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Diamond Necklaces

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Creator: Roberto Coin
Gemstone: Diamond
Roberto Coin Flower Pendent with Diamonds 7771371AWCHX
Located in Wilmington, DE
18k White Gold Diamonds 0.17 total carat weight Adjustable chain 16" - 18" 7771371AWCHX
Category

2010s Diamond Necklaces

Materials

Diamond

Roberto Coin White Gold Cross Pendent with Diamonds 001857AWCHX0
Located in Wilmington, DE
Roberto Coin Cross Pendent with Diamonds 18k White Gold Diamonds 0.39 Carat Total Weight Chain Length 18" 001857AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Love Letter J Pendent with Diamonds 001634AYCHXJ
Located in Wilmington, DE
Roberto Coin Love Letter J Pendant with Diamonds 18kt Yellow Gold Diamonds 0.05 total carat weight 18″ Chain 001634AYCHXJ
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin Small Diamond Dot Necklace 111476AJCHX0
Located in Wilmington, DE
Roberto Coin Siena Small Diamond Dot Necklace in 18k White & Yellow Gold. Diamonds :- 0.08 total carat weight 111476AJCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

Roberto Coin Love Letter J Pendent with Diamonds 001634AWCHXJ
Located in Wilmington, DE
18kt White Gold Diamonds 0.06 total carat weight J 18″ Chain 001634AWCHXJ
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Love Letter L Pendent with Diamonds 001634AWCHXL
Located in Wilmington, DE
18kt White Gold Diamonds 0.03 total carat weight L 18″ Chain 001634AWCHXL
Category

2010s Diamond Necklaces

Materials

Diamond

Roberto Coin Circle of Life Pendent with Diamond Flower 8883002AYCHX
Located in Wilmington, DE
Roberto Coin Love in Verona Circle of Life Pendent with Diamond Flowers 18k Yellow Gold Diamonds 0.07 total weight Pendent Measure 20mm Chain measure 17" long with two additional...
Category

2010s Diamond Necklaces

Materials

Diamond, Yellow Gold, 18k Gold

Roberto Coin 18 Karat White Gold Link Necklace with Diamond Lock Pendant
Located in Dallas, TX
Roberto Coin 18K White Gold Diamond Padlock Link Necklace from the Appassionata Collection is 18 inches in length and consist of ornately designed open links. Each link is approximat...
Category

1990s Italian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

ROBERTO COIN Princess YG Satin Finish Collar Necklace with Fleur De Lis Diamonds
Located in San Diego, CA
ROBERTO COIN Princess Fleur de Lis Collection Slim Collar Necklace Style: Collar Metal: 18kt Yellow Gold Size / Measurements: 15' inches / 4.75 mm TCW: ~ 1.03 tcw Main Diamond:...
Category

2010s Italian Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin 1.75ctw Vintage Open Heart Diamond Necklace Pendant 18K White Gold
Located in Aventura, FL
Open Hart Diamond Pendant Necklace 18K White Gold by Roberto Coin. This is a piece for every personality. This beautiful diamond open heart pendant by designer Roberto Coin features ...
Category

21st Century and Contemporary American Modernist Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Appassionata 18k Rose Gold Woven Wide Collar Necklace Diamond Clasp
Located in Montclair, NJ
--Stone(s):-- (19) Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - F/G Color - VS1/VS2 Clarity - 0.25ctw (approx.) (3) Natural Genuine Rubies - 1 Marquise Cut , 2 Emeral...
Category

21st Century and Contemporary Italian Diamond Necklaces

Materials

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

Roberto Coin 18K White Gold Diamond Circle of Life Pendant 1.03cts #16976
Located in Washington Depot, CT
Roberto Coin 18K White Gold Diamond Circle of Life Pendant This classic diamond circle pendant was created by Roberto Coin and is set in white gold Diamond is set with 34 diamonds ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Roberto Coin 18K White and Yellow Gold Diamond Choker Collar Necklace #16961
Located in Washington Depot, CT
Roberto Coin 18K Yellow and White Gold Diamond Choker Collar Necklace This classic Roberto Coin choker is set in 18K yellow and white gold Center of the necklace is set with 75 rou...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Roberto Coin 18K White Gold Diamond X Choker Necklace 16" with box #16955
Located in Washington Depot, CT
Roberto Coin 18K White Gold Diamond X Choker This gorgeous Roberto Coin classic diamond x choker is set in white gold 75 round brilliant diamonds sparkle on and between 8 x station...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Estate Roberto Coin Cork Pendant Necklace in 18K 2 Tone Gold
Located in Los Angeles, CA
Beautiful estate Roberto Coin cork design pendant necklace with 1.25 ct. good quality, white, and bright diamond rounds. Handmade in 18k white and yellow gold. Length of chain is 19".
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Gold

