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Vintage Hollywood Red Carpet 130 Carats Diamond Necklace
Located in New York, NY
Vintage Hollywood Red Carpet 130 Carats Diamond Necklace With more than 130 carats, baguette, round
Category

Vintage 1950s American Modern Choker Necklaces

Materials

Diamond, Platinum

Red Ruby Ring with Diamonds in Yellow Gold
Located in New York, NY
RED RUBY RING WITH DIAMONDS IN YELLOW GOLD 14k yellow gold Ring size: 8 Sapphire: 5.45ct, 10x10mm
Category

2010s More Rings

Materials

Diamond, Ruby, Yellow Gold

Modern 18k YG 2ct Diamond Pavé Red String Bracelet
By THEVAULT15
Located in Boostedt, DE
4mm - 0,157 inches -Total weight: 2,1 ct diamonds - G/H color -Love red nylon string -Comes in our
Category

2010s Modern Bracelets

Materials

Diamond, 18k Gold, Yellow Gold

Vintage Platinum Genuine Red Spinel And Diamond Ring
Located in New York, NY
of a 1.06CT oval cut red spinel and 0.37CT-TW F-VS round cut diamonds creates an elegant and eye
Category

Vintage 1950s American Retro Fashion Rings

Materials

Diamond, Spinel, Platinum

Vintage Baguette Red Garnet and Diamond Gold Earrings
Located in Montreal, QC
Simply Beautiful! Finely detailed Vintage Red Baguette Garnet and Diamond Gold Earrings. Each
Category

21st Century and Contemporary Modern Clip-on Earrings

Materials

Diamond, Garnet, Gold, 14k Gold, Yellow Gold

Vintage Red Ruby and Diamond Platinum Cocktail Ring
Located in Montreal, QC
Simply Beautiful! Stylish and Finely detailed Vintage Ruby and Diamond Platinum Ring. Centering set
Category

Late 20th Century Modernist Cocktail Rings

Materials

Diamond, Ruby, Platinum

Key Pendant Necklace 18k White Gold Pink Enamel 162 Diamonds 1.90ct Amethyst
By Victor Mayer
Located in Pforzheim, DE
: VICTOR MAYER Collection: Material: 18k white gold Vitreous enamel: red Diamonds: 162 diamonds, total
Category

21st Century and Contemporary German Art Deco Pendant Necklaces

Materials

Amethyst, Diamond, 18k Gold, White Gold, Enamel

RED RUBY DIAMONDS Pendant Handcrafted in 18K White Gold
Located in Buckingham , Buckinghamshire
Statement Ruby & Diamond Octagonal Pendant — 18ct White Gold A commanding Art Deco–inspired
Category

21st Century and Contemporary Asian Art Deco Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

David Webb 18K Yellow Gold Red Coral and Diamond Earrings
By David Webb
Located in Chicago, IL
David Webb 18K Yellow Gold Red Coral and Diamond Earrings, 7 Carats An iconic pair of earrings by
Category

Vintage 1950s British Modern Clip-on Earrings

Materials

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

Le Vian Red Carpet Earrings Featuring Blackberry Diamonds
Located in רמת גן, IL
Ideal and natural round brilliant diamond in a 0.72 carat G SI2 graded by GIA Laboratory with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

3.37 Carat Red Ruby and Diamond Platinum Ring
Located in London, GB
and boasts a deep, rich red colour. It sits on an exquisite platinum band and is supported on each
Category

2010s British Modern Engagement Rings

Materials

Diamond, Ruby, Platinum

Diamond and Red Enamel Necklace in 14kt Yellow Gold - 0.13ctw Natural Diamond
Located in West Hempstead, NY
Add a pop of color and elegance to your jewelry collection with this stunning Diamond and Red
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold, Enamel

Yellow Gold Diamonds Red and Blue Enamel Cufflinks
Located in New York, NY
of blue and red enamel, enhanced by the luxurious sparkle of diamonds. These cufflinks are a true
Category

2010s American Cufflinks

Materials

Diamond, 18k Gold, Yellow Gold, Enamel

Red Rubelite and diamond Forget Me Knot ring
Located in Brisbane, AU
Glamorously bold and unabashedly seductive. This showstopper ring features an extraordinarily red
Category

2010s Australian Artisan Engagement Rings

Materials

Diamond, Rubelite, 18k Gold, Platinum

Spectra Fine Jewelry 8.88 Carat Red Spinel Diamond Ring
By Spectra Fine Jewelry
Located in New York, NY
8.88-carat cushion-cut red spinel with a captivating depth of color. Sourced from Tanzania and
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

