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IGI Certified White Gold Diamonds and Emeralds Italian Choker Necklace
Located in Esch sur Alzette, Esch-sur-Alzette
This IGI Certified White Gold Choker Necklace is a breathtaking blend of vintage charm and
Category

Mid-20th Century Italian Modern Choker Necklaces

Materials

Diamond, Emerald, 18k Gold, White Gold

IGI certified 1.91 Carat Colombian Emerald 0.49 Carat Diamond Ring
Located in KOWLOON, HK
- the IGI Certified 1.91 Carat Colombian Emerald ring. This exquisite ring features an bluish green
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Stunning 2.02ct Diamonds Stud Earrings in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Stunning 2.02ct Diamonds Stud Earrings in 18k Yellow Gold - IGI Certified These dazzling diamond
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Sparkling 1.36ct Diamonds Cluster Ring in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Sparkling 1.36ct Diamonds Cluster Ring in 18k Yellow Gold - IGI Certified A timeless symbol of
Category

2010s Israeli Cluster Rings

Materials

Diamond, 18k Gold, Yellow Gold

Timeless 3.02ct Diamonds Stud Earrings in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Timeless 3.02ct Diamonds Stud Earrings in 18k Yellow Gold - IGI Certified Timeless and luminous
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

IGI Certified Diana Vincent 18K Gold Dome Diamond Ring Size 4
Located in Media, PA
IGI Certified Diana Vincent 18K Yellow Gold Dome Ring 0.42ct Natural VS Diamonds Size 4 This
Category

1990s Fashion Rings

Materials

Diamond, 18k Gold

1.00 Carat G Colour Diamond Ring SI2 Clarity IGI Certified
Located in บางรัก, TH
Set with- Stone type: Diamond Shape: Round Carat: 1.00 cts Colour: G Colour Surrounding
Category

2010s Asian Bridal Rings

Materials

Diamond, 18k Gold

Sophisticated 16.25ct Spessartites and Diamonds Bangle in 18k White Gold - IGI
Located in רמת גן, IL
Sophisticated 16.25ct Spessartites and Diamonds Bangle in 18k White Gold - IGI Certified Turn
Category

2010s Israeli Bangles

Materials

Diamond, 18k Gold, White Gold

IGI Certified 2.51ct Colombia Emerald and 0.76ct Natural Diamonds Necklace
Located in Hong Kong, HK
embraced by brilliant-cut diamonds that dance with every movement. At 42cm, this delicate yet striking
Category

21st Century and Contemporary Hong Kong Drop Necklaces

Materials

Diamond, Emerald, Platinum

IGI Certified 100.00 Carats Natural Diamonds Multiple Riviera Tennis Necklace
Located in New Delhi, Delhi
A statement masterpiece. A stunning tennis necklace features a collection of Diamonds , each more
Category

21st Century and Contemporary Multi-Strand Necklaces

Materials

Diamond, 14k Gold

Exquisite 1.75ct Diamonds Eternity Ring in 18k White Gold - IGI Certified
Located in רמת גן, IL
Exquisite 1.75ct Diamonds Eternity Ring in 18k White Gold - IGI Certified This elegant diamond
Category

2010s Israeli Band Rings

Materials

Diamond, 18k Gold, White Gold

Captivating 1.51ct Diamonds Halo Ring in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Captivating 1.51ct Diamonds Halo Ring in 18k Yellow Gold - IGI Certified Exuding warmth and
Category

2010s Israeli Bridal Rings

Materials

Diamond, 18k Gold, Yellow Gold

Radiant 1.03ct Double Excellent Ideal Cut Cushion-Shaped Diamond - IGI Certified
Located in רמת גן, IL
Radiant 1.03ct Double Excellent Ideal Cut Cushion-Shaped Diamond - IGI Certified A true
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1.56ct Triple Excellent Ideal Cut Round-Shaped Diamond - IGI Certified
Located in רמת גן, IL
Dazzling 1.56ct Triple Excellent Ideal Cut Round-Shaped Diamond - IGI Certified Unveil the
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Graceful 4.78ct Diamonds Tennis Bracelet in 18k White Gold - IGI Certified
Located in רמת גן, IL
Graceful 4.78ct Diamonds Tennis Bracelet in 18k White Gold - IGI Certified A classic icon of
Category

2010s Israeli Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23CT Color: D Clarity: VS1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23CT Color: D Clarity: VS1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

1.30CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 1.30CT Color: I Clarity: VVS 2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

IGI Certified Natural Round D Flawless Diamond 950 Platinum Solitaire Ring
Located in Birmingham, GB
IGI Certified Natural Round D Flawless 0.30ct Diamond 950 Platinum Solitaire Ring. A beautifully
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Platinum

