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Diamond Jewelry

2,677
201,101
1,754
to
33,028
133,818
40,090
534
470
276
406
3,956
45,089
153,393
1,617
1,281
3,303
2,120
1,380
2,481
2,570
2,863
4,021
3,642
224
2,788
2,181
1,972
1,969
1,963
138,065
62,299
2,491
172,894
91,524
75,047
52,273
55,101
202,855
37,469
23,659
33,891
22,324
74294
21291
18085
13621
9183
to
46,141
40,980
17,527
5,680
4,919
4,248
2,219
2,145
599
529
448
311
311
186
99
25
10
8
Gemstone: Diamond
AGL Thai Certified 6.19 Carat Emerald Cocktail Ring
Located in Bangkok, TH
A new 6.19 carat emerald ring. The emerald has been certified by AGL Thai as a natural emerald with minor oil. The total diamond weight is 1.23 carat and the ...
Category

2010s Diamond Jewelry

Materials

Diamond, Emerald, 18k Gold

16.9 Carat Chrysoberyl Diamond Gold Ring, 1990
Located in Herzelia, Tel Aviv
16.9 Carat Chrysoberyl Diamond Gold Ring. Center stone Chrysoberyl weighting 16.94 Ct on a wide-band engraved with lattice design accented with brilliant-cut Diamonds. Originally purchased on a Sotheby’s auction London. 1990. A very unusual and interesting design, almost a gunmetal polished Gold that looks amazing on hand. The three main varieties of chrysoberyl are ordinary yellow-to-green chrysoberyl, cat's eye or cymophane, and alexandrite. This particular stone is changing colour with different ambient lighting...
Category

Late 20th Century Diamond Jewelry

Materials

Chrysoberyl, Diamond, Gold

14.76 Carats Natural Zambian Emerald with Diamonds 4.74 Carats and 14k Gold
Located in New York, NY
This is a stunning natural Zambian Emerald bracelet which has Emerald of very high quality and diamonds of very good quality . it has vsi clar...
Category

2010s Indian Diamond Jewelry

Materials

Diamond, Emerald, 14k Gold

TIFFANY & Co. Platinum .42ct Diamond Cross Pendant Necklace
Located in Los Angeles, CA
TIFFANY & Co. Platinum .42ct Diamond Cross Pendant Necklace Metal: Platinum Chain: 16" long Pendant: 0.71"(18.1mm) long x 0.52"(13.2mm)" wide Diamond: 11 round brilliant diamonds, c...
Category

2010s American Diamond Jewelry

Materials

Diamond, Platinum

Vintage Statement Open Gold Links and Pave Brilliant Cut Diamond Band Ring
Located in Montreal, QC
Simply Beautiful! Vintage Lock Open Polished Gold Links and Diamond Band Ring. Featuring a link Hand set with Round Brilliant Cut Diamonds, weighing approx. 0.13tcw. Hand crafted in ...
Category

21st Century and Contemporary Modern Diamond Jewelry

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Art Deco Style Pink Sapphire and White Diamond Gold Bangle
Located in Hong Kong, HK
Art-Deco Style Pink Sapphire and White Diamond Gold Bangle: An elegant bangle, it features 5 pink sapphires weighing 0.15 carat and 4 white round brilliant diamonds weighing 0.10 ca...
Category

2010s Art Deco Diamond Jewelry

Materials

Diamond, White Diamond, Pink Sapphire, Gold, 18k Gold, 22k Gold, White G...

1.75 Carat Diamond Open Work Dome Gold Cocktail Cluster Ring
Located in Stamford, CT
Handmade 1900's diamond dome cocktail ring. 17 old mine brilliant cut diamonds, set in a 14k yellow gold setting with open scroll work and cut out top. 17 old mine brilliant cut di...
Category

Early 20th Century Diamond Jewelry

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Chaumet Paris 1960 Modernist Pendant Brooch In 18Kt Gold With Coral And Diamonds
Located in Miami, FL
Pendant brooch designed by Chaumet. Fabulous pendant-brooch, created in Paris France by the Jewelry house of Chaumet, back in the 1960. Designed with fluted and textured patterns an...
Category