Roberto Coin 15.90ctw Diamonds By The Inch Necklace 18K Yellow Gold
Located in Dallas, TX
Roberto Coin Diamonds By The Inch Necklace in 18K Yellow Gold. The necklace features approximately 15.90ctrw of bezel set brilliant round diamonds, G-H color, VS-SI clarity. Normal r...
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

ROBERTO COIN APPASSIONATA 3 Row Woven Basket Necklace , Bracelet Earring Suite
Located in New York, NY
As the name suggests, the Appassionata collection, a true classic from Roberto Coin, is well-suited to “passionate” wearers. Constructed from ribbed, interlocking 18K yellow gold lin...
Category

Early 2000s European Diamond Necklaces

Materials

Diamond, 18k Gold

Roberto Coin Yellow Gold three Diamond station Necklace 001317AYCHD0
Located in Wilmington, DE
Roberto Coin 18K Gold Necklace with 3 Diamond stations 18kt Yellow Gold Approx. .15 total carat weight 18″ Chain 001317AYCHD0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin 18 Karat White Gold Diamond Enhancer Necklace
Located in Scottsdale, AZ
Designer: Roberto Coin Material: 18K white gold Diamonds: 7 round brilliant cut = 0.07cttw Color: G Clarity: VS1-2 Weight: 3.55 Dimensions: necklace measures 18-inches long
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin 18 Karat White Gold and Diamond Butterfly Pendant #16637
Located in Washington Depot, CT
Roberto Coin 18 Karat White Gold and Diamond Butterfly Pendant- This sparkling butterfly charm features 37 round brilliant cut diamonds set in classic 18K white gold. Roberto Coin t...
Category

20th Century Diamond Necklaces

Materials

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

Roberto Coin Bezel Set Solitaire Necklace 001954AWCH20
Located in Wilmington, DE
Roberto Coin Bezel set Diamond Necklace in 18k White Gold. Diamond:-0.19 total carat weight 20" Chain Length 001954AWCH20
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin 'Diamonds by the Inch' Drop Lariat Necklace in 18 Karat Yellow Gold
Located in Scottsdale, AZ
This stunning Roberto Coin 'Diamonds By The Inch' lariat necklace, crafted in opulent 18 karat yellow gold, exudes timeless elegance and sophistication. This exquisite necklace featu...
Category

21st Century and Contemporary Italian Contemporary Diamond Necklaces

Materials

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

Roberto Coin Diamond 18 Carat Yellow Gold Necklace
Located in Rome, IT
This 18K Yellow Gold pendant and chain set from Roberto Coin features a Shiny Ceno Mini O design with a 24.7mm diameter (18.5mm without bail), and a thickness of 2.9mm. The pendant a...
Category

2010s Italian Modern Diamond Necklaces

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Roberto Coin 18K Yellow Gold 0.25ct Diamond and Mother of Pearl Pendant Necklace
Located in Southampton, PA
A dramatic design makes this Roberto Coin necklace impossible to ignore. Mother of Pearl adds a pop of color to the pendant, which measures 1.75 long by 1.15 wide. A singular 0.25 ca...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Pearl, 18k Gold, Yellow Gold

Roberto Coin Puffed Heart Pendent with Diamonds 001549AWCHX0
Located in Wilmington, DE
18kt White Gold Diamonds 0.15 total carat weight 18″ Chain 001549AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin Star of David Necklace 001610AWCHX0
Located in Wilmington, DE
18k White Gold Tiny Treasure Diamond Star of David Necklace Diamonds 0.09 total carat weight Chain 18" 001610AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Wide Choker Necklace with Diamonds 18k Rose Gold
Located in La Jolla, CA
Roberto Coin Wide Choker Necklace in 18k Rose Gold features three bars of Pave Diamonds offset to the side. Necklace is 1.35 inches wide and features a Ribbed 18k Rose Gold Collar m...
Category

21st Century and Contemporary Unknown Diamond Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Roberto Coin Venetian Princess Yellow Gold Diamond Necklace 7772985AYCHX
Located in Wilmington, DE
18k Yellow Gold Diamonds 0.02 carat total weight adjustable 16 to 18 inch chain 7772985AYCHX
Category

