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IGI Certified 1.78 Carat M Colour SI2 Clarity Diamond
Located in บางรัก, TH
its cut and appearance. Also, IGI certified diamond is that has been graded by the International
Category

2010s Asian Loose Gemstones

Materials

Diamond

IGI Certified 0.33 Carat L Colour VS1 Clarity Diamond
Located in บางรัก, TH
diamonds with flawless or internally flawless clarity grades. Also, IGI Certified Diamond refers to a
Category

2010s Asian Loose Gemstones

Materials

Diamond

IGI Certified Brown Diamond Ring Diamond Setting 2.25 Carats 18K Yellow Gold
Located in Punta Gorda, FL
It comes with the original IGI Certificate All Gemstones are Natural IGI Certified Brown Diamond
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Brown Diamond, Gold, 18k Gold, Yellow Gold

IGI Certified Brown Diamond Ring Diamond Halo 3.53 Carats 18K Rose Gold
Located in Punta Gorda, FL
It comes with the IGI Certificate All Gemstones are Natural IGI Certified Brown Diamond = 3.01
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Brown Diamond, White Diamond, Diamond, Rose Gold, 18k Gold, Gold

IGI Certified 1.00 Carat F Colour SI2 Clarity Diamond
Located in บางรัก, TH
18kt white gold ring with diamonds Gold colour & karat: White gold 18kt Weight: 2.81 grams
Category

2010s Asian Engagement Rings

Materials

Diamond, 18k Gold, White Gold

IGI Certified Gold Necklace with Diamonds and Aquamarines
Located in Esch sur Alzette, Esch-sur-Alzette
This IGI Certified Gold Necklace is an exquisite piece of jewelry that seamlessly combines luxury
Category

Mid-20th Century French Retro Drop Necklaces

Materials

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

IGI Certified 1.00 Carat F Colour SI2 Clarity Diamond
Located in บางรัก, TH
affordability, offering value without sacrificing too much on appearance. Our IGI Certified diamond is that has
Category

2010s Asian Loose Gemstones

Materials

Diamond

Platinum Diamond Necklace Crafted with 4.23CTW of Diamonds, Certified by IGI
Located in Webster, NY
Stunning certified custom made diamond drop necklace made with 4.23CTW of Diamonds. Gemstone
Category

20th Century Drop Necklaces

Materials

Diamond, Platinum

IGI Certified Diamond Ring 0.29 Carats 14K Rose Gold
Located in Punta Gorda, FL
It comes with the original IGI Certificate All Gemstones are Natural Diamonds = 0.29 Carats Cut
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Gold, 14k Gold, Rose Gold

IGI Antwerp Bypass Heart Shape Diamond and Ruby Ring
By Antinori Fine Jewels
Located in Chicago, IL
An amazing bypass moi & toi platinum ring set with a 2 carat heart shape diamond certified by GIA
Category

2010s Unknown Contemporary Cluster Rings

Materials

Diamond, White Diamond, Ruby, Platinum

IGI Certified 1.01 Carat J Colour VS1 Clarity Diamond
Located in บางรัก, TH
a great choice for those seeking a diamond with exceptional beauty and value. AIso, IGI certified
Category

2010s Asian Loose Gemstones

Materials

Diamond

IGI Certified Brown Diamond Ring Diamond Halo 3.53 Carats 18K Rose Gold
Located in Punta Gorda, FL
It comes with the IGI Certificate All Gemstones are Natural IGI Certified Brown Diamond = 3.01
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Brown Diamond, White Diamond, Diamond, Rose Gold, 18k Gold, Gold

IGI Certified 7.50 Carats Natural Diamond 18K Gold Necklace
Located in New Delhi, Delhi
a IGI Certified of 7.50 Carats, H color SI clarity, very sparkly diamond. Handcrafted by artisan
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold

IGI Certified 3.60 Carats Natural Diamonds 18K Gold Earrings
Located in New Delhi, Delhi
with two pieces of IGI Certified Natural Diamonds in perfect round brilliant cut , of 1,80 carats
Category