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

Marquise Red Jade Diamond Ring 14k Yellow Gold
Located in Honolulu, HI
Marquise Red Jade Diamond Ring 14k Yellow Gold Ring Specifications: Metal: 14k Yellow Gold Total
Category

Late 20th Century Unknown Modern Cocktail Rings

Materials

Jade, Diamond, 14k Gold, Yellow Gold

1960s Red Coral, Onyx and Diamond Articulated Earrings
Located in Lexington, KY
This is an exceptional pair of 1960s earrings, set in 18K White gold, that features bright red
Category

Vintage 1960s Dangle Earrings

Materials

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

AGL Certified Red Sapphire Diamond Flower Cocktail Ring
Located in New York, NY
AGL Certified Red Sapphire & Diamond Flower Cocktail Ring 1 round cut red sapphire surrounded by
Category

Vintage 1970s American Cocktail Rings

Materials

Diamond, Ruby, Sapphire, 18k Gold

Vintage red spinel diamond 18k yellow gold cocktail ring
Located in Beverly Hills, CA
A bold 1980’s vintage ring showcasing a 3.50 carat cushion cut red spinel, accented by sparkling
Category

Vintage 1980s Modern Cocktail Rings

Materials

Diamond, Spinel, Gold, 18k Gold, Yellow Gold

Le Vian, Red Carpet Champagne and Chocolate Ombre Diamond Bracelet
By Le Vian
Located in Chicago, IL
Le Vian Rose Gold Diamond Bracelet from their Red Carpet Collection, features an ombré of round
Category

21st Century and Contemporary Unknown Contemporary Tennis Bracelets

Materials

Diamond, Brown Diamond, Gold, 14k Gold, Yellow Gold

Emilio Jewelry 25.28 Carat Red Carpet Diamond Necklace
By Emilio!
Located in New York, NY
: vs1-vs2 NECKLACE 18KT Gold Diamond Weight: 25.28 carats Please inquire for additional details. All
Category

21st Century and Contemporary Choker Necklaces

Materials

Diamond, 18k Gold

Impressive Red Ruby White Diamond White Gold Every Day Diamond Ring
By Natkina
Located in Genève, GE
Ring White Gold 14 K (Matching Pendant Available) Diamond 1-Round 57-0,04-4/6A Diamond 54-Round 57
Category

2010s Cocktail Rings

Materials

Diamond, Ruby, 14k Gold, White Gold

9.02 Carat Purplish Red Ruby Diamond Bracelet In Platinum
Located in Chicago, IL
diamonds beautifully. Rubies are known for their deep red color and are considered one of the four precious
Category

2010s American Contemporary Modern Bracelets

Materials

Diamond, Ruby, Platinum

Red Enamel and Diamond Pear Shaped Pendant Necklace
Located in Darnestown, MD
diamonds at the intersections. Above the pendant is a diamond that is approximately 1/5 of a carat. The
Category

Late 20th Century Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Enamel

Flower Shaped Red Ruby And White Diamond Pendant
Located in New York, NY
with White Diamonds and a Red Ruby, is truly a work of art. Weighing a total of 7.1 grams, it boasts an
Category

20th Century Indian Retro Pendant Necklaces

Materials

White Diamond, Ruby, 18k Gold, White Gold

Rare Red Coral Diamond Cocktail ring 18KT gold
Located in Boca Raton, FL
Exquisite ring made with natural red coral(undyed 100% natural and certified) diamond halo and 18KT
Category

20th Century Cocktail Rings

Materials

Coral, Diamond, Gold, 18k Gold, Sterling Silver

1.01 Carat Glacier Diamond Crimson Red Ruby Crown Ring
By Malpani Jewels
Located in Hung Hom, HK
Crimson red ruby weighing 0.28 carats is sitting on top of a 1.01 carat Glacier color diamond as a
Category

2010s Hong Kong Art Nouveau Cocktail Rings

Materials

Diamond, Ruby, 18k Gold

Vintage 1960s Red Enamel and Diamonds Domed Cocktail Ring
Located in New York, NY
Finely crafted in 18k yellow gold, platinum and red enamel with Round Brilliant cut Diamonds
Category

Vintage 1960s Dome Rings

Materials

Diamond, 18k Gold, Platinum, Enamel

Pavé Ring with Diamonds in 18 Karat Red Gold
Located in Lucerne, CH
Crafted in glowing 18 karat red gold, this ring is set with 75 brilliant-cut diamonds, totalling
Category

