Diamond More Necklaces
80
7,361
16
to
976
5,216
1,640
12
107
1,267
5,991
43
32
36
26
29
80
77
101
149
103
1
148
122
92
91
91
5,108
2,242
27
6,711
3,476
3,037
2,139
2,041
7,377
1,649
1,582
1,153
652
3819
550
385
328
318
to
2,682
954
275
149
119
89
60
50
28
19
8
8
6
4
3
1
Gemstone: Diamond
Antique Belle Époque Diamond Platinum Collier De Chien Choker Collar Necklace
Located in Munich, Bavaria
Flexible diamond "collier de chien" made out of platinum and set with rose diamonds. Nine oval links alternate with nine double bows to form an exquisite choker. The collar is modell...
Category
Early 20th Century Belle Époque Diamond More Necklaces
Materials
Diamond, Platinum
Cultured Pearl Necklace
Located in Toronto, ON
42 inch Strand of Cultured Fresh Water Pearl Necklace comprising 89 well matched slightly off round cultured pearls gauging approximately 10.00 - 11.50 mm, white, medium - high lustr...
Category
20th Century Diamond More Necklaces
Materials
Diamond, Pearl, Cultured Pearl, 14k Gold
Cartier Diamond Solitaire Pendant
By Cartier
Located in New York, NY
Cartier 18k White Gold & Platinum Diamond Solitaire Pendant Necklace. This pendant necklace
has a center of 1.01 carat round brilliant center diamond, Color: D, Clarity: IF, GIA#2193...
Category
21st Century and Contemporary Artist Diamond More Necklaces
Materials
Diamond, Platinum
Oval Horizontal Diamond Pendant, 1.00 Total Carat
Located in Cedarhurst, NY
This pendant features a 1.00 carat Oval diamond set horizontally.
The diamond is F Color, SI1 Clarity. The Pendant is set in 18K White Gold.
The Diamond is GIA certified
Category
2010s Diamond More Necklaces
Materials
Diamond, 18k Gold
Ancient Roman Cleopatra Half Coin Pendant in 22ct Yellow Gold and Diamonds
Located in Brisbane, AU
22ct gold ancient roman coin set with diamonds around the outer edge of the coin (FSI diamonds used)
Roman emporer side and crocodile representing Cleopatra on the other
Original ...
Category
2010s Artist Diamond More Necklaces
Materials
Diamond, 22k Gold, Yellow Gold
Vintage 60 Carat Diamond Floral Necklace Platinum
Located in BEVERLY HILLS, CA
Important exquisite grand diamond floral necklace platinum, high jewelry circa 1950's.
354 total diamonds, approximately 60 carats total. 146 round diamonds approximately F/G color ...
Category
1950s Edwardian Vintage Diamond More Necklaces
Materials
Diamond, Platinum
White Gold Graduated 24.35 Carat Diamond Tennis Necklace
Located in New York, NY
18KT white gold graduated four prong tennis necklace, features 24.35 carats of round brilliant cut diamonds.
This product comes with a certificate of appraisal
This product will be ...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, 18k Gold, White Gold
10.00 Carat Round Cut Diamond Riviera Necklace in 14K White Gold
Located in Chicago, IL
This is a graduated diamond Riviera necklace. Round brilliant cut diamonds totaling 10.00 carats are precision set in the 3 prong classic setting. The diamonds complete around this o...
Category
2010s Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, 14k Gold, White Gold
Boucheron Diamond Necklace
By Boucheron
Located in Monaco, MC
Boucheron Necklace in 18K white gold and platinum with a floral motif displaying brilliant cut as well as baguette cut diamonds.
Approx weight of diamonds: 9 carats
Signed Bouchero...
Category
20th Century Diamond More Necklaces
Materials
Diamond, White Gold, Platinum
Vintage Tiffany & Co. Fireworks Pearl and Diamond Pendant Necklace in Platinum
Located in London, GB
A beautiful vintage Tiffany & Co. ‘Fireworks’ pearl and diamond pendant necklace set in platinum.
From the now discontinued ‘Fireworks collection, the pendant is predominantly compo...
Category
Early 2000s Modern Diamond More Necklaces
Materials
Diamond, Pearl, Platinum
Alexander 17.55ct Illusion Set Diamond Tennis Necklace 18 Karat White Gold
Located in BEVERLY HILLS, CA
Exquisite illusion set tennis necklace, set to look like an emerald cut diamond tennis necklace. High jewelry by Alexander Beverly Hills.