21st Century and Contemporary Stud Earrings

Materials

Diamond, 18k Gold

Exquisite 0.81ct Natural Pair of Round-Shaped Diamonds - IGI Certified
Located in רמת גן, IL
Exquisite 0.81ct Natural Pair of Round-Shaped Diamonds - IGI Certified This exquisite diamond pair
Category

2010s Israeli Loose Gemstones

Materials

Diamond

IGI Certified 11.02 Carats Diamonds 18K Gold Tennis Necklace
Located in New Delhi, Delhi
. Complete with international IGI report. Handmade by artisan goldsmith. Excellent manufacture. Wholesale
Category

21st Century and Contemporary Contemporary Drop Necklaces

Materials

Diamond, 18k Gold

IGI Certified 1.00 Carats Natural Diamond 18K Gold Ring
Located in New Delhi, Delhi
elegance on your outfit. Stunning ring come in 18K gold with a IGI certified Natural Diamonds of 1,00 carat
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

IGI Certified 7.00 Carats Natural Diamond 18K Gold Ring
Located in New Delhi, Delhi
18K gold with IGI Certified 7.00 Carats of Natural Diamonds in perfect emerald cut , H color SI2
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

IGI 18K 2.07 Ct Emerald&Diamonds Antique Engagement Ring
Located in Kaohsiung City, TW
*IGI 18K 2.07 Ct Emerald&Diamonds Antique Engagement Ring* An IGI-certified natural vivid green
Category

21st Century and Contemporary Taiwanese Contemporary Engagement Rings

Materials

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

IGI Certified Brown Diamond Ring Diamond Setting 2.25 Carats 18K Yellow Gold
Located in Punta Gorda, FL
It comes with the original IGI Certificate All Gemstones are Natural IGI Certified Brown Diamond
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, White Diamond, Brown Diamond, Gold, 18k Gold, Yellow Gold

Fancy Diamond Bracelet Marquise Oval 12.59 Carat, IGI certified
Located in Ramat Gan, IL
A beautifully linked Diamond Bracelet with Total 12.59 CARAT of Oval and Marquise Shaped Diamonds
Category

21st Century and Contemporary Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, White Gold

Luxurious 1.22ct Natural Pair of Round-Shaped Diamonds - IGI Certified
Located in רמת גן, IL
Luxurious 1.22ct Natural Pair of Round-Shaped Diamonds - IGI Certified This dazzling duo of round
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1.30ct Natural Pair of Round-Shaped Diamonds - IGI Certified
Located in רמת גן, IL
Sparkling 1.30ct Natural Pair of Round-Shaped Diamonds - IGI Certified This stunning matched pair
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Brilliant 1.45ct Natural Pair of Round-Shaped Diamonds - IGI Certified
Located in רמת גן, IL
Brilliant 1.45ct Natural Pair of Round-Shaped Diamonds - IGI Certified This luxurious pair of
Category

2010s Israeli Loose Gemstones

Materials

Diamond

IGI Certified 8.01 Carats Diamond 18K Gold Solitaire Ring
Located in New Delhi, Delhi
in 18k gold with a natural pear cut diamond of 8.01 carats, I color, SI2 clarity , excellent polish
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

IGI Certified White Gold Necklace with Sapphire and Diamond
Located in Esch sur Alzette, Esch-sur-Alzette
brilliance with this IGI Certified White Gold Necklace, featuring a stunning sapphire and diamond combination
Category

21st Century and Contemporary Italian Modern Drop Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold

IGI Certified 7.50 Ct Heart Diamond 18K Gold Necklace
Located in New Delhi, Delhi
natural diamonds. Investment diamond are always the best choose. Complete with IGI report for centre
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold

IGI Certified Brown Diamond Ring Diamond Halo 3.53 Carats 18K Rose Gold
Located in Punta Gorda, FL
It comes with the IGI Certificate All Gemstones are Natural IGI Certified Brown Diamond = 3.01
Category

21st Century and Contemporary Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Brown Diamond, Gold, 18k Gold, Rose Gold

GIA/IGI Certified 10.00 Carats Diamonds 18K Gold Earrings
Located in New Delhi, Delhi
in 18k gold with 2 pieces of Natural Diamonds , in perfect heart cut, of 5 carats + 5 carats, F/G -VS
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, 18k Gold