21st Century and Contemporary European Modern Band Rings

Materials

Diamond, Gold, 18k Gold, Yellow Gold

1.04 ct Red Ruby Diamond Ring
By Hakimi s Gem
Located in Chicago, IL
red ruby as its main stone. The ruby is accentuated by sparkling diamonds and set in an elegant design
Category

2010s Cocktail Rings

Materials

14k Gold

Triangular Diamond Earrings in 18K Gold with Red Enamel
By Goshwara
Located in New York, NY
the diamonds' sparkle, offering a modern twist on classic elegance. A striking red enamel border adds
Category

21st Century and Contemporary Unknown Dangle Earrings

Materials

Diamond, 18k Gold, Enamel

GIA Certified No-Heat Red Ruby and Diamond Platinum Ring
Located in Chicago, IL
This exquisite platinum ring showcases a GIA certified natural red ruby, completely unheated, with
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Ruby, Platinum

GIA Certified 3.50 Carat Red Oval Ruby Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
3.40 GIA certified oval cut ruby is completely unheated and displays striking, vibrant red color
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Ruby, Platinum

GIA Certified 4.17 Oval Red Ruby Cluster Diamond Earrings
Located in Chicago, IL
dazzling array of marquise and pear-shaped diamonds. Crafted in luxurious 18 karat white gold, this elegant
Category

2010s American Dangle Earrings

Materials

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

Red Earrings in Recycled Aluminium, 18kt 14kt Gold Diamond
By Estaa
Located in Mumbai, IN
, Natural Diamonds - 26/0.84cts
Category

2010s Indian Contemporary Stud Earrings

Materials

Diamond, Gold, 18k Gold, Mixed Metal, 14k Gold

4.50 Carat Red Ruby and Baguette Diamond Ring
Located in London, GB
its centre is a large, bright red ruby in a timeless oval cut, embraced by a baguette and round
Category

2010s British Art Deco Engagement Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

GRA Certified 0.70 Carat Natural Purplish Red Ruby Diamond Ring
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 2.790 grams
Category

2010s Asian Engagement Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

Crimson Red Guilloche Enamel 18k Yellow Gold Diamond Cufflinks
Located in New York, NY
These exquisite Crimson Red Guilloché Enamel Cufflinks are crafted in 18k yellow gold, showcasing
Category

2010s American Cufflinks

Materials

Diamond, 18k Gold, Yellow Gold

18k Yellow Gold Red Garnet and Diamond Statement Ring
Located in Lexington, KY
This bold contemporary ring boasts a stunning combination of 18k yellow gold, rich red garnet, and
Category

1990s Contemporary Fashion Rings

Materials

Diamond, Garnet, Gold, 18k Gold, Yellow Gold

.60 Carat Red Ruby Diamond Yellow Gold Earrings
Located in Stamford, CT
gold. 2 oval natural red rubies, SI approx. .60cts 6 single cut diamonds, H VS approx. .9cts 14k
Category

21st Century and Contemporary More Earrings

Materials

Diamond, Ruby, Gold, 14k Gold, Yellow Gold

1.35 Red Ruby Diamond White Gold Engagement Ring
Located in Stamford, CT
setting with 27 round cut diamonds accent diamonds. 1 oval red ruby, approx. 1.35 27 diamonds, G VS-SI
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Ruby, Gold, 14k Gold, White Gold

Red Rubellite White Diamond 18K Rose Gold Button Cufflinks
By Unbranded
Located in Oakton, VA
Dimensions: 1.50x1.50x0.80cm Color: 18K Rose Gold Materials: "72 White Diamonds 0.22 CT 2 MXRE
Category

21st Century and Contemporary Drop Earrings

Materials

Coral, White Diamond, 18k Gold, Rose Gold

Cushion Shaped Yellow Diamond and Red Ruby Line Bracelet
Located in New York, NY
Elevate your style with the striking beauty of the Cushion Shaped Yellow Diamond and Red Ruby Line
Category

2010s Indian Modern Link Bracelets

Materials

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

4.49 Carat Red Rubelite Tourmaline Diamond Platinum Ring
Located in Stamford, CT
Bright red rubellite tourmaline and diamond Art Deco ring. 4.49ct emerald cut center stone with 6
Category

Early 20th Century Engagement Rings

Materials

Diamond, Rubelite, Tourmaline, Platinum

Sunita Nahata Red Garnet 16.44ct. Earrings in 14KYG with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
Diamond. Red Garnet: 16.44 carat, 14X10mm size, Baguette oval shape. White Diamond: 0.15 carat, 1.20mm
Category