1960s French Modernist Vintage Diamond Jewelry

Materials

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

Royal Blue Kashmir Sapphire and Diamond Ring, circa 1920
Located in London, GB
Royal Blue Kashmir sapphire and diamond ring. Set to centre with a single cushion shape old cut natural unenhanced Royal Blue Kashmir sapphire in an...
Category

1920s Unknown Vintage Diamond Jewelry

Materials

Diamond, Blue Sapphire, Platinum

Van Cleef & Arpels Alhambra Coral Diamond Yellow Gold Ring
Located in Holland, PA
Van Cleef & Arpels Alhambra 18k Yellow Gold Diamond Coral Ring With 1 Round brilliant cut diamond .06ct F/VS1 Alhambra cut coral This ring comes with certificate of authenticity. De...
Category

20th Century French Diamond Jewelry

Materials

Coral, Diamond, 18k Gold

Ceylon Sapphire and Diamond Ring
Located in Sydney, NSW
An 18ct Yellow Gold ring showcasing a Ceylon Sapphire (1.59ct), and 16 Diamonds totalling 0.18ct.
Category

2010s Australian Victorian Diamond Jewelry

Materials

Diamond, Sapphire, 18k Gold

Emerald, Diamonds, 14 Karat Yellow Gold, Round Shape Emerald Pendant necklace
Located in Istanbul, TR
Emerald, Diamonds, 14 Karat Yellow Gold, Round Shape Emerald Pendant necklace. 14 karat white gold Pendant size - 12 mm Chain size - 43 sm Total weight: 4.50 g Set with emerald, co...
Category

2010s Turkish Modern Diamond Jewelry

Materials

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

18K White Gold Blue Sapphire Halo Necklace
Located in Old Tappan, NJ
18K white gold double chain halo necklace with accented diamonds on the chain. There are a total of 42 round brilliant-cut diamonds weighing 0.46 carats total weight. In the center t...
Category

2010s Unknown Contemporary Diamond Jewelry

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

AJD Golden Brown Tourmaline and 18 Karat Gold Ring
Located in Raleigh, NC
Brilliant Golden Brown Tourmaline in 18K rich yellow gold ring. This unique ring features an oval sparkling Tourmaline, 9.7 X 7.4 MM, est 2.6 ct. enh...
Category

20th Century Brazilian Artisan Diamond Jewelry

Materials

Diamond, Blue Sapphire, Tourmaline, 18k Gold, Gold

GRS Certified 0.92 Carat Natural Padparadscha Sapphire Diamond Ring
Located in Dubai, UAE
If you want something unique and for convenient price so Padparadscha sapphire diamond ring is right for you. Padparadscha sapphire is one of the rarest gemstones of the world. Suns...
Category

21st Century and Contemporary Emirian Modern Diamond Jewelry

Materials

Padparadscha Sapphire , Sapphire, Diamond, 18k Gold

Antique Cameo Brooch with 14K Gold Frame and Diamond
Located in Atlanta, GA
This is an antique cameo brooch with 14K gold frame and diamond. This brooch is from the second half of the 19th century. This classic cameo is c...
Category

Late 19th Century Italian Victorian Antique Diamond Jewelry

Materials

Diamond, 14k Gold

Handcraft Brazilian Emerald 18 Karat White Gold Diamonds Cocktail Ring
Located in Marcianise, IT
For any problems related to some materials contained in the items that do not allow shipping and require specific documents that require a particular period, please contact the selle...
Category

21st Century and Contemporary Italian Artisan Diamond Jewelry

Materials

Diamond, Emerald, 18k Gold, White Gold

Classic Diamond Drop Earrings
Located in New York, NY
A stunning pair of earrings! Almost 7 carats of sparkle! 6.87 carats of round brilliant cut diamonds set in pear and marquise shaped 18k white gold. The round stones give the...
Category

21st Century and Contemporary Diamond Jewelry

Materials

Diamond, White Diamond, 18k Gold

Dalben Rose Cut Diamonds White Gold Small Floral Earrings
Located in Como, IT
Dalben design diamond floral drop earrings mounted in 18 kt white gold with 6 white rose cut diamonds total weight 0,47 carat. Earrings dimension: max width 10 mm , height without le...
Category