17.55 carats of round and baguette cut diamo...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, White Gold
.75ctw White Gold Diamonds-by-the-Yard Necklace
Located in Chicago, IL
A gorgeous diamond necklace will rarely go overlooked. This 18” piece is both rare and stunning. It includes bezels that set white round diamonds. There are 10 white diamonds that to...
Category
2010s Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, 14k Gold, White Gold
Art Nouveau 14k Gold, Pearl, Coral and Diamond Swag Necklace
Located in New York, NY
Art Nouveau 14k gold , pearl, coral and diamond swag necklace with central foliate form pendant accented by a single prong-set diamond and 3 natural pearl accents. Necklace terminate...
Category
Early 20th Century Art Nouveau Diamond More Necklaces
Materials
Coral, Diamond, Pearl, 14k Gold
Diamond Riviera/Tennis Necklace
Located in Miami, FL
Tennis Necklace made with real/natural brilliant cut diamonds. Total Diamond Weight: 3.30 carats. Diamond Quantity: 106 brilliant cut diamonds. Diamond Color: G. Clarity: SI. Mounted...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, White Gold
1 Carat Round Black Diamond Solitaire Pendant Necklace in 14K White Gold
Located in Chicago, IL
Surprise a special woman in your life with this breathtaking, statement hand crafted solitaire black diamond necklace. This eye-catching pendant necklace features a 1 carat round cut...
Category
2010s Contemporary Diamond More Necklaces
Materials
Black Diamond, 14k Gold, White Gold
9.51 Carat Sapphire Pendant
Located in Richmond, BC
Striking heart shape sapphire pendant. Round brilliant cut, sparkling natural blue sapphires mounted in heart shape design, accented with round brilliant cut diamond in small heart ...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, Sapphire, 14k Gold
Elegant Diamond Necklace
Located in New York, NY
A beautiful necklace in a timeless design.
Pear shape and marquise cut diamonds make up this magnificent piece.
28.05 carats of F/G color VS clarity diamonds set in 18k white g...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, 18k Gold
Special Platinum Necklace with Drop Aquamarine Centre & Diamonds
Located in Tel Aviv - Jaffa, IL
Platinum
5 Ct Diamonds
12 Ct Aquamarine
Made in France
Weight: 46g
Category
1920s Modern Vintage Diamond More Necklaces
Materials
Aquamarine, Diamond, Platinum
Fei Liu Diamond Citrine Briolette 18 Karat White Gold Rose Pendant
By Fei Liu
Located in Birmingham, GB
Description:
As enchanting as the real-life flower, the Rose collection offers a modern yet feminine look. This pendant features delicate 18ct white gold rose set with 0.02ct diamond...
Category
2010s Contemporary Diamond More Necklaces
Materials
Citrine, Diamond, White Diamond, Gold, 18k Gold, White Gold, Rhodium
Modern Style Pendant Necklace in 18 Karat Yellow Gold with Natural Diamonds
Located in Berlin, DE
This modern style 18 karat yellow gold pendant necklace is encrusted with 5 round diamonds and detachable prasiolite (natural green quartz). This jewellery collection was featured in...
Category
21st Century and Contemporary Modern Diamond More Necklaces
Materials
Diamond, White Diamond, Amethyst, Quartz, Gold, 18k Gold, Rose Gold, Whi...
18K Yellow Gold Barry Peters Diamond Piano Keys Necklace
Located in New York, NY
Wearing statement necklaces can enhance your wardrobe and transform your outfits.
Glamorous diamond bib necklace encrusted with white and yellow diamonds with black onyx piano keys....
Category
20th Century Modern Diamond More Necklaces
Materials
Diamond, Yellow Gold
18 Karat Yellow Gold Pendant Necklace with 13.86 Carat Red Garnet and Diamond
By Eva Soussana
Located in Paris, FR
Designed by Eva Soussana, artist and founder of Hera-Jewellery, this timeless and elegant pendant necklace from the "Diana" collection with its pure and refined line was designed for...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, Garnet, 18k Gold, Yellow Gold
Vintage Hermès Diamond Chain Link Necklace Set in 18k Yellow Gold
By Hermès
Located in London, GB
A rare vintage Hermès diamond chain necklace set in 18k yellow gold.
The necklace is composed of 19 iconic Hermès ‘H’ motifs set alternately with twinkling little crosses. Each cro...