IGI Certified 6.00 Carats Natural Heart Diamonds 18K Gold Ring
Located in New Delhi, Delhi
goldsmith. Excellent manufacture and quality of diamonds. Complete with IGI report. Whosale price . Note
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

0.16CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.16 CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.26CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.26 CT Color: D Clarity: VS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

Sparkling 1.08ct Diamonds Pave Ring in 18k Rose Gold - IGI Certified
Located in רמת גן, IL
Sparkling 1.08ct Diamonds Pave Ring in 18k Rose Gold - IGI Certified This 18K rose gold diamond
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

0.23CT IGI Certified Round Brilliant.
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23CT Color: E Clarity: SI1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

Elegant 2.67ct Diamonds Stud Earrings in 18k Rose Gold - IGI Certified
Located in רמת גן, IL
Elegant 2.67ct Diamonds Stud Earrings in 18k Rose Gold - IGI Certified A romantic fusion of
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, Rose Gold

Captivating 3.28ct Diamonds Drop Earrings in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Captivating 3.28ct Diamonds Drop Earrings in 18k Yellow Gold - IGI Certified Unveil pure glamour
Category

2010s Israeli Drop Earrings

Materials

Diamond, 18k Gold, Yellow Gold

0.21CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.21 CT Color: D Clarity: VS1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.15CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.15 CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23 CT Color: D Clarity: SI1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.15CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.15 CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.28CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.28 CT Color: D Clarity: VS1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23 CT Color: D Clarity: VS1 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

Timeless 1.56ct Diamonds Eternity Ring in 14k White Gold - IGI Certified
Located in רמת גן, IL
Timeless 1.56ct Diamonds Eternity Ring in 14k White Gold - IGI Certified Radiating elegance, this
Category

2010s Israeli Band Rings

Materials

Diamond, 14k Gold, White Gold

Brilliant 2.32ct Diamonds Band Ring in 18k White Gold - IGI Certified
Located in רמת גן, IL
Brilliant 2.32ct Diamonds Band Ring in 18k White Gold - IGI Certified Pure elegance in every
Category

2010s Israeli Band Rings

Materials

Diamond, 18k Gold, White Gold

IGI 14K 12.15 ct Kunzite&Diamond Antique Art Deco Engagement Ring
Located in Kaohsiung City, TW
*IGI 14K 12.15 ct Kunzite&Diamonds Antique Art Deco Engagement Ring* Natural intense purplish
Category

21st Century and Contemporary Taiwanese Contemporary Engagement Rings

Materials

Diamond, White Diamond, Kunzite, Gold, 14k Gold, Yellow Gold

IGI 14K 16.51 ct Kunzite&Diamond Antique Art Deco Engagement Ring
Located in Kaohsiung City, TW
*IGI 14K 16.51 ct Kunzite&Diamonds Antique Art Deco Engagement Ring* Natural intense purplish
Category

21st Century and Contemporary Taiwanese Contemporary Engagement Rings

Materials

Diamond, White Diamond, Kunzite, Gold, 14k Gold, Yellow Gold

Timeless 1.86ct Diamonds Pave Ring in 18k Rose Gold - IGI Certified
Located in רמת גן, IL
Timeless 1.86ct Diamonds Pave Ring in 18k Rose Gold - IGI Certified This romantic 18K rose gold
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Rose Gold

Dazzling 2.64ct Diamonds Necklace with Double Halo Heart Pendant - IGI Certified
Located in רמת גן, IL
Dazzling 2.64ct Diamonds Necklace with Double Halo Heart Pendant in 14k White Gold - IGI Certified
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

0.23CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.23 CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.24CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.24 CT Color: D Clarity: VS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

0.17CT IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 0.17 CT Color: D Clarity: VVS2 Cut
Category

2010s Botswanan Modern Loose Gemstones

Materials

Diamond

Luminous 1.31ct Diamonds Pave Ring in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Luminous 1.32ct Diamonds Pave Ring in 18k Yellow Gold - IGI Certified Radiating classic charm with
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

IGI Certified 0.40ct Marquise Diamond Ring in 18ct White Gold
Located in London, GB
IGI Certified 0.40ct Marquise Diamond Ring, Set In 18ct White Gold Additional Information: Total
Category

2010s British Solitaire Rings

Materials

Diamond, White Gold, 18k Gold

3.05ct IGI Certified Round Brilliant
Located in kOWLOON, HK
Natural Diamond graded by IGI. Shape: Round Brilliant Weight: 3.05 CT Color
Category