21st Century and Contemporary Italian Contemporary Diamond Jewelry

Materials

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

Auction - 2.11 Carat Round Diamond 5 Stone Ring
Located in New York, NY
5 Stones weighing over 40 points each weighing 2.11 Carats. Diamonds are IJ color, SI clarity. Set in 18 Karat White Gold
Category

2010s Diamond Jewelry

Materials

Diamond, 18k Gold, White Gold

1970s Mediterranean Coral Diamond Gold Dome Ring
Located in Berlin, DE
This ring in shrimp design was fashioned in the 1970's in Italy. Carved Mediterranean coral accented by 19 pavé diamonds weighing approximately 0,39 carats. Mounted in 14K white gol...
Category

Late 20th Century Italian Diamond Jewelry

Materials

Coral, Diamond, 14k Gold, White Gold

Cartier 0.51 Carat Diamond Platinum Solitaire Déclaration D'Amour Ring
Located in Tokyo, JP
Brand : Cartier Name : Solitaire DÉCLARATION D'Amour Material : Diamond (D0.51ct F-VS1-VG), Pt950 platinum Comes with : Cartier Case,GIA Certificate(Aug 2008),Cartier repair certifi...
Category

Early 2000s French Diamond Jewelry

Materials

Diamond, Platinum

9.98 Carat Emerald Cabochon and Diamond Cocktail Engagement Ring
Located in Bangkok, Thailand
A gorgeous Zambian Emerald stone weighing 9.98 carats of an ideal colour and great lustre, completely transparent with very few naturally occurin...
Category

21st Century and Contemporary Thai Modern Diamond Jewelry

Materials

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

JR Rose Cut Diamond Dangling Ring 18 Karat White Gold
Located in Hong Kong, HK
JR Rose cut Diamond Dangling Ring 18 Karat White Gold Inspired by the beauty of a rain drop, Our eccentric Dangling diamond ring is an absolute s...
Category

21st Century and Contemporary Hong Kong Modern Diamond Jewelry

Materials

Diamond, White Gold, 18k Gold

Stefan Hafner Chandelier Lariat Diamond White Gold Necklace
Located in New York, NY
This magnificent Stefan Hafter chandelier lariat necklace is crafted in 18k white gold and set with brilliant-cut round diamonds of an estimated 2.77 carats. A delicate and timeless ...
Category

2010s Italian Diamond Jewelry

Materials

Diamond, 18k Gold, White Gold

Cartier 1895 1.03 Carats Radiant Cut Diamond Solitaire Engagement Ring
Located in New York, NY
A radiant cut engagement ring made, signed and numbered by Cartier. Part of the 1895 Collection of Cartier. Set with a 1.03 carats radiant cut diamond center stone that GIA certified...
Category

21st Century and Contemporary American Modern Diamond Jewelry

Materials

Diamond, Platinum

J.E. Caldwell & Co. Art Deco Old European Diamond Twin Bypass Ring in Platinum
Located in Philadelphia, PA
J.E. Caldwell & Co. Art Deco Old European cut diamond twin bypass ring set in platinum. The centerpieces of this ring are two Old European cut diamonds both accompanied by GIA repor...
Category

1930s Art Deco Vintage Diamond Jewelry

Materials

Diamond, Platinum

18ct Yellow Gold Baguette Cut Diamond Ring
Located in Cape Town, ZA
Set in 18carat yellow gold and weighing 9.8 grams, this ring features 85 Baguette Cut Diamonds weighing 0.42carat in total. The ring size is an M.
Category

21st Century and Contemporary Unknown Modern Diamond Jewelry

Materials

Diamond, 18k Gold, Yellow Gold

18k Gold Deco Style Pendant with Opal and Diamonds
Located in New York, NY
Art Deco is the influence for the design of this modern pendant. This piece features a opal center rosecut stone with a black onyx backing to create a rich blue/green color. Fabricated in 18k gold, with a geometric rim of diamonds around the opal. This is a fashionable pendant which is beautiful worn alone, or layered with other necklaces. The pendant hangs from a gold round link chain...
Category