2010s Diamond Necklaces

Materials

Diamond, Yellow Gold

Roberto Coin Baby Cross Pendent 001883AWCHX0
Located in Wilmington, DE
Roberto Coin Baby Cross Pendent with Diamonds 18k White Gold Diamonds 0.11 Carat Total Weight Chain 16"-18" Adjustable Pendent 7mm X 5mm 001...
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Large Flower Diamond Ladies Pendent 7772716AJ17X
Located in Wilmington, DE
Roberto Coin Principessa Large Flower Pendent with Diamonds Diamonds 0.16 total weight Chain 17" 7772716AJ17X
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin Love Letter M Pendent with Diamonds 001634AWCHXM
Located in Wilmington, DE
18kt White Gold Diamonds 0.08 total carat weight M 18″ Chain 001634AWCHXM
Category

2010s Diamond Necklaces

Materials

Diamond

Roberto Coin Anchor Pendent with Diamonds 001629AWCHX0
Located in Wilmington, DE
Roberto Coin Anchor Pendent with Diamonds 18k White Gold Diamonds 0.15 Carat Total Weight Chain Length 18" 001629AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Love Letter K Pendent with Diamonds 001634AWCHXK
Located in Wilmington, DE
18kt White Gold Diamonds 0.06 total carat weight K 18″ Chain 001634AWCHXK
Category

2010s Diamond Necklaces

Materials

Diamond

Roberto Coin Appassionata Necklace in 18 Karat Gold 70 Grams and Diamonds
Located in New York, NY
A statement of true, classic elegance, this 18k Roberto Coin Appasionata Necklace with Pave Diamond Clasp (.16ctw), is from his signature collection. The interlocking ribbed gold lin...
Category

20th Century Diamond Necklaces

Materials

Diamond, 18k Gold

Roberto Coin Baby Heart Pendent with Diamonds 001616AWCHX0
Located in Wilmington, DE
18kt White Gold Diamonds 0.11 total carat weight 18″ Chain 001616AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Princess Flower Medium Pendent with Diamonds 8882349AW18X
Located in Wilmington, DE
Roberto Coin Princess Flower Medium Pendent with Diamonds 18kt Gold Approx. 0.50 total carat weight 18″ Chain with 1/2″ x 1/2″ Pendant 8882349AW18X
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Ladies Diamond Heart Necklace 111453AWCHX0
Located in Wilmington, DE
Roberto Coin 18k White Gold Diamond Heart Necklace. Diamonds:-0.70 total carat weight 111453AWCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Diamond Scorpio Zodiac Medallion Necklace in 18 Karat Yellow Gold
Located in Scottsdale, AZ
This stunning Roberto Coin Diamond Scorpio Zodiac necklace is a celestial masterpiece that seamlessly blends luxurious craftsmanship with astro...
Category

21st Century and Contemporary Unknown Contemporary Diamond Necklaces

Materials

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

Roberto Coin Baby Cross Pendent with Diamonds 001883AYCHX0
Located in Wilmington, DE
18kt Yellow Gold 16″ long with a 2″ extender with a lobster clasp. Pendant length .25″ 7mm X 5mm Diamonds 0.11 total carat weight of Diamond 001883AYCHX0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin Nabucco Diamond & Gemstone 18K Suite Set of 4
Located in Miami, FL
atement Suite of Four from Nabucco Collection. Presenting a beautiful statement Necklace, Bracelet, Earrings, and ring. All are forged in 18K Yellow gold from the house of Roberto C...
Category

21st Century and Contemporary Italian Diamond Necklaces

Materials

Diamond, 18k Gold

Estate Roberto Coin Venetian Princess 18k Rose Gold Lapis & Diamond Necklace
Located in Dallas, TX
From designer Roberto Coin's Venetian Princess Collection, 18 karat rose gold lapis and diamond necklace. This necklace is crafted with 69 round brilliant cut diamonds with a total c...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Lapis Lazuli, Rose Gold

Roberto Coin Love Letter 'R' Pendent with Diamonds 001634AWCHXR
Located in Wilmington, DE
Roberto Coin Love Letter 'R' Pendent with Diamonds 18k White Gold Diamonds 0.06 carat Total Weight Chain Length 18" 001634AWCHXR
Category

2010s Diamond Necklaces

Materials

Diamond

Roberto Coin Princess Flower Yellow Gold Diamond Pendent 7771371AJCHX
Located in Wilmington, DE
18k Yellow Gold Diamonds 0.17 total carat weight Adjustable chain 16"-18" 7771371AJCHX
Category

2010s Diamond Necklaces

Materials

Diamond, Yellow Gold

Roberto Coin Chic & Shine Diamond Lariat Style Necklace in 18 Karat Yellow Gold
Located in Scottsdale, AZ
The Roberto Coin 'Chic & Shine' necklace is a stunning embodiment of sophistication and modern design. Crafted from luxurious 18-karat yellow gold, this necklace features a lariat-st...
Category