Category
1990s Modern Diamond More Necklaces
Materials
Diamond, Gold, 18k Gold, Yellow Gold
Alexander 1.77 Carat Diamonds by the Yard 18 Karat White Gold
Located in BEVERLY HILLS, CA
Exquisite round brilliant diamonds by the yard modern necklace. By Alexander Beverly Hills.
8 round brilliant diamonds, 1.77 carats total. Approximately G/H color and SI clarity. Bez...
Category
2010s Modern Diamond More Necklaces
Materials
Diamond, 18k Gold, White Gold
Vivid Diamonds 6.37 Carat Straight Line Diamond Tennis Necklace
Located in Miami, FL
Exquisite Vivid Diamonds Straight Line diamond tennis necklace crafted in Yellow Gold, showcasing 168 round brilliant cut diamonds weighing 6.37 carats total, G color, VS-SI clarity....
Category
21st Century and Contemporary Modern Diamond More Necklaces
Materials
Diamond, 14k Gold, Yellow Gold
21st Century 18 Karat White Gold and G VS Diamond Lariat Necklace
Located in Palermo, Italy PA
An elegant statement piece. The necklace contains 3.9 carats of white diamonds (G VS) set into 18-karat white gold.
Looking for a set? This collection has several earrings, rings, ...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, White Gold
Victorian Diamond Silver Gold Necklace
Located in Los Angeles, CA
Victorian diamond and silver over gold necklace circa 1890.
DETAILS:
DIAMONDS: one hundred sixty-three circular old-cut diamonds totaling approximately 11.00 carats, approximately ...
Category
1890s Victorian Antique Diamond More Necklaces
Materials
Diamond, Gold, Silver
SCARSELLI Diamond Necklace in Platinum
By SCARSELLI
Located in New York, NY
Scarselli is featuring a platinum 12.88 carat mix marquise and round brilliant cut diamonds necklace. The hand-made setting filled with Scarselli quality E diamonds VS clarity. Lock...
Category
2010s Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Platinum
Certified Heart Shape Ruby & Diamond Necklace in 18 Karat White Gold
Located in Great Neck, NY
Heart shape ruby weighing 3.94 cts
Diamonds weighing .29 cts
Set in 18k white gold necklace
Comes with 18k white gold chain
Category
2010s Modern Diamond More Necklaces
Materials
Diamond, Ruby, 18k Gold
Cartier Rose Gold Diamond & Onyx Amulette De Cartier Necklace
By Cartier
Located in London, GB
An 18k rose gold Cartier pendant from the Amulette de Cartier collection. The pendant comprises of a circular talisman, set with onyx and complemented by a single 0.09ct round brilli...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, Onyx, 18k Gold, Rose Gold
Antique Old Mine-cut Diamond Platinum Cross Pendant
Located in Los Angeles, CA
Antique diamond and platinum cross pendant circa 1900.
SPECIFICATIONS:
DIAMONDS: one hundred fifteen old mine and rose-cut diamonds totaling approximately 1.55 carats, approxima...
Category
Early 1900s Edwardian Antique Diamond More Necklaces
Materials
Diamond, Platinum
Diamond Necklace
Located in New York, NY
The necklace features small rectangular links with rounded edges, pave set with round brilliant cut diamonds with total weight of 31.86ct, color F-G, clarity VS. Width: 17mm. Length...
Category
Late 20th Century Artist Diamond More Necklaces
Materials
Diamond, 18k Gold
Alexander 42 Carat Emerald Cut Diamond Tennis Necklace 18 Karat White Gold
Located in BEVERLY HILLS, CA
Exquisite and timeless diamonds tennis necklace. Created by Alexander Beverly Hills.
125 emerald cut diamonds, 42.00 carats total. Approximately G/H color and VS clarity. Four prong ...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, White Gold
LB Exclusive 14K Yellow Gold 0.17 Ct Diamond Bar Necklace
By LB Exclusive
Located in Southampton, PA
This elegant LB Exclusive 14K Yellow Gold 0.17 ct Diamond Bar Necklace is the perfect accessory. The necklace is made with a simple 14K yellow gold chain, highlighting a gorgeous 14K...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, Yellow Gold
Sacchi Lavender Jade Gemstone and Diamonds 18 Karat Satin Yellow Gold Pendant
Located in Rome, IT
Exquisite Lavender Jade Gemstone Satin Yellow Gold Pendant Necklace embellished with White Diamond, from Sacchi’s “Burlesque” Collection, hand-crafted with lost-wax casting technique...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
White Diamond, Jade, Diamond, 18k Gold, Yellow Gold
LB Exclusive 18K Yellow Gold 0.08 Ct Diamond Evil Eye Necklace
By LB Exclusive
Located in Southampton, PA
An eye-shaped pendant measuring .15” long and 0.25” wide makes a statement on this 18K Yellow Gold pendant necklace. Suspended at the center of a 15” chain, it features a glittering ...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
Midcentury Vintage Radiant Star Sapphire and Diamond Pendant
Located in Stamford, CT
Diamond clusters of flowers form a halo of radiance around an opalescent star sapphire in this mid twentieth century pendant of 14kt white gold. The diamonds, deeply set, are modern ...