21st Century and Contemporary American Contemporary Diamond Jewelry

Materials

Diamond, Opal, 18k Gold

Boucheron Diamond Onyx 18 Karat White Gold Trouble Snake Pendant Necklace 80cm
Located in Tokyo, JP
Brand:BOUCHERON Name:Trouble pendant necklace Material :Diamond, Onyx, 750 K18 WG white gold Comes with:Boucheron Box,Case, Pouch,Boucheron Guarantee (...
Category

Early 2000s French Diamond Jewelry

Materials

Diamond, Onyx, 18k Gold, White Gold

Cellini Jewelers 18 Karat White Gold, 8.85 Carat Ruby and Diamond Cherry Brooch
Located in New York, NY
Made exclusively for Cellini Jewelers NYC .This lovely 18 karat white gold cherry brooch is meticulously set with round Rubies for the fruit & round Diamonds for the stem. The cherry...
Category

Early 2000s German Modern Diamond Jewelry

Materials

Diamond, Ruby, 18k Gold, White Gold

Lavender Jadeite, Amethyst and Diamond 18K Rose Gold Cocktail Ring
Located in Beverly Hills, CA
One lavender jadeite, amethyst and diamond 18K rose gold cocktail ring featuring one oval cabochon jadeite measuring 17.52 x 14.02 x 6.50 millimeters with a Mason Kay Grade A certifi...
Category

21st Century and Contemporary Diamond Jewelry

Materials

Jade, Amethyst, Diamond, 18k Gold, Rose Gold

Stephen Russell Old European Cut Diamond Engagement Ring, 3.35 Carat, E VS2
Located in New York, NY
Old European Cut Diamond and Platinum Ring; 3.35ct; 32 Diamonds .25ct, by Stephen Russell. Accompanied by GIA Certificate No.115...
Category

2010s American Diamond Jewelry

Materials

Diamond, Platinum

GIA Rare 4 ct. Colombian Emerald & Diamond Ballerina Ring in 18k Yellow Gold
Located in Honolulu, HI
GIA Rare 4 ct. Colombian Emerald & Diamond Ballerina Ring in 18k Yellow Gold. This stunning ring features a 4 carat octagonal, step cut, transparent green Colombian Emerald, surround...
Category

Late 20th Century Colombian Diamond Jewelry

Materials

Diamond, Emerald, Yellow Gold, 18k Gold

Van Cleef & Arpels No Enhancement Burmese 12.01 carat Sapphire Diamond Ring
Located in New York, NY
Van Cleef and Arpels Burmese sapphire and diamond ring. Set with natural no enhancement oval old cut Burmese 12.01 carat sapphire, surrounded by 14 fine quality brilliant shape dia...
Category

1980s French Artist Vintage Diamond Jewelry

Materials

Diamond, Sapphire, 18k Gold

Elongated Ethiopian Opal and Diamond Pendant in 14KW Gold
Located in New York, NY
This vibrant elongated Ethiopian Opal and diamond pendant is bezel set in 14 karat white gold. There are sparkling brilliant cut diamonds on the bail for a beautiful accent. This pen...
Category

2010s Diamond Jewelry

Materials

Diamond, Opal, Gold, 14k Gold, Yellow Gold

Oxblood Coral Diamond Gold Ring
Located in Austin, TX
A stunning oxblood coral and diamond cocktail ring. The ring features a beautiful deep red "oxblood" coral cabochon set in 18k white gold and surroun...
Category

2010s Italian Diamond Jewelry

Materials

Coral, Diamond, White Diamond, 18k Gold, White Gold, Gold

Graduated White Coral Necklace
Located in New York, NY
These White Coral beads were purchased as part of an estate before being made into this classic 24 inch graduated hand strung White Coral Necklace...
Category

