14k Gold

ANGARA Natural 1ct Amethyst Teardrop Pendant with Diamond in 14K Yellow Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, Yellow Gold, 14k Gold

ANGARA Natural 1ct Amethyst Teardrop Pendant with Diamond in 14K White Gold
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, White Gold, 14k Gold

ANGARA Natural 0.60ct Amethyst Teardrop Pendant with Diamond in Platinum
Located in Los Angeles, CA
A pear-shaped deep purple amethyst is secured in a prong setting and embellished with a diamond accent on the top. Simple yet stunning, this teardrop amethyst pendant with V bale is ...
Category

21st Century and Contemporary American Modern Diamond Necklaces

Materials

Amethyst, Diamond, Platinum

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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