21st Century and Contemporary Unknown Contemporary Diamond Necklaces

Materials

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

Roberto Coin .20 Carat Diamond Sapphire Ruby Yellow Gold Oval Link Necklace
Located in Stamford, CT
Designer chic oval link gold necklace. This Roberto Coin, link necklaces has a total length of 32 inches, allowing to worn at that length or in a multi chain fashion. The highly poli...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Ruby, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold

Roberto Coin Diamond Circle Pendant - White Gold 18k Round .65ctw Love Eternity
Located in Greensboro, NC
Retail Price: $2500 Brand: Roberto Coin Design: Circle Metal Content: 18k White Gold Stone Information Natural Diamonds Carat(s): .65ctw Cut: Round Brilliant Color: G - H Clarity:...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Diamond Daisy Necklace in 18K Yellow Gold
Located in Honolulu, HI
Item Specifications: ​ ​Designer: Roberto Coin Necklace Metal: 18k Yellow Gold Total Weight: 4.8 Grams Diamond Color: G Diamond Clarity: VS Diamond Carat Weight: 0.18 Diamond C...
Category

21st Century and Contemporary Italian Modern Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

18K White Gold Roberto Coin Diamond Dangle Dog Bone Chain Necklace
Located in Washington Depot, CT
18K White Gold Roberto Coin Diamond Dog Bone Chain Necklace Gorgeous dog bone chain necklace by designer Roberto Coin decorated with 10 sparkling, round cut diamonds! Approximate t...
Category

20th Century Diamond Necklaces

Materials

Diamond, White Gold

Roberto Coin Yellow Gold Ladies Diamond Necklace 7771369AJCHX
Located in Wilmington, DE
Roberto Coin Large Pendant with Diamonds Diamonds 0.45 total weight 18″ Gold Chain 7771369AJCHX
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin New Barocco Wide Lattice Diamond Necklace 18K Yellow Gold
Located in Dallas, TX
Roberto Coin New Barocco Wide Lattice Diamond Necklace in 18K Yellow Gold. The necklace features 3.32ctw of brilliant round cut diamonds. Leng...
Category

2010s Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin 5 Station Diamond Flower Necklace 7773261AW17X
Located in Wilmington, DE
Roberto Coin 18k White Gold Diamond by the Inch 5 Station Flower Necklace. Diamond:-0.48 total carat weight Chain 17" 7773261AW17X
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Seven Station Diamond Necklace 001347AY18D0
Located in Wilmington, DE
Roberto Coin Seven Station Bezel Set Diamond Necklace in 18k Yellow Gold. Diamonds:- 0.35 total carat weight 18" inch in Length 001347AY18D0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Roberto Coin Venetian Princess Flower Turquoise Diamond Necklace 8882784AH18XT
Located in Wilmington, DE
Roberto Coin 18k Rose Gold Pendent features four turquoise arranged in the style of a flower with pave set round brilliant cut diamonds. Di...
Category

2010s Diamond Necklaces

Materials

Diamond, Turquoise, 18k Gold, Rose Gold

Roberto Coin 3 Station Diamond Flower Necklace 7773260AW17X
Located in Wilmington, DE
Roberto Coin 18k White Gold Diamond by the Inch 3 Station Diamond Flower Necklace. Diamond:-0.28 total carat weight chain 17" 7773260AW17X
Category

2010s Diamond Necklaces

Materials

Diamond, White Gold, 18k Gold

Roberto Coin Seven Station Diamond Necklace 001347AW18D0
Located in Wilmington, DE
Roberto Coin Seven Station Bezel Set Diamond in 18k White Gold. Length 18" Diamonds:-0.35 total carat weight 001347AW18D0
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin Small Princess Flower Diamond Necklace 7771370AWCHX
Located in Wilmington, DE
Roberto Coin Small Princess Flower Diamond Necklace in 18k White Gold. Diamonds:-0.04 total carat weight 7771370AWCHX
Category

2010s Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Roberto Coin 3.70 Carat Diamond Snake Necklace
Located in Rome, IT
The Necklace weighs 113 grams, 17" Inches(43CM) Long, 10mm Wide, 5mm Thick. The necklace contains 183 Natural Round Cut Diamonds weighing approximately 3.73 ct, G+ in color, VS+ in c...
Category

2010s Italian Modern Diamond Necklaces

Materials

Diamond, Yellow Gold, 18k Gold, White Gold

Roberto Coin Small Flower Diamond Ladies Pendent 7772717AJ17X
Located in Wilmington, DE
18k Yellow Gold Principessa Small Flower Pendent with Diamonds Diamonds 0.04 total weight Flower Measure 15mm x 15mm Chain 17" 7772717AJ17X
Category

2010s Diamond Necklaces

Materials

Diamond, 18k 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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