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Diamond Necklaces

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Bulgari Diamond Double Wrap Serpenti Necklace
Located in New York, NY
BULGARI Diamond Double Wrap Serpenti Necklace An 18k white gold serpent-shaped necklace, set with diamonds and pear shaped diamond in a highly flexible construction that double wrap ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold

18 Karat Gold Handmade Sunburst Pendant with 64 Brilliant Cut Diamonds
Located in London, GB
Handmade 18kt gold Sunburst pendant with 64 brilliant cut diamonds, hanging on 25” trace chain with two extra one inch shorteners. Symbolism: The sunburst is a common design that fe...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, Gold, 18k Gold

Original Mario Buccellati Parure, Signed
Located in Southbury, CT
This is an original 18K gold and yellow diamond Mario Buccellati Parure from the Mid-Century. Jewels created by the actual founder of the iconic jewelry house are the rarest and most...
Category

1950s Renaissance Revival Vintage Diamond Necklaces

Materials

Diamond, 18k Gold

Made in Italy Rare Turquoise Drop Set Necklace, Diamonds, 18kt White Gold
Located in Marcianise, Marcianise (CE)
Elegant and beautiful necklace in 18 karat white gold structure mounted with turquoise surrounded by white diamonds. The particularity of this necklace are the drop shape pendants re...
Category

1980s Retro Vintage Diamond Necklaces

Materials

White Diamond, Turquoise, 18k Gold, White Gold

Victorian Old Mine Diamond Necklace
Located in New York, NY
Victorian Old Mine Diamond Necklace A victorian platinum necklace, set with diamonds weighing approx. 20 carats total weight. circa 1890 Condition: Good - Previously owned and gently...
Category

1890s Antique Diamond Necklaces

Materials

Diamond, Platinum

Bulgari Diamond, Emerald Serpenti Necklace
Located in New York, NY
BULGARI Diamond, Emerald Serpenti Necklace. An 18k white gold serpent-shaped necklace, set with diamonds and pear shaped emerald in a highly flexible construction that drapes around ...
Category

2010s Diamond Necklaces

Materials

Diamond, Emerald, Onyx, 18k Gold

Exclusive 18 Karat White and Yellow Gold South Sea Pearl and Diamonds Necklace
Located in Valenza, IT
Exclusive fine timeless Yellow and White Gold Necklace, with South Sea White Pearl (15.90mm), South Sea Yellow Pearl (15.20mm), White Diamonds ct. 5.46 and Yellow Diamonds ct. 8.55, ...
Category

2010s Modern Diamond Necklaces

Materials

Diamond, White Diamond, Yellow Diamond, South Sea Pearl, Gold, 18k Gold,...

18ct White Gold Tanzanite & Diamond Necklace, Ring & Earrings Set
Located in Cape Town, ZA
A Magnificent tanzanite and diamond a parure of jewellery, comprising a necklace, ring and earrings. This very elegant necklace, earring and ring set - using Oval Cut Tanzanite’s & W...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Tanzanite, White Gold

Curved Bar Diamond 18k White Gold Pendant Chain Serpent Snake Crafted Necklace
Located in Milano, IT
Stunning and marvelous curved vertical bar diamond pendant embellished with a delicate 41.5 cm 18k white gold chain. A total of 0.32 carat diamonds create a snake / serpent shape of ...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

18ct White Gold Wheat Link Diamond Necklace
Located in Cape Town, ZA
This unique adjustable wheat link necklace with sublime detailed clasp is set in 18Carat White Gold and weighs 25.5grams. This necklace features 23 RBC Diamonds (GH vssi) weighing 0....
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, White Gold

French 18K Yellow Gold Lovebirds Emerald Ruby Sapphire Diamond Pendant
Located in London, GB
A French 18 karat (18K) yellow gold pendant depicting a pair of lovebirds on a branch in front of the setting sun. Set with a faceted emerald, ruby and diamond, a cabochon ruby and s...
Category

20th Century Diamond Necklaces

Materials

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

16.15 Carat Australian Opal, Diamond and Emerald Necklace Estate Fine Jewelry
Located in Montreal, QC
Simply Beautiful! Elegant and finely detailed House of Ming design with a Natural Australian Lightning Ridge Dark Gray Opal Pendant Necklace. Center Hand set with a securely nestled ...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Emerald, Opal, Gold, 14k Gold, White Gold

Rabbit White Black Diamond Orange Sapphire Tsavorite 18Kt Gold Pendant Necklace
Located in Bussolengo, Verona
Rabbit White Black Diamond Sapphire Tsavorite 18Kt Gold Pendant Necklace I used a beautiful Australian baroque pearl, I made the legs, tail and ears in white gold by setting them w...
Category