2010s Indian Modern Loose Gemstones

Materials

Diamond

Radiant 2.03ct Diamonds Stud Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
Radiant 2.03ct Diamonds Stud Earrings in 18k White Gold - IGI Certified A timeless essential
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Exquisite 2.02ct Diamonds Stud Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
Exquisite 2.02ct Diamonds Stud Earrings in 18k White Gold - IGI Certified These exquisite 2.02ct
Category

2010s Israeli Stud Earrings

Materials

Diamond, 18k Gold, White Gold

Radiant 5.60ct Diamonds Tennis Bracelet in 18k White Gold - IGI Certified
Located in רמת גן, IL
Radiant 5.60ct Diamonds Tennis Bracelet in 18k White Gold - IGI Certified Exuding timeless
Category

2010s Israeli Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Precious 1.21ct Diamonds Necklace with Halo Heart-Shaped Pendant - IGI Certified
Located in רמת גן, IL
Precious 1.21ct Diamonds Necklace with Halo Heart-Shaped Pendant in 18k White Gold - IGI Certified
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Luxurious 1.41ct Diamonds Ring in 18k Yellow White Gold - IGI Certified
Located in רמת גן, IL
Luxurious 1.41ct Diamonds Ring in 18k Yellow White Gold - IGI Certified This refined 18k
Category

2010s Israeli Cluster Rings

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

IGI Certified 14K White Gold 5.0 Carat Diamond Tennis Bracelet
Located in New York, NY
Elevate her attire with the luxe look of this magnificent diamond tennis bracelet. Crafted in cool
Category

21st Century and Contemporary Indian Contemporary Tennis Bracelets

Materials

Diamond, White Diamond, 14k Gold, White Gold

IGI Certified 1.81 Carat Sapphire and Diamond Ring in Platinum
Located in KOWLOON, HK
diamonds, featuring a harmonious blend of brilliant and tapered baguette cuts, totaling an impressive 0.65
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Sapphire, Platinum

IGI Certified 29.42ct Natural Emeralds 1.77ct Natural Diamonds Gold Necklace
Located in Hong Kong, HK
stunning collection of IGI certified natural Zambian emeralds totaling 29.42 carats in mesmerizing intense
Category

21st Century and Contemporary Hong Kong Link Necklaces

Materials

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

Brilliant 1.40ct Diamonds Eternity Ring in 18k White Gold - IGI Certified
Located in רמת גן, IL
Brilliant 1.40ct Diamonds Eternity Ring in 18k White Gold - IGI Certified Celebrate everlasting
Category

2010s Israeli Band Rings

Materials

Diamond, 18k Gold, White Gold

Elegant 1.56ct Diamonds Pave Ring in 18k White Gold - IGI Certified
Located in רמת גן, IL
Elegant 1.56ct Diamonds Pave Ring in 18k White Gold - IGI Certified This exquisite ring in 18k
Category

2010s Israeli Engagement Rings

Materials

Diamond, 18k Gold, White Gold

Brilliant 0.90ct Triple Excellent Ideal Cut Round-Shaped Diamond - IGI Certified
Located in רמת גן, IL
Brilliant 0.90ct Triple Excellent Ideal Cut Round-Shaped Diamond - IGI Certified Discover the
Category

2010s Israeli Loose Gemstones

Materials

Diamond

IGI Certified 2.00 Carat Emerald Shape Diamond 18K Gold Ring
Located in New Delhi, Delhi
An exquisite Diamond solitaire ring, in a particular design, so elegant and refined style. Elevate
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, Emerald, 18k Gold

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Igi Diamonds For Sale on 1stDibs

On 1stDibs, there are many options to choose from in our inventory of igi diamonds. Frequently made of Gold, White Gold and 14k Gold, these items were constructed with great care. Our collection of these items for sale includes 30 vintage editions and 202 modern creations to choose from as well. Our inventory has long been popular, and it includes earlier versions that date to the 19th Century and newer variations that were made as recently as the 21st Century. Modern and Contemporary are consistently popular styles when it comes to igi diamonds. Many examples in our inventory of these items are appealing no matter their origins, but Privosa Fine Jewelry, Antinori Fine Jewels and Fine Jewels UK produced popular versions that are worth a look. Today, if you’re looking for round cut igi diamonds and are unable to find the perfect match, our selection also includes oval cut and emerald cut alternatives. Most of our igi diamonds for sale are for women, but there are 112 pieces available to browse for men.

How Much are Igi Diamonds?

Prices for igi diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $395 and can go as high as $250,000, while igi diamonds, on average, fetch $4,800.

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.