21st Century and Contemporary Thai Contemporary Drop Earrings

Materials

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

Sunita Nahata Red Garnet 16.10ct. Earrings in 14KWG with Diamond.
By Sunita Nahata
Located in Hong Kong, HK
Diamond. Red Garnet: 16.10 carat, 14X10mm size, Baguette oval shape. White Diamond: 0.14 carat, 1.20mm
Category

21st Century and Contemporary Thai Contemporary Drop Earrings

Materials

Diamond, White Diamond, Garnet, Gold, 14k Gold, White Gold

Red and Yellow Enamel Earrings with Emerald and Diamonds
By D Deco Jewels
Located in New York, NY
A stylish asymmetrical floral pair of enameled earrings- one red and one yellow with yellow gold
Category

21st Century and Contemporary Unknown Clip-on Earrings

Materials

Diamond, White Diamond, Emerald, Yellow Gold, Enamel

Red Natural Coral Diamond 14K Yellow Gold Abstract Ring
Located in Sewickley, PA
This striking vintage ring is beautifully crafted in 14k yellow gold and showcases a natural red
Category

Mid-20th Century Retro Cocktail Rings

Materials

Coral, Diamond, 14k Gold, Yellow Gold

Red Enamel and Diamond Pear Shaped Pendant Necklace
Located in Darnestown, MD
diamonds at the intersections. Above the pendant is a diamond that is approximately 1/5 of a carat. The
Category

Late 20th Century Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Enamel

GIA Certified 4 Carat VIVID RED Ruby Diamond Ring
Located in Chicago, IL
accented by dazzling half-moon diamonds. At the center is a 4.05 carat oval ruby, graded by GIA as Natural
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Ruby, Platinum

Bracelet in Red Gold with Diamonds
By Thomas Leyser
Located in Idar-Oberstein, DE
flexible bracelet in 14k red gold with 52 diamonds round H/SI, 2,10cts.. Length 19cm. Width 6mm.
Category

2010s German Contemporary Link Bracelets

Materials

Gold

Important Certified Imperial Red Jade Diamond Stud Earrings, Collector s Item
Located in Hong Kong, HK
RED (the actual color is a brownish- red but in the jade trade, they are referred to as red jade) jade
Category

2010s Hong Kong Stud Earrings

Materials

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

Rolex Ladies Oyster Perpetual Red Vignette Diamond Dial Ruby Diamond Bezel Watch
By Rolex
Located in Los Angeles, CA
Case Size : 24 mm Dial : Custom Red Vignette Diamond Dial (This dial is not original Rolex And has
Category

Vintage 1970s Wrist Watches

Materials

Diamond, Ruby, Stainless Steel

Ring in Red Gold with Diamonds
By Thomas Leyser
Located in Idar-Oberstein, DE
flexible memory in 18k red gold 6,3gr. with diamond baguettes 2,65cts. I(SI). Ringsize: Flexible 51-61
Category

2010s German Contemporary Band Rings

Gourd Red Jade White Diamond Ruby 18K Gold Pendant
By Unbranded
Located in Oakton, VA
Dimensions: 3.20x2.50x0.60cm Materials: "29 White Diamonds 0.25 CT 1 MXJA 16.29 CT 1 Ruby 0.08 CT
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Diamond, Jade, Ruby, 18k Gold

GRA Certified 1.16 Carat Natural Vivid Red Ruby Diamond Ring
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 3.250 grams
Category

2010s Asian Engagement Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

1.00CT Black Diamond with Red Enamel Halo in Platinum Fluorescent
Located in Chicago, IL
1.00CT black diamond that has a red enamel halo surrounding it.
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Purple Sapphire, Black Diamond, 18k Go...

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Red Diamonds For Sale on 1stDibs

There is a broad range of red diamonds for sale on 1stDibs. Frequently made of gold, 18k gold and 14k gold, these items were constructed with great care. Find a collection of 3011 vintage versions or 4763 modern creations for a more contemporary example of these cherished accessories. Our inventory has long been popular, and it includes earlier versions that date to the 18th Century and newer variations that were made as recently as the 21st Century. There are many different pieces in our collection of red diamonds to choose from, but contemporary and modern red diamonds are of considerable interest. There have been many well-made iterations of these items over the years, but those made by Luigi Ferrara, Unbranded and Rolex are often thought to be among the most beautiful. A selection of round cut, oval cut and brilliant cut can be found today on these pages. When shopping our range of red diamonds, you’ll find that there are less available pieces for men today than there are for women.

How Much are Red Diamonds?

Prices for red diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1 and can go as high as $6,000,000, while red diamonds, on average, fetch $4,240.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

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.