2010s Artisan Diamond Necklaces

Materials

White Diamond, Black Diamond, Sapphire, Tsavorite, Gold

Barbara Heinrich One of a Kind Large Iridescent Pearl Diamond Gold Necklace
Located in Dallas, TX
One of a Kind Necklace hand-fabricated by award-winning jewelry maker Barbara Heinrich featuring a truly spectacular 27mm x 24mm white freshwater pearl with exceptional iridescence a...
Category

2010s Artisan Diamond Necklaces

Materials

Freshwater Pearl, White Diamond, Multi-gemstone, Pearl, Diamond, Gold, 1...

Sabbadini Yellow Gold Diamond Necklace, Earrings and Bracelet Suite
Located in London, GB
An 18k yellow gold diamond suite by Sabbadini. The suite consists of a bracelet, necklace and a pair of earrings pave set with round brilliant cut diamonds in a beaded ball design. T...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Antique Retro 14 Karat Gold Double Gas Pipe Necklace with Diamonds
Located in New York, NY
A fine Retro 14k yellow gold diamond double gas pipe necklace necklace circa 1940. This popular style necklace features stacked gas pipe tubogas necklaces, with a front section clasp...
Category

1940s Retro Vintage Diamond Necklaces

Materials

Diamond, Gold, 14k Gold

Yellow Diamond Cluster Pendant Set in 18k White and Yellow Gold
Located in London, GB
An elegant yellow and white diamond cluster necklace set in 18k white gold. The pendant is centrally set with a sparkly round brilliant cut yellow diamond that is haloed by 12 smal...
Category

2010s Modern Diamond Necklaces

Materials

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

Art Deco Diamond Filigree White Gold Pendant Necklace
Located in Los Angeles, CA
Art Deco diamond and white gold filigree pendant necklace circa 1930. We are here to connect you with beautiful and affordable antique and estate jewelry. SPECIFICATIONS: Contact...
Category

1930s Art Deco Vintage Diamond Necklaces

Materials

Diamond, 14k Gold, White Gold

Amethyst Baguettes and Diamonds White Gold Cross Made in Italy
Located in Valenza, AL
Gilberto Cassola 18Kt White Gold Cross Pendant with Amethyst Baguettes and White Diamonds. Handmade in our Atelier in Valenza (Italy). This Piece comes with a 46 cm 18Kt White Gold C...
Category

2010s Contemporary Diamond Necklaces

Materials

Amethyst, Diamond, 18k Gold

Guardian Angel Pendant With Chain And Traceable Diamond 18 Karat Yellow Gold
Located in Haddonfield, NJ
Yellow Gold Guardian Angel Pendant With Chain And Traceable Diamond 18k By Rocks For Life The Guardian Angel Pendant is designed as love token for any occasion and for all ages. The...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Ella Gafter Blue Sapphire Pearl Necklace
Located in New York, NY
The blue sapphire and diamond necklace features a ligature of 4 fancy-cut Ceylon sapphires and round diamonds suspending a splendid 18mm South Sea pearl. The 3.25” pendant is accompa...
Category

21st Century and Contemporary Artist Diamond Necklaces

Materials

Sapphire, White Diamond, South Sea Pearl, Diamond, Blue Sapphire, Pearl,...

Original Smokey Quartz, Citrine and Diamond Artistic Necklace, 13.24 Carats
Located in Austin, TX
This artistic necklace has three parts: pave diamond bail, pear shaped golden citrine and rose cut smokey quartz. There are accent diamonds on the smokey quartz and the the gold work...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, Quartz, Citrine, 14k Gold, Rose Gold

Van Cleef & Arpels Diamond Carnelian Limited Edition Alhambra Rose Gold Necklace
Located in Banbury, GB
18K Rose Gold Limited Edition Alhambra Diamond And Carnelian Necklace was released in 2011 Christmas as the holiday pendant. VCA doesn't create this version anymore, truly collective...
Category

2010s Diamond Necklaces

Materials

Carnelian, Diamond, 18k Gold, Rose Gold

Syna Yellow Gold Notebook Pendant with Champagne Diamonds
Located in Fort Lee, NJ
Created in 18k yellow gold Champagne diamonds 0.20 carat approx. Book has two pages Chain sold separately About the Designers ~ Dharmesh & Namrata Drawing inspiration from little...
Category

2010s Contemporary Diamond Necklaces

Materials

Diamond, Brown Diamond, 18k Gold, Yellow Gold

Nova Art Deco Style Round Brilliant Diamond Sapphire Pendant 18K White Gold
Located in Bangkok, TH
This Art-Deco style pendant is completely spectacular! The vibrant color stone (you can select Blue Sapphire, Emerald, Ruby) is a specialty cut to surround the excellent round brilli...
Category