Category
Mid-20th Century Contemporary Diamond More Necklaces
Materials
Diamond, Star Sapphire, 14k Gold
IGI Certified Untreated Burmese Ruby & Diamond Yellow Gold Pendant Necklace
Located in Birmingham, GB
Fine Certified Untreated Deep Red Burmese Ruby & Diamond Yellow Gold Pendant Necklace.
Beautiful and rare natural ruby. Deep red colour, Burmese in origin and untreated. As rare and...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Ruby, Gold, 14k Gold, Yellow Gold
8.20ct Diamond Chain Necklace Hammer Finished 18k White Gold
Located in BEVERLY HILLS, CA
Grand diamond chain necklace. Every other link with pave set diamonds and every other link hammer finished.
8.20 carats of round brilliant diamonds, approximately G/H color and SI cl...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Gold, 18k Gold, White Gold
H. Stern 18k yellow Gold Heart and Diamond Necklace
By H. Stern
Located in Los Angeles, CA
Beautiful H. Stern necklace with gold hearts and some small diamond rounds throughout. Handmade in 18k yellow gold.
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, Yellow Gold
Radiant Bicolor Watermelon Tourmaline Pink Green Pendant 14 Karat White Gold
By Alberto
Located in GREAT NECK, NY
14K White Gold
1 Radiant Bicolored Tourmaline at 5.84 Carats - Measuring 13.2 x 8.9 mm
5 Round White Diamonds at 0.05 Carats - Clarity: SI / Color: H-I
Fine one-of-a-kind craftsmans...
Category
2010s Contemporary Diamond More Necklaces
Materials
White Diamond, Tourmaline, Diamond, 14k Gold, White Gold
45.0 Carat Round Brilliant White Diamond Necklace in 18K White Gold
Located in Central, HK
A gorgeous diamond necklace is a staple in everyone's wardrobe! This 45 carat round brilliant white diamond necklace features GH color diamonds in SI1 clarity. There are 108 round di...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, 18k Gold, White Gold
Roberto Coin Flower Necklace Collar
By Roberto Coin
Located in Saint Louis, MO
Each item in Roberto Coin's Princess collection is hand-chiseled into a regal design.
Crafted in 18kt yellow gold this floral-motif necklace is fashionable and feminine.
Accented wi...
Category
Early 2000s Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, Yellow Gold
8 Ct Brilliant Cut Diamond Long Necklace in White & Pink 14 K Gold 27 Gm
Located in New York, NY
Very Fashionable and in right now is the long opera length necklaces .
This is a 28 inch long necklace with 8 ct of brilliant round cut diamonds.
There are 4 stations of rose gold de...
Category
2010s Diamond More Necklaces
Materials
Diamond, Gold, 14k Gold
Celestial Crescent Moon Pendant Necklace, w Diamonds in 14K Yellow Gold
Located in Austin, TX
This diamond crescent moon necklace will keep your stars all in alignment! The gorgeous details in the celestial moon design is perfect for someone that loves details. The details fo...
Category
2010s Contemporary Diamond More Necklaces
Materials
Diamond, 14k Gold, Yellow Gold
14K Paperclip Necklace with Pave Diamond Lobster Clasp Yellow Gold
Located in Boca Raton, FL
Paperclip Necklace with Pave Diamond Lobster Clasp in 14K Yellow Gold. (46) Round Brilliant Cut Diamonds weighing .15 carat total weight, G-H in color and VS in clarity are expertly...
Category
2010s Diamond More Necklaces
Materials
Diamond, 14k Gold, Yellow Gold
Large Diamond Starfish Pendant Necklace Set in 18k White Gold
Located in London, GB
A lovely modern diamond set starfish pendant set in 18k white gold.