IGI Certified 1.00 Carats Diamonds 18k Gold Solitaire Ring
Located in New Delhi, Delhi
An exquisite design from love collection in 18k gold with a IGI certified natural diamond heart
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

IGI Certified 0.45ct Natural Diamond Three-Stone Engagement Ring
Located in Sant Josep de sa Talaia, IB
diamond’s authenticity and quality. Each IGI certification includes a detailed report covering color
Category

21st Century and Contemporary European Contemporary Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

IGI Certified 0.50ct Natural Diamond Three-Stone Engagement Ring
Located in Sant Josep de sa Talaia, IB
International Gemological Institute (IGI) is one of the world’s most respected institutions for diamond and
Category

21st Century and Contemporary European Contemporary Three-Stone Rings

Materials

Diamond, 18k Gold, White Gold

IGI Certified, 0.76ct Princess Cut Diamond Engagement Ring, 18K
Located in Sant Josep de sa Talaia, IB
Size (Resizable at no cost) US 7 UK N½ EU 54 Experience the perfect proposal with this IGI
Category

21st Century and Contemporary European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

IGI Certified 10.00 Carats VS1 Diamond 18K Gold Solitaire
Located in New Delhi, Delhi
An exclusive Diamond solitaire ring in adorable contemporary design, so elegant a d refined style
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

IGI Certified 0.55ct Natural Diamond Engagement Ring in 18K
Located in Sant Josep de sa Talaia, IB
Timeless 0.55ct Natural Diamond Engagement Ring in 18K White Gold – IGI Certified This elegant 18K
Category

21st Century and Contemporary European Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

Exquisite 2.33ct Diamonds Necklace in 18k Yellow Gold - IGI Certified
Located in רמת גן, IL
Exquisite 2.33ct Diamonds Necklace in 18k Yellow Gold - IGI Certified A vivid symphony of color
Category

2010s Singaporean Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

IGI Certified 9.00 Carats Diamond 18K Gold Unisex Ring
Located in New Delhi, Delhi
Turning dreams into reality. This magnificent 9,00 carat Natural Diamond is a epitome of luxury
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, 18k Gold

Stunning 1.03ct Diamonds Necklace in 18k White Gold - IGI Certified
Located in רמת גן, IL
Stunning 1.03ct Diamonds Necklace in 18k White Gold - IGI Certified This elegant diamond necklace
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

IGI Certified Round cut Colombian Emerald, Yellow Diamond and White Diamond Ring
By HYT
Located in Hong Kong, HK
Natural Yellow Diamonds and White Diamonds. This exquisite ring effortlessly captures light, blending
Category

2010s Hong Kong Victorian Bridal Rings

Materials

White Diamond, Yellow Diamond, Emerald, 18k Gold

GIA IGI Certified Old European Diamond Engagement Ring
Located in Ramat Gan, IL
-carat Old European cut diamond at its center. The classic Old European cut, known for its vintage charm
Category

Early 20th Century American Art Deco Engagement Rings

Materials

Diamond, 14k Gold, White Gold

IGI Certified 5 Ct of Diamond on Solitaire Ring
Located in New Delhi, Delhi
diamonds F/VS. Handmade jewelry by artisan goldsmith. Excellent manufacture and quality. Complete with IGI
Category

21st Century and Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Dazzling 3.38ct Diamonds Necklace in 18k White Gold - IGI Certified
Located in רמת גן, IL
Dazzling 3.38ct Diamonds Necklace in 18k White Gold - IGI Certified This stunning diamond necklace
Category

2010s Israeli Drop Necklaces

Materials

Diamond, 18k Gold, White Gold

Stunning 8.10ct Diamonds Bangle in 18k White Gold - IGI Certified
Located in רמת גן, IL
Stunning 8.10ct Diamonds Bangle in 18k White Gold - IGI Certified This breathtaking diamond bangle
Category

2010s Israeli Bangles

Materials

Diamond, 18k Gold, White Gold

Dazzling 1.25ct Diamonds Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
Dazzling 1.25ct Diamonds Earrings in 18k White Gold - IGI Certified These dazzling diamond
Category