21st Century and Contemporary Art Deco Diamond Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold

Rainbow Sapphires and Diamonds Gold Leaf Pendant Made in Italy
Located in Valenza, AL
18Kt White Gold Leaf Pendant with Oval Shaped Natural Rainbow Sapphires, Round and Baguette Diamonds. One of a Kind Piece. Handmade in our Atelier in Valenza Italy. This Item can be ...
Category

2010s Contemporary Diamond Necklaces

Materials

Green Sapphire, Diamond, Ruby, Blue Sapphire, Pink Sapphire, Yellow Sapp...

18 Karat White Gold Multi Shaped Diamond Necklace
Located in Scottsdale, AZ
Designer: custom Material: 18K white gold Diamond: 28 multi cut = 8.86cttw Round Brilliant, Trillion, Pear, and Marquise Color: G/H/I Clarity: VS2-SI1 Dimensions: necklace measures ...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

"La Belle Époque" Diamonds '4 Carats', Ruby and Sapphire Barrete Brooch
Located in Viana do Castelo, PT
A Elegante and Magnificent Portuguese La Belle Époque Barrete Brooch, a perfect symphony between diamonds, a ruby and a sapphire, although discreet in from with the 4 Carats in diam...
Category

Late 19th Century Belle Époque Antique Diamond Necklaces

Materials

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

Peter Suchy 4.10 Carat Aquamarine Diamond White Gold Pendant Necklace
Located in Stamford, CT
Natural aquamarine and diamond pendant necklace. Pear shaped aqua with with a diamond at top and 4 accent diamonds on the bail, 14k white gold. 16 inch chain. Designed and crafted in...
Category

21st Century and Contemporary Diamond Necklaces

Materials

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

Sybarite Jewellery White Diamond 18 Karat Yellow Gold Soldier Pendant Necklace
Located in London, GB
Sybarite Jewellery is a London-based luxury brand crafting outstanding pieces, incomparable both in design and in execution. Spearheaded by founder Margarita Prykhodko, a former arch...
Category

2010s Contemporary Diamond Necklaces

Materials

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

Tiffany & Co Kaleidoscope Fancy Pink White Diamond Key Pendant Platinum Necklace
Located in Holland, PA
Platinum Fancy Pink And White Diamond Kaleidoscope Key Pendant Necklace by Tiffany & Co. With Round brilliant cut white and fancy pink diamonds total weigh approximately .10ct Detail...
Category

2010s Diamond Necklaces

Materials

White Diamond, Pink Diamond, Platinum

Guardian Angel Pendant With Chain Traceable Diamond 18 Karat White Gold
Located in Haddonfield, NJ
Guardian Angel Pendant With Chain Traceable Diamond 18k White Gold by Rocks For Life The Guardian Angel is designed as lovetoken for any occasion and for all ages. The Angel comes ...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Ella Gafter Sapphire Diamond Pearl Necklace
Located in New York, NY
The blue Ceylon sapphire pendant necklace features 5 faceted blue oval cut sapphires with a diamond center suspending a 16 x 17mm South Sea pearl. The 1.75” pendant is accompanied by...
Category

21st Century and Contemporary Artist Diamond Necklaces

Materials

Sapphire, White Diamond, South Sea Pearl, Blue Sapphire, Diamond, Pearl,...

White Gold with Diamond Pave' Mirror Cut Aquamarine Pendant
Located in los angeles, CA
Sleek as an infinity pool, clear as the sea, unbelievably striking. This one-of-a-kind unheated large scale mirror cut aquamarine necklace is set in 14k white gold with diamond pave’...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Aquamarine, Diamond, 14k Gold, White Gold, Steel, Stainless Steel

18K Yellow Gold Flower Pendant with Diamond
Located in Vannes, FR
18 karat yellow gold flower pendant with a diamond Discreet pendant of 1.4 cm in diameter on a piece of Coral. A Diamond of 0,01 carat is positioned in the center of the flower.
Category

1980s Artisan Vintage Diamond Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Vitale 1913 18 Karat White Gold Emerald Pink Diamond Pendant
Located in Monte-Carlo, MC
This 18K white gold pendant is from our Ocean Treasures Collection. The beautiful pendant has diamond chain with 2 pear shape sapphires in total of 1.25 Carat, certified pear shape ...
Category

2010s Contemporary Diamond Necklaces

Materials

Yellow Diamond, Diamond, Sapphire, White Diamond, Pink Diamond, 18k Gold...