The pendant is pave set throughout with 32 round brilliant cut diamonds within a starfish motif. Due to the desig...
Category
2010s Modern Diamond More Necklaces
Materials
Diamond, Gold, 18k Gold, White Gold
Spessartite Garnet Necklace 7.39 Carat Shield
By Merkaba
Located in Beverly Hills, CA
Remarkable 7.39 carat fancy Shield Spessartite Garnet, suspending from a 0.27 carat E/VS1 diamond hexagon, and a three dimensional, signature Merkaba triangle, set with a total of 0....
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Garnet, Multi-gemstone, Mandarin Garnet, Platinum
14K White Gold 1 1/10 Carat Diamond Floral Cluster 4 Station Adjustable Necklace
Located in New York, NY
This delicate station necklace is created in 14k white gold and features 1 1/10ct TDW of diamonds. Four glittering, prong set, round cut diamond clusters are set along a box chain th...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, White Gold, 14k Gold
Gold Pickleball Paddle with Diamond Necklace in 14k Yellow Gold Pickle Ball
Located in Austin, TX
The details for this beautiful necklace are listed below:
Metal Quality: 14 karat yellow gold
Diamond Number: 1
Diamond Shape: Round Brilliant
Diamond Total Weight: .19 carat
Diamo...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, 14k Gold, Yellow Gold
18 Karat Yellow Gold Three Drop Necklace with Uncut Diamonds
By Manjrie
Located in Singapore, SG
This stunning necklace is festooned with 3 Polki Diamonds (Uncut Diamonds) pendants set in 18 Karat Yellow Gold, adding shine to your eternal sparkle!
Size: Adjustable. 16in - 18in.
...
Category
2010s Contemporary Diamond More Necklaces
Materials
Diamond, Yellow Gold, 18k Gold
Carved Lapis and Diamond Pendant, 14K
Located in New York, NY
A Carved Lapis and Diamond Pendant made in 14 Karat Yellow Gold. The length is 1.25 inches. The lapis weighs appx. 14 carats and the diamonds weigh appx. 0.20 carats. The total weigh...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, 14k Gold
Diamond Ruby Emerald Sapphire Amethyst Tourmaline Yellow Gold Pendant Necklace
Located in Naples, IT
This Pendant is made of 14K Yellow Gold.
This Pendant has 0.55 Carats of White Brilliant Cut Diamonds.
This Pendant has a 0.18 Carats Ruby.
This Pendant has 0.16 Carats of Blue Sapph...
Category
21st Century and Contemporary Art Nouveau Diamond More Necklaces
Materials
Amethyst, Diamond, White Diamond, Emerald, Peridot, Ruby, Sapphire, Blue...
0.23 Carat Total Weight Pave Diamond Butterfly Station Necklace, 14k White Gold
Located in Houston, TX
This 14 karat white gold station necklace features 5 butterflies with 0.23 carat total weight in diamonds set in 14 karat white gold. It is an 18" adjustable chain with lobster clasp...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, 14k Gold, White Gold
Bulgari Parentesi Adjustable Length Diamond Pendant Necklace in 18k Rose Gold
By Bvlgari
Located in Philadelphia, PA
Bulgari Parentesi adjustable length diamond pendant necklace in 18k rose gold
The pendant features 64 round brilliant cut diamonds totaling approximately 1.18 carat with F-G color a...
Category
21st Century and Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, Rose Gold
18 Karat Rose Gold Pendant Necklace with Diamonds and Heart Cut Rubellite
Located in Berlin, DE
This Plum Blossom contemporary pendant necklace is in 18 karat rose gold, with detachable 4,84 carats rubellite in heart shape cut, and 5 round diamonds. This collection was featured...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Rubelite, Tourmaline, Gold, 18k Gold, Rose Gold,...
Alexander 7.44ct Baguette Diamond Heart Necklace Illusion Set 18k White Gold
Located in BEVERLY HILLS, CA
Modern illusion set diamond heart necklace with tapered baguette diamonds, by Alexander Beverly Hills.
7.44 carats of tapered baguette and round diamonds, approximately G/H color an...
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, White Diamond, Gold, 18k Gold, White Gold
Diamond Pendant
Located in Geneva, CH
Pendant in 18kt white gold set with marquise, pear-shaped, baguette and princess cut diamonds 3.26 cts and 232 diamonds 2.71 cts
Category
21st Century and Contemporary Contemporary Diamond More Necklaces
Materials
Diamond, 18k Gold, White 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 “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. 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 vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.