2010s Israeli Lever-Back Earrings

Materials

Diamond, 18k Gold, White Gold

Graceful 4.44ct Diamonds Bracelet in 18k White Gold - IGI Certified
Located in רמת גן, IL
Graceful 4.44ct Diamonds Bracelet in 18k White Gold - IGI Certified This exquisite diamond
Category

2010s Israeli Link Bracelets

Materials

Diamond, 18k Gold, White Gold

Captivating 1.59ct Diamonds Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
Captivating 1.59ct Diamonds Earrings in 18k White Gold - IGI Certified These exquisite 18k white
Category

2010s Singaporean Drop Earrings

Materials

Diamond, 18k Gold, White Gold

Sophisticated 6.25ct Diamonds Bracelet in 18k White Gold - IGI Certified
Located in רמת גן, IL
Sophisticated 6.25ct Diamonds Bracelet in 18k White Gold - IGI Certified Crafted in luminous 18k
Category

2010s Israeli Link Bracelets

Materials

Diamond, 18k Gold, White Gold

Captivating 5.12ct Diamonds Bangle in 18k White Gold - IGI Certified
Located in רמת גן, IL
Captivating 5.12ct Diamonds Bangle in 18k White Gold - IGI Certified This luxurious diamond bangle
Category

2010s Israeli Bangles

Materials

Diamond, 18k Gold, White Gold

IGI Certified Diamond Natural Emerald Diamond Pendant Hallmark 18K Gold Pendant
Located in Delhi, DL
Yellow Gold with excellent diamonds to add into the fire. Details are here below: Item No- E111 Metal
Category

2010s Indian Art Nouveau Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

Sophisticated 1.26ct Diamonds Necklace with Heart-Halo Pendant - IGI Certified
Located in רמת גן, IL
Sophisticated 1.26ct Diamonds Necklace with Heart-Halo Pendant in 18k Yellow Gold - IGI Certified
Category

2010s Israeli Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

IGI Certified 7.00 Carat Diamond 18k Gold Solitaire Ring
Located in New Delhi, Delhi
Elevate your look with a unparalleled sparkly Diamond solitaire ring. This magnificent ring is a
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, 18k Gold

Luxurious 2.16ct Diamonds Bracelet in 20k Yellow Gold - IGI Certified
Located in רמת גן, IL
Luxurious 2.16ct Diamonds Bracelet in 20k Yellow Gold - IGI Certified Radiating timeless elegance
Category

2010s Israeli Link Bracelets

Materials

Diamond, Yellow Gold

IGI 12.50 Carats Pear Shape Diamonds 18K Gold Earrings
Located in New Delhi, Delhi
diamonds are arranged in a pavé shape with a total of 3 rows. The earrings are made from high quality 18k
Category

21st Century and Contemporary Chandelier Earrings

Materials

Diamond, 18k Gold

Dazzling 1.36ct Diamonds Earrings in 18k White Gold - IGI Certified
Located in רמת גן, IL
Dazzling 1.36ct Diamonds Earrings in 18k White Gold - IGI Certified Sleek and timeless, these 18k
Category

2010s Israeli Lever-Back Earrings

Materials

Diamond, 18k Gold, White Gold

IGI Certified Natural Diamond cabochon Emerald Diamond Hallmark 18K Gold Pendant
Located in Delhi, DL
Diamond Clarity- I1 Diamond Cut- Round brilliant cut *Certification Of Jewelery* Lab- IGI (International
Category

2010s Indian Art Nouveau Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

IGI Certified Diamond Natural Emerald Diamond Pendant Hallmark 18K Gold Pendant
Located in Delhi, DL
Yellow Gold with excellent diamonds to add into the fire. Details are here below: Item No- E119 Metal
Category

2010s Indian Art Nouveau Pendant Necklaces

Materials

Diamond, Emerald, 18k Gold

IGI Certified 7.50 Carat Oval Cut Diamond Solitaire Ring
Located in New Delhi, Delhi
design , attire attention on extra sparkly centre big Diamonds, and capture a vibrant brilliant light
Category

21st Century and Contemporary Contemporary Solitaire Rings

Materials

Diamond, 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.