Emerald and Diamond Gold Drop Layered Necklace Pendant with Diamond Stations
Located in New York, NY
Fourteen karats white gold trending layered necklace pendant with hanging emerald and diamond charm One round emerald in a circle charm weighing 0.10 carats Diamond weighing 0.10 car...
Category

2010s Contemporary Diamond Necklaces

Materials

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

295 Carat Opal Mosaic Beads, Gem Quality with Fancy Yellow Gold Diamond Clasp
Located in Tustin, CA
295 carats of the most gorgeous opal beads you will ever lay your eyes on are available for the first time on 1stdibs. 40 perfectly round beads, approximately 10 mm in size, are made...
Category

21st Century and Contemporary Contemporary Diamond Necklaces

Materials

Diamond, Opal, 14k Gold

Certified Emerald and Diamond Yellow Gold Choker Necklace
Located in London, GB
A beautiful 18k yellow gold emerald and diamond necklace. The necklace comprises of an octagonal emerald cut emerald with a weight of 2.84ct, with a strong bright green hue throughou...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald, 18k Gold, Yellow Gold

Fine White Opal & Diamond Halo Necklace in 18K White Gold
Located in New York, NY
Necklace contains 1 center cabochon 9x13mm white opal with a rainbow of flashing colors, weighing 3.04ct. Opal is surrounded by prong set round brilliant diamonds 0.30tcw to create a...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Opal, White Gold

Asprey Multi-Gemstone and Diamond Gold Pendant Necklace Estate Fine Jewelry
Located in Montreal, QC
Simply Beautiful! Designed as a linear cluster of Vari-Gemstones, Tourmaline, Peridot, Aquamarine, Citrine, Amethyst and lemon Quartz, suspended from a fine 18K White Gold link Chain...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Multi-gemstone, 18k Gold, White Gold, Gold

Antique Edwardian Black Starr & Frost Gold Pearl Diamond Amethyst Heart Brooch
Located in New York, NY
An antique platinum topped 18k gold buff top amethyst heart pin with bail surrounded by rosecut diamonds and small pearls, circa 1900. The amethysts is a pretty purple hue, and is sm...
Category

Early 20th Century Edwardian Diamond Necklaces

Materials

Amethyst, Diamond, Pearl, Gold, 18k Gold

Emerald and Diamond Pendant Necklace
Located in New York, NY
A stunning Emerald and Diamond pendant on a diamond tennis necklace. Certified, Intense Green 10.35 carat emerald cut Emerald surround by 6.75 carats of colorless white round bril...
Category

21st Century and Contemporary Diamond Necklaces

Materials

Diamond, Emerald

Green Jade and Onix Gold Pendant with Diamonds Made in Italy
Located in Valenza, AL
Gilberto Cassola 18Kt White Gold Pendant with an Oval Cushon Cut Green Jadeite, Black Onix and White Diamonds. Unique Piece Handmade in our Atelier in Valenza Italy. This beautiful J...
Category

2010s Contemporary Diamond Necklaces

Materials

Diamond, Jade, Onyx, 18k Gold

Edwardian Diamond Platinum Lavalier Necklace
Located in Los Angeles, CA
Edwardian diamond and platinum lavalier necklace circa 1910. We are here to connect you with beautiful and affordable antique and estate jewelry. SPECIFICATIONS: Contact us righ...
Category

1910s Edwardian Vintage Diamond Necklaces

Materials

Diamond, White Gold, Platinum

18K Yellow and White Gold and Diamond Brooch Pendant on Necklace or Chain
Located in Vannes, FR
18 karat Yellow Gold and White Gold Brooch and Diamond Pendant 18 karat yellow gold chain with pendant and brooch. 1 Diamond in pear 0,16 carats, 1 Diamonds 0,03 carats and Diamonds...
Category

20th Century Artisan Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Dove Necklace Gold Heart Ruby White Diamond Victorian Style J Dauphin
Located in Los Angeles, CA
Dove Silver Necklace Gold Heart Ruby White Diamond Victorian Style J DAUPHIN J DAUPHIN "Billet of myself" fallen dove silver chain necklace with a bleeding heart in gold with a whit...
Category

2010s Romantic Diamond Necklaces

Materials

White Diamond, Ruby, Gold, 14k Gold, Silver, Sterling Silver

Reversible Amethyst with Brown Diamond Pendant Set in 18 Karat White Gold
Located in Bangkok, TH
Amethyst 32.29 carats with Brown Diamond 1.26 carats Pendant set in 18 Karat White Gold Settings (chain not included) Width: 2.1 cm Length: 3.6 cm Total Weight: 12.19 grams "We f...
Category

2010s Contemporary Diamond Necklaces

Materials

Brown Diamond, Amethyst, 18k Gold, White Gold

Magnificent Rubelite and Diamond Collar in Rich 18 Karat Yellow Gold
Located in Tuxedo Park , NY
Beautiful Brazilian Handmade 18K Yellow Gold Collar with Trillion Red Brazilian Rubelite (13x13mm) surrounded, est 7.5 ct, with pave diamond est 0.65ctw H/I color, SI clarity, work....
Category

1980s Artisan Vintage Diamond Necklaces

Materials

Diamond, Rubelite, Tourmaline, 18k Gold, Gold

Platinum and Diamond Heart Necklace 1.05 Carats Total Weight
Located in Wailea, HI
Platinum and Diamond Heart Necklace 1.05 Carats Total Weight One Round Brilliant Cut Diamonds Weighing .35 Carats Approximately [GH VVS-VS] 77 Round Brilliant Cut Diamonds Weighing ...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Platinum

Guardian Angel Pendant Traceable Diamond in 18k White Gold by Rocks for Life
Located in Haddonfield, NJ
The Guardian Angel Pendant is designed as lovetoken for any occasion and for all ages. The Angel holds a traceable 0.01 carat diamond from the Jwaneng Diamond Mine in Botswana. Th...
Category

2010s Contemporary Diamond Necklaces

Materials

Diamond, 18k Gold, White Gold

Antique Diamond Crescent Enamel Snake with Pearl on Diamond Chain
Located in North Hollywood, CA
Diamond Crescent Necklace with Snake holding a pearl on a diamond studded chain. There is slight loss to the green enamel but it does not distract from the beauty of this piece. On...
Category

1910s Art Nouveau Vintage Diamond Necklaces

Materials

White Diamond, 18k Gold

4.21 Carat Pear Zambian Emerald 18 Karat Gold Chain Diamond Necklace
Located in Hoffman Estate, IL
Cast from 18-karat gold, this exquisite necklace is hand set with 4.21 carats Emerald and 4.80 carats of sparkling diamonds. FOLLOW MEGHNA JEWELS storefront to view the latest coll...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Emerald, Gold, 18k Gold

Antique Art Nouveau Gold Diamond Pendant
Located in Stamford, CT
A beautifully bloomed, delicate 14 Kt gold Art Nouveau pendant suspends a blister pearl and has, at center, a bright, white diamond old European diamond of approximately .13 cts. Bli...
Category

Early 1900s Art Nouveau Antique Diamond Necklaces

Materials

Diamond, Gold, 14k Gold

Syna Yellow Gold Rock Crystal Pendant with Champagne Diamonds
Located in Fort Lee, NJ
Created in 18k yellow gold Rock crystal 9 carats approx. Champagne diamonds 0.40 carat approx. Chain sold separately About the Designers ~ Dharmesh & Namrata Drawing inspiration ...
Category

2010s Contemporary Diamond Necklaces

Materials

Diamond, Brown Diamond, Crystal, Rock Crystal, 18k Gold, Yellow Gold

Vintage Boodles Large Blossom Diamond Pendant Necklace Set in 18k Rose Gold
Located in London, GB
A beautiful vintage Boodles ‘Blossom’ large diamond pendant necklace set in 18k rose gold. The necklace is predominantly composed of a large cherry blossom motif, pave set to the f...
Category

2010s Modern Diamond Necklaces

Materials

Diamond, Gold, 18k Gold, Rose Gold

Citrine with Diamond, Yellow Sapphire and Blue Sapphire Pendant in 18 Karat Gold
Located in Bangkok, TH
Citrine 32.49 carats with Diamond 0.05 carat, Yellow Sapphire 0.73 carat and Blue Sapphire 0.66 carat Pendant set in 18 Karat Gold Settings (chain not included) Width: 2.0 cm Leng...
Category

2010s Art Deco Diamond Necklaces

Materials

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

Shimmering 14 Karat White Gold Diamond and Sapphire Dragonfly Pendant on Chain
Located in Tustin, CA
Ladies 14 Karat white gold blue sapphire and diamond dragonfly pendant featuring six faceted dark blue sapphires making up the body of the dragonfly and 20 round brilliant diamonds a...
Category

21st Century and Contemporary Modern Diamond Necklaces

Materials

Diamond, Sapphire, White Gold, 14k Gold

Antique and Vintage Diamond Jewelry and Watches

Diamonds and antique 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 “Diamonds Are 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. 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 the stone 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 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. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamonds 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). When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty.

Shop antique and designer diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.