21st Century and Contemporary American Contemporary Diamond Jewelry

Materials

Coral, White Diamond

Tiffany & Co. Mark Coupe Resonator 18k Gold Ladies Watch 40pt Diamond Bezel
Located in Montclair, NJ
This elegant and well-made ladies' Tiffany & Co. Resonator wrist watch by Mark Coupe features a 21mm solid 18k yellow gold cushion shaped case decorated wit...
Category

Early 2000s Swiss Diamond Jewelry

Materials

Diamond, 18k Gold

Lavender Jade and Diamond 14K Yellow Gold Ring, circa 1960s
Located in Beverly Hills, CA
One lavender jade and diamond 14K yellow gold ring with ornate designer accents throughout and centering one oval cabochon jade measuring 18.5 x 14 x 8 mm. with GIA Report No. 521288...
Category

20th Century Diamond Jewelry

Materials

Jade, Diamond, Gold, 14k Gold, Yellow Gold

Peter Suchy GIA 2.41 Carat Diamond Platinum Three-Stone Engagement Ring
Located in Stamford, CT
Diamond engagement ring. GIA certified 2.41ct emerald cut diamond in a platinum three-stone setting with two elongated step cut trapezoid side diamonds...
Category

21st Century and Contemporary Diamond Jewelry

Materials

Diamond, Platinum

Scarselli Ring 5 Carat Fancy Vivid Yellow Radiant Cut Diamond in Platinum
Located in New York, NY
From SCARSELLI, this beautiful statement ring features a 5.00 carat Fancy Vivid Yellow Radiant Cut Diamond of VVS2 clarity flanked with trapezoid cut white diamonds 0.70carat (.35 ea...
Category

2010s American Contemporary Diamond Jewelry

Materials

White Diamond, Yellow Diamond, 18k Gold, Platinum

Diamond 18k Yellow Gold Necklace, circa 1970s
Located in Beverly Hills, CA
One diamond 18K yellow gold necklace with weave design featuring eighty round brilliant cut diamonds totaling 1 ct. With Italian hal...
Category

20th Century Diamond Jewelry

Materials

Diamond, Yellow Gold, 18k Gold

Citrine and Diamond Ring in 18K Yellow Gold, circa 1960s
Located in Beverly Hills, CA
Sleek orangey citrine and diamond ring in high polish 18K yellow gold centering one emerald cut citrine weighing 18 ct. framed by eight round brilliant cut diamonds totaling 0.80 ct....
Category

20th Century Diamond Jewelry

Materials

Citrine, Diamond, Yellow Gold, Gold, 18k Gold

Syna Yellow Gold Owl Pendant with Diamonds
Located in Fort Lee, NJ
Created in 18 karat yellow gold Diamonds 0.10 ct approx Chain sold separately Crafted with 18 karat yellow gold, this pendant is enriched with 0.10 carats of dazzling diamonds, nee...
Category

2010s Unknown Contemporary Diamond Jewelry

Materials

Diamond, Brown Diamond, 18k Gold, Yellow Gold

WGI certified 10.70 carat emerald cut diamond - 1.40 carat trillion cut diamonds
Located in Monte-Carlo, MC
"950" platinium elegant ring designed with 1 emerald cut center natural diamond weighing 10.70 carat surronded by 2 trillion natural cut diamonds weighing 1.40 carat. Quality of the...
Category

2010s Diamond Jewelry

Materials

Diamond, 18k Gold, Platinum

GRS 18K 2.06 ct Unheated Pigeon Blood Ruby Antique Art Deco Engagement Ring
Located in Kaohsiung City, TW
*GRS 18K 2.06 ct Pigeon Blood Ruby&Diamonds Antique Art Deco Engagement Ring* GRS-Certified natural pigeon blood ruby as the center stone wei...
Category

21st Century and Contemporary Taiwanese Contemporary Diamond Jewelry

Materials

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

Breitling Bentley A28362 Flying B Aftermarket Diamond Watch
Located in Boca Raton, FL
Brand: Breitling MPN: A28362 Model: Bentley Flying B Case Material: Stainless Steel Case Diameter: 57mm x 40mm Crystal: Sapphire crystal Bezel: Stainl...
Category

2010s Swiss Diamond Jewelry

Materials

Diamond, White Diamond, Stainless Steel

White South Sea Pearl Diamonds 18 Karat White Gold Ring
Located in Bangkok, TH
White South Sea Pearl Diamonds 18 Karat White Gold Ring White 18 Karat Gold is made in the form of frozen brushwood, which glitters in the sun, 40 Diamonds add glitter to it. With it...
Category

21st Century and Contemporary Thai Art Deco Diamond Jewelry

Materials

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

Vintage Ladys 14k White Gold Croton Diamond Watch
Located in Addison, TX
A stunning Ladies true vintage 14k white gold croton diamond watch. The vintage patina look is something that is desired by majority of vintage je...
Category

Early 20th Century North American Art Deco Diamond Jewelry

Materials

Diamond, 14k Gold, White Gold

Sapphire and Diamond Platinum Ring by Omi
Located in Beverly Hills, CA
One sapphire and diamond blackened platinum finish ring by OMI centering one prong set, cushion cut deep royal blue sapphire weighing approximately 2.75 ct. with sapphire and diamond accents. From the Omi Prive...
Category

21st Century and Contemporary Diamond Jewelry

Materials

Diamond, Sapphire, Platinum

Russian Alexandrite 18k Gold Antique Design Ring with Diamonds
Located in Bangkok, TH
Exceptional Russian Alexandrite Ring wrapped in an antique chequerboard design – popular motif in the ’60s of the XIX century. Alexandrite w...
Category

1860s Thai Romantic Antique Diamond Jewelry

Materials

Alexandrite, Diamond, 18k Gold

Platinum and Diamond Eternity Band
Located in Washington Depot, CT
Vintage Platinum and Diamond Eternity Band Size 6.75 This sparkling eternity band features 30 round brilliant cut diamonds set in cl...
Category

20th Century Diamond Jewelry

Materials

Diamond, Platinum

Roman Malakov GIA Certified 23.45 Carat Total Fancy Intense Yellow Necklace
Located in New York, NY
An important and very rare diamond necklace showcasing a row of graduating radiant cut fancy intense yellow diamonds, surroun...
Category

21st Century and Contemporary American Contemporary Diamond Jewelry

Materials

Diamond, Yellow Diamond, Yellow Gold, Platinum

Untreated Ruby and Diamond Ring 3.02 Carat
Located in New Orleans, LA
A dazzling 3.02-carat untreated ruby radiates at the center of this mesmerizing stone-led design. Two teardrop shaped diamonds are set, one on each si...
Category

20th Century Mozambican Diamond Jewelry

Materials

Diamond, Ruby, 18k Gold, Platinum

Peter Suchy GIA Certified 1.10 Cara Diamond Solitaire Gold Engagement Ring
Located in Stamford, CT
Ideal Brilliant cut diamond engagement ring. GIA certified center stone, set in a 18k white gold setting with 20 round accent diamonds. 1 round diamond, approx. total weight 1.10ct...
Category

21st Century and Contemporary Diamond Jewelry

Materials

Diamond, Gold, 18k Gold, White Gold

Fine Edwardian Three Stone Ring Platinum Diamond Ring
Located in Zurich, Zollstrasse
This antique ring was skillfully handcrafted sometime during the Edwardian design period ( 1900-1920 ). The setting is platinum and features 3 larger brillinat cut Diamonds weighing ...
Category

20th Century Edwardian Diamond Jewelry

Materials

Diamond, Platinum

AGL 5.39 Carat Pear Paraiba Tourmaline Platinum Ring with Sapphire and Diamonds
Located in Charleston, SC
Ceylon Blue Sapphires and diamonds gracefully surround this spectacular 5.39 Carat elongated pear-shaped Paraiba Tourmaline. This one of a kind ring was designed and hand crafted al...
Category

21st Century and Contemporary American Art Deco Diamond Jewelry

Materials

Sapphire, Tourmaline, Paraiba, Diamond, Platinum

Shop Antique and Vintage Diamond Rings, Diamond Necklaces and Other Diamond Jewelry and Watches on 1stDibs

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And 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. 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. 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 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